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9.10 Device Compliance Documents

180

8. The summary of the program data elements

used in the <expressions> and the deepest
nesting level allowable in the sub-expressions
(including syntax restrictions imposed by the
device)

Sub-expressions are not used. Character data and decimal
data are the only program data elements used.

9. Response syntax for queries

See:

"9.7 Message Reference" (p. 134)

10.Transmission congestion relating to device-to-

device messages which do not conform to the
general principles for basic response mes-
sages

There are no device to device messages.

11.Response capacity for block data

Block data does not appear in responses.

12.Summary of shared commands and queries

used

See:

"9.6 Message List" (p. 128)

13.Device state after a calibration query has been

completed without any problem

The

∗

CAL?

command is not used.

14.Existence/nonexistence of "

∗

DDT" command

The

∗

DDT

command is not used.

15.Existence/nonexistence of macro command

Macros are not used.

16.For queries related to identification, an expla-

nation of the response to the "

∗

IDN?" query

See:

"Shared Commands" (p. 135)

17.The capacity of the protected user data stor-

age area when the "

∗

PUD" command and the

∗

PUD?" query are executed

The

∗

PUD

command and

∗

PUD?

query are not used. Fur-

ther, there is no user data storage area.

18.Explanation of resources when the "

∗

RDT"

command and the "

∗

RDT?" query are used

The

∗

RDT

command and

∗

RDT?

query are not used. Fur-

ther, there is no user data storage area.

19.Explanation of conditions which are affected

when "

∗

RST", "

∗

LRN?", "

∗

RCL?", and "

∗

SAV"

are used

∗

LRN?

∗

RCL?

and

∗

SAV

are not used. The

∗

RST

com-

mand returns the unit to its initial state.

See:

"Shared Commands" (p. 135) "Initialization Items" (p.
126)

20.Explanation of the self-testing scope executed

as a result of the "

∗

TST?" query

See:

" Shared Commands";"

∗

TST?" (p. 135)

21.Explanation of additional organization of the

status data used in a device status report

See:

"Event Registers" (p. 123)

22.Explanation whether commands are overlap-

ping commands or sequential type commands

All the commands are sequential commands.

23.Description of criterion relating to the functions

required when termination message is pro-
duced, as a response to each command

Termination occurs when the command has been parsed.
The

:READ?

query finishes when the measurement data is

received.

Item

Description

Содержание RM3542-50

Страница 1: ......

Страница 2: ......

Страница 3: ...to Upper Lower Thresholds ABS Mode 39 3 8 Confirming Faulty Measurements 40 Chapter 4 Customizing Mea surement Settings 43 4 1 Making Range Specific Measurement Settings 43 4 2 Setting Pre Measurement...

Страница 4: ...Signal Descriptions 97 8 2 Timing Chart 99 8 3 Internal Circuitry 102 Electrical Specifications 103 Connection Examples 104 8 4 Ext I O Settings 105 Setting the End of Measurement Signal Output EOM Si...

Страница 5: ...ons 197 11 4 Disposing of the Instrument 199 Removing the Lithium Battery 199 Appendix A 1 Appendix 1 Four Terminal Voltage Drop Method A 1 Appendix 2 Effect of Thermal emf A 2 Appendix 3 Unstable Mea...

Страница 6: ...Table of Contents iv...

Страница 7: ...act Check Function p 50 Detecting Measurement Voltage Faults Voltage Level Monitor Func tion p 55 Test for Short Circuited Probe Probe Short Circuit Detection Function p 57 Comparing the Measurement S...

Страница 8: ...nt values to the computer Available only with RS 232C interface Auto Exporting Measurement Values at End of Measurement Data Output Function p 87 To check operation Setting Measurement Start Condition...

Страница 9: ...configuration p 17 Confirm the initial setup p 76 Basic Settings p 27 Configure settings for your specific conditions p 43 System related settings p 67 When changing settings Change basic settings su...

Страница 10: ...flon is a registered trademark of E I du Pont de Nemours and Company Inspection Content confirmation Introduction Verifying Package Contents When you receive the instrument inspect it carefully to ens...

Страница 11: ...5 mm This fixture is for measuring lead components Measurable sample dimension Lead diameter 0 3 mm to 2 mm Lead pitch 5 mm or more less than 20 m residual resistance after zero adjustment This fixtur...

Страница 12: ...nual before use Marks on This Instrument Indicates cautions and hazards When the symbol is printed on the instrument refer to a correspond ing topic in the Instruction Manual Indicates AC Alternating...

Страница 13: ...ually the name of the currently selected range rdg reading or displayed value The value currently being measured and indicated on the measuring instrument dgt resolution The smallest displayable unit...

Страница 14: ...llowing locations Exposed to direct sunlight or high temperature Exposed to corrosive or combustible gases Exposed to a strong electromagnetic field or electrostatic charge Near induction heating syst...

Страница 15: ...ut to power the instrument Doing so may damage the instrument Before Connecting EXT I O Connector To avoid electric shock or damage to the equipment always observe the following precautions when conne...

Страница 16: ...is present In particular do not mea sure a transformer or motor immediately after a temperature increase test or withstand voltage test as the instrument could be damaged by induced voltage or residua...

Страница 17: ...measurement value and calculation results to the printer Use a commercially available print er with a serial interface to print the measurement values and calcula tion results p 89 Save and Output the...

Страница 18: ...measurement values and sta tistical calculation results p 89 The GP IB interface can also be used for Model RM3542 51 specified when shipping p 109 Low Power Function p 28 For ranges from 1000 m to 1...

Страница 19: ...e reliability of the measurement value Minimize Human Error and Risk Settings Monitor Function p 59 If the settings are found to be different after comparing the setting conditions of two instruments...

Страница 20: ...d with sufficient time for integration the default setting is 0 3 ms to achieve stable measure ments The integration time can be reduced to 0 1 ms to support higher speeds B Before measuring the Conta...

Страница 21: ...f Entering numerical values Enter a numerical value these are called the numeric keys Switches the sign of a numeri cal value Selects the unit of measure Sets the tolerance values Deletes the value in...

Страница 22: ...puter p 109 GP IB Communications SET MONITOR Connector Connect another instrument to compare the set tings of two units p 59 See Before Connecting to the RS 232C Con nector or SET MONITOR Connector p...

Страница 23: ...lack on white for the best visibility on the printed page However the instrument screens can actually be displayed only with white characters on a black background 1 3 Screen Organization Detailed Set...

