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121 

9.4 Signal 

Timing 

 

(1) Voltage 

output 

 
          /START 
 
          /STOP 
 
          /VON 
 

(2)  Regular measurement (Internal trigger mode) 

 
          /INDEX 
 
          /EOM 
 
          /V.CHECK GO 
 
          /C.CHECK GO 
 
          /COMP GO 
 

(3)  Regular measurement (Sequence off, External Trigger mode) 

 
          /TRIGGER 
 
          /INDEX 
 
          /EOM 
 
          /V.CHECK GO 
 
          /C.CHECK GO 
 
          /COMP GO 
 

(4) Open 

correction 

 
          /OPEN 
 
          /VON 
 
          /INDEX 
 
          /EOM 
 
          /OPEN GO 
 

                                         

                                         

           

Measuring voltage being output 

             

                                         

                                         

                                         

                                         

                                         

                                         

                                         

                                         

                                         

                                         

                                         

                                         

                                         

                                         

                                         

                                         

Summary of Contents for DSM-8542

Page 1: ...DIGITAL SUPER Instruction Manual DSM 8542 July 2013 Revised edition 1 DS8542A981 01 13 07H MEGOHMMETER...

Page 2: ......

Page 3: ...he range of 30fA to 10mA A liquid crystal display module 240 x 64 dots of the meter allows easy viewing of needed information and ease of use The meter is an insulation resistance meter and requires i...

Page 4: ...operational instructions are described in this manual under the following headings Strictly follow these precautions and operational instructions Warning Indicates a potentially hazardous situation wh...

Page 5: ...nted on the front and rear panels 5 Preparations for Measurement This chapter describes the screen of the meter for measurement settings on the screen operating method methods for indicating measured...

Page 6: ...mbustible gas exists Otherwise an explosion or a fire may break out Be certain to ground the grounding pin of the power cable to prevent an accident If the grounding pin of the power cable cannot be g...

Page 7: ...lf diagnosis function 5 2 2 5 Comparison measurement and deviation percent measurement functions 5 2 2 6 Measurement jig setting and data processing function 5 2 2 7 Measuring sequence program 6 2 2 8...

Page 8: ...age source SETUP POWR 45 5 2 15 Setting high speed measuring mode SETUP FAST 47 5 2 16 Setting interface conditions 47 5 3 Display and Processing of Measured Value 50 5 3 1 Displaying measured value 5...

Page 9: ...7 10 3 Command parameter trouble 95 7 10 4 Limit on command message execute 95 7 10 5 Output buffer readout 95 7 11 Status Byte and Events 96 7 12 Status Data 97 7 13 Status Byte Register 98 7 14 Usi...

Page 10: ...9 4 Signal Timing 121 9 5 PSU 8541 Connectors 123 10 Maintenance 10 1 Periodical Checks for Maintenance 124 10 2 Calibration 124 10 2 1 Equipment needed for calibration 124 10 2 2 Calibration of meas...

Page 11: ...age or missing accessory is found please contact our distributor or sales office near your location 1 2 Operating Power Supply This meter is powered by the following power supply Power supply voltage...

Page 12: ...length of measuring cable Depending on the length of the measuring cable adjustment of the meter is necessary to correct open values in the contact check function The meter was adjusted for use of the...

Page 13: ...99 nA 999 99 nA 9 9999 A 99 999 A 0 1 fA 1 0 fA 10 fA 100 fA 1 pA 10 pA 100 pA 1 nA 3 0 of rdg 1 2 of range 1 5 of rdg 0 6 of range 0 6 of rdg 0 6 of range 0 4 of rdg 0 5 of range 0 4 of rdg 0 5 of ra...

Page 14: ...is output is measured and is compared with the set voltage Any deviation from the specified range is indicated by flashing of the side mark V CHK ON display 2 2 3 Contact check function Connection of...

Page 15: ...ercent measurement display The unit is indicated by or in a measuring mode during measurement Reference values can be set within whole measuring ranges Description Comparison method Upper limit compar...

