ABM-4082
5
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2
Digit Multimeter
USER`S MANUAL
www.tmatlantic.com
Страница 1: ...ABM 4082 51 2 Digit Multimeter USER S MANUAL www tmatlantic com...
Страница 2: ...ected to mains This equipment is POLLUTION DEGREE 2 INDOOR USE product Safety Precautions Users of this product must be protected from electric shock at all times The responsible body must ensure that...
Страница 3: ...test or power line earth ground Always make measurements with dry hands while standing on a dry insulated surface capable of withstanding the voltage being measured The instrument and accessories must...
Страница 4: ...e 16 2 6 3 High Energy Circuit Safety Precautions 16 2 6 4 Power on Defaults 17 2 6 5 Warm up time 19 2 7 Display 19 Chapter 3 Basic Measurements 20 3 1 Preparation 20 3 2 Measuring Voltage 20 3 2 1 C...
Страница 5: ...4 4 2 Setting Limit Values 42 4 5 System Operations 43 4 5 1 Beeper Control 43 4 5 2 Save Settings 43 4 5 3 Restore Settings 44 4 5 4 Display Control 44 4 5 5 Key Sound 45 4 5 6 Self test 45 4 5 7 Cal...
Страница 6: ...Command Structure 58 6 2 4 Multiple Command Rules 59 6 2 5 Command Path Rules 59 6 3 Command Reference 59 6 3 1 SCPI Signal Oriented Measurement Commands 59 6 3 2 DISPlay subsystem 62 6 3 3 CALCulate...
Страница 7: ...Two and four wire resistance from 1m to 120M Frequency from 5Hz to 1MHz Some additional capabilities of Model DMM Full range of functions In addition to those listed above The DMM functions include p...
Страница 8: ...ating instructions Such damage may invalidate the warranty 1 5 Incoming Inspection The DMM was carefully inspected mechanically and electrically before shipment After unpacking all items from the ship...
Страница 9: ...we will at our option either repair or replace any product that proves to be defective 1 7 Limitation of Warranty This warranty does not apply to defects resulting from product modification without o...
Страница 10: ...that should be reviewed before operating the instrument Figure 2 1 DMM Front Panel 1 Measurement function keys shifted and unshifted Select measurement function DC voltage and current AC voltage and...
Страница 11: ...Fast Shift Set measurement speed to Medium Shift Auto Set measurement speed to Slow 5 Trig Hold Key Trig Trigger a measurement from the front panel Shift Trig Hold a stable reading on the display when...
Страница 12: ...MENU 1 SET M 2 SET B 3 PERCENT 4 dB REF 5 dBm REF 6 LIMIT TEST 7 HIGH LIMIT 8 LOW LIMITT 9 LIMIT BEEP 1 SET M Set the scale factor M for MX B function 2 SET B Set the offset factor B for MX B functio...
Страница 13: ...Set the GPIB bus address 0 to 31 2 INTERFACE Select one between GPIB and USB as the remote control interface 3 BAUD RATE Select the baud rate for RS232C USB operation 4 PARITY Select the parity mode...
Страница 14: ...Messages Displayed During Menu Operation MESSAGES DESCRIPTION CHANGE SAVED The change made on the parameter level is saved This message will be displayed after you press Auto ENTER to execute the com...
Страница 15: ...Chassis Grounding terminal 2 Power Line Fuse Holder Assembly DMM can be configured for line voltage of 110 220V 10 AC at line frequency of 50 60Hz 5 Power line fuse is used for instrument protection 2...
Страница 16: ...2 6 2 Power up Sequence On power up Model DMM performs self tests on its EPROM and RAM and lights all segments and annunciators for about 1 second If a failure is detected the instrument momentarily d...
Страница 17: ...e and make measurements without disconnecting the multimeter 5 De energize the circuit using the installed connect disconnect device 6 Disconnect the test leads from the circuit under test WARNING The...
Страница 18: ...Rate DC Diode test Digits Range Rate Frequency and Period Digits Range Relative Value Rate Function GPIB Address Language Limits Beeper High limit Low limit mX b Scale factor Offset Percent Reference...
Страница 19: ...erage Auto Off 0 0 Medium 10PLC Medium 1 PLC 2 6 5 Warm up time Model DMM is ready for use as soon as the power up sequence has completed However to achieve rated accuracy and stability allow the inst...
Страница 20: ...Voltage Voltage ranges 100mV 1V 10V 100V 1000V 750VAC Maximum resolution 1 V on 100mV range AC technique true RMS ac coupled 3 2 1 Connections Assuming Model DMM is under factory default conditions th...