Страница 24: ...rrent setting contents Displayed contents depend on the current settings INT EXT Trigger source type p 31 Measurement ranges p 32 FAST MED SLOW Measurement Speed p 29 0ADJ OFF no display Appears only...

Страница 25: ...73 BACKLIGHT Adjust screen backlight p 74 RESET Initializing p 75 ADJUST Instrument Adjustment p A13 System screens SYSTEM Shows detailed settings for measurements Use when adjusting the measurement s...

Страница 26: ...1 3 Screen Organization 20...

Страница 27: ...nnecting Measurement Probes p 23 Turning Power On p 25 5 Connect to the test sample After measurements are completed turn the power off p 25 Connect the external interface as needed 4 Using the printe...

Страница 28: ...he instrument make sure that the insulation on the power cord is undamaged and that no bare conductors are exposed Any damage can cause elec tric shock contact your dealer or Hioki representative To a...

Страница 29: ...fix tures Use the GUARD jack only for the High Resistance Measurements shield and avoid more than a 10 mA current flow This jack is not for guarding the network resistance measurements Example of def...

Страница 30: ...block diagram p 14 for the internal circuit details Probes and measuring objects should be shielded at BNC or GUARD jack potential Measurement probe length keep it within 2 m with a conductor resista...

Страница 31: ...in red power OFF Disconnect the power cord from the power inlet to extinguish the POWER button light When the power is turned on again operation resumes with the same settings as when last turned off...

Страница 32: ...2 3 Turning the Power On and Off 26...

Страница 33: ...entative Peripheral Device Inspection Is the insulation on a measurement probe torn or is any metal exposed Metal Exposed If there is any damage measurement values may be unstable and measure ment err...

Страница 34: ...0012 100 W Low Power Resistance Measurement 100 Range Measurement range 0 0000 m 100 m range to 120 0000 M 16 ranges Normal Resistance Measurement General purpose resistors Measurement range 0 000 m 1...

Страница 35: ...results in greater susceptibility to environmental noise Ensure that measurement probes and the sample are sufficiently shielded 3 3 Setting the Measurement Speed 1 Open the Basic Settings screen 2 Se...

Страница 36: ...3 ms 12 ms 42 ms 35 ms 3 1 6 ms 6 0 ms 41 ms 34 ms 2 3 ms 12 ms 42 ms 35 ms 10 1 6 ms 6 0 ms 41 ms 34 ms 2 3 ms 12 ms 42 ms 35 ms 100 0 9 ms 3 6 ms 21 ms 17 ms 1 7 ms 6 1 ms 41 ms 34 ms 300 0 9 ms 3 6...

Страница 37: ...rs that require time to settle adjust delay time DELAY2 Start with a long delay and gradually shorten it while watching for the measurement value to settle See 4 2 Setting Pre Measurement Delay p 44 W...

Страница 38: ...REF and upper limit ABS ranges Selected range Reference value REF and upper limit ABS ranges Selected range Reference value REF and upper limit ABS ranges Selected range 0 00 m to 100 09 m 100 m 0 00...

Страница 39: ...low power resistance measurement is set to OFF 100 m 1000 m 3 10 100 300 1000 10 k 30 k 100 k 300 k 1000 k 3 M 10 M 30 M 100 M default When low power resistance measurement is set to ON 1000 m 3 10 10...

Страница 40: ...a large offset voltage such as due to thermal emf LOW POWER OFF in 100 to 100 M range Execute zero adjustment when the ambient temperature has changed or when a probe is replaced Execute zero adjustm...

Страница 41: ...f zero adjustment fails the following error message appears Before attempting zero adjustment again confirm the following When measuring with the 10 range confirm that the displayed value does not exc...

Страница 42: ...to their previous values To accept the settings press the ENTER key When setting comparator criteria the appropriate range is selected automatically Refer to Auto Range when making comparator settings...

Страница 43: ...the comparator function 3 Return to the Measurement screen The Basic Settings screen appears 1 Selection 2 Disables the function Enables the function Press the up down cursor keys to change the settin...

Страница 44: ...use the cursor keys to select the item to change then enter the new value with the numer 1_ 10_ 10 _ 10 5_ 10 50 Example 10 5 2 Selection To Reset Numerical Values Deletes entered digits This key is...

Страница 45: ...shold 4 Accept the settings and return to the Measurement screen Upper threshold Lower threshold 1_ 15_ 150_ 150 0 m Example 150 Selection To Reset Numerical Values Deletes entered digits This key is...

Страница 46: ...probes may be degraded due to wear C E Volt may also be displayed when external noise is strong Voltage Monitor fault See Out of Range Detection Function p 41 See 4 5 Checking for Poor or Improper Con...

Страница 47: ...nector Probe short circuit ERR 021 PRB_SHORT output ERR output Yes Hi Wiring Contact Error C E Hi ERR output CE_HI output Yes Lo Wiring Contact Error C E Lo ERR output CE_LO output Yes Voltage Level...

Страница 48: ...3 8 Confirming Faulty Measurements 42...

Страница 49: ...range except for the DELAY1 setting Customizing Measurement Settings Chapter 4 set as needed 4 1 Making Range Specific Measurement Settings 1 Open the Basic Settings screen 2 Open the Measurement Set...

Страница 50: ...ffects measurements in all ranges Set DELAY1 Adjust this setting to allow for probe contact mechanical stabilization Set DELAY2 to the time needed for stabilization after measure ment current is appli...

Страница 51: ...easurement Settings Screen 3 Set DELAY1 or DELAY2 4 Return to the Measurement screen The Basic Settings screen appears The Measurement Settings Screen appears MEAS SETTINGS 1 Selection 2 Selection1 2...

Страница 52: ...compensation RS Resistance value after compensation A Compensation coefficient setting range 0 50000 to 2 00000 default 1 00000 B Offset resistance setting range 0 0000 m to 99 9999 M default 0 0000 m...

Страница 53: ...the Measurement screen Selection 1 2 Setting range 0 50000 to 2 00000 default 1 00000 Numeric keys 3 Selection 1 2 Setting range 0 0000 m to 99 9999 M default 0 0000 m Numeric keys 3 Returns to the se...

