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Hioki DSM-8104, Instruction Manual

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9.4 Signal Timing ···························································································· 114 

 

10. Maintenance                                                                                                                                     

 

10.1 Periodical Checks for Maintenance·························································· 116 
10.2 Calibration······························································································· 116 
10.2.1 Equipment needed for calibration ························································· 116 
10.2.2 Calibration of measuring voltage ·························································· 116 
10.2.3 Calibration of current measurement ······················································ 116 
10.3 Self-calibration Function ·········································································· 117 
10.4 Self-diagnosis Function ··········································································· 118 
10.5 Service Organization of HIOKI································································· 119 
10.6 Storage and Moving ················································································ 119 

 

11. Product Full View······················································································· 120 

Summary of Contents for DSM-8104

Page 1: ...DIGITAL SUPER INSTRUCTION MANUAL DSM 8104 April 2013 Revised edition 1 DS8104A981 01 13 04H MEGOHMMETER...

Page 2: ......

Page 3: ...eloped to measure insulating materials of a high resistance value capable of measuring resistance within the range of 1 x 103 to 3 x 1016 and a current within the range of 30fA to 10mA The meter is su...

Page 4: ...described in this manual under the following headings Strictly follow these precautions and operational instructions Warning Indicates a potentially hazardous situation that could result in an electr...

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: ...bustible 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 gr...

Page 7: ...self 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 5 2...

Page 8: ...5 2 3 Deviation display 43 5 2 4 Creating histogram 44 6 Measurement 6 1 Functions of and Connecting Measuring Terminals 47 6 1 1 Functions of measuring terminals 47 6 1 2 Connecting measuring termina...

Page 9: ...7 13 Status Byte Register 91 7 14 Using Program Message 93 7 15 Standard Event Status Register 96 7 16 Error Register 98 7 17 Device Event Status Register 100 7 18 Initialization Value by RST Message...

Page 10: ...116 10 2 1 Equipment needed for calibration 116 10 2 2 Calibration of measuring voltage 116 10 2 3 Calibration of current measurement 116 10 3 Self calibration Function 117 10 4 Self diagnosis Functi...

Page 11: ...nual 1 This manual If any damage 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...

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: ...300ms 2 Temperature range 23 5 C humidity 85 RH or less 3 Mode Self calibration automatically executed at 1 minute interval 4 Averaging process On Remarks The resistance measurement accuracy greatly...

Page 14: ...OFF by a setting 2 Current setting errors are 10 2 2 Functional Specification 2 2 1 Measuring time Item Setting Range Delay Time 0 9999 ms Averaging Cycles Auto setting Sampling time setting power pe...

Page 15: ...limit comparison HI GO Measured value upper limit value Intermediate comparison IN GO Upper limit value measured value lower limit value Lower limit comparison LO GO Upper limit value measured value C...

Page 16: ...cter size Measured result 4 x 2 size Measuring conditions Full size Bar graph display 2 High voltage warning display Red LED lit if higher than about 30V 2 2 10 Resume function When the power supply g...

Page 17: ...ement end measurement computing end troubles that have occurred Electrical specification Contact input and output by a photocoupler Connector product No is 57RE 40360 730B DDK 2 3 General Specificatio...

Page 18: ...er SME 8310 With changeover switch for surface and volume measurement and interlock Electrode for planar sample 19 6 diameter SME 8311 Same as above Weight electrode SME 8320 For surface and volume re...

Page 19: ...capable of outputting 1000V 10mA and 250V 50mA maximum supplying stable measuring voltage The measuring voltage source of this meter can set a large maximum output current so that measuring time can...

Page 20: ...10 3 2 Block Diagram...

Page 21: ...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 22: ...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 23: ...on to display measured results measuring conditions and various setting screens 12 INPUT connector The connector for measurement input The connector of a double structure comprising a center conductor...

Page 24: ...on 21 HANDLER connector The connector for handler connection 22 INTERLOCK connector The input connector for connection of signals from a fixture when an interlock function is used 23 EXT TRIGGER conne...

Page 25: ...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 26: ...check The key to execute once a contact check When in the Numeric Input mode the key will become a BS back space key to delete characters that are input MOD 4 Deviation Measuring mode The key to move...

Page 27: ...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 28: ...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 29: ...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 30: ...nt thanks to the 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...

Page 31: ...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 32: ...ng for key input Waiting for key input display Waiting for key input Waiting for key input Waiting for key input Waiting for key input Waiting for key input Waiting for key input Waiting for key input...

Page 33: ...OCK INTERLOCK BUF FULL CHARGE ON OPEN SET MEAS COND SHIFT INT TRIG MAN EXT COMP ON V CHK ON C CHK ON Regular Measurement screen Function key display Press the MONI key for changeover Sequential Measur...