Страница 21: ...by the crest factor of the waveform the ratio of the peak value to the RMS value Table 3 1 lists the fundamental frequencies at which the corresponding crest factor must be taken into account for accu...
Страница 22: ...elect a measurement range consistent with expected current 4 Connect test leads to the source as shown in Figure 3 2 CAUTION Do not apply more than 2A between INPUT LO and SENSE LO terminals or the pr...
Страница 23: ...range 3 4 1 Connections Assuming Model DMM is under factory default conditions the basic procedure is as follows 1 Connect test leads to the Model DMM as follows A For 2 wire connect the test leads t...
Страница 24: ...he instrument electrically 3 5 Measuring Frequency and Period Model DMM frequency measurement range 5Hz to more than 1MHz Model DMM period measurement range 0 2s to less than 1 s Input signal range 10...
Страница 25: ...before making frequency measurements 3 5 2 Gate Time Gate time is the amount of time Model DMM uses to sample frequency or period readings All settings of the RATE function Fast Med and Slow yield a g...
Страница 26: ...re 3 5 4 Take a reading from the display Note Source current flows from the INPUT HI to INPUT LO terminals Figure 3 5 Continuity Measurement 3 6 2 Threshold resistance level You can define a threshold...
Страница 27: ...3 Connect test leads to the diode under test as shown in Figure 3 6 4 Take a reading from the display Note Source current flows from the INPUT HI to INPUT LO terminals Figure 3 6 Diode Measurement 3...
Страница 28: ...ill be displayed M 1 00000 2 Use the and keys to choose a numerical place and use and keys to increment or decrement the digits Enter a value and units prefix 3 Press Auto ENTER to confirm the M value...
Страница 29: ...user entered constant Percent is the displayed result To configure the percent calculation perform the following steps 1 Press Shift Rel for percent math operation and the present reference value disp...
Страница 30: ...x 3 Press Auto ENTER to confirm the reference voltage the message CHANGE SAVED will be displayed for a moment DMM returns back to the measurement status 4 DMM will display the result of the dB calcula...
Страница 31: ...play the result of the dBm calculation If you want to change the impedance reference value after the dBm function is enabled you can take actions as below 1 Press Shift to enter the command level 5 dB...
Страница 32: ...riate range for each measurement However you can use manual ranging for faster measurements since the multimeter doesn t have to determine which range to use for each measurement The multimeter return...
Страница 33: ...ves up a level to the command level 7 Use to move across to the filter type command on the command level 3 FILT TYPE will be displayed 8 Press to move down a level to the filter type parameter choice...
Страница 34: ...filter parameters have speed and accuracy tradeoffs for the time needed to display store or output a filtered reading These affect the number of reading conversions for speed versus accuracy and resp...
Страница 35: ...sured The integration time affects the usable digits the amount of reading noise as well as the ultimate rading rate of the instrument The integration time is specified in parameters based on a number...
Страница 36: ...d feature 4 2 1 Trigger model The flowchart of Figure 4 2 summarizes triggering process of the instrument It is called a trigger model because it is modeled after the SCPI commands used to control tri...
Страница 37: ...100 3ms 1k 3ms 10k 13ms 100k 25ms 1M 100ms 10M 150ms 100M 250ms Continuity 1k 3ms Diode testing 1mA 1ms 100uA 1ms 10uA 1ms Take steps below for delay settings 1 Press Shift to enter the menu on the me...
Страница 38: ...conversions to yield a single filtered reading Only one reading conversion is performed if the filter is disabled or after the specified number of reading conversions for a moving average filter is re...
Страница 39: ...to choose a numerical place and use and keys to increment or decrement the digits Enter a value of count from 2 to 100 11 Press Auto ENTER to confirm the count The message CHANGE SAVED will be display...
Страница 40: ...RDGS STORE function 6 Use or key to set reading store function to ON or OFF 7 Press Auto ENTER to confirm the ON OFF selection The message CHANGE SAVED will be displayed to show that the change is now...
Страница 41: ...ed to calculation the mean is Where is a stored reading n is the number of stored readings The STD value is the standard deviation of the buffered readings The equation used to calculate the standard...
Страница 42: ...ENU on the menu level B MATH MENU will be displayed 3 Press to move down to the command level within the MATH MENU 1 SET M will be displayed 4 Use or key to move across to the HIGH LIMIT command 7 HIG...
