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Chapter 2

Measurement Procedure

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Fresh battery

Battery capacity 50%

Battery capacity 0
Beep tone sounds 3 times

Chapter 2

Measurement

Procedure

2.1 Preparations

1. Remove the back case and insert a battery. (Refer to

"Chapter 4 Battery Replacement".)

2. Press

POWER

to turn the instrument on. Verify that

all segments of the display light up briefly. The
model name then appears on Display 1 and battery
state on Display 3.

3. The measuring state of the 1

P meter or 1

meter is activated. (The instrument was shipped
from the factory with the 1

P meter selected. For

details, see 2.9, "SETUP Function.")

[Low battery voltage detection function]

After the

mark lights and battery voltage drops

below a certain level, the power goes off
automatically. When this occurs, "

" is

displayed.
When power goes off after display of these marks,
replace the exhausted battery with a new one.

Содержание 3286-20

Страница 1: ...EN 3286 20 CLAMP ON POWER HiTESTER Instruction Manual Apr 2015 Revised edition 13 3286B981 13 15 04H...

Страница 2: ...rements Mode 9 1 4 2 Harmonic Measurement 11 1 4 3 Change the Range 11 Chapter 2 Measurement Procedure 13 2 1 Preparations 13 2 2 Connections 14 2 3 Range Setup 20 2 4 Power Measurement 21 2 4 1 1 P M...

Страница 3: ...40 3 1 3 Specifications of Single phase Power Measurement 1 P Meter 41 3 1 4 Specifications of Power Factor and Phase Angle Measurements 1 PF Meter and 3 PF Meter 42 3 1 5 Specifications of Balanced T...

Страница 4: ...eeps measurement function of the multiple functions If you set up a function mode in advance the mode will start up from the next use Have it set up for the preferable use Refer to 2 10 Measurement Co...

Страница 5: ...ories panel switches key and connectors If damage is evident or if it fails to operate according to the specifications contact your dealer or HIOKI representative Check the 3286 20 Unit and the Suppli...

Страница 6: ...ing directly from instrument defects DANGER Indicates that incorrect operation presents an extreme hazard that could result in serious injury or death to the user WARNING Indicates that incorrect oper...

Страница 7: ...nected to or disconnected from a live circuit Safety Symbols This manual contains information and warnings essential for safe operation of the instrument and for maintaining it in safe operating condi...

Страница 8: ...vironments categorized as CAT II to CAT IV and called measurement categories These are defined as follows CAT II Primary electrical circuits in equipment connected to an AC electrical outlet by a powe...

Страница 9: ...mbered category than that for which the instrument is rated could result in a severe accident and must be carefully avoided Use of a measurement instrument that is not CAT rated in CAT II to CAT IV me...

Страница 10: ...ally to ensure that the no damage occurred during storage or shipping If you find any damage contact your dealer or Hioki representative Before using the instrument make sure that the insulation on th...

Страница 11: ...hould never be made to the primary side of a breaker because unrestricted current flow could cause a serious accident if a short circuit occurs Connect the voltage cords to the instrument first and th...

Страница 12: ...attery first disconnect the voltage cord or clamp from the object to be measured After replacing the battery replace the cover and screws before using the instrument When replacing the battery be sure...

Страница 13: ...t the white or red portion insulation layer inside the cable is not exposed If a color inside the cable is exposed do not use the cable Do not exceed the maximum input current rating which depends on...

Страница 14: ...o avoid damage to the instrument protect it from physical shock when transporting and handling Be especially careful to avoid physical shock from dropping Do not exert excessive pressure on the clamp...

Страница 15: ...p fitting is firmly connected If the metal fitting is loose adjust it and recheck the connection To avoid corrosion from battery leakage remove the batteries from the instrument if it is to be stored...

Страница 16: ...286 20 CLAMP ON AC DC HiTESTER Chapter 4 Battery Replacement Explains how to replace the battery used to power the 3286 20 Chapter 5 Attaching the Hand Strap Explains how to attach the hand strap for...

Страница 17: ...xiv Organization of This Manual...