Страница 54: ...egration time OVC Integration time OVC FAST MED SLOW FAST MED SLOW 100 m 0 5 ms 5 0 ms 1 PLC ON 2 1000 m 0 3 ms 2 5 ms 1 PLC ON 2 0 5 ms 5 0 ms 1 PLC ON 2 3 0 3 ms 2 5 ms 1 PLC ON 2 0 5 ms 5 0 ms 1 PL...

Страница 55: ...low resistance and low power resistance measurements that are easily affected by power line noise we suggest setting according to the power line period PLC units 3 Select the integration setting unit...

Страница 56: ...s of a known good measurement probe the instrument requires repair During low resistance measurement poor contact of the HCUR or LCUR probe may be detected as an out of range measurement When contact...

Страница 57: ...Improper Contact Contact Check Function 51 4 5 Return to the Measurement screen Returns to the setting screen Saves and return to previous screen Discards setting and return to previ ous screen The co...

Страница 58: ...le to change in characteristics It takes several microseconds for the DUT current to reach the steady state value Until the steady state value is reached a transient current that is approximately equa...

Страница 59: ...voltage limit function or low power resistance measurement function is enabled Setting Timing chart Contact Improver Function Internal delay is different for each range Measurement Start TRIG Contact...

Страница 60: ...reen Selection 2 Disables probe contact improvement go to step 4 Enables probe contact improvement Contacts improvement current is ap plied immediately before measuring on ly 1 The setting is specific...

Страница 61: ...l Monitor Function 1 Open the Basic Settings screen 2 Open the Measurement Settings Screen 3 Enable or disable the function 4 Select the voltage level monitor threshold 5 Return to the Measurement scr...

Страница 62: ...plying Current Only When Measuring Current Mode Setting 1 Open the Basic Settings screen 2 Open the Measurement Settings Screen 3 Select whether to apply current when not measuring To apply measuremen...

Страница 63: ...be performed after the end of measurement p 95 About Probe Short Circuit Detection If probes are connected to the measuring object during probe short circuit detection it is determined as probe short...

Страница 64: ...B_CHECK signal is executed 1 Open the Basic Settings screen 2 Open the System screen 3 Enable or disable the function 4 Set the probe short circuit detection timing 5 Return to the Measurement screen...

Страница 65: ...roader than that of the first stage measurement still starts despite the different threshold settings 4 10 Comparing the Measurement Settings of Two Instruments Settings Monitor Func tion Automatic Co...

Страница 66: ...1st stage Selects this instrument as the 2nd stage Returns to the setting screen Saves and return to previous screen Discards setting and return to previ ous screen The confirmation screen appears 1s...

Страница 67: ...the reference value to match the 1st stage The error message appears when the settings do not match 2nd Stage 1st Stage 2nd Stage 1st Stage 2nd Stage SET MONITOR ON 1st 0 300 on the SET MONITOR ON 2n...

Страница 68: ...mum time to end of measurement occurs when recovering from a measure ment fault immediately before the retry interval expires which approaches the sum of the retry interval setting plus normal measure...

Страница 69: ...t a continuous retry interval 5 Return to the Measurement screen Selection 1 2 Setting range 1 to 50 ms default 2 ms 3 Returns to the setting screen Saves and return to previous screen Discards settin...

Страница 70: ...Voltage Limiter Function 1 Open the Basic Settings screen 2 Open the System screen 3 Enable or disable the function 4 Return to the Measurement screen The instrument will display OvrRng over range whe...

Страница 71: ...parator or measurement speed settings During self calibration measurement current and the Contact Improver current are inhibited This function automatically compensates for offset voltage resulting fr...

Страница 72: ...4 14 Compensating for Thermal EMF Offset Offset Voltage Compensation OVC 66...

Страница 73: ...operations F LOCK is displayed when returning to the FULL measurement screen Disabling All Key Operations Including Comparator Key operations to change settings are disabled although key lock can be...

Страница 74: ...68 Key lock can be canceled only when UNLOCK is displayed If key operations are disabled by the KEY_LOCK signal de assert High the signal to unlock the keys Re Enabling Key Operations Key Lock Cancel...

Страница 75: ...pen the Basic Settings screen 2 Open the System screen 3 Select whether to enable or disable the key beeper 4 Return to the Measurement screen The Basic Settings screen appears The System screen appea...

Страница 76: ...lect the judgment beep conditions 5 Return to the Measurement screen The Basic Settings screen appears The System screen appears SYSTEM 1 Selection 2 Selection 1 2 Disables the beeper default go to st...

Страница 77: ...tic detection is not available when the line frequency changes after turning power on or resetting If the actual line frequency deviates from 50 or 60 Hz it is set to one of the closest frequencies Ex...

Страница 78: ...ion results 5 4 Setting the Clock 1 Open the Basic Settings screen 2 Open the System screen 3 Set the date and time 4 Return to the Measurement screen The Basic Settings screen appears The System scre...

Страница 79: ...Basic Settings screen 2 Open the System screen 3 Adjust the contrast 4 Return to the Measurement screen The Basic Settings screen appears The System screen appears SYSTEM 1 Selection 2 Selection 1 2 0...

Страница 80: ...e when brightness is set too low near 0 5 6 Adjusting the Backlight 1 Open the Basic Settings screen 2 Open the System screen 3 Adjust the backlight 4 Return to the Measurement screen The Basic Settin...

Страница 81: ...ommunication and clock settings to their factory defaults RST command non backup p 135 SYSTem RESet command p 151 This procedure describes system reset from the System screen 5 7 Initializing Reset 1...

Страница 82: ...0 ms all ranges 0 ms Probe delay setting p 44 DELAY2 0 to 100 ms 0 ms DUT response setting p 44 SCALING OFF ON Coefficient A Offset B OFF A 1 B 0 Scaling function p 46 INT FAST 0 1 ms to 100 ms 1PLC t...

Страница 83: ...105 INTERFACE GP IB RS232C PRINT RS232C 9600bps GP IB ADR01 LF Interface setting p 113 PRINT MODE NORMAL SAMPLE 1 to 100 ALL IN 1 L 3 L NORMAL 100 ALL 3 L Set printing method p 91 LOW POWER OFF ON OF...

Страница 84: ...5 7 Initializing Reset 78...

Страница 85: ...er while switching reels Measurement values are automatically stored as they become stable When the specified number of data points up to 99 is acquired the beeper sounds and auto storing halts Auto M...

Страница 86: ...control commands to export stored data Data Memory Function Operating Procedure Moreover stored data is automatically erased at the following timings 6 1 Storing Data at Specified Timing Data Memory...