Page 34: ...y during Auto Range will mean that the value is beyond the measurable range Table 5 3 Meanings of Side Marks Panel Character Side Mark Status REMOTE In external remote mode KEY LOCK In key lock mode I...

Page 35: ...tting erase a numeric value by pressing the BS key and press the ENTER key to return to data before the setting The functions keys corresponding to each setting item will be the scroll keys F2 F3 for...

Page 36: ...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 OFF F2 DOWN F3 UP F4 ON F5 OFF DCHG1 Discharging time Be...

Page 37: ...ressing the ENTER key Move to the setting screen operating setting and function keys Cannot measure on this screen Fig 5 4 Key Operation and Screen Change Table 5 5 Setting keys and function keys for...

Page 38: ...rrent measurement A Surface resistivity measurement Rs Volume resistivity measurement Rv Notice The actual unit for surface resistivity measurement is The actual unit for volume resistivity measuremen...

Page 39: ...e contact for protection of the relay contact This procedure is also repeated when changing the CHARGE terminal for precharging Protective resistance value measuring voltage maximum permissible curren...

Page 40: ...ing on the filter response time Select the high speed changeover mode with the filter turned off in measurement that requires fast changeover of measuring voltage The low noise mode with the filter tu...

Page 41: ...ling time Stable high sensitivity current measurement is sometimes disabled due to impacts of noise components contained in the input current This meter performs A D conversion after integrating the i...

Page 42: ...the F5 PSET key to set the Measuring Condition Setting screen On the Measuring Condition Setting screen the F4 and F5 keys change to keys that select ON and OFF respectively b Move to AVE operating t...

Page 43: ...under the same conditions 1 Discharge 1 Set a discharging time before impressing voltage 2 Charge Set a time for impressing voltage before starting measurement 3 Measurement Set a time for measuremen...

Page 44: ...program to be created 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 DISC...

Page 45: ...P and F5 END In the absence of data in the data buffer none will be displayed The content in the data buffer will be 0 0000E 00 in the resistance measuring mode includes volume and surface resistiviti...

Page 46: ...is useful such as when analyzing data after taking measurement Measurement can be performed relatively quickly if data is fetched collectively after finishing all measurements since fetching of data f...

Page 47: ...EXEC Select an item to be set by operating the and keys After finishing settings press the ENTER key to return to the Measurement screen 2 AUTO MODE setting This function executes self calibration se...

Page 48: ...t 2s when auto execute is on 2 Auto self calibration cannot be performed even when auto execute is set to ON if sequential measurement is ON 5 1 12 Setting other items The following items are set Inte...

Page 49: ...f open circuited high level input When disabled the START key will be disabled and a side mark will light up in the INTERLOCK display on the left of the LCD screen CUTOFF Disables the interlock functi...

Page 50: ...en to display measured results and measuring conditions As shown in Fig 5 3 the Measured Value Display screen is split into the Regular Measurement screen and Sequential Measurement Monitoring screen...

Page 51: ...s The following menu is displayed for the function keys Functions UNIT EXP FIG Measured value is displayed in unit F1 UNIT UNIT Measured value is displayed in EXPONEN F2 EXP EXPONENT Number of display...

Page 52: ...mode by keying the and keys Select HI IN or LO Setting of UPPER or LOWER sets the input status of the numeric keys Input a numeric value to be input Refer to 1 and 2 in the following Press the ENTER k...

Page 53: ...n flashes if the decision result of a comparison measurement is NG If beep tone output is set a beep tone will be emitted as a decision result and the decision result will be output to the connector o...

Page 54: ...external trigger and sequential measurement This function cannot be used in the Internal Trigger mode 1 Press the DATA MEASURED RESULT DATA key Pressing the key changes the screen to the screen to sel...

Page 55: ...he position desired to change and input a new value The setting in that position will be changed Press the ENTER key to set the input threshold When setting is finished press the ENTER key to return t...

Page 56: ...ntity larger than Threshold 1 the number shown in 2 represents a data quantity between Thresholds 2 and 1 and similarly the numbers shown in represents data group quantities smaller than Threshold 9 T...

Page 57: ...grounding terminal for reducing impacts of noise and hazard of an electrical shock Normally connected to the OUTPUT terminal or GUARD terminal by a short bar OUTPUT A measuring voltage output termina...

Page 58: ...inal voltage must be impressed to the terminal on the grounding side when insulation resistance insulation resistance to the earth of a sample a part or circuit whose one wire is grounded such as a li...

Page 59: ...part or material and by providing a guard the same potential is obtained between the guard circuit and ground if the GUARD terminal is connected to the GROUND terminal Warning Connecting the GUARD ter...

Page 60: ...insulation resistance is measured by measuring a current that flows through a sample and flows from one terminal to a terminal on the other side and by converting the current into a resistance value...

