Hioki 3455 Instruction Manual Download

Page: 73 / 181

3.2 Measuring Insulation Resistance

付録

索引

Every time

key is pressed, the indi-

cation changes in the order: resistance

→

current

→

DAR 1 min/15s

→

DAR 1 min/30s

→

resistance

→

current

→

etc.

❖

PI/DAR

→

See 4.2 "Displaying PI and DAR"

(page 83).

3.2.6

Insulation Resistance Measurement
Basis

When a high DC voltage is applied to an
object under test, a leakage current flows.
The insulation resistance tester measures
the applied voltage V and the combined
leakage current I and then calculates the
insulation resistance R.

Calculation formula R = V/I

and I

gradually decrease after the volt-

age is applied.

Holding data after measurement

If the indication is unstable, press the

key. The

average of the measurements is shown.
[

< 1.00 nA

] means "below 1.00 nA."

Applied
voltage

Insulation

tester

Capacity

Insulation

resistance

Steady-state

leakage
current

Ｉ

Charge

current

Ｉ

Absorption

current

Ｉ

Insulating material

Combined leakage current I

Current

detector

www.

.com

[email protected]

1.800.561.8187

Summary of Contents for 3455

Page 1: ...HIGH VOLTAGE INSTRUCTION MANUAL 3455 INSULATION HiTESTER www com information itm com 1 800 561 8187 ...

Page 2: ... Preparations 31 2 1 Supplying Power 31 2 1 1 Installing or Replacing the Battery 31 2 1 2 Installing the Battery Pack Rechargeable nickel hydrogen battery 34 2 1 3 Connecting the AC Adapter 39 2 1 4 Charging the Battery Pack 41 2 2 Turning Power On and Off 44 2 2 1 Auto Power Off 45 2 3 Setting and Checking Date and Time 46 2 3 1 Setting Date and Time 46 2 3 2 Checking Date and Time 49 2 4 Connec...

Page 3: ...uring Voltage 73 3 4 Measuring Temperature 76 3 4 1 Measurement Procedure 76 4 Advanced Measurement 79 4 1 Using Timer 79 4 1 1 Setting Timer Conducting Insulation Resistance Measurement 79 4 2 Displaying PI and DAR 83 4 3 Temperature Correction TC 87 4 3 1 Performing Temperature Correction 88 4 3 2 Exiting Temperature Correction Mode 92 4 4 Step Voltage Test 93 4 4 1 Setting and Conducting a Step...

Page 4: ... PI Calculation 123 6 1 1 Changing Interval Setting 123 6 1 2 Checking Interval Setting 125 6 2 Changing and Checking Voltage Application Time for Step Voltage Test 126 6 2 1 Changing Time Setting 126 6 2 2 Checking Time Setting 128 6 3 Entering Temperature and Humidity Measured with External Thermometer and Hygrometer 129 6 3 1 Entering and Saving 130 6 3 2 Clearing Indications of Temperature and...

Page 5: ...ent 157 8 Maintenance and Service 159 8 1 Troubleshooting 160 8 2 Cleaning 162 8 3 Error Display 162 8 4 Performing System Reset 165 8 5 Discarding the Instrument 166 Appendix 169 Appendix 1 Test Voltage Characteristic Graph 169 Appendix 2 Example of Insulation Resistance Criteria 170 Appendix 3 Example of PI Criteria Polarization Index 170 Appendix 4 Temperature Correction Table 171 www com infor...

Page 6: ...Adobe and Adobe Reader are registered trademark of Adobe Systems Incorporated Verifying Package Contents Open the case When you receive the instrument inspect it carefully to ensure that no damage occurred during shipping In particular check the accessories panel switches and connectors If damage is evident or if it fails to operate according to the specifications contact your dealer or Hioki repr...

Page 7: ...kage Contents Open the case 2 Procedure 1 Draw the latch outwards with your fin ger 2 While raising the entire latch place a finger on the top of the latch and pull it out www com information itm com 1 800 561 8187 ...

Page 8: ...HIGH VOLTAGE INSULATION HiTESTER 1 9750 01 02 03 TEST LEAD Red Black Blue Lead length Approx 3 m 1 each LR6 alkaline battery 6 Instruction Manual This book 1 USB Cable 1 9751 01 02 03 ALLIGATOR CLIP Red Black Blue 1 each CD R Data Analysis Software for 3455 1 www com information itm com 1 800 561 8187 ...

Page 9: ...n regards to temperature characteristics See 7 2 Measurement Specifications page 152 9631 01 05 TEMPERATURE SENSOR Used for temperature measurement 9631 01 Lead length Approx 1 m 9631 05 Lead length Approx 6 cm 9459 BATTERY PACK Rechargeable nickel hydrogen battery The 9753 AC ADAPTER is required for charging 9753 AC ADAPTER Input 100 to 240 VAC Output 12 VDC 3 33 A www com information itm com 1 8...

Page 10: ...could result in injury or death as well as damage to the instrument Be certain that you understand the instructions and precautions in the manual before use We disclaim any responsibility for accidents or injuries not resulting directly from instrument defects In the manual the symbol indicates particularly impor tant information that the user should read before using the instrument The symbol pri...

Page 11: ...o the user or damage to the instrument Indicates advisory items related to performance or cor rect operation of the instrument Indicates a prohibited action Indicates the location of reference information Indicates quick references for operation and remedies for troubleshooting Indicates that descriptive information is provided below dgt resolution The smallest displayable unit on a digital measur...

Page 12: ... category than that for which the instrument is rated could result in a severe accident and must be carefully avoided Never use a CAT I measuring instrument in CAT II III or IV environments The measurement categories comply with the Overvoltage Categories of the IEC60664 Standards CAT I Secondary electrical circuits connected to an AC electri cal outlet through a transformer or similar device CAT ...

Page 13: ...r shipping If you find any damage contact your dealer or Hioki representative Preliminary Checks Before using the instrument make sure that the insulation on the test leads and cables is undamaged and that no bare conductors are improperly exposed Using the product in such conditions could cause an electric shock so contact your dealer or Hioki representative for replacements Model 9750 01 02 03 T...

Page 14: ... 90 RH or less no condensation Voltage measurement temperature mea surement 23 5 C 73 9 F 90 RH or less no condensation Placement To avoid malfunctions and accidents do not place the tester where it will be exposed to any of the following Direct sunlight High temperature Corrosive or explosive gas Sprayed splashed water Highhumidity with condensation Strong electromag netic fields Electrically cha...

Page 15: ...re parts are present within Do not use the tester in environments containing ignitable gases explosive powders etc Risk of explosion Do not place the tester on an unstable or uneven surface If the tester falls electric shock or tester malfunction may result This tester handles high voltages To avoid electric shock always wear appropriate insulated protection such as rubber gloves rubber boots as w...

Page 16: ...e about the dangers involved Never modify the instrument Only Hioki service engineers should disassemble or repair the instrument Failure to observe these precautions may result in fire electric shock or injury Place the cover on the tester when not in use After use always turn OFF the power To avoid damage to the tester do not connect an external device to the USB terminal or the temperature sens...

Page 17: ...ace use a spirit based felt pen Do not use a ball point pen or hard tipped pen because there is a danger of scratching the surface and corrupting the data Do not use adhesive labels Do not expose the disc directly to the sun s rays or keep it in conditions of high tempera ture or humidity as there is a danger of warp ing with consequent loss of data To remove dirt dust or fingerprints from the dis...

Page 18: ...power supply 3 3 P 73 Temperature measurement To measure a temperature 3 4 P 76 Applied Timer To automatically end measurement after a predetermined time 4 1 P 79 Display PI and DAR values To check whether the insulation re sistance increases with time after a voltage is applied When the PI polarization index value or the DAR dielectric absorp tion ratio value is close to 1 the tester determines t...