Страница 87: ...itor function is forcibly turned off the setting itself is not set to OFF but the function is disabled The trigger source setting is forcibly turned to internal TRG INT When the trigger source is set...

Страница 88: ...n to previous screen Discards setting and return to previ ous screen The confirmation screen appears When the function is enabled 1 Open the Auto Memory Settings screen 2 Enter the number of values to...

Страница 89: ...en circuit the probes 2 Connect the probes to the measuring object When the measurement is stable the value is automatically stored and the count is incremented When the count reaches the specified nu...

Страница 90: ...e Minimum Xmin MIN x1 xn Mean Population standard deviation Standard deviation of sample Process capability index variation Process capability index bias n x x 1 6 n Lo Hi Cp 1 6 2 n x Lo Hi Lo Hi CpK...

Страница 91: ...nt screen is pressed with internal triggering and Auto Memory disabled Appears only when the interface is set for the printer When an EXT I O PRINT signal is applied on the Measurement screen with int...

Страница 92: ...Printing and Erasing Statistical Calculation Results 1 Display the Calculation Results screen 2 To print To print select the printer as the interface setting on the System screen p 91 To erase Calcul...

Страница 93: ...mand exports duplicate measurement values Even when using other queries ensure that the query response and auto exporting of measured values do not overlap The data format for measurement values can b...

Страница 94: ...6 4 Auto Exporting Measurement Values at End of Measurement Data Output Function 88...

Страница 95: ...inter to the instrument Setting the Instrument p 91 Make printer settings 7 1 Connecting the Printer Because electric shock and instrument damage hazards are present always follow the steps below when...

Страница 96: ...n the instrument and printer 4 Turn the instrument and printer on 2 3 Printer Example AC adapter RS 232C Cable 25 14 Printer s 25 pin connector Example RM3542A 9 pin Connector Pin No Signal name Circu...

Страница 97: ...f samples 6 Select the printing conditions The Basic Settings screen appears The System screen appears SYSTEM 1 Selection 2 Selection 2 1 Using the printer 1 2 Normal printing method default go to ste...

Страница 98: ...8 Return to the Measurement screen 1 2 Prints one data set per line default Prints three data sets per line Selection Returns to the setting screen Saves setting and return to previous screen Discards...

Страница 99: ...riggering is selected only measurement values are printed Use the TRIG signal to perform statistical calculations with external triggering Statistical calculation results can be printed when auto memo...

Страница 100: ...12 894 Ohm 1 289 Hi 6 1000 897 Ohm 0 090 IN 7 998 902 Ohm 0 110 IN 8 994 888 Ohm 0 511 IN 9 1000 391 Ohm 0 039 IN 10 979 892 Ohm 2 011 Lo Hi 1 IN 8 Lo 1 OR 0 Number 10 Valid 10 Max 1012 894 Ohm 1 289...

Страница 101: ...rs and Signals To avoid electric shock or damage to the equipment always observe the following precautions when connecting to the EXT I O connector Always turn off the power to the instrument and to a...

Страница 102: ...al trigger Pos Neg Edge 20 Reserved 2 Reserved 21 CAL IN Execute self calibration Neg Edge 3 KEY_LOCK IN Key Lock Neg Level 22 Reserved 4 Reserved 23 Reserved 5 Reserved 24 PRB_CHECK IN Probe short ci...

Страница 103: ...ement p 65 HOLD While holding the HOLD signal at a low level set the trigger source to external triggering EXT When the HOLD signal is high returns to the settings made on the Settings screen or by co...

Страница 104: ...or the print signal and error messages except for the Setting Monitor errors EXT I O input and output signals are not usable while changing the measurement settings EOM This signal indicates the end o...

Страница 105: ...l Calculation Results screen except for the PRINT signal and error messages except for the Setting Monitor errors The INDEX signal OFF timing is the same as that of the EOM signal OFF timing The outpu...

Страница 106: ...riptions Item Description Duration Remarks t0 Trigger Pulse Asserted ON Time 0 1 ms or more Falling ON rising OFF edge selectable t1 Trigger Pulse De as serted OFF Time 0 1 ms or more t2 Delay 1 0 to...

Страница 107: ...lay Range Internal Delay LOW POWER OFF LOW POWER ON 100 m 1 4 ms 1000 m 0 7 ms 0 6 ms 3 0 5 ms 0 6 ms 10 0 6 ms 0 6 ms 100 0 6 ms 0 5 ms 300 0 6 ms 1 3 ms 1000 0 6 ms 3 3 ms 10 k 0 5 ms 30 k 0 6 ms 10...

Страница 108: ...12 V Internally Isolated 5 V Internally Isolated 12 V Zener Voltage 30 V PLC etc Controller Input Common Pins 8 and 37 should not be connected to any external power supply This instrument This instrum...

Страница 109: ...open collector outputs current sink active low negative logic Maximum load voltage 30 V Maximum output current 50 mA ch Residual voltage 1 V 10 mA 1 5 V 50 mA Built in Isolated Power Supply 5 V power...

Страница 110: ...Input Output Common Output Input Common PLC Output Source Output Connections PLC Output Sink Output Connections Output Relay Connections Output Active Low Logic Output Active Low Logic Output Output I...

Страница 111: ...ystem screen 3 Select the EOM signal output type 4 When PULSE is selected Set the pulse width 5 Return to the Measurement screen The Basic Settings screen appears The System screen appears SYSTEM 1 Se...

Страница 112: ...ic edge 4 Return to the Measurement screen The Basic Settings screen appears The System screen appears SYSTEM 1 Selection 2 Selection 1 2 Starts the measurement with the rising signal OFF edge Starts...

Страница 113: ...etion of EOM the signal is asserted ON for the specified pulse width and then turned OFF therefore the EOM signal can be detected by the PLC even if the time to de assert is too short What situations...

Страница 114: ...Screws 4 40UNC 16 9 mm overall length A Cover Identical halves Shielded Cables recommended C Screw 4 40UNC 12 6 mm overall length D Screw 4 40UNC 15 0 mm overall length B Screw 4 40UNC 16 9 mm overall...

Страница 115: ...mes full a query error is generated and the output queue is cleared Therefore clear ing the output queue and query error output 3from the deadlocked condition as defined in IEEE 488 2 is not supported...