Page 16: ...ranges are displayed in a bar graph Measured values are classified into ten types and numbers of data groups are stored by digitally counting them by a counter Thresholds are set for the individual me...

Page 17: ...he meter using the handler used in measurement The communication items and electrical specification are as follows Communication items Opening and closing of shielding box key lock of front panel keys...

Page 18: ...PSU 8541 Power supply frequency 50 60Hz Power consumption 55VA max 350BVAmax dedicated power supply unit PSU 8541 External dimensions mm 332 W x 89 H x 450 D 332 W x 179 H x 450 D dedicated power supp...

Page 19: ...Same as above Weight Electrode SME 8320 For surface and volume resistance measurement Designed for use with SME 8350 Shielding Box Shielding Box SME 8350 Measurement box for shielding dielectric inte...

Page 20: ...ltage source of this meter can set a large maximum output current allowing simultaneous measurement of up to four channels so that measuring time can be shortened in measuring a sample with a large el...

Page 21: ...11 3 2 Block Diagram of DSM 8542...

Page 22: ...nd rear panels of this meter Warning symbol This symbol is marked where the operational manual needs to be referred to Electrical This symbol indicates high voltage hazard and is indicated on terminal...

Page 23: ...ng of trigger input 4 START lamp Pressing the START key lights up this lamp going off when the STOP key is pressed The set voltage is output and trigger input can be received while the START lamp is l...

Page 24: ...The connector of a double structure comprising a center conductor and outer conductor connecting to measurement input and to the CH1 CH2 of the VOLTAGE INPUT connector on the rear respectively The co...

Page 25: ...ween the OUTPUT CH1 and INPUT CH1 terminals It is connected to OUTPUT terminal CH2 17 OUTPUT terminal CH2 A terminal for measuring voltage output Resistance is measured between the OUTPUT CH2 and INPU...

Page 26: ...for GP IB connection 24 EXT TRIGGER connector The connector for external trigger input This connector is used when the trigger mode is set to external EXT 25 INTERLOCK connector The input connector fo...

Page 27: ...setting the measurement screen and the setting screen by pressing this key LOCK 0 Key lock Press this key to prohibit key input Pressing this key prohibits operations of the keys other than the STOP a...

Page 28: ...ontact check The key to execute once a contact check When in the Numeric Input mode the key will become a BS key to delete characters that are input MOD 4 Deviation Measuring mode The key to move to t...

Page 29: ...ential Measurement monitoring screen When in the Numeric Input mode the key will become an input key 7 COMP 8 Compare The key to move to the Comparison Measurement Setting screen When in the Numeric I...

Page 30: ...ide mark will be lit when the number of data groups saved by the buffering function for 1000 data groups exceeds 1000 Measured data after this mark is lit will be discarded without being stored in the...

Page 31: ...unction is not on when the side mark is not displayed The side mark flashes when a decision result is NG V CHK ON A side mark on the screen indicates the ON OFF status of the voltage check function Th...

Page 32: ...operation of the unit by the keyboard and LCD screen of the meter This option power supply unit is most suitable in obtaining maximum performance of the DSM 8542 5 1 1 Connecting dedicated power suppl...

Page 33: ...nected CH1 2 and CH3 4 Jig for charging List of Connection Cables Connected To Cable V CONTROL DSM 8542 connection cable A VOLTAGE INPUT OUTPUT DSM 8542 connection cable B Interlock DSM8104F Measuring...

Page 34: ...power source other than PSU 8541 Cautions In case the dedicated power supply unit PSU 8541 is not used 1 Voltage control requires control of GP IB and other interfaces in addition to the meter 2 Disc...

Page 35: ...resume function Warning Before turning the power on check that the AC power supply voltage to be used matches the power supply voltage specified on the rear panel If they do not match a fire or damag...

Page 36: ...In addition to a Self diagnosis function this meter has a Self calibration function which allows users to execute self calibration checks at preset intervals The factory default settings are Self cali...

Page 37: ...een in large characters Measured values that are displayed are always results of most recent measurement The Measured Value Display screen is split into the Regular Measurement screen and Sequential M...