Page 19: ...e of an object chang es according to test voltage applied 4 4 P 93 Memory To save the measurement data 5 P 101 PC Communica tion To create tables or graphs of the data saved in the memory for re ports etc 6 4 P 134 Function Purpose Reference page www com information itm com 1 800 561 8187 ...

Page 20: ...data may be displayed on the LCD or downloaded to a PC 5 Recording Measurement Data Memory Func tion page 101 6 4 Communicating with PC page 134 The large display provides easy viewing Measurements may also be displayed using a logarithmic bar graph offering the feel of an analog meter The LCD is backlit enabling measurement in poor lighting conditions The tester has a USB interface Data stored in...

Page 21: ...he tester may be powered by either alka line or rechargeable nickel hydrogen batter ies Selectable via switch 2 1 1 Installing or Replacing the Battery page 31 2 1 2 Installing the Battery Pack Rechargeable nickel hydrogen battery page 34 Compact hard case Dual battery power supply www com information itm com 1 800 561 8187 ...

Page 22: ...459 BATTERY PACK 9750 01 02 03 TEST LEAD 9751 01 02 03 ALLIGATOR CLIP 9631 01 05 TEMPERATURE SENSOR for temperature measurement 1 3 Measurement Overview Purpose Inspection of high voltage electrical facilities Location High voltage receiving station or trans forming station Test object Large motors transformers cables etc Measures insulation resistance voltage and tem perature Stores measurement d...

Page 23: ...nnection of test leads temperature sensor and USB cable Insulation Resistance Measurement 3 2 Measuring Insulation Resistance page 56 1 Prepare for measurement 2 Measurement Preparations page 31 2 Start measurement 1 Make sure that power supply to the object under test is turned off 2 Press the key to turn on the tester 2 2 page 44 www com information itm com 1 800 561 8187 ...

Page 24: ...58 4 Press the key and set the test voltage 3 2 1 page 58 GUARD terminal Warning Confirm that the power supply to the object under test has been turned off Object to be measured Ex Motor terminal terminal Test lead Red Attach to a metal chassis or a ground terminal Test lead Black Attach to a metal part of the power supply terminal www com information itm com 1 800 561 8187 ...

Page 25: ... 3 2 1 page 58 6 Read the indication 3 2 1 page 58 7 Press the key to stop voltage generation and measure ment 3 2 2 page 64 8 The automatic discharge function is activated 3 2 4 page 67 9 Measurement is terminated when the voltage falls below 10 V www com information itm com 1 800 561 8187 ...

Page 26: ...e Measurement 3 3 Measuring Voltage page 73 1 Connect the test leads into the and termi nals of the tester and to the object to be tested 2 Read the indication terminal terminal GUARD terminal Test lead Red Test lead Black www com information itm com 1 800 561 8187 ...

Page 27: ...easurement 3 4 Measuring Temperature page 76 1 Insert the temperature sensor into the tempera ture sensor terminal of the tester 2 Read the indication 3 Press the key to stop temperature mea surement www com information itm com 1 800 561 8187 ...

Page 28: ... and temperature mea surement data are held after measurement is completed This data will be cleared if power is turned off To store the data use the memory func tion 3 Record measurement data 5 Recording Measurement Data Memory Function www com information itm com 1 800 561 8187 ...

Page 29: ...1 4 Names and Functions of Parts 24 1 4 Names and Functions of Parts Front 1 2 3 LCD Slide the shutter Operating panel page 26 4 5 6 7 www com information itm com 1 800 561 8187 ...

Page 30: ...ls when test leads are connected to the measurement terminals a safety feature 5 measurement terminal Connect the red test lead to this terminal 2 4 Connecting Test Lead page 50 6 measurement terminal Connect the black test lead to this terminal 2 4 Connecting Test Lead page 50 7 GUARD terminal Connect the blue test lead to this terminal 3 2 7 Use of GUARD Terminal page 71 These are referred to si...

Page 31: ...ine adjustments to test voltage Used to move the cursor to change units val ues etc Used to display the date and time Used to set the date and time 5 Used to make fine adjustments to test voltage Used to move the cursor to change units val ues etc Used to display the timer Used to set the timer 6 Used to confirm entries Used to stop temperature measurement Operating panel 6 7 2 1 8 9 10 13 14 15 1...

Page 32: ...play of current and resistance on the LCD When the resistance value is held This key changes LCD display in the following sequence resistance current DAR 1 min 15s DAR 1 min 30s PI resistance current 10 Used to view held temperature data Used to enter the temperature of an external thermometer 11 Used to reduce drift of resistance or current reading 12 Used to enter the temperature correction mode...

Page 33: ...een Setup 28 3 3 Measuring Voltage page 73 3 4 Measuring Temperature page 76 1 5 Screen Setup All On Measuring Voltage Measured voltage Blinking Measuring Temperature www com information itm com 1 800 561 8187 ...

Page 34: ...n Resistance Actual output voltage Blinking blinks if the input exceeds the measure ment range Elapsed time Insulation resistance The screen is switched over with the key Leakage Current Display Blinking Elapsed time Actual output voltage The bar graph shows the resistance measurement blinks at below 1 nA Current measurement www com information itm com 1 800 561 8187 ...

Page 35: ...eparations 2 2 1 Supplying Power To avoid electric shock turn off the power switch and disconnect the test leads before replacing the batteries Do not mix old and new batteries or dif ferent types of batteries Also be care ful to observe battery polarity during installation Otherwise poor perfor mance or damage from battery leakage could result After replacing the batteries replace the battery cov...

Page 36: ...ove the battery cover When the battery status indicator is low replace the batteries Use the specified batteries only Do not use manganese batteries for example since operating time will be greatly reduced To avoid corrosion from battery leakage remove the batteries from the instrument if it is to be stored for a long time Set screw Remove Battery cover www com information itm com 1 800 561 8187 ...

Page 37: ...ry compartment Replace all six at the same time 4 Turn the battery selector switch to LR6 When the power is turned on Lr6 appears on the top left of the screen See 2 2 Turning Power On and Off page 44 5 Replace the battery cover and tighten the set screw To LR6 www com information itm com 1 800 561 8187 ...

Page 38: ...or damage related to the use of any other batteries To avoid heat buildup rupture or leak age of the battery do not use if dam aged wires are exposed or the battery tester connector is damaged To avoid electric shock be sure to dis connect the test leads from the tester turn off power and disconnect the AC adapter from the tester before installing or removing the battery pack To avoid the possibil...

Page 39: ...30 C to prevent deterioration Charge the battery at least every 2 months If the battery pack is left for a long period of time in a low state of charge its performance will be degraded When the battery status indicator is low charge the battery pack The charge stored in the battery pack naturally dissipates over time therefore be sure to charge the battery pack before use If the operating time is ...

Page 40: ...urn the battery selector switch to 9459 When the power is turned on bP appears on the top left of the screen See 2 2 Turning Power On and Off page 44 6 Replace the battery cover and tighten the set screw Be careful not to catch the battery pack cable in the battery cover to prevent damaged wiring To 9459 www com information itm com 1 800 561 8187 ...

Page 41: ...nnect the test leads AC adapter and USB cable from the tester See 2 2 Turning Power On and Off page 44 2 Loosen the set screw on the rear of the tester and remove the battery cover 3 Disconnect the plug of the battery pack from the connector of the tester Set screw Remove Battery cover www com information itm com 1 800 561 8187 ...

Page 42: ...the battery pack in the battery pack compartment 6 Turn the battery selector switch to 9459 When the power is turned on bP appears on the top left of the screen See 2 2 Turning Power On and Off page 44 7 Place the battery cover and tighten the screw To 9459 www com information itm com 1 800 561 8187 ...

Page 43: ...ff before connect ing the AC adapter to the instrument and to AC power Use only the specified Model 9753 AC ADAPTER AC adapter input voltage range is 100 to 240 VAC with 10 sta bility at 50 60 Hz To avoid electrical hazards and damage to the instrument do not apply voltage outside of this range To avoid electrical accidents and to maintain the safety specifications of this instrument connect the p...