Страница 116: ...uipment configuration Recommended cables Model 9637 RS 232C Cable for PC Model 9638 RS 232C Cable for the 25 pin D sub connector Operating Code ASCII codes GP IB Specifications Interface Functions RM3...

Страница 117: ...1 DCD CF CD Carrier Detect Not used 2 Receive Data BB RD GND 3 Transmit Data BA SD RxD 4 DTR CD ER Data Terminal Ready Active ON level is 5 to 9 V constant 5 Signal or Common Ground AB SG Signal Grou...

Страница 118: ...o Pin No DCD 1 1 DCD Receive Data 2 2 Receive Data Transmit Data 3 3 Transmit Data DTR 4 4 DTR Signal or Common Ground 5 5 Signal or Common Ground DSR 6 6 DSR Request to Send 7 7 Request to Send Clear...

Страница 119: ...em screen 3 Select the interface type 4 Select the interface transfer rate 5 Return to the Measurement screen The Basic Settings screen appears The System screen appears SYSTEM 1 Selection 2 Selection...

Страница 120: ...nt s address 5 Select the interface message terminator 6 Return to the Measurement screen The Basic Settings screen appears The System screen appears SYSTEM 1 Selection 2 Selection 2 GP IB Interface 1...

Страница 121: ...the first byte which includes the sign bit Responses to queries that return a single value such as FETCh the floating point binary data of mea surement values are transmitted as 4 bytes The delimiter...

Страница 122: ...lockout state GP IB command LLO Local Lock Out p 126 selecting the LOCAL display on the screen is disabled In this state send the GTL command or turn the instrument off and back on to re establish lo...

Страница 123: ...Header ON RESISTANCE RANGE 100 000E 03 Header OFF 100 000E 03 The current resistance measurement range is100 k During power on Header OFF is selected If an error occurs when a query message is receive...

Страница 124: ...IEEE 488 2 RST 2 Query Program Header These commands are used to interrogate the instrument for the results of the operations measurement values and the current status of instrument settings As shown...

Страница 125: ...er data is not case sensitive although the response messages from the instrument are only in capital letters 2 Decimal Numeric Data Three formats are used for numeric data identified as NR1 NR2 and NR...

Страница 126: ...upon the current path A colon is not required at the start of the header of a Simple or Compound command How ever to avoid confusion with abbreviated forms and operating mistakes we recommend that a c...

Страница 127: ...ervice Request message and dispatches a service request RS 232C does not provide a function for issuing service requests However SRER setup and STB reading are enabled Status Byte Register bit7 bit6 b...

Страница 128: ...ent is initiated by the CLS command Service Request Enable Register SRER This register masks the Status Byte Register Setting a bit of this register to 1 enables the cor responding bit of the Status B...

Страница 129: ...parameters Invalid parameter format Received a command not supported by the instrument Bit 4 EXE Execution Error This bit is set to 1 when a received command cannot be executed for some rea son The s...

Страница 130: ...enabled by its corresponding event status enable register is set to 1 the following happens In case of Event Status Register 0 Status Byte Register STB bit 0 ESB0 is 1 In case of Event Status Register...

Страница 131: ...Bit 4 unused Bit 3 VOLT Voltage Monitor fault Bit 2 CURR Current Monitor Fault Bit 1 CE Hi Contact Check Hi side Fault Bit 0 CE Lo Contact Check Lo Side Fault bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1...

Страница 132: ...F1 key DCL Device CLear Clears the input buffer and the output queue SDC Selected Device Clear Clears the input buffer and the output queue GET Group Execute Trigger When an external trigger occurs s...

Страница 133: ...parity the stop bit is 1 is shown below 9600 bps approximately 960 characters s Wait until measurements stabilize after a change before using a setting command An error occurs when messages are execut...

Страница 134: ...dard Event Status Register 137 IDN Manufacturer s name Model name 0 Software version Queries the Device ID 135 OPC Requests an SRQ after execution completion 136 OPC 1 Queries execution completion 136...

Страница 135: ...cels zero adjustment 141 Measurement Speed SPEEd FAST MEDium SLOW Sets and queries measurement speed 141 SPEEd FAST MEDIUM SLOW Statistical functions CALCulate STATistics STATe 1 0 ON OFF Sets and que...

Страница 136: ...gs Monitor function 149 SYSTem SETMonitor ALLowance 0 to 9 999 SYSTem LOCal Enables the local control state 149 SYSTem DATAout 1 0 ON OFF Sets and queries measurement syn chronized data output 149 SYS...

Страница 137: ...to 0 1 LPResistance CIMProve Range OFF HOLD PULSe Sets and queries contact improver operating mode 160 LPResistance CIMProve Range OFF HOLD PULSE LPResistance CIMProve LEVel Range Level Sets and quer...

Страница 138: ...ditions 158 PRINter SAMPle CONDition ALL IN PRINter SAMPle LINE 1 3 Sets and queries the number of data for the sample printing 158 PRINter SAMPle LINE 1 3 Note Indicates data description Indicates re...

Страница 139: ...es contact check threshold 162 RESistance CONTactcheck LEVel Range L1 L2 L3 L4 L5 L6 L7 RESistance VMONitor Range 1 0 ON OFF Sets and queries voltage level monitor level 162 RESistance VMONitor Range...

Страница 140: ...e SESER mask is set to the numerical value 0 to 255 The initial value at power on is 0 Query The contents of the SESER as set by the ESE com mand are returned as an NR1 value 0 to 255 Example ESE 36 S...

Страница 141: ...al state Note The communications protocol is not initialized Initialized settings are not backed up The following methods are available if backup is needed Method1 Use the SYSTem BACKup command Method...

Страница 142: ...nds have finished processing Execute continuous command after command processing Syntax Command WAI Description The instrument waits until all prior commands finish before executing any subsequent com...

Страница 143: ...nd 2 of SESER 128 64 32 16 8 4 2 1 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 PON URQ CME EXE DDE QYE RQC OPC Read and Clear the Standard Event Status Register SESR Syntax Query Response ESR 0 to...

Страница 144: ...d 5 have been set to 1 128 64 32 16 8 4 2 1 bit 7 bit 6 bit 5 bit 4 bit 3 bit 2 bit 1 bit 0 unused 0 ESB MAV unused unused ESE1 ESE0 Read the Status Byte and MSS Bit Syntax Query Response STB 0 to 255...