Страница 18: ...signed to provide multiple functions by adopting a single chip microcomputer At any desired point of a single phase circuit or three phase circuit this instrument enables the measurement of voltage cu...

Страница 19: ...ccurate measurement of currents with distorted waveforms Enables power measurement When both current and voltage are input simultaneously the power factor phase angle reactive factor as well as power...

Страница 20: ...3 Chapter 1 Product Outline Top and Side View 1 2 3 4 5 6 9 8 13 14 10 11 15 16 12 7 17 1 3 Parts and Functions...

Страница 21: ...tage ranges and enables the setting of these ranges The U and I keys are used to set these ranges 4 HOLD key Holds the indicated value Used for the measurement condition save function Holding down the...

Страница 22: ...y of effective value and peak value during REC Enables the setting of a current range in range setup mode Raises the order in harmonic display mode 8 MAX MIN SET2 key Switches the REC function on and...

Страница 23: ...facing the load side 13 Data Output terminal Connected to the optional 9636 RS 232C CABLE to provide output 14 Voltage measurement terminal Connected to the L9635 01 VOLTAGE CORD red and black suppli...

Страница 24: ...t AC cos Power factor sin Reactive factor HOLD Data hold function DATA Data output RST Three Phase Reverse phase Normal phase Missing phase APS Auto power off function S Slow REC Record function LEAD...

Страница 25: ...var reactive power Total harmonic distortion ratio F A distortion rate against the basic wave Total harmonic distortion ratio R A distortion rate toward the actual effective value The Data Output fun...

Страница 26: ...P vAr Q S U I S vAr Q I key I Ipeak IHz Return to the power indication with the Watt key U key U Upeak UHz MAX MIN key REC ON REC OFF A point of view This shows the way of changing on Display 1 to 3...

Страница 27: ...y I key U key P MAX MIN S MAX MIN I MAX MIN Ipeak MAX MIN U MAX MIN Upeak MAX MIN Return to the power indication with the Watt key MAX MIN display Elapsed time display Remaining battery capacity displ...

Страница 28: ...THD F Content 1st order 2nd order 20th order 20th order 19th order 1st order Measurement value indication RANGE key RANGE indication I key U key RANGE indication AUTOrange 150 V range 300 V range 600...

Страница 29: ...12 Chapter 1 Product Outline...

Страница 30: ...ight up briefly The model name then appears on Display 1 and battery state on Display 3 3 The measuring state of the 1 P meter or 1 PF meter is activated The instrument was shipped from the factory wi...

Страница 31: ...s to prevent the clip from accidentally touching anyone NOTE 2 2 Connections To initialize the saved contents Holding down the RANGE key when powering on initializes all the saved contents SETUP Funct...

Страница 32: ...15 Chapter 2 Measurement Procedure Red Yellow Black Load Power supply side Figure 1 Power Measurement on Single Phase Two Wire Circuit Single Phase Two Wire Circuit...

Страница 33: ...uit Single Phase Three Wire Circuit The power and power factor of a single phase three wire circuit are measured similar to measurement on a single phase two wire circuit Connect the black cord to the...

Страница 34: ...hase Three Wire Circuit 1 2 3 1 P P1 1 P P2 Power supply side Load Red Yellow Black Red Black Yellow Three phase effective power P P1 P2 Figure 4 Another method of the power measurement on Three Phase...

Страница 35: ...e load is balanced No neutral wire is used for this measurement however In case of unbalanced load measurement is conducted similar to measurement on a single phase two wire circuit Set the instrument...

Страница 36: ...k Load Power supply side Figure 7 Voltage measurement Current measurement When only measuring current the orientation of the clamp sensor is irrelevant Moreover the voltage cord need not be connected...

Страница 37: ...0 k 6 000 k 12 00 k 200 0 A 30 00 k 60 00 k 120 0 k 1000 A 150 0 k 300 0 k 600 0 k Unit W or VA or var 2 3 Range Setup 1 Press the RANGE key The voltage range then appears on Display 2 and current ran...

Страница 38: ...ter changing the range press the RANGE key Display 2 and Display 3 then restore the measured values Correct measurement may be impossible in the presence of strong magnetic fields such as near transfo...