Page 44: ...ted supply voltage of the AC adapter Insert the plug into the AC outlet 1 2 Move the shutter 3 4 When the AC adapter is connected to the tester power is supplied from the AC adapter When both the battery and the AC adapter are con nected to the tester the battery is not used If the battery pack is installed when the AC adapter is connected to the tester power of the tester is automati cally turned...

Page 45: ...ficiency Outside this range not only is the charging capacity reduced but also there is a possibility of reduced performance or electrolyte leakage The battery pack cannot be charged when test leads are connected to the tester The battery pack will be charged regardless of the battery selector switch position Communication with a PC and temperature measurement are available during charging But ins...

Page 46: ...g begins During rapid charg ing the battery status indicator blinks See 2 1 3 Connecting the AC Adapter page 39 Move the shutter 1 2 3 Battery status indicator Charging If the AD adapter is connected to the tester when the tester is off the tester is automatically turned on and rapid charging begins www com information itm com 1 800 561 8187 ...

Page 47: ...引 43 4 When rapid charging is completed the battery status indictor changes from blinking to continuously lit After rapid charging finishes the battery is trickle charged maintained in a fully charged state www com information itm com 1 800 561 8187 ...

Page 48: ...key The screen is switched off and power is turned off 2 2 Turning Power On and Off Turning power On Indicates the position of the battery selector switch bP Using the Model 9459 BATTERY PACK Lr6 Using the LR6 alkaline batteries Version When the battery status indicator is low replace the battery See 2 1 1 Installing or Replacing the Battery page 31 If the batteries or the battery pack is running ...

Page 49: ...surement APS will start blinking around 30 sec onds before power is turned off Auto power off is re enabled upon turning power on again APS lights up When the AC adapter is connected to the tester auto power off is disabled When the timer is set or when the tester is in the step voltage test mode auto power off is disabled Turn on power while holding down the key Canceling Auto Power Off www com i...

Page 50: ...se the Christian calendar 2 3 1 Setting Date and Time Procedure 1 When the tester is in a standby state press the key Year month and day appear 2 Hold down key for more than one second The Year starts blinking 2 3 Setting and Checking Date and Time www com information itm com 1 800 561 8187 ...

Page 51: ...rocedure below 4 Press to change the number Hold down for fast increase decrease 5 The entry is confirmed by pressing the key after which the display returns to the standby screen The clock starts to run from zero seconds as soon as key is pressed Year month day Hour minute second When year YEAR is blink ing press the key When day DAY is blinking press the key Hour minute second Year month day Whe...

Page 52: ... can be set on a PC using the data analysis software for model 3455 The data analysis software for model 3455 must be installed on the PC Details See 6 4 Communicating with PC page 134 Date and time can be set on a PC www com information itm com 1 800 561 8187 ...

Page 53: ...録索引 49 2 3 2 Checking Date and Time Procedure 1 When the tester is in the standby state press the key Year month and day appear 2 Press the key Hours minutes and seconds appear 3 Pressing key returns to the standby screen www com information itm com 1 800 561 8187 ...

Page 54: ...d electric shock be sure to dis connect the test leads from the object under test and turn off power before connecting or disconnecting the test leads to from the tester To avoid electric shock never use the tester if the shutter is broken Test leads cannot be connected to the tester if the AC adapter a temperature sensor or USB Cable is connected www com information itm com 1 800 561 8187 ...

Page 55: ...ad to the terminal For insulation resistance measurement connect the blue test lead to the GUARD terminal if necessary Check that the test leads are fully inserted GUARD terminal See 3 2 7 Use of GUARD Terminal page 71 terminal terminal GUARD terminal Test lead Red Test lead Black www com information itm com 1 800 561 8187 ...

Page 56: ...to matically 2 5 Connecting Temperature Sensor Temperature sensors may be damaged by high voltage or static electricity Do not expose the temperature sensor to excessive impact or allow the cable to be bent since malfunction or faulty connection may result Temperature sensors cannot be used simultaneously with test leads Move the shutter Temperature sensor terminal www com information itm com 1 80...

Page 57: ...ment 3 3 1 Pre Operation Inspection Before using the instrument make sure that the insulation on the test leads and cables is undamaged and that no bare conductors are improperly exposed Using the product in such conditions could cause an electric shock so contact your dealer or Hioki representative for replacements Make sure the terminals are clean and dry Wipe with a dry cloth to remove any mois...

Page 58: ...oltage of the tester to 5 00 kV See 3 2Measuring Insulation Resistance Proce dure 5 page 60 to 8 page 60 4 Hold down key for more than one second to start insulation resistance measurement 5 Check to see if the reading of the high volt age meter is somewhere between 5 kV and 5 5 kV 6 Check to see if the voltage reading of the tester is somewhere between 5 kV and 5 5 kV www com information itm com ...

Page 59: ...rcuit the tips of the clips of the red and black test leads of the tester 10 Press the key to see if the test volt age setting is 5 00 kV 11 Hold down the key for more than one second to start insulation resistance measurement 12 Check to see if the insulation resistance reading of the tester is 0 00 MΩ If a problem exists discontinue use of the tester Insulation resistance Voltage www com informa...

Page 60: ...cting test leads to it Table 1 Check item Result Action Are the mark and key lamp off Off Connect test leads to the tester and check C above If safe to proceed connect the test leads to the object under test Go to Table 2 Blinking Press the key to stop voltage generation Table 2 Check item Result Action Are the mark and key lamp blinking Not blinking Measurement may be com menced Blinking Immediat...

Page 61: ...asurement even if the key is not pressed for instance due to battery consumption In such case the automatic discharge function may not operate Discharge the object under test using a discharge rod for high volt age To avoid damage to objects under test be sure to check the test voltage before starting measurement When repeating measurement press the key before next measurement to check the test vo...

Page 62: ...ation Resistance 58 3 2 1 Starting Measurement Procedure 1 Connect the alligator clip to the end of each test lead Insert it fully 2 Move the shutter to reveal the and terminals www com information itm com 1 800 561 8187 ...

Page 63: ...ds See 3 2 7 Use of GUARD Terminal page 71 4 Clip the alligator clip at the end of each test lead to the object under test GUARD terminal Warning Confirm that the power supply to the object under test has been turned off Object to be measured Ex Motor terminal terminal Test lead Red Attach to a metal chassis or a ground terminal Test lead Black Attach to a metal part of the power supply terminal w...

Page 64: ...ressing keys you can make fine adjustment of the test voltage setting 8 Press the key to set the test voltage The voltage indication will change from blinking to continuous This test voltage is now set For step voltage testing hold down the key which will display STEP For non stepped insula tion resistance measurement press the key and choose a voltage www com information itm com 1 800 561 8187 ...

Page 65: ...ion changes from the test voltage to the actual output voltage A voltage approximately 5 higher than the set level is output To view the set voltage during measurement press the key The set voltage is displayed for approximately 2 seconds During measurement if the output voltage is lower than the set level the voltage indication blinks Under the resistance indication appears time elapsed from the ...

Page 66: ...place objects on test leads to avoid mea surement errors and malfunctions Be sure to clean test leads after use If test leads are soiled they may deteriorate Insulation resistance is unstable The indication may not stabilize with some objects Due to factors such as capacitance of objects under test resistance values may start low then rise gradually and settle out During measurement if the resista...

Page 67: ...ture is shown as An error massage is displayed If the indication is unstable the average of the measurement is shown Pressing the average key toggles AVE on off While AVE is on display update interval is four seconds normally But in the following case the interval is one second even if AVE is on During 15 seconds after the measure ment started During 5 to 10 seconds after the mea surement range ch...