Страница 145: ...ice Specific Event Status Register ESR0 Syntax Query Response ESR0 0 to 255 NR1 Note Executing ESR0 clears the contents of ESR0 Set and Query Device Specific Event Status Enable Register ESER1 Syntax...

Страница 146: ...000E 0 Description Command Enter the expected measurement value The instrument is set to the most suitable range for measuring the given numerical value data Query Queries the measurement range settin...

Страница 147: ...ears any zero adjustment Execute Zero Adjustment Syntax Query Response ADJust 0 1 0 Indicates that zero adjustment has succeeded 1 Indicates that the offset resistance value exceeded 10 during zero ad...

Страница 148: ...Execution State Syntax Command CALCulate STATistics STATe 1 0 ON OFF Query Response CALCulate STATistics STATe ON OFF Example CALC STAT STAT ON CALC STAT STAT ON Clear Statistical Calculation Results...

Страница 149: ...DEV 0 0159E 3 0 0161E 3 Query the Process Capability Indices Syntax Query Response CALCulate STATistics CP Cp NR2 CpK NR2 Example CALC STAT CP 0 86 0 14 Set and Query Comparator Settings When making...

Страница 150: ...9965 Set and Query REF Mode Reference Resistance Syntax Command CALCulate LIMit REFerence Reference Resistance Query Response CALCulate LIMit REFerence Reference Resistance Reference Resistance 0 0000...

Страница 151: ...ficient Syntax Command CALCulate SCALing PARameterA coefficient Query Response CALCulate SCALing PARameterA coefficient coefficient 0 50000 to 2 00000 NR2 Note Sets coefficient for the scaling functio...

Страница 152: ...e SYSTem CALibration AUTO ON OFF ON Self Calibration AUTO OFF Self Calibration MANUAL Example SYST CAL AUTO OFF SYST CAL AUTO OFF Note Even when AUTO is selected Self Calibration can be manually perfo...

Страница 153: ...alized to OFF no header Set the EOM Output Method The output method for the external I O EOM end of measurement signal can be selected from two options Set the EOM signal to ON at EOM and set it to OF...

Страница 154: ...nth Day 01 to 31 day Description Sets and queries the date of the real time system clock Error Attempting to set an out of range numerical value returns an execution error Attempting to set a wrong da...

Страница 155: ...two instruments to determine whether they are the same See 4 10 Comparing the Measurement Settings of Two Instruments Settings Monitor Function p 59 Example SYST SETM ON Set Settings Monitor Order 1s...

Страница 156: ...ent Set and Query probe short circuit detection Enables Disables Probe Short Circuit Detection Function Syntax Command SYSTem 4WCHeck 1 0 ON OFF Query Response SYSTem 4WCHeck ON OFF Probe Short Circui...

Страница 157: ...ge Limit Function Syntax Command SYSTem VOLTLimit 0 1 ON OFF Query Response SYSTem VOLTLimit ON OFF Example SYST VOLTL ON System Reset Syntax Command SYSTem RESet Description Initializes all except co...

Страница 158: ...er with INITIATE or READ Trigger by TRIG signal INITIATE CONTINUOUS OFF It can only be set by the Remote command If this has been set to OFF and the operation returns to the Local state or power is tu...

Страница 159: ...OUR IMM Trigger occurs immediately after the system enters the Trigger Wait State INIT CONT OFF Disables continuous measurement INIT Setting the system in the Trigger Wait State execute the triger imm...

Страница 160: ...ned as a space ASCII code 20H Measurement range Measurement value When displaying OvrRng Measurement fault 100 m XXX XXXX E 3 100 0000E 7 100 0000E 8 1000 m XXXX XXX E 3 1000 000E 6 1000 000E 7 3 XX X...

Страница 161: ...ment See Measurement Value Format p 154 Error This command causes an execution error if issued during INITIATE CONTINUOUS ON This command causes an execution error if issued during the Trigger Wait St...

Страница 162: ...function operation mode The Memory function can be disabled OFF or either Data memory function or Auto memory function can be enabled ON Example MEM MODE MEM MEM MODE AUTO Note Changing the memory mod...

Страница 163: ...F4 MANU key on the MENU TRG selection screen or applying the TRIG signal or TRG command Binary data is returned when the Binary sending format is selected Set and Query the Memory Point maximum data q...

Страница 164: ...ter SAMPle NUMBer 1 to 999 NR 1 Example PRIN SAMP NUMB 30 PRIN SAMP NUMB 30 Set and Query the Sample Printing Conditions Syntax Command PRINter SAMPle CONDition ALL IN Query Response PRINter SAMPle CO...

Страница 165: ...Query Response RESistance NPLCycles Range Speed Integration time NPLC Command LPRESistance NPLCycles Range Speed Integration time NPLC Query Response LPResistance NPLCycles Range Speed Integration tim...

Страница 166: ...nce CIMProve Range OFF HOLD PULSE Command LPResistance CIMProve Range OFF HOLD PULSe Query LPResistance CIMProve Range Response OFF HOLD PULSE Range RESistance RNG100MIL RNG1000MIL RNG3 RNG10 RNG100 R...

Страница 167: ...lect CONTinuous when measuring objects that require time for stabilization after applying the measurement current Note When using the Contact Improver function set to HOLD or PULSE the measurement cur...

Страница 168: ...VMONitor Range ON OFF Command LPResistance VMONitor Range 1 0 ON OFF Query Response LPResistance VMONitor Range ON OFF Range RESistance RNG100MIL RNG1000MIL RNG3 RNG10 RNG100 RNG300 RNG1000 RNG10K RNG...

Страница 169: ...ting INITiate CONTinuous OFF continuous measurement disabled TRIGger SOURce IMMediate internal triggering Exporting READ A trigger occurs and a measurement is taken and the result is transferred Expor...

Страница 170: ...time can be minimized Command Processing Response Measured Value Update Measurement Processing Returns the last measured value to the PC Measurement value Measurement value Measurement value Measureme...

Страница 171: ...ent Imports measurement values 10 times and saves measurements in a text file 9 9 Sample Programs Using Visual Basic 5 0 or 6 0 Private Sub MeasureSubRS Dim recvstr As String Receiving char string Dim...

Страница 172: ...t INIT CONT OFF vbCrLf Continuous measurement OFF For i 1 To 10 Wait for PC key input Create a key input check routine to set InputKey True when a key is pressed Do While 1 If InputKey True Then Exit...