Page 38: ...reen Measuring Power Source Setting screen Program Create screen Open Correction Value Setting screen Waiting for key input Waiting for key input Waiting for key input Waiting for key input Waiting fo...

Page 39: ...Indication type Unit indication Exponential indication F1 DISP F1 UNIT F1 DISP F2 EXP Number of effective digits 2 to 5 columns F1 DISP F3 FIG Measuring mode Resistance measurement A Current measureme...

Page 40: ...es not go off till next check is carried out or a decision is made Set the measuring conditions for the Measured Value Display screen as follows a Press the F5 RESET key b Move the cursor to a desired...

Page 41: ...ge 1 8 AUTO HOLD Range Integral Capacity 1 10 F 2 1 F 3 100 nF 4 10 nF 5 1 nF 6 100 pF 7 10 pF 8 10 pF 2 RANGE Current range F2 DOWN F3 UP F4 AUTO F5 HOLD SEQ Sequential measurement Program No 0 9 ON...

Page 42: ...the Setting screen in accordance with a measuring condition or other items The Setting screen has a dedicated screen for each set item To reset to the Measured Value Display screen press the ENTER key...

Page 43: ...create screen See 4 3 11 OPEN Open Correction Value Setting screen See 4 3 12 5 2 2 Setting measuring mode This meter has four measuring modes capable of measuring resistance current surface resistivi...

Page 44: ...the numeric keys or by selecting from the following preset values c The F2 and F3 keys perform the DOWN and UP functions respectively in the Measuring Condition Setting mode to sequentially change pre...

Page 45: ...while outputting measuring voltage serially insert protective resistance not exceeding the maximum permissible current of the contact to limit the current flow in the contact for protection of the rel...

Page 46: ...a measuring voltage output unit and calculates an insulation resistance value based on a measured current value and measuring voltage The measuring range of the meter indicates a current measuring ran...

Page 47: ...on of the power source period A long integral time also increases the measuring time Set an appropriate integral time depending on measured resistance value current value referring to 5 1 5 Setting me...

Page 48: ...ges to TRIG b Each pressing of the F1 TRIG key alternately changes the trigger mode of the key to the Internal Trigger INT Manual Trigger MAN and External Trigger EXT modes The trigger mode is indicat...

Page 49: ...uring voltage sometimes still remains inside the sample after measurement is finished when high voltage is impressed in manual measurement Removal of a sample immediately after measurement is hazardou...

Page 50: ...ated Ten types of sequence programs 0 to 9 can be created 3 Charging time measuring time and discharging time setting In sequence program measurement the operational sequence of DISCHG1 CHARG MEAS TIM...

Page 51: ...e functions of the functions keys on this screen will change to F2 DOWN F3 UP F4 TOP and F5 END In the absence of data in the data buffer none will be displayed The content in the data buffer will be...

Page 52: ...n to the Function Selection screen See Fig 5 21 4 Data buffer usage The data buffer is useful such as when analyzing data after taking measurement Measurement can be performed relatively quickly if da...

Page 53: ...lowing functions F1 CONF Condition setting F2 SELF Self diagnosis function F3 CAL Self calibration function F4 POWR Measuring voltage source setting F5 FAST High speed measuring mode Pressing the indi...

Page 54: ...ER key to return to the Measurement screen 2 AUTO MODE setting This function executes self calibration self calibration check of the A D converter and range automatically at a preset time interval OFF...

Page 55: ...reen Press the ENTER key to return to the Measurement screen after completing setting The following settings for internal connection are important settings CH1 2 PA PB CH3 4 PA PB Be certain to set th...

Page 56: ...turned on is set during preshipment inspection of the meter at the HIOKI factory Table 5 8 Current Limit Values Example when PSU 8541 is used Set Current Limit Value Current Value Voltage Range Measur...

Page 57: ...Setting for stopping measuring range check Confirmation measurement ON OFF Select a set item by operating the and keys Select ON OFF by operating the and keys such as F4 ON and F5 OFF The selected it...