Страница 39: ...point of voltage U and current I as shown below The meter calculates three phase active power P three phase apparent power S three phase reactive power Q and reactive factor SIN and power factor COS...

Страница 40: ...f the voltage waveform and current waveform of that sine wave Therefore phase angle measurement serves as the basis for the 1 PF meter Distorted waveforms and those with noise superimposed may prevent...

Страница 41: ...oad Red Yellow Black Red Black Yellow Three phase effective power P P1 P2 Measurement example P 1 P S 1 P R 0 54 kW 2 61 kVA T 1 98 kW 2 57 kVA Three phase effective power P P1 P2 0 54 1 98 1 44 kW Th...

Страница 42: ...OK OK Reactive factor SIN OK OK WARNING Due to the risk of electric shock connect the yellow cord not used for measurement to the part to which the black cord connects to prevent the clip from acciden...

Страница 43: ...erse phase Missing phase 3 Open the tip of the clamp core and clamp the conductor on the side to which the red voltage cord is connected roughly into the center of the clamp core then conduct measurem...

Страница 44: ...not display any measured value will be displayed If the arrow mark on the surface of the clamp sensor points to the power supply side from the load side the phase will be shifted by 180 degrees thus...

Страница 45: ...ors are respectively clamped at the same time When only measuring current there is no need to connect the voltage cord Select the 1 P meter 1 PF meter or 3 PF meter The instrument does not display pol...

Страница 46: ...rs on Display 1 peak hold value on Display 2 and frequency on Display 3 2 Connect the voltage cord to the instrument then connect the red cord yellow cord and black cord to the circuit under measureme...

Страница 47: ...indicated value will stabilize when 50 Hz or 60 Hz fixed is selected For how to select see the setup of measurement line frequency in SETUP mode For details see 2 9 SETUP Function There is a possibili...

Страница 48: ...two or three conductors are respectively clamped at the same time Automatic frequency detection AUTO 50 Hz fixed or 60 Hz fixed can be selected In cases where the input fluctuates significantly the i...

Страница 49: ...eys to select the order of harmonics to be measured 5 Switch between the total harmonic distortion ratio THD R THD F and harmonic percentage as needed by pressing the MODE key Automatic frequency dete...

Страница 50: ...ult to read you can select a slower display update rate about once every three seconds to make it easier to read the indicated value Set SLOW display by setting DISP in SETUP mode See 2 9 SETUP Functi...

Страница 51: ...pacity In elapsed time display the instrument indicates hours on Display 2 and minutes on Display 3 When elapsed time is displayed with MAX or MIN blinking a negative value is denoted 4 The HOLD key w...

Страница 52: ...on the instrument by pressing the POWER key This activates SETUP mode 2 Select a setting item The MODE key increments the item No the MAX MIN key decrements the item No 3 The settings can be modified...

Страница 53: ...play update to normal rate 1 s NORMAL SLOW Sets display update to SLOW 3 s SLOW 4 Setup of auto power off function Item No 1 04 ON Enables the auto power off function OFF Disables the auto power off f...

Страница 54: ...off automatically Immediately before turning off automatically APS annunciator blinks and a beep tone is heard for about 30 seconds By pressing any key except POWER you will extend the powered state...

Страница 55: ...38 Chapter 2 Measurement Procedure...

Страница 56: ...on from sensor center External magnetic field interference 400 A m AC external magnetic fields corresponds to 1 00 A or less display Maximum rated voltage to earth max 600 V rms Range Accuracy Range R...

Страница 57: ...V 10 0 V rms to 150 0 V rms 0 1 V 1 0 rdg 3dgt 1 5 rdg 5dgt 300 0 V 80 0 V rms to 300 0 V rms 0 1 V 1 0 rdg 3dgt 1 5 rdg 5dgt 600 V 80 V rms to 600 V rms 1 V 1 0 rdg 3dgt 1 5 rdg 5dgt Range Accuracy R...