Page 61: ...ed by the equivalent circuit shown in Fig 6 4 a without a guard The equivalent circuit shows that Current i1 flowing through the sample and current i2 that flows through Insulating Materials a and b b...

Page 62: ...ults can be set b Output a trigger pulse on timing to change a sample and input the pulse to the EXT TRIGGER connector or the HANDLER connector on the rear panel of the meter In this event the meter s...

Page 63: ...an be shortened and measurement accuracy can be enhanced by taking measurement after charging a sample in advance when automatically measuring a sample of a large electrostatic capacity such as a capa...

Page 64: ...ly 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 insulating material so that a long time is need...

Page 65: ...evices 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 and str...

Page 66: ...ances 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 resistivi...

Page 67: ...g 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 electrodes to be used in...

Page 68: ...ode diameter t Specified value of sample thickness If D1 26 D2 38 If D1 50 D2 70 If D1 70 D2 90 If D1 76 D2 88 Press the ENTER key after finishing setting The screen will return to the measurement scr...

Page 69: ...in 6 2 Measuring Parts and Circuits 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 lid of...

Page 70: ...and a side mark will light up by INTERLOCK 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...

Page 71: ...sistivity Set an electrode constant as follows On the screen illustrated in Fig 6 6 press the F5 ACTL key The screen will change to the Electrode Constant Setting screen illustrated in Fig 6 10 Input...

Page 72: ...Be sue to use a shielded conductor cable as the measuring lead connected to the INPUT terminal to prevent induced troubles such as noise and connect the shielded conductor to the GUARD terminal Conne...

Page 73: ...ecessary by operating the panel keys or by issuing commands through interfaces Notice Measurement and data output will be made as in normal operation even if a decision of voltage check is NG However...

Page 74: ...reen referring to 4 5 Display Screen and 5 1 1 Screen types Select on the screen whether to execute not execute contact check during measurement Selection made for contact checks will be indicated by...

Page 75: ...capacity value of the measuring system 3 Setting decision capacity reference value A minimum capacity value of a sample is set operating the numeric keys 0 5 to 99 9 The minimum capacity value is 1 10...

Page 76: ...ses 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 handshake Al...

Page 77: ...output bit0 Voltage check NG Result of auto execution bit1 Contact check NG Result of auto execution bit2 Overrange If status is 0 results are normal in all events Comparison result 0 HI Measured val...

Page 78: ...the following formats NR1 NR2 NR3 any ASCII character string format and binary format with a specified length See Table 7 3 List of Program Messages when deciding which format will be used NR1 format...

Page 79: ...wing three delimiters by the DLM command EOI Default EOI EOI Note A default will result when the power is turned on 7 5 Listener Function The DSM 8104 accepts program messages in ASCII character strin...

Page 80: ...ers CR LF EOI simultaneously with LF LF EOI simultaneously with LF CR EOI simultaneously with CR EOI simultaneously with last data byte Format of command program message Commands with plural program d...

Page 81: ...ys are disabled except the LOCAL STOP and LCDOF keys Press the LOCAL key to return to the Local mode The LOCAL key is also disabled when the Local Lockout LLO command is executed by an interface The S...

Page 82: ...72 Syntax Chart Fig 7 1 Message Syntax Chart...

Page 83: ...73 Command program header Fig 7 2 Program Header Syntax Chart...

Page 84: ...74 NRf format Fig 7 3 Syntax Chart of Data Part...

Page 85: ...data format designation d1 Format designation 0 3 0 Basic format Default 1 Measured values only output 2 Comparison results only output 3 No data output Returns to default when power is turned on Form...

Page 86: ...0 1 0 OFF Lamp extinguished 1 ON Lamp lit Corresponds to LCDOF key Format DCD d1 d1 NR1 format Query response in LCD display mode is same as setting Format LCD Response d1 Setting number of effective...

Page 87: ...it set values d1 Unit 0 1 0 PLC 1 ms d2 Set value PLC 1 15 ms 2 300 Format SPL d1 d2 d1 NR1 format d2 NR1 format Query response on setting number of integral time unit set value is same as setting For...

Page 88: ...Format Measuring voltage setting d1 Voltage 0 1 1000 0 V Format IVS d1 d1 NR2 format Query response of measuring voltage is same as setting 11 Format IVS Response d1 Measuring power source setting d1...

Page 89: ...at DEV Response d1 d2 Electrode data setting d1 SIZE ACTL selection 0 ACTUAL 1 SIZE d2 Electrode inside diameter SIZE 0 0 999 9mm d3 Electrode outside diameter SIZE 0 1 1199 9mm d4 Sample thickness SI...

Page 90: ...ng Capacity of work for open correction value calculation d1 0 5 99 9 pF Format WCP d1 d1 NR2 format Query response of work capacity is same as setting Format WCP Response d1 Executes open correction...