Page 58: ...The interlock function will be enabled In this case output of measuring voltage will be enabled if INTERLOCK input in the rear is short circuited low level input prohibiting output of measuring volta...

Page 59: ...er and mask register will be initialized New settings will become necessary 6 RS 232 communication condition setting Set RS 232 communication conditions in 232 items on PAGE 2 2 232 BAUD RS 232C baud...

Page 60: ...ing screen counts down the following items as the sequences advance enabling viewing of sequence progresses at a glance Discharging time before measurement DCHG1 Charging time before measurement CHARG...

Page 61: ...d on the screen When setting a channel select 1 2 3 4 by keying the and keys Select a mode by keying the and keys Select HI IN or LO Setting of UPPER or LOWER sets the input status of the numeric keys...

Page 62: ...UPPER LOWER is not established disabling keying of the ENTER key 3 Result display of comparison measurement The side mark for COMP ON on the right in the screen flashes if the decision result of a com...

Page 63: ...return to the measurement screen Notice Deviation is displayed only on the screen and normal measured values are output to the interface 5 3 4 Creating histogram This function is enabled in manual tri...

Page 64: ...R key to move the input position to 9 and input new thresholds beginning large values When partially changing a set value move the cursor to the position desired to change and input a new value The se...

Page 65: ...ETH in a bar graph The number shown in 1 represents a data quantity larger than Threshold 1 the number shown in 2 represents a data quantity between Thresholds 2 and 1 and similarly the numbers shown...

Page 66: ...ed on the front panel are described INPUT A coaxial measuring input terminal whose outer electrode shielded side is connected to the voltage input terminal of the VOLTAGE INPUT connector on the rear p...

Page 67: ...t uniform when shapes or weights are large or when fewer samples are measured more measurements are made without using a holder or a jig for measurement 6 2 1 Using measuring jigs Efficient measuremen...

Page 68: ...s show an example of connection between CH1 equipment and the DSM 8542 Fig 6 1 Example of Holder with Guard Fig 6 2 Principle of guard In measurement using a holder with a guard illustrated in Fig 6 1...

Page 69: ...When measuring samples by changing samples jigs or terminals to be measured a change must be must be made tuned to timing of meter operation by the following two methods a Change the sample or the jig...

Page 70: ...a large electrostatic capacity such as capacitors For more information refer to 6 7 2 Contact check Measuring time can be shortened and measurement accuracy can be enhanced by taking measurement afte...

Page 71: ...d converting it into a resistance value Generally a dielectric absorption current is substantially large compared with a leakage current and time constant of it is very large depending on the type of...

Page 72: ...and devices of a structure that become terminals only by contacting a sample are used more Terminals for measurement must be free of malcontact and must contact the sample tightly However the shape a...

Page 73: ...ces of insulating materials are mutually compared insulation resistances unique to insulating materials that are not affected by terminal shape or other factors are needed These are volume resistivity...

Page 74: ...to 5 1 2 Setting measuring mode The meter is capable of automatically performing calculations of volume resistivity and surface resistivity mentioned in 1 For this purpose set in advance constants of...

Page 75: ...D1 70 D2 90 If D1 76 D2 88 t 0 010 t 2 000 t 0 100 t 5 000 t 0 200 t 10 000 t 0 500 t 20 000 t 1 000 t 30 000 Press the ENTER key after finishing setting The screen will return to the measurement scre...

Page 76: ...Measuring Parts Circuits and Other Items and 6 3 Measuring Planar Sample when a shielding box is used 2 Interlock function setting Output of measuring voltage is sometimes not safe such as when the l...

Page 77: ...K indication on the left of the LCD screen CUTOFF The interlock function will be disabled Measuring voltage can always be output irrespective of the INTERLOCK input on the rear 6 4 Measuring Liquid Sa...

Page 78: ...esistivity Set an electrode constant as follows On the screen illustrated in Fig 6 4 press the F5 ACTL key The screen will change to the Electrode Constant Setting screen illustrated in Fig 6 8 Input...

Page 79: ...e meter as in measurement of insulation resistance The polarities of the OUTPUT terminal and INPUT terminal are and See 6 1 1 Functions of and Connecting Measuring Terminals respectively Connect the t...