Страница 173: ...r Output As 1 Open a text file to save MSComm1 Output TRIG SOUR EXT vbCrLf Select external trigger MSComm1 Output INIT CONT OFF vbCrLf Continuous measurement OFF For i 1 To 10 MSComm1 Output READ vbCr...

Страница 174: ...trigger MSComm1 Output INIT CONT ON vbCrLf Continuous measurement ON Clear confirmation of Ext I O TRIG input MSComm1 Output IO IN vbCrLf recvstr While Right recvstr 1 Chr 10 recvstr recvstr MSComm1 I...

Страница 175: ...etting MSComm1 PortOpen True Open a port MSComm1 Output FUNC RES vbCrLf Select Resistance function MSComm1 Output RES RANG 1E 0 vbCrLf Select 1000 m range MSComm1 Output SPEE FAST vbCrLf Select FAST s...

Страница 176: ...i As Integer pad 0 Board address 0 gpibad 1 RM3542A address 1 timeout T10s Timeout about 10 s Call ibfind gpib0 0 Initialize GP IB Call ibdev pad gpibad 0 timeout 1 0 ud Call SendIFC pad Open App Path...

Страница 177: ...bdev pad gpibad 0 timeout 1 0 ud Call SendIFC pad Open App Path data csv For Output As 1 Open a text file to save Call Send pad gpibad TRIG SOUR IMM NLend Select internal trigger Call Send pad gpibad...

Страница 178: ...r pad 0 Board address 0 gpibad 1 RM3542A address 1 timeout T100s Timeout 100 s because of the external trigger wait state Call ibfind gpib0 0 Initialize GP IB Call ibdev pad gpibad 0 timeout 1 0 ud Ca...

Страница 179: ...rigger wait state Call ibfind gpib0 0 Initialize GP IB Call ibdev pad gpibad 0 timeout 1 0 ud Call SendIFC pad Open App Path data csv For Output As 1 Open a text file to save Call Send pad gpibad TRIG...

Страница 180: ...ress 1 timeout T10s Timeout about 10 s Call ibfind gpib0 0 Initialize GP IB Call ibdev pad gpibad 0 timeout 1 0 ud Call SendIFC pad Call Send pad gpibad FUNC RES NLend Select Resistance function Call...

Страница 181: ...red to as VB2005 below Create with Visual Basic 2005 Depending on the environment of the PC and VB2005 the procedure may differ slightly from the one described here For a detailed explanation on how t...

Страница 182: ...win dow of each button to appear as shown in the diagram 4 Right click Form1 in the solution explorer and select View Code 1 Right Click 2 Click Follow the procedure below so that the VB2005 window b...

Страница 183: ...buttons during communication a Button2 Enabled False Dim sp As New SerialPort COM1 9600 Parity None 8 StopBits One Communication port setting b sp NewLine vbCrLf Terminator setting c sp ReadTimeout 20...

Страница 184: ...ssion speed 9600 bps Parity none Data length 8 bit Stop bit 1 bit c Sets CR LF as the terminator indicating the end of the sent and received character string d Sets the reading operation time to 2 sec...

Страница 185: ...m 2 CALCulate STATistics MINimum 2 CALCulate STATistics LIMit 4 CALCulate STATistics DEViation 2 CALCulate STATistics CP 2 MEMory DATA Number of stored values CALCulate LIMit ABS 2 CALCulate LIMit PER...

Страница 186: ...e IDN query See Shared Commands p 135 17 The capacity of the protected user data stor age area when the PUD command and the PUD query are executed The PUD command and PUD query are not used Fur ther t...

Страница 187: ...t sourcing terminal HPOT jack High side voltage detection terminal LPOT jack Low side voltage detection terminal LCUR jack Current detection terminal GUARD jack measurement ground potential Operation...

Страница 188: ...mit ABS values Selected range Range of reference REF and upper limit ABS values Selected range 0 00 m to 100 09 m 100 m 0 00 m to 100 09 m 100 m 100 1 m to 1000 9 m 1000 m 100 1 m to 1000 9 m 1000 m 1...

Страница 189: ...ge Default setting As per following table Setting range 0 1 ms to 100 0 ms PLC setting 1 to 5PLC 50 Hz 1 to 6PLC 60 Hz PLC Power Line Cycle One power line cycle at 50 or 60 Hz Table 2 Integration Time...

Страница 190: ...HCUR and between LPOT and LCUR termi nals for each range Default setting ON 200 Setting ON OFF Threshold setting 50 100 150 200 300 400 500 reference value Current Monitor Function Operation Detects...

Страница 191: ...ing When VOLT LIMIT is ON or LOW POWER is ON applies the contact improvement cur rent for only 300 s before measuring Default setting ON Current limited to 35 mA 100 m range to 100 k range LOW POWER O...

Страница 192: ...ms Setting Mode HOLD PULSE Pulse width 1 ms to 100 ms Operation Measurement values are automatically output when measurement is finished Default setting OFF Setting ON OFF Default setting ASCII Setti...

Страница 193: ...lected on the MENU TRG selection screen Default setting OFF Setting ON OFF Memory capacity 30 000 volatile memory no backup Operation Acquire once the measured value has stabilized using internal cont...

Страница 194: ...les measurement to be automatically retried when a measure ment fault occurs due to probe chatter If a measurement fault persists after the specified continuous retry interval retrying is aborted and...

Страница 195: ...189 10 33 Remote Function Operation During REMOTE operation by RS 232C or GP IB all front panel operations are dis abled Cancellation methods F1 LOCAL key By RS 232C SYSTem LOCal command By GP IB GTL...

Страница 196: ...EOM INDEX ERR PRB_SHORT CE_HI CE_LO Optocoupler isolated NPN open collector output VCE DC 30 V max Residual voltage 1 5 V or less IC 50 mA 1 V or less IC 10 mA IC 50 mA max ch External power output 1...

Страница 197: ...No X flow no hardware flow GP IB interface RM3542 51 only Communication contents Remote control Interface Functions SH1 All Source Handshake functions are supported AH1 All Acceptor Handshake functio...

Страница 198: ...00 000 dgt 0 009 0 003 0 007 0 002 0 007 0 001 10 mA 300 360 000 300 000 dgt 0 009 0 003 0 007 0 002 0 007 0 001 3 33 mA 1000 1200 000 1 000 000 dgt 0 008 0 003 0 006 0 002 0 006 0 001 1 mA 10 k 12 00...