Page 68: ...ld lights up 2 Immediately after measurement has been completed the discharge circuit in the tester automatically discharges the electric charge remaining in the object under test See 3 2 4 Automatic Discharge Function page 67 3 During discharge the mark and key lamp blinks The voltage indication shows the progress of discharge www com information itm com 1 800 561 8187 ...

Page 69: ...tage before resuming measurement If the key is pressed during measurement automatic discharge is performed before power is turned off If the battery runs low during measurement the tester automatically stops measurement Automatic discharge is performed and then LObAt appears on the screen Last Elapsed time of the Actual output voltage last measurement end of measurement measurement value Check www...

Page 70: ...indication To clear the data press the key for more than one second Temperature humidity data will not be cleared Checking Held Data Data indications to be switched Keys used key key Elapsed time Temperature humidity When the data are held key Insulation resistance Leakage current DAR 1 min 30 s PI 10 1 min DAR 1 min 15 s Test voltage setting Actual output voltage The held data are cleared when po...

Page 71: ...cuit after measurement Make sure that the test leads are connected to the measured object when pressing the key to stop measurement Discharging stops when the residual volt age falls below 10 V The discharge time varies depending on the capacitance After the voltage has been decreased by the tester s automatic discharge function the voltage in the measurement area may rise again due to the remaini...

Page 72: ...current PI resistance etc Every time key is pressed the indi cation changes in the order resistance current resistance current etc During measurement Blinking Elapsed time Actual output voltage The bar graph shows the resistance measurement blinks at below 1 nA Current measurement Before measuring insulation resistance and after setting test voltage indicator is off Measuring insulation resistance...

Page 73: ...ester measures the applied voltage V and the combined leakage current I and then calculates the insulation resistance R Calculation formula R V I IC and IA gradually decrease after the volt age is applied Holding data after measurement If the indication is unstable press the key The average of the measurements is shown 1 00 nA means below 1 00 nA Applied voltage V Insulation tester Capacity C Insu...

Page 74: ... as shown in the dia gram The electric charge level in CA differs at the start of previous measurement and at the start of next measurement and thus absorption current IA differs too Further the combined leakage current and insulation resistance vary from measurement to mea surement This will be become more appar ent for higher insulation resistance values To ensure reproducibility of measurement ...

Page 75: ...agram above wind a bare conductor around the surface of the insulat ing material and connect the conductor to the GUARD terminal This prevents the leakage current on the surface of the insu lating material flowing into the current detector which enables the actual resis tance of the entire volume of the insulating material to be measured Measurement unaffected by surface electrical resistance Meta...

Page 76: ...ic shielding layer Rs Insulation resistance of the sheath of the high voltage cable Between metallic shielding layer and ground Rn Insulation resistance between insulator or high voltage equipment and ground Influence of Rs and Rn is removed and solely Rc is measured Reference High voltage power receiving facility code 2002 Measurement using G GUARD terminal grounding Meter transformer Disconnecto...

Page 77: ...ltage to ground 1 000 Vrms CATIII 600 Vrms CATIV Do not conduct measurement exceeding these voltages to ground Maximum input voltage 750 Vrms 1 000 VDC Do not conduct measurement exceeding this maximum input voltage Maximum input frequency 70 Hz Do not conduct measurement exceed ing this maximum input frequency Do not short cir cuit a line voltage applied with the tip of test lead Do not use the t...

Page 78: ...ds Insert it fully 2 Move the shutter to reveal the and terminals 3 Connect the red test lead to the termi nal and the black test lead to the termi nal Fully insert the test leads terminal terminal GUARD terminal Test lead Red Test lead Black www com information itm com 1 800 561 8187 ...

Page 79: ...付録索引 75 4 Clip the ends of the test leads to the cir cuit to be tested When the voltage exceeds 50 V the mark and key lamp blink 5 Read the voltage indication The key is not used Measured voltage Blinking www com information itm com 1 800 561 8187 ...

Page 80: ...pt to measure the tempera ture of objects carrying a voltage Doing so will result in a short circuit accident or an electrocution accident Temperature sensors may be damaged by high voltage or static electricity Do not expose the temperature sensor to excessive impact or allow the cable to be bent since malfunction or faulty connection may result Move the shutter Temperature sensor terminal www co...

Page 81: ...ation 4 Press key or disconnect the tem perature sensor to stop measurement lights up and the last mea surement is held Detailing the above display See 6 3 2 Clearing Indications of Temperature and Humidity Stored Data page 133 After measuring temperature When the resistance is not measured www com information itm com 1 800 561 8187 ...

Page 82: ... held temperature instead of the elapsed time press the key The temperature will blink Held measurement values are cleared when power is turned off To save the data use the memory function See 5 1 1 Manual Recording Recording result of one mea surement session page 103 Settings cannot be edited during temperature measure ment To edit settings stop temperature measurement OF means exceeding 70 0 C ...

Page 83: ...er 1 minute time increments or decrements in minutes 4 1 1 Setting Timer Conducting Insulation Resistance Measurement Procedure 1 When the tester is in a standby state press the key The time indication will blink 2 Press the key to set the time Advanced Measurement 4 4 1 Using Timer What is it used for Used to set the tester to automati cally stop at a specified time www com information itm com 1 ...

Page 84: ...erates a test voltage and measurement begins At the bottom of the screen remaining time to completion of measurement is displayed 5 After the set time has elapsed the tester automatically stops measurement If the key is pressed the tester immediately stops measurement regard less of the remaining time Elapsed time at the completion of mea surement is displayed at the bottom of the screen When the ...

Page 85: ...ester is in a standby state press the key The time indication will blink 2 Press the key to select min s min s is also selected by pressing the key 3 Press the key to confirm the entry TIMER indicator is turned off Timer not used www com information itm com 1 800 561 8187 ...

Page 86: ...Procedure 1 When the tester is in a standby state press the key The currently set time blinks Check the time 2 Press the or key to return to the previous screen Checking set time www com information itm com 1 800 561 8187 ...

Page 87: ...1 Changing and Checking Interval Set ting for PI Calculation page 123 Procedure 4 2 Displaying PI and DAR What is it used for Used to check whether insulation re sistance increases with time after a voltage is applied When the PI value or the DAR val ue is close to 1 the tester deter mines that the insulation of the object under test is deteriorated PI 10 1min DAR 1min 15s DAR 1min 30s To determin...

Page 88: ... determine DAR continue measurement for one minute 2 Stop measurement 3 Press the key several times to display PI DAR 1 min 15 s or DAR 1 min 30 s Every time the key is pressed the indication on the LCD changes in the order of resistance current DAR 1 min 15s DAR 1 min 30s PI resis tance current etc www com information itm com 1 800 561 8187 ...

Page 89: ...r DAR cannot be displayed DAR PI Resistance Right 1st measurement Left 2nd measurement Right 1st Left 2nd 1st 1 min 2nd 10 min Measurement Resistance Right 1st 30 GΩ Left 2nd 60 GΩ Substitute into the formula PI 10 1min Resistance 10 min after voltage application divided by resistance 1 min after voltage application PI in the example above is 2 00 60 0 GΩ 30 0 GΩ Interval Measurement Interval www ...

Page 90: ... value as a reference Per form measurement again The table below shows special indications for PI and DAR Blinking resistance indication on PI or DAR display screen PI DAR Conditions One or more resistance val ues could not be acquired appears in the resis tance field One or more resistance val ues exceeded measure ment range OF appears in the resis tance field The 1st measurement was 0 00 MΩ 999 ...

Page 91: ... rection table The reference temperature may be set to an arbitrary level The selectable refer ence temperature ranges vary depending on the correction table used The convertible measurement tempera ture ranges also vary depending on the correction table used See Appendix 4 Temperature Correction Table page 171 4 3 Temperature Correction TC What is it used for Used to acquire insulation resis tanc...