Страница 43: ...has been off or after a reset The beeper is enabled when the multimeter is shipped from the factory Use the following steps to change the beeper s state 1 Press Shift to enter the menu on the menu lev...
Страница 44: ...the menu level A MEAS MENU will be displayed 2 Use or key to move across to the SYS MENU on the menu level D SYS MENU will be displayed 3 Press to move down to the command level within the SYS MENU 1...
Страница 45: ...r has been off or after a reset Use following steps for key sound setting 1 Press Shift to enter the menu on the menu level A MEAS MENU will be displayed 2 Use or key to move across to the SYS MENU on...
Страница 46: ...view the calibration date to view the number of times calibration has been performed and to perform calibration Some of the items are password protected to prevent accidental or unauthorized calibrati...
Страница 47: ...terface selection is stored in non volatile memory It does not change when power has been off or after a remote interface reset 5 1 1 USB You can operate the USB device interface as if it s a RS232 in...
Страница 48: ...ERFACE command 2 INTERFACE will be displayed 5 Press to move down a level to select an interface 6 Use or key to select GPIB interface 7 Press Auto ENTER to confirm the selection The message CHANGE SA...
Страница 49: ...n Table 5 2 Table 5 2 Signal Definition for 9 Pin Connector Function Code 9 Pin Connector Pin Number Transmitted Data TXD 3 Received Data RXD 2 Signal Ground Common GND 5 Figure 5 1 shows the rear pan...
Страница 50: ...dd parity Each program message that is transmitted to the controller is terminated with LF CR or LF CR 5 2 3 Selecting Baud Rate The baud rate is the rate at which Model DMM multimeter and the compute...
Страница 51: ...ress to move down to the command level within the I O MENU 1 GPIB ADDR will be displayed 4 Use or key to move across to the PARITY command 4 PARITY will be displayed 5 Press to move down a level to se...
Страница 52: ...nd RTS are not used by DMM the multimeter uses the character return method to decrease the data losses and errors during communication Please refer to the content below before programming communicatio...
Страница 53: ...d the next command being lost when DMM is executing the former command Please refer to Chapter 8 for serial interface program examples 5 3 GPIB interface operation This section contains information ab...
Страница 54: ...3 3 GPIB Addressing Model DMM multimeter ships from the factory with a GPIB address of 8 You can set the address to a value of 0 to 30 and the address is saved in the non volatile memory Do not assign...
Страница 55: ...meter REM REMOTE 8 Goes into effect when next addressed to listen IFC ABORT 8 Goes into talker and listener idle states LLO LOCAL LOCKOUT LOCAL keys locked out GTL LOCAL 8 Cancel remote Restore front...
Страница 56: ...level commands are legal only when the subsystem commands have been selected A colon is used to separate the higher level commands and the lower level commands See Figure 6 1 for a sample SENSe RESis...
Страница 57: ...oolean Used to enable or disable an instrument operation 0 or OFF disables the operation and 1 or ON enables the operation Example CURRent AC RANGe AUTO ON Enable autoranging name Name parameter Selec...
Страница 58: ...a consonant retain it but drop all the letters after it Example format form If the command contains a question mark query or a non optional number included in the command word you must include it in...
Страница 59: ...begin with the root command unless it is optional e g SENSe If the root is optional simply treat a command word on the next level as the root The colon at the beginning of a program message is optiona...
Страница 60: ...esting CONTinuity Continuity test Description This command combines all of the other signal oriented measurement commands to perform a one shot measurement and acquire the reading When this command is...
Страница 61: ...selected All controls related to the selected function are defaulted to the RST values Continuous initiation is disabled The control source of the Trigger Model is set to Immediate The count values of...
Страница 62: ...tarts at the beginning of the Trigger Model If the instrument is in the idle state INITiate takes the instrument out of the idle state If continuous initiation is enabled INITiate CONTinuous ON then t...
Страница 63: ...ble front panel display circuitry When disabled the instrument operates at a higher speed While disabled the display is frozen All front panel controls except LOCAL are disabled Normal display operati...
Страница 64: ...get value for PERCent calculation 100e6 100e6 Use input signal as target value Query percent Enable or disable KMATh calculation Query state of KMATh calculation Read result of KMATh calculation Subsy...
Страница 65: ...med With MXB or PERCent selected and enabled the result of the calculation is displayed The calculated reading is refreshed every time the instrument takes a reading KMATh Commands MMFactor NRf Comman...
Страница 66: ...nt calculation STATe b Command syntax CALCulate 1 STATe b Command