Page 80: ...output to the sample after pressing the STOP key Be cautious and do not touch metal parts impressed with voltage till the inside of the meter is thoroughly discharged 6 7 Measurement Check The meter i...

Page 81: ...ned because an electrostatic capacity of the measuring cable enters the jig capacity in parallel The measuring cable length was adjusted to 1m during a preshipment inspection at the factory Readjustme...

Page 82: ...tact check when setting an open correction value Press the OPEN SET OPEN CHECK PARAMETER key on the measurement screen The screen will change to the screen to set a reference value for contact check S...

Page 83: ...ddresses 0 to 30 can be set Remote status cancel Cancelled by pressing LOCAL key on the panel Table 7 1 Interface Functions Function Description SH1 Source handshake All functions AH1 Acceptor handsha...

Page 84: ...the DFM command 1 Basic format Data for channels that are set up will be sequentially returned Measured data for each channel will be delimited by data separators EOI Example In case of 1CH 2CH 3CH 4C...

Page 85: ...rrange If status is 0 results are normal in all events Comparison result When Comparison Measurement is set to ON results of comparison measurement will be set 0 to 2 0 HI Measured value exceeded uppe...

Page 86: ...d length See Table 7 3 List of Program Messages when deciding which format will be used NR1 format Data strings Integers Mainly setting type and status NR1 format Data strings Integers Mainly setting...

Page 87: ...ASCII character strings In this manual program messages are also described generically as commands or command messages Program messages are classified as follows Table 7 2 Classification of Program M...

Page 88: ...mples These commands can be used with program data that requires no alterations Example 1 Altering only sequence program No SEQ 2 Example 2 Altering Sequence Discharge 2 SEQ 3 Example 3 Shutting down...

Page 89: ...79 Syntax Chart Fig 7 1 Message Syntax Chart...

Page 90: ...80 Command program header Fig 7 2 Program Header Syntax Chart...

Page 91: ...81 Fig 7 3 Syntax Chart of Data Part...

Page 92: ...3 No data output Returns to default when power is turned on Format DFM d1 d1 NR1 format DFM Query response in output data format designation is same as setting Format DFM Response d1 MON Changeover b...

Page 93: ...None 1 Data found Format FMS d1 d2 d3 d4 d1 NR1 format d2 NR1 format d3 NR1 format d4 NR1 format FSM Query response of trigger delay time is same as setting Format FSM Response d1 d2 d3 d4 SPL Integr...

Page 94: ...2 5 Format FIG d1 d1 NR1 format FIG Query response on setting number of effective columns for measured value display is same as setting Format FIG Response d1 RNG Current range setting AUTO HOLD sele...

Page 95: ...s same as setting Format VCM Response d1 CCM Selection of auto contact check execute mode d1 Select 0 1 0 OFF 1 ON Format CCM d1 d1 NR1 format CCM Query response of auto contact check execute mode is...

Page 96: ...ttable parts are set Format ELC d1 d2 d3 d4 d5 d1 NR1 format d2 NR2 format d3 NR2 format d4 NR2 format d5 NR2 format ELC Query response electrode data is same as setting Format ELC Response d1 d2 d3 d...

Page 97: ...d1 NR1 format d2 NR1 format d3 NR2 format d4 NR2 format d5 NR2 format d6 NR2 format SEQ Same as set items of query SEQ command message in sequential mode Returns current set data d1 Mode 0 1 d2 Progr...

Page 98: ...d3 NR3 format d4 NR3 format CMP Query response of Comparison Measuring mode is same as setting Format CMP Response d1 d2 d3 d4 WCP Work capacity setting Capacity of work for open correction value cal...

Page 99: ...ON Low noise mode d4 Current limit value for measurement 0 4 0 0mA 1 5mA 2 10mA 3 25mA 4 50mA d4 Current limit value for charging 0 4 0 0mA 1 5mA 2 10mA 3 25mA 4 50mA Note An external power supply uni...