Page 92: ...easuring Temperature page 76 The temperature may also be entered with keys See 6 3 Entering Temperature and Humidity Measured with External Thermometer and Hygrometer page 129 In the step voltage test mode STEP is on temperature correction is unavailable Exit the step voltage test mode See 4 4 3 Exiting Step Voltage Test Mode page 99 2 Press the key TABLE No blinks 3 Choose a table No from 0 to 9 ...

Page 93: ...firm the choice of table No The reference temperature blinks 5 Adjust the reference temperature using the key If the keys are held down simultaneously the reference tempera ture is returned to its default 40 C for table 9 and 20 C for the rest www com information itm com 1 800 561 8187 ...

Page 94: ...rature correction mode The LCD displays the resistance at the reference temperature converted from the measurement The bar graph shows the value before correc tion Bar graph Value before correction Digital value Value after correction Actual Measurement Temperature Reference Temperature www com information itm com 1 800 561 8187 ...

Page 95: ...ature correction mode when the temperature is not held is off measure or enter temperature before measuring resistance You cannot measure resistance first Resistance measured by the step voltage test cannot be converted using temperature correction In temperature correction mode leakage current may be displayed by pressing the key but it cannot be corrected for Indications to be switched Keys used...

Page 96: ... Temperature Correction TC 92 4 3 2 Exiting Temperature Correction Mode Procedure Press the key TC is turned off and the tester exits temperature correction mode www com information itm com 1 800 561 8187 ...

Page 97: ...ltage is increased in 5 steps at regular intervals during insulation resis tance measurement The resistance mea surement and the current measurement are acquired once at the end of every step The test voltage is applied in one of the two orders below STEP2 50 kV 500 V 1 kV 1 5 kV 2 kV 2 5 kV STEP5 00 kV 1 kV 2 kV 3 kV 4 kV 5 kV The voltage is increased when one minute has passed at each voltage st...

Page 98: ... a Step Voltage Test Procedure 1 Press the key in standby state and the voltage indication will blink 2 Press the key to choose STEP2 50 kVSET or STEP5 00 kVSET The voltage value will advance rapidly if the key is held down Choosing 5 00 kVSET with the key and then pressing the key is a short cut to select STEP STEP5 00 kV 1 kV 2 kV 3 kV 4 kV 5 kV 1 min 2 min 3 min 4 min 5 min Measurement 1 Measur...

Page 99: ...oltage test mode 4 To start the step voltage test hold down the key for more than one second The mark and the key start blinking and insulation resistance or leakage current appears on the screen Press the key to toggle between them Lighting Interval for 1 step Actual output Elapsed time Step No voltage www com information itm com 1 800 561 8187 ...

Page 100: ...e TC is on temperature correction mode STEP cannot be selected Press the key to turn off the TC indicator To view the set voltage during measure ment press the key The set voltage is displayed for approximately 2 seconds After the test pressing the key switches between the last output voltage and the test voltage When the tester is in the step voltage test mode auto power off is disabled www com i...

Page 101: ...ter is in standby state after step voltage test press the key will blink and the LCD displays the details of the step voltage test data The first page shows the data at the test voltage for step 1 Actual output voltage at step 1 Blinking Resistance at step 1 Elapsed time at end of step 1 Shows step No www com information itm com 1 800 561 8187 ...

Page 102: ...een the indica tor changes from blinking to continu ously lit and the LCD returns to the standby screen Indications to be switched Keys used Voltages and data at 5 steps key Insulation resistance leakage current key Temperature and humidity are measured imme diately before or after the test key Elapsed time to the step currently displayed Temperature Humidity www com information itm com 1 800 561 ...

Page 103: ...te and the voltage indication will blink 2 To turn off the STEP indicator press the key several times 3 Press the key The voltage indication changes from blinking to constantly lit The tester exits the step voltage test mode and returns to normal measure ment mode for insulation resistance www com information itm com 1 800 561 8187 ...

Page 104: ...r The entire record is viewable on a PC using the PC software See 6 4 Communicating with PC page 134 Add data No to data to record The data No serves as the address in the memory The table shows the data No numbering system Recording Measurement Data Memory Function 5 Manual recording Stores held data Logging recording Stores insulation resistance data at regular intervals Recording method Data No...

Page 105: ...ime temperature humidity test voltage setting actual output voltage resis tance last Reference temperature Resistance after correction and table No Step voltage test data Data when STEP is on Data No year month day hour minute second at the end of test Step time temperature humidity test voltage setting actual output voltage x 5 Resistance x 5 Logging recording year month day hour minute second at...

Page 106: ... into 10 groups 10 records per group thus up to 100 records can be stored There are three types of data standard measurement data temperature correc tion data and step voltage test data These three data sets are stored sepa rately 5 1 Recording Measurement Data A0 A9 b0 b9 C0 C9 d0 d9 E0 E9 F0 F9 H0 H9 J0 J9 n0 n9 P0 P9 Operation Flow Start measurement Stop measurement Set data No Store with the k...

Page 107: ...available data numbers appears Temperature only or temperature and humidity may be stored as a manual record The tester however has to be in the standard measurement mode both STEP and TC off They cannot be recorded in the step voltage test mode STEP on or in the temperature correction mode TC on Change voltage setting 3 2 1 Procedure 5 to 8 page 60 Exit temperature correction mode 4 3 2 Exiting T...

Page 108: ...ata No data is already recorded under the number In manual recording data can be overwritten If is not pressed and the key is pressed the LCD returns to the previous screen without recording data If step voltage test is stopped at any time data cannot be recorded If corrected resistance is indicated as E11 in the temperature correction mode data cannot be recorded About E11 8 3 Error Display page ...

Page 109: ...maxi mum recording time vary depending on set recording interval The timer is off When the timer is set the tester automat ically stops measurement after the set time has elapsed Selectable time 30 sec to 30 min or OFF When setting to more than 1 minute the time increments or decre ments by 1 minute Recording interval Maximum number of loggings Maximum recording time 15 sec 360 times 90 min 30 sec...

Page 110: ...asurement LobAt appears and the tester records the measurement data to that point When a low resistance is measured more power is consumed thus the tester may not be able to measure data equal to the maximum number of loggings We recommend the 9459 BATTERY PACK optional when performing logging recording since this pack has a larger capacity www com information itm com 1 800 561 8187 ...

Page 111: ...et Recording interval See Setting Recording Interval page 111 Set timer See Setting Timer page 111 Start measurement See Measuring page 112 Stop measurement See Measuring page 112 Store in memory with the key See Recording the Data in Memory page 114 www com information itm com 1 800 561 8187 ...

Page 112: ...hen per form the operation below Procedure 1 Press the key in standby state MEMO No lights up and the available No next to the last stored No blinks Exiting Setup Screen or Logging Recording Mode Setting Data No Logging recording is not available in the step voltage test mode the voltage setting is STEP or in the temperature correction mode TC is on Change the voltage setting 3 2 1 Procedure 5 8 p...

Page 113: ...essed the data number of another group appears Example n0 P0 Lr0 A0 b0 3 Press the key Data No Lr changes to continuously lit and time blinks If is indicated for a data No data is already recorded under that number In logging recording data cannot be overwritten Delete the existing data first and then record new data www com information itm com 1 800 561 8187 ...

Page 114: ...ing interval 5 Press the key 6 The time changes from blinking to con tinuous and the tester enters the logging recording mode 7 Set the timer Selectable time 30 sec to 30 min or OFF Press the key The TIMER indicator time and TIMER blink Setting Recording Interval Setting Timer www com information itm com 1 800 561 8187 ...

Page 115: ...standby state in which logging recording is available Procedure 10 Start insulation resistance measurement See 3 2 Measuring Insulation Resistance page 56 to 72 The first data is acquired when the first recording interval has elapsed after measurement has started The time displayed is the recording interval Measuring www com information itm com 1 800 561 8187 ...