Page 91: ...rnal Trigger mode Needs not be used in manual trigger external trigger and sequential measurement Format RDT d1 d1 NR1 format Response See 7 3 Comparison Measuring mode setting d1 Comparison execute 0...

Page 92: ...NR2 format d4 NR2 format d5 NR2 format d6 NR2 format Same as set items of query SEQ command message in sequential mode Returns current set data d1 Mode 0 1 d2 Program No 0 9 d3 Discharging time before...

Page 93: ...2d d3 d4 d5 d6 d7 d8 d9 Histogram counter readout Returns count values of bar graphs divided into ten and displayed on the screen as responses d1 to d2 are output in order of large threshold Format RH...

Page 94: ...on current range calibration setting d1 Auto self calibration done and not done 0 1 0 OFF 1 ON d2 Auto self calibration interval time 10 9999s Format ACL d1 d2 d1 NR1 format d2 NR1 format Query respon...

Page 95: ...he device event status enable register d1 0 255 See Fig 7 8 and Table 7 8 Note Data will be cleared simultaneously with response output Format DSR Response d1 NR1 format Environmental data save d1 Env...

Page 96: ...Status register clear See Fig 7 5 Format CLS Sets the service request enable register d1 0 255 See Fig 7 5 and Table 7 5 Format SRE d1 d1 NR1 format Query of data in the service request enable registe...

Page 97: ...pment inspection at the factory Shuts down if in start state Format RST Sets OPC bit of the standard event status register after all operations being executed are finished This command is used for det...

Page 98: ...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 return VCK...

Page 99: ...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 100: ...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 101: ...ter Device event status register Error register Sets Service Request Enable register Queries Service Request Enable register Queries Status Byte Register ERR ERROR RQS Request Service MSS Master Summa...

Page 102: ...are set to enable has been set RQS is cleared by SR function status byte read during serial polling but MSS is not cleared Standard event has occurred One of the bits of the standard event status regi...

Page 103: ...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 104: ...ommands 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 s...

Page 105: ...n continually executing commands When executing commands that have response data send the commands in one line by separating them by as shown earlier 3 Necessity for detection of end of command proces...

Page 106: ...er Sets the Standard Event Status Enable register Queries the Standard Event Status Enable register Queries and clears the Standard Event Status register Standard Event Standard Register Standard Even...

Page 107: ...will be ignored in execution Execution error A received message cannot be executed at present or a set parameter value is outside the range These are errors grouped in DRE and CNE bits of the Error r...

Page 108: ...ing registers Status Byte register Standard Event Status register Device Event Status register Error register Queries and clears the Error register MLE Message Length Error HDE Header Error DFE Data F...

Page 109: ...of parameters has exceeded a specified number There are parameters that cannot be recognized Reset by reading this register Data range error Set when a parameter value is outside specified range Rese...

Page 110: ...ent Status register Device Event Status register Error register Sets Device Event Status Enable register Queries Device Event Status Enable register Queries Device Event Status register Device Event S...

Page 111: ...ter Measured data buffer full Set when the measured data buffer becomes full Reset when the buffer becomes empty Measurement stop event Set by one of the following factors The STOP key is pressed The...

Page 112: ...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 113: ...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 114: ...Nos and Signal Names Pin No Signal Name Function Remarks Reception carrier detection Not used with DSM 8104 Reception data Transmission data Data terminal ready Signal ground Data setting ready Not u...

Page 115: ...he 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 command message without a response A suitable time must be co...

Page 116: ...state from a remote state Table 8 3 Invalid Messages Mnemonic Description OPC bit setting when processing ends 1 is returned when operation completes Sending a command message requesting a response in...

Page 117: ...GGER Input V CHECK Input C CHECK Input OPEN Input START Input STOP Input INTERLOCK Input KEYLOCK Input V CHECK GO Output C CHECK GO Output OPEN GO Output COMP GO Output EOM Output INDEX Output SRT E O...

Page 118: ...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 119: ...ut for acceptable non acceptable decision in comparison measurement Output becomes active when decision is acceptable as measurement result EOM Output signal to indicate that measured data can be outp...

Page 120: ...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 121: ...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 122: ...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 123: ...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 124: ...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 125: ...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 126: ...esistance value 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 v...

Page 127: ...asuring voltage of 1V The relationship between the reference resistance and current measuring range is shown below Measuring Voltage Reference Resistance Current Range HOLD1 HOLD2 HOLD3 HOLD4 HOLD5 HO...

Page 128: ...y a function that monitors internal operations the meter stops its operation and displays the following error message screen In this case a component of the meter is faulty Please contact the HIOKI sa...

Page 129: ...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 130: ...120 11 Product Full View...

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