Page 100: ...Response d1 THL Histogram display threshold setting d1 Applicable channels 1 15 d2 d10 threshold 1 9 Notes 1 Applicable channels are numerics 1 15 assigning four channels to four bits Bit3 bit2 bit1 b...

Page 101: ...at d4 NR1 format CCK Executes contact check once and returns result of it as a response d1 CH1 result 0 1 d2 CH2 result 0 1 d3 CH3 result 0 1 d4 CH4 result 0 1 0 NO 1 GO Format CCK Response d1 d2 d3 d...

Page 102: ...l data in the data buffer is output continually beginning oldest data Format RBF d1 Response If ASCII If binary Binary response data with length specification CBF Measured data buffer clear Correspond...

Page 103: ...ental data No 0 9 Format RCL d1 d1 NR1 format IDN Equipment ID query Returns equipment IDs of DSM as responses d1 HIOKI DSM8542 0 01 00 Format IDN Response d1 Character string CAL Self calibration cur...

Page 104: ...NR1 format ESE Query of data in the standard event status enable register Response data is same as setting Format ESE Response d1 NR1 format ESR Query of data in the standard event status register d1...

Page 105: ...command message execute The following command messages can be executed only in a start state If executed in a stop state no processing will be performed and a result of the previous execution will ret...

Page 106: ...the enable register masks enable or disable for each event or status before ORing them As the MSS Master Summary Status bit the bit in the DIO7 position becomes logical OR of the seven other bits Thes...

Page 107: ...URQ 6 CME 5 EXE 4 DDE 3 QYE 2 RQC 1 OPC 0 7 6 BOV 5 BFL 4 STP 3 ITL 2 LM2 1 LM1 0 Device Event Status Register Logical OR 7 6 BOV 5 BFL 4 STP 3 ITL 2 LM2 1 LM1 0 Device Event Status Enable Register Q...

Page 108: ...Device event status register Error register SRE Sets Service Request Enable register SRE Queries Service Request Enable register STB Queries Status Byte Register ERR ERROR RQS Request Service MSS Mast...

Page 109: ...enable has been set RQS is cleared by SR function status byte read during serial polling but MSS is not cleared bit5 ESB Standard event has occurred One of the bits of the standard event status regis...

Page 110: ...valid unless this condition is met 5 THL command Histogram counter threshold setting Do not omit program data by this command Other commands that have more than one program data groups can omit unnece...

Page 111: ...commands and trigger commands have response data and detection of end of processing of them can most suitably be accomplished by monitoring the MAV bit of the Status Byte register The MAV bit remains...

Page 112: ...tinually executing commands When executing commands that have response data send the commands in one line by separating them by as shown earlier An error will result and only the result of the last co...

Page 113: ...SE Sets the Standard Event Status Enable register ESE Queries the Standard Event Status Enable register ESR Queries and clears the Standard Event Status register Standard Event Standard Register Stand...

Page 114: ...be ignored in execution bit4 EXE Execution error A received message cannot be executed at present or parameter value is outside the range These are errors grouped in DRE and CNE bits of the Error regi...

Page 115: ...wing registers Status Byte register Standard Event Status register Device Event Status register Error register ERR Queries and clears the Error register MLE Message Length Error HDE Header Error DFE D...

Page 116: ...of parameters has exceeded a specified number There are parameters that cannot be recognized Reset by reading this register bit3 DRE Data range error Set when a parameter value is outside specified ra...

Page 117: ...Status register Device Event Status register Error register DSE Sets Device Event Status Enable register DSE Queries Device Event Status Enable register DSR Queries Device Event Status register Device...

Page 118: ...Measured data buffer full Set when the measured data buffer becomes full Reset when the buffer becomes empty bit3 STP Measurement stop event Set by one of the following factors The STOP key is pressed...

Page 119: ...RST Measuring mode MOD Resistance measurement Resistance measurement Trigger mode TGM Internal Internal Measuring voltage IVS 0 1 V 0 1 V Integral time SPL 300 ms 300 ms Averaging AVE ON ON Measuring...