Page 116: ...s may be omitted Temperature and humidity measured with external thermometer and hygrometer may be entered by key operation See 3 4 Measuring Temperature page 76 See 6 3 Entering Temperature and Humidity Measured with External Thermometer and Hygrometer page 129 If measurement is stopped before the first recording interval elapses no logging records are acquired and MEMO No and the data No are tur...

Page 117: ...ess the key after which MEMO No will blink then extinguish The logging data has been stored in the memory Recording the Data in Memory Temperature voltage and leakage current are not stored as logging records www com information itm com 1 800 561 8187 ...

Page 118: ...cedure 1 Press the key in standby state MEMO No must be off READ No lights up and data No and data blink 2 Press the key to choose the No of the data you wish to view The data stored under the number appears Press the key to display the data number of another group Example A0 b0 C0 The recording method of the displayed record is identified as follows 5 2 Checking Recorded Data Data No is not Lr Ma...

Page 119: ...n data When STEP is on Step voltage test data Standard Measurement Data Indications to be switched Keys used key Elapsed time Temperature humidity key Date of measurement Measurement time Data key Return to the standby screen key Test voltage setting Actual output voltage Ex 5 00 kVSET 5 25 kV Automatic switching Insulation resistance Leakage current DAR 1 min 30 s PI 10 1 min DAR 1 min 15 s Manua...

Page 120: ...ge Ex 5 00 kVSET 5 25 kV Automatic switching key The leakage current and the bar graph displayed as temperature correction data are those before correction Step Voltage Test Data Insulation resistance after correction Leakage current no correction Elapsed time Actual measurement temperature Reference temperature Resistance before correction Resistance after correction Actual measurement temperatur...

Page 121: ...irst step Press the keys shown in the table below to switch the indication Indications to be switched Keys used Elapsed time Temperature Humidity key Date of measurement Measurement time Data key Go to the detailed data screen key Return to the standby screen key Test voltage setting Actual output voltage Ex 5 00 kVSET 5 25 kV Automatic switching Indications to be switched Keys used Switch to data...

Page 122: ...t voltage Ex 5 00 kVSET 5 25 kV Automatic switching As leakage current data is not stored in the memory it is calculated again from the voltage and the resistance to display The recalculated data may vary from the leakage current before recording by 1 When the resistance is 0 00 MΩ appears Indications to be switched Keys used www com information itm com 1 800 561 8187 ...

Page 123: ...in standby state 2 Press the key to display the num ber of the data to delete 3 Press the key CLr appears 4 After pressing the key CLr blinks and the data is deleted 5 3 Deleting Recorded Data If the key is pressed without the key being pressed the LCD returns to the previous screen without deleting the data www com information itm com 1 800 561 8187 ...

Page 124: ...records simultaneously Procedure 1 Press the key in a standby state 2 Press the key twice ALL CLr appears 3 Press the key and ALL CLr blinks and all the data are deleted If the key is pressed without the key being pressed the LCD returns to the previous screen without deleting the data www com information itm com 1 800 561 8187 ...

Page 125: ...ls Selectable range 1 min to 30 min Default t1 1 min t2 10 min 6 1 1 Changing Interval Setting Procedure 1 Press the key several times while in standby state to display PI 2 Press the key The first interval blinks t1 lights up 3 Set the timer using the key Other Functions 6 6 1 Changing and Checking Inter val Setting for PI Calculation www com information itm com 1 800 561 8187 ...

Page 126: ...ftware for 3455 The data analysis software for 3455 must be installed on the PC Details See 6 4 Communicating with PC page 134 When the intervals are not at their defaults 10 1 min is off on the PI display screen If insulation resistance is measured in this state the tester displays PI calculated from resistance measure ments at the set intervals After the interval setting has been changed PI of t...

Page 127: ...re 1 Press the key several times while in standby state to display PI 2 Press the key The setting of the first interval t1 will blink Check the setting 3 Press the key The setting of the second interval t2 will blink Check the setting 4 Press the or key The LCD returns to the PI display screen www com information itm com 1 800 561 8187 ...

Page 128: ... not the total application time for 5 steps 6 2 1 Changing Time Setting Procedure 1 Press the key while in standby state and the voltage indication will blink 2 Press the key to choose STEP2 50 kVSET or STEP5 00 kVSET If the key is held down the voltage value changes rapidly Choosing 5 00 kVSET with the key and then pressing the key is a shortcut to select STEP 6 2 Changing and Checking Voltage Ap...

Page 129: ...127 3 Press the key The voltage indication changes from blinking to continuously lit and the tester enters the step voltage test mode 4 Press the key STEP and the time will blink 5 Set the time using the key STEP is lighting Interval for 1 step STEP is blinking www com information itm com 1 800 561 8187 ...

Page 130: ... for 3455 The data analysis software for 3455 must be installed on the PC Details See 6 4 Communicating with PC page 134 6 2 2 Checking Time Setting Procedure 1 Press the key while in standby state and the voltage indication will blink 2 Choose a step voltage test mode STEP2 50 kVSET or STEP5 00 kVSET and press the key The time for one step appears The time can also be set up on a PC Interval for ...

Page 131: ... temperature and humidity record them using the memory function Details of memory function Details of memory function See 5 Recording Measurement Data Memory Function page 101 Input range Temperature 10 0 to 70 0 C Humidity 0 0 to 99 9 RH 6 3 Entering Temperature and Humidity Measured with External Thermometer and Hygrometer Operation Flow Enter temperature humidity See Entering Temperature and Hu...

Page 132: ...ress the key in standby state The temperature will blink 2 Enter temperature using the keys keys Move the cursor keys Raise and lower 3 Press the key The humidity will blink When TC is on the tester returns to the standby state without indicating humidity Entering Temperature and Humidity www com information itm com 1 800 561 8187 ...

Page 133: ... humidity is held when the temperature sensor is connected the humidity is not displayed When resistance and current values are still in memory or when the tester is in the step voltage test mode the temperature and humidity indications are turned off after being entered and the time lights up If the key is pressed when the temperature and humidity indications are blinking the tester returns to th...

Page 134: ...ure 6 Press the key 7 Press the keys to choose a data No 8 Press the key MEMO No will blink and the data is recorded Saving Temperature and Humidity Data When only temperature and humidity are stored in the memory they are recorded as standard measurement data Resistance voltage and other data are recorded as www com information itm com 1 800 561 8187 ...

Page 135: ...e sensor is connected to the tester disconnect the sensor 2 Press the key while in the standby state The temperature will blink 3 Press the key The temperature is indicated as C 4 Press the key The humidity indicator will blink 5 Press the key The humidity is indicated as RH 6 Press the key This procedure only clears the indications on the screen and does not delete the temperature and humidity da...

Page 136: ...he tester on a PC Saves the data CSV format Copies and pastes the graph Date and time PI Interval Voltage application time for step voltage test 6 4 Communicating with PC What is it used for Used to make a table or graph of the data stored in the memory or create a report Recommended System Requirements OS WindowsXP Windows2000 PC running Internet Explorer 5 0 or higher CPU Pentium III 500 MHz or ...

Page 137: ...e 1 Insert the CD R into the CD ROM drive 2 Run the X English Data_Analysis_ Software_for_3455Eng exe or the X Chinese Data_Analysis_Software for_3455Chn exe X represents the letter of the CD ROM drive and may differ from computer to computer 3 Install the software by following the on screen instructions Refer to the user s manual which is included in the English and Chinese folder of the CD R www...

Page 138: ...essary to install the driver Procedure 1 Turn on power of the 3455 tester 2 Using the supplied USB cable connect the tester to the PC Connection of USB Cable 6 4 3 page 145 Windows XP When another 3455 unit is connected to the PC the dialog in procedure 8 page 139 may appear after procedure 4 page 137 If this happens skip to procedure 8 and follow the rest of the procedure www com information itm ...

Page 139: ...nd New Hardware will appear on the screen If the wizard that asks about the connec tion to Windows update is appeared check No and Click the Next button Some versions of Windows XP may not show this dialog in which case the dia log in procedure 4 is shown 4 Choose Install from a list or specific location and click Next www com information itm com 1 800 561 8187 ...