Страница 199: ...easuring instrument dgt resolution The smallest displayable unit on a digital measuring instrument i e the input value that causes the digital display to show a 1 as the least significant digit 2 Meas...

Страница 200: ...nd measurement jacks Applicable Standards Safety EMC EN 61010 EN 61326 Class A EN 61000 3 2 EN 61000 3 3 Effect of radiated radio frequency electromagnetic field 3 f s at 10 V m Effect of conducted ra...

Страница 201: ...on and Repair Do not modify dismantle or repair the instrument Doing so may cause a fire an elec tric shock or injury If a failure is suspected check Before Returning for Repair p 196 and then contact...

Страница 202: ...r transformer or other large inductance Are the probes and measuring object adequately shielded Appendix 3 Unstable Measure ment Values p A3 Measurement values are shifted Is zero adjustment ON Were t...

Страница 203: ...SPEED The SPEED settings are different from the other instrument Make the SPEED settings the same p 59 ERR 011 Zero adjustment error Offset value exceeds 10 Out of zero adjust range Check the zero adj...

Страница 204: ...Meas CPU A D data Hardware error Repair is required ERR 114 Hardware error Meas CPU Hardware error Repair is required INFO 001 Printing Printing in progress INFO 002 Memory full Memory full Delete sto...

Страница 205: ...y Required tools One Phillips screwdriver No 1 One pair of tweezers to remove the lithium battery 1 Remove the six screws from the sides and one screw from the rear 2 Remove the cover Insert the tip o...

Страница 206: ...11 4 Disposing of the Instrument 200...

Страница 207: ...easurement probe Appendix Appendix 1 Four Terminal Voltage Drop Method Figure 1 r1 r2 E I Constant current source Voltmeter Resistance R0 Two Terminal Measurement Method Four Terminal Measurement Meth...

Страница 208: ...10 mA Measurement value actually displayed on this instrument will be as follows 1 x 10 mA 10 V 10 mA 1 00100 On this instrument the offset voltage compensation OVC function is enabled in the ranges...

Страница 209: ...noise suppres sion countermeasures For high resistance measurements connecting the shield to the GUARD potential is helpful In low resistance range and low power resistance measurement it is effectiv...

Страница 210: ...f the Model Hioki 9140 10 4 Terminal Probe are jagged As shown in Fig 5 enlarged view of probe tip contact area the measurement current flows from multiple points and the voltages are detected at mult...

Страница 211: ...at which current is injected minute changes in the position of contact are associ ated with significant changes in the measured value It is known that such effects can be minimized by detecting the vo...

Страница 212: ...otor moves measurements may be unstable due to induced voltage on the measured winding Pay attention to the treatment of unconnected ter minals on transformers or to motor vibration Range Measurement...

Страница 213: ...ioki distributor for further assistance 10 Non Four Terminal Measurements The four terminal method requires that four probes be connected to the DUT By measuring as shown in Fig 10 the measured resist...

Страница 214: ...arding the mounting screws to avoid instru ment damage and electric shock accidents When installing the Rack Mounting Plate the screws must not intrude more than 3 5 mm into either side of the instrum...

Страница 215: ...near the front 2 Insert the spacers on both sides of the instrument attach the Rack Mounting Blackets with the M4 x 10 mm screws When installing in a rack support it by a stand or other commercially a...

Страница 216: ...Appendix 5 Dimensional diagram A10 Appendix 5 Dimensional diagram Unit mm...

Страница 217: ...gure Note that calibration cannot be performed with the Clip Type Probe such as 9140 10 Appendix 6 Calibration Ambient temperature and humidity 23 C 5 C 80 RH or less Warm up time 30 minutes Power sou...

Страница 218: ...less Calibration using Fluke 5700A at 10 to 10 M 0 calibration Calibration using standard resistance Standard resistance Four terminal configuration to RM3542 RM3542A RM3542 RM3542A RM3542 RM3542A RM3...

Страница 219: ...endix 7 Adjustment A13 Appendix The System screen includes an adjustment screen The Adjustment screen is used by Hioki for repair and adjustment purposes It is not for customer use Appendix 7 Adjustme...

Страница 220: ...at1 9999E 2 to 9999E 2 CALCulate LIMit PER Cent float1 float2 CALCulate LIMit PER Cent float1 float2 float1 99 990 to 99 990 float2 99 990 to 99 990 LH XANS1 LHfloat1 LLfloat2 float2 9999E 2 to 9999E...

Страница 221: ...delimiters are shown they must be included at the end of each command line AX 162D Original mode RM3542A M0 CALCulate LIMit MODE REF RESistance RANGe 100E 3 RS100E 3 CALCulate LIMit REFerence 100E 3...

Страница 222: ...e voltage between HPOT and LPOT to 0 V short between HPOT and LPOT If the probe lead resistances RSEH RSEL are less than a few there will be no problem This is because the POT terminal is a voltage me...

Страница 223: ...rrectly On the other hand as in b when HPOT and HCUR and LPOT and LCUR are connected respectively and if Hi and Lo are connected in a circuit the voltage of I RShort will be gen erated between HPOT an...

Страница 224: ...2 shows the connection state of the tip of the lead and equivalent circuit in the respec tive correct and wrong connections As indicated above a correct connection method will be as shown in Table 1...

Страница 225: ...lent circuits of the two connection meth ods connecting Pin Type Lead to zero adjustment board and connecting that to a metal board or similar object When using the zero adjustment board connection wi...

Страница 226: ...to make the connec tion shown in Table 1 a and performing zero adjustment you can replace it with a self made probe to measure with the offset removed from the measurement instrument If AC resistance...

Страница 227: ...t Improvement Function Contact Improver 52 Continuous measurement 31 152 Crossover wiring 112 Current Mode Setting Function 56 Current Monitor Fault 40 Current Monitor Function 41 D Data exporting met...

Страница 228: ...ing 24 Measurement range 30 32 43 181 Normal display measurement screen 17 Measurement Settings screens 17 Measurement settings 27 Measurement Settings screens 19 Measurement Speed 29 48 Measurement t...

Страница 229: ...7 Short circuited probes 57 Signal pinouts 96 Standard deviation of sample 84 Standard Event Status Register 123 STAT 85 Statistical calculation results 86 Statistical calculation results Printing 93...

Страница 230: ...Index Index 4...

Страница 231: ...HIOKI E E CORPORATION...

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