Page 120: ...ER t THICKNESS K ELC 50 0 mm 70 0 mm 0 1 mm 0 01 Interfaces INTERLOCK BEEP ON OFF BEEP NO GO CLICK GP IB ADRS 232 BAND 232 DATA 232 PARI 232 STOP CNF CUTOFF ON NO ON 1 4800 7BIT NON 1BIT Auto calibrat...

Page 121: ...o Signal Name Function Remarks 1 DCD Reception carrier detection Not used with DSM 8542 2 RXD Reception data 3 TXD Transmission data 4 DTR Data terminal ready 5 GND Signal ground 6 DSR Data setting re...

Page 122: ...one second The DSM 8542 does not support flow control by the XON XOFF code Notice Data is sometimes lost if flow control by a control signal is not performed Wait a suitable time when processing a co...

Page 123: ...o reset to a local state from a remote state Table 8 3 Invalid Messages Mnemonic Description OPC OPC bit setting when processing ends OPC 1 is returned when operation completes Sending a command messa...

Page 124: ...t 8 26 9 V CHECK GO A Output 27 V CHECK GO B Output 10 C CHECK GO 1 Output 28 C CHECK GO 2 Output 11 C CHECK GO 3 29 C CHECK GO 4 Output 12 OPEN GO 1 Output 30 OPEN GO 2 Output 13 OPEN GO 3 31 OPEN GO...

Page 125: ...ce when sequential measurement is ON STOP Stop input and has the same function as that of the STOP key on the panel Turns off voltage output and stops measurement Stop input can always be input Not di...

Page 126: ...Output for acceptable non acceptable decision in comparison measurement 1 4 Output becomes active when decision is acceptable as measurement result EOM Output signal to indicate that measured data can...

Page 127: ...ommon terminal of the output signals is DC isolated from the internal circuit An equivalent circuit of the output circuit is illustrated in Fig 9 1 Output Signal Characteristics Output Voltage LOW HIG...

Page 128: ...lent circuit of the input circuit is illustrated in Fig 9 2 Input Characteristics Maximum Input Voltage LOW HIGH Maximum Input Current 0 5 V 5 V 1 2 mA Notice Output the output of the handler side by...

Page 129: ...nnector outer conductor is DC isolated from the internal circuit The common side is connected to the input signal common terminal Pins 2 and 20 of the handler interface An equivalent circuit of the in...

Page 130: ...connected to the 5V power source inside Output the control side output by an open collector or TTL output The common side connector outer conductor of the interlock signal is DC isolated from the int...

Page 131: ...ular measurement Internal trigger mode INDEX EOM V CHECK GO C CHECK GO COMP GO 3 Regular measurement Sequence off External Trigger mode TRIGGER INDEX EOM V CHECK GO C CHECK GO COMP GO 4 Open correctio...

Page 132: ...check only V CHECK INDEX EOM V CHECK GO 6 Execution of contact check only C CHECK INDEX EOM C CHECK GO 7 Sequential measurement START VON INDEX EOM PROGRAM V CHECK GO C CHECK GO COMP GO Discharge Cha...

Page 133: ...VOLTAGE INPUT is a voltage input connector manufactured to HIOKI s special specification Pin assignment of the VOLTAGE INPUT connector on the DSM 8542 side Pin assignment of the VOLTAGE OUTPUT MEASUR...

Page 134: ...ue of a sample based on measuring voltage impressed to the sample and on measured current value The resistance measurement accuracy of this meter is calibrated by calibrating the output voltage accura...

Page 135: ...reference resistance of 100G and measuring voltage of 1V The relationship between the reference resistance and current measuring range is shown below Measuring Voltage Reference Resistance Current Ran...

Page 136: ...sis for the self diagnosis function executed by keying In case malfunction is detected by a function that monitors internal operations the meter stops its operation and displays the following error me...

Page 137: ...n 85 RH covering it with sheeting to prevent dust and dirt 2 Moving and transporting When moving or transporting the meter please exercise caution to avoid shocks and vibration to the meter When trans...

Page 138: ...128 11 Product Full View...

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