Page 140: ... in these locations and Include this location in the search Leave all other boxes blank Enter C WINDOWS system32 in the Copy manufacturer s files from box and click Next 6 Click Continue and Windows starts copying the files www com information itm com 1 800 561 8187 ...

Page 141: ...nicating with PC 1 2 3 4 5 6 7 8 9 10 11 付録索引 139 7 Click Finish Installation of the driver is complete 8 Choose the location c windows inf hiusbsgl inf and click Next www com information itm com 1 800 561 8187 ...

Page 142: ...6 4 Communicating with PC 140 9 Click Continue 10 Enter C WINDOWS system32 in the Copy files from box and click OK www com information itm com 1 800 561 8187 ...

Page 143: ...141 11 Click Finish Installation of the driver is complete Procedure 1 Turn on power of the 3455 tester 2 Using the supplied USB cable connect the tester to the PC Connection of USB Cable 6 4 3 page 145 Windows2000 www com information itm com 1 800 561 8187 ...

Page 144: ...h PC 142 3 Windows 2000 displays Found New Hardware message and then Found New Hardware Wizard dialog Click Next 4 Choose Search for a suitable driver for my device and click Next www com information itm com 1 800 561 8187 ...

Page 145: ... 7 8 9 10 11 付録索引 143 5 Choose Specify a location and click Next Leave all other boxes blank 6 Enter C WINNT system32 in the Copy manufacturer s files from box and click OK CD R is not necessary www com information itm com 1 800 561 8187 ...

Page 146: ...6 4 Communicating with PC 144 7 Click Next 8 Click Finish Installation of the driver is complete www com information itm com 1 800 561 8187 ...

Page 147: ... USB Cable to the USB ter minal 3 Click the Start button and choose Programs HIOKI 3455 Data Analysis Soft For 3455 exe Operation See the help function or the user s manual of the data analysis software for 3455 Use a 2 m or shorter USB cable to avoid noise Do not connect to the tester if test leads are still connected Move the shutter USB terminal www com information itm com 1 800 561 8187 ...

Page 148: ...mission to avoid transmission errors About the Data Analysis Software for 3455 User s Manual The user s manual is stored in the English and Chinese folders on the supplied CD R To view the user s manual Adobe Reader must be installed on your computer If it is not installed run the program AdbeRdr70_enu_full exe in the English folder on the supplied CD R or AdbeRdr70_chs_full exe in the Chinese fol...

Page 149: ...iod of guaranteed accuracy 1 year Operating environment Indoors Up to 2000 m 6562ft ASL Measuring method DC voltage application insulation resis tance and mean value rectification volt age A D conversion Double integral Display LCD with backlight displaying up to a count of 999 Overflow indication OF Underflow indication OF Display update rate Insulation resistance leakage current Once sec 0 25 ti...

Page 150: ...cy 50 60 Hz Output rating 12 VDC 3 33 A Maximum rated power 15 VA when AC adapter is used 6 VA when battery or battery pack is used Life of back up battery Approx 10 years reference data at 23 C Continuous working hours Alkaline battery Approx 5 hours 9459 BATTERY PACK Approx 9 hours Conditions Generating 5 kV Open between terminals backlight off and reference data at 23 C Maximum input voltage 75...

Page 151: ... 1 9751 01 ALLIGATOR CLIP Red 1 9751 02 ALLIGATOR CLIP Black 1 9751 03 ALLIGATOR CLIP Blue for GUARD 1 Instruction Manual 1 LR6 alkaline battery 6 USB Cable 1 CD R Data Analysis Software for 3455 1 Options 9631 01 TEMPERATURE SENSOR Thermistor Molded type Approx 1 m 9631 05 TEMPERATURE SENSOR Thermistor Molded type Approx 6 cm 9750 11 TEST LEAD Red Approx 10 m 9750 12 TEST LEAD Black Approx 10 m 9...

Page 152: ...ulation resistance leak age current measurement Clock function Displays year month day hours min utes and seconds auto calendar auto matic leap year correction 24 hour clock and lithium battery backup clock accuracy 100 ppm Averaging function Averages insulation resistance current leakage measurements Data storage function Stores the last data upon completion of measurement Items stored Insulation...

Page 153: ...ctions LCD backlight function Auto power off function Buzzer function Communications function Battery pack charge function Charges the 9459 BATTERY PACK using the 9753 AC ADAPTER Rapid charging time Approx 3 hours at 23 C System reset www com information itm com 1 800 561 8187 ...

Page 154: ...n the result of division of test voltage setting by rated measuring current Short circuit current 2 mA or less Output voltage monitor function Display range 0 V to 999 V 0 98 kV to 5 50 kV Monitored value accuracy 5 rdg 5dgt Actual output voltage is within the tolerance of the output voltage accuracy given above Measuring range Resistance obtained by dividing the value of the range from 0 00 MΩ to...

Page 155: ...kV 0 00 MΩ 2 50 TΩ 5 kV 0 00 MΩ 5 00 TΩ Resistance Ranges When a value below the lower limit of each range is dis played the accuracy is not guaranteed Resistance range name Measuring range 10 MΩ range 0 00 MΩ 9 99 MΩ 100 MΩ range 9 0 MΩ 99 9 MΩ 1000 MΩ range 90 MΩ 999 MΩ 10 GΩ range 0 90 GΩ 9 99 GΩ 100 GΩ range 9 0 GΩ 99 9 GΩ 1000 GΩ range 90 GΩ 999 GΩ 5 TΩ range 0 90 TΩ 5 00 TΩ www com informati...

Page 156: ...e setting by 100 nA 5 rdg 5dgt Greater than the resistance obtained by dividing the test voltage setting by 100 nA and up to 500 GΩ 20 rdg 5dgt 501 GΩ to 5 00 TΩ 30 rdg 50dgt 500 GΩ 5 00 TΩ 50 0 GΩ 5 00 GΩ 0 00 MΩ 250 V 500 V 1 kV 2 5 kV 5 kV 1 00 GΩ 2 50 GΩ 10 0 GΩ 100 GΩ 1 00 TΩ 250 GΩ 25 0 GΩ 2 50 TΩ 試験電圧設定値絶縁抵抗 5 rdg 5dgt 20 rdg 5dgt 100 MΩ 10 0 MΩ 30 rdg 50dgt 1 00 MΩ Insulation resistan...

Page 157: ...e is not guaranteed when the ambient temperature is between 28 C and 40 C Response time Within 15 sec This is the period of time after measurement has started until the displayed value falls within the specified accuracy range when averaging is not used Current Ranges and Measurement Accuracy When a value below the lower limit of each range is displayed the accuracy is not guaranteed Current range...

Page 158: ...sponse time Within 15 sec This is the period of time after measurement has started until the displayed value falls within the specified accuracy range when averaging is not used Measuring range 50 VDC to 1 00kVDC 50 VAC to 750 VAC Frequency DC 50Hz 60Hz Measurement accuracy 5 rdg 5dgt The accuracy is guaran teed at 50 V or more as an absolute value For DC the accuracy is not guar anteed at 1 01 kV...

Page 159: ... 40 0 C Measuring range Measurement accuracy 10 0 C to 0 1 C 1 5 C 0 0 C to 40 0 C 1 0 C 40 1 C to 70 0 C 1 5 C Temperature characteristics Measurement accuracy 0 5 is added to the measurement accuracy when the ambient temperature is not 23 5 C Response time Approx 100 sec Including the period of time for the response of the 9631 01 9631 05 TEMPERATURE SENSORs Reference value Period of time until ...

Page 160: ...Hioki can not be responsible for damage that occurs during shipment The instrument contains a built in backup lithium battery which offers a service life of about ten years If the date and time deviate substantially when the instrument is switched on it is the time to replace that battery Contact your dealer or Hioki representative The life of the battery pack is 500 charging cycles or approximate...