Страница 58: ...ltage Current Range 20 00 A 200 0 A 1000 A Voltage Range 150 0 V 3 000 kW 30 00 kW 150 0 kW 300 0 V 6 000 kW 60 00 kW 300 0 kW 600 V 12 00 kW 120 0 kW 600 0 kW Measurement accuracy 2 3 rdg 5dgt cos 1...

Страница 59: ...measurement Method of measurement Measurement range Obtained by calculation from phase angles Measurement Mode Resolution Measurement Range Accuracy cos 0 001 LEAD 0 to 1 to LAG 0 3 2dgt Calculating...

Страница 60: ...tage line voltage Range 150 0 V 6 000 kW 60 00 kW 300 0 kW 300 0 V 6 000 kW 12 00 kW 60 00 kW 120 0 kW 600 0 kW 600 V 24 00 kW 240 0 kW 600 0 kW 1200 kW For apparent power W is replaced by VA Measurem...

Страница 61: ...0 60 Hz Measurement function AC current AC voltage Harmonic analysis Window width Type of window Number of analysis data Order of analysis 1 cycle 50 60 Hz Rectangular 256 points 1st order to 20th ord...

Страница 62: ...ng system Digital sampling system Phase detection system Single phase Power Measurement Power Factor Phase Angle Measurement Waveform Digital sampling Phase Phase detection Three phase Power Measureme...

Страница 63: ...goes on during which time accuracy cannot be guaranteed Battery low voltage power off bAtt Lo 7 segments used Power turned off after display Display update rate Digital counter NORMAL 1s 50 ms approx...

Страница 64: ...rature and humidity range 0 to 40 32 to 104 80 RH or less no condensation Temperature characteristics Current and voltage measurement In 0 to 40 range 0 1 x accuracy specifications Phase detection cir...

Страница 65: ...48 Chapter 3 Specifications Accessories 9245 CARRYING CASE 1 L9635 01 VOLTAGE CORD 1 Hand Strap 1 Battery 1 Instruction manual 1...

Страница 66: ...value I Arms Voltage measurement Voltage Effective value U Vrms Single phase power measurement 1 P meter 1 active power P W 1 apparent power S VA 1 reactive power Q var 1 power factor Single phase po...

Страница 67: ...wave 50 60 Hz 3 power factor 3 For line current IR lags URS cos 30 For line current IR leads URS cos 30 3 reactive factor For line current IR lags URS sin 30 For line current IR leads URS sin 30 3 ac...

Страница 68: ...ol Operation Expression Harmonic current Effective value Ik Arms k th harmonic content Overall harmonic distortion factor THD F THD R Harmonic voltage Effective value Uk Vrms k th harmonic content Ove...

Страница 69: ...52 Chapter 3 Specifications...

Страница 70: ...the battery be sure to insert them with the correct polarity Otherwise poor performance or damage from battery leakage could result Replace battery only with the specified type To avoid the possibili...

Страница 71: ...connected If the metal fitting is loose adjust it and recheck the connection To avoid corrosion from battery leakage remove the batteries from the instrument if it is to be stored for a long time 1 R...

Страница 72: ...55 Chapter 5 Attaching The Hand Strap Chapter 5 Attaching The Hand Strap Explains how to attach the hand strap for easy handling of the instrument in the field...

Страница 73: ...56 Chapter 5 Attaching The Hand Strap...

Страница 74: ...57 Chapter 6 Storage in Carrying Case Chapter 6 Storage in Carrying Case Store all instruments in the carrying case then secure it with the band...

Страница 75: ...58 Chapter 6 Storage in Carrying Case...

Страница 76: ...est service Replace battery Check connection of battery to clip Check voltage cord for broken wire Check the voltage cord to make sure the root of the clip is connected to the banana plug firmly NOTE...

Страница 77: ...han the estimated value 1 P meter 1 PF meter 3 PF meter Confirm the direction of the clamp sensor and Connections of the voltage cord Check that the clamp sensor is firmly closed Check that the batter...

Страница 78: ...for replacement parts is five years after end of production If damage is suspected check the Troubleshooting section before contacting your dealer or HIOKI representative For information regarding ser...

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