Page 161: ...ery pack 2 1 4 P 41 Is the battery selector switch in the correct position Check the position of the battery selec tor switch 2 1 1 P 31 2 1 2 P 34 Battery pack is not charged Is the power plug of the AC adapter inserted fully Is the power plug of the AC adapter inserted fully 2 1 3 P 39 Is the battery pack installed Install the bat tery pack 2 1 2 P 34 Resistance measurement value is incorrect Is...

Page 162: ... correction mode Have you mea sured tempera ture first Measure tem perature before resis tance 4 3 P 87 The tester cannot communicate with the PC Is the USB cable connec tor inserted fully Insert the USB cable connec tor fully 6 4 P 134 Power fails upon measuring insulation resistance Is the battery power low Replace with new battery 2 1 1 P 31 Is the battery pack charged Charge the battery pack 2...

Page 163: ...ft dry cloth 8 3 Error Display Error display Details Action rEC Err Data stored in the memory is corrupted or missing Delete the data rEC Full Memory data are stored under all the data numbers and there is no vacant No Delete or replace data n0 AdJ Internal memory error has occurred This requires repair LObAt AA batteries or battery pack is low Replace the batteries or charge the battery pack Err0...

Page 164: ... error has occurred Err05 Temperature measurement error has occurred Err06 The discharge circuit is faulty Err10 Details A high residual voltage is generated in an object under insulation resistance testing High residual voltages generated in an object placed under high test voltage condi tions results in charge being stored and then released under a subsequent test involving lower test voltages A...

Page 165: ...perature cor rection exceeds the convertible range Action Perform temperature correction within the temperature ranges specified in the tables in Appendix 4 Temperature Correction Table page 171 Error display Details Action www com information itm com 1 800 561 8187 ...

Page 166: ...eset is complete The table below shows the default settings 8 4 Performing System Reset Setting Items Settings Resistance current Resistance Test voltage 250 V Timer OFF PI interval t1 1 min t2 10 min Temperature correction OFF Table No displayed first when temperature correction is selected 0 Reference temperature for temperature correction 20 C for table No 0 to 8 40 C for table No 9 Step voltag...

Page 167: ... and remove the AA batteries and battery pack See 2 1 1 Installing or Replacing the Battery page 31 and 2 1 2 Installing the Battery Pack Rechargeable nickel hydrogen battery page 34 2 Remove the four set screws on the rear of the tester and remove the lower casing 8 5 Discarding the Instrument To avoid electric shock or malfunction of the tester do not attempt to use the tester again by installin...

Page 168: ...t 1 2 3 4 5 6 7 8 9 10 11 付録索引 167 3 Remove the screw and pin holding the tow printed circuit boards and remove them The PCB nearest the LCD should not be removed Remove Lithium Battery www com information itm com 1 800 561 8187 ...

Page 169: ...The battery is located on the remaining PCB as shown in the illustration above Insert tweezers or other similar pointed tool between the battery and the battery holder Raise the battery to remove www com information itm com 1 800 561 8187 ...

Page 170: ...0M 2000 3000 4000 0 1M 10M 1G 2M 0 2500V 5M 20M 1000 5000 6000 10G 1T 100M 100G 5000V 800 1000 400 200 1G 10G 1200 出力電圧 V 出力電圧 V 測定抵抗 Ω 0 0 Measurement resistance Ω 2000 3000 4000 10M 1G 2M 0 2000V 5M 20M 1000 5000 6000 10G 1T 100M 100G 5000V 出力電圧 V 2500V 3000V 4000V 0 1M 測定抵抗 Ω Output voltage V Measurement resistance Ω Output voltage V www com information itm com 1 800 561 8187 ...

Page 171: ... for insulation resistance testing of a motor Appendix 2 Example of Insulation Resistance Criteria Part of cable Measurement voltage V Insulation resistance MΩ Judgment Insulator 5 000 5 000 or more Non defective 500 to below 5 000 Needs attention below 500 Defective Sheath 500 or 250 1 or more Non defective Appendix 3 Example of PI Criteria Polarization Index Heat resistance class Recommended low...

Page 172: ...96 Power installation pre ventive maintenance code Chinese Appendix 4 Temperature Correction Table Object under test Oil impregnated power transformer Selectable reference temperature range 10 to 70 C default 20 C Convertible range of actual temperature used for measurement 10 0 to 70 0 C Correction formula Rtref Resistance after correction for reference temperature of tref C Rt Resistance measure...

Page 173: ... to 75 C default 20 C Convertible range of actual temperature used for measurement 5 0 to 70 0 C Correction formula Converted to a resistance value at the reference temperature using the formula below and result dis played Rtref Resistance after correction for reference temperature of tref C Rt Resistance measured at the temperature of t C tref Reference temperature C t Actual temperature used for...

Page 174: ...emperature range 5 to 100 C default 20 C Convertible range of actual temperature used for measurement 5 0 to 70 0 C Correction formula Converted to a resistance value at the reference temperature using the formula below and result dis played Rtref Resistance after correction for reference temperature of tref C Rt Resistance measured at the temperature of t C tref Reference temperature C t Actual t...

Page 175: ...lectable ranges are as shown above Correction formula Converted to a resistance value at the reference temperature using the formula below and result displayed Use the coefficients shown in the Temperature Conversion Coeffi cient for Power Cables page 175 Atref Coefficient at the reference temperature of tref C At Coefficient at the actual measurement temperature of t C Rtref Resistance after corr...

Page 176: ... 1 0 16 0 048 0 25 0 40 0 28 0 35 2 0 18 0 054 0 26 0 42 0 29 0 38 3 0 20 0 070 0 27 0 44 0 31 0 40 4 0 22 0 077 0 28 0 46 0 33 0 42 5 0 24 0 091 0 29 0 48 0 36 0 44 6 0 26 0 109 0 31 0 51 0 39 0 46 7 0 30 0 124 0 33 0 54 0 42 0 49 8 0 33 0 151 0 36 0 57 0 45 0 52 9 0 37 0 183 0 37 0 60 0 48 0 54 10 0 41 0 211 0 38 0 63 0 51 0 58 11 0 44 0 249 0 41 0 67 0 54 0 61 12 0 49 0 292 0 48 0 71 0 58 0 64 ...

Page 177: ...09 4 27 4 10 1 90 2 86 1 89 31 2 25 4 92 4 45 2 03 3 18 2 00 32 2 42 5 60 5 20 2 17 3 53 2 15 33 2 60 6 45 5 80 2 32 3 91 2 32 34 2 79 7 42 7 60 2 47 4 33 2 50 35 2 95 8 45 8 28 2 65 4 79 2 69 36 3 12 9 70 8 50 2 85 5 29 2 90 37 3 37 9 66 3 10 5 83 3 13 38 3 58 11 60 3 35 6 44 3 38 39 4 06 14 50 3 63 7 18 3 65 40 4 53 16 00 3 95 8 23 3 94 Temperature Conversion Coefficient for Power Cables Coeffic...

Page 178: ... Default 40 C Convertible range of actual temperature used for measurement 20 to 60 C Correction formula Converted to a resistance value at the reference temperature using the formula below and result dis played Rtref Resistance after correction for reference temperature of tref C Rt Resistance measured at the temperature of t C tref Reference temperature C t Actual temperature used for measuremen...

Page 179: ...1 2 3 4 5 6 7 8 9 10 11 付録索引 www com information itm com 1 800 561 8187 ...

Page 180: ...www com information itm com 1 800 561 8187 ...

Page 181: ... find any points which are unclear or in error please contact your supplier or the International Sales and Mar keting Department at HIOKI headquarters In the interests of product development the contents of this manual are subject to revision without prior notice Unauthorized reproduction or copying of this manual is prohibited www com information itm com 1 800 561 8187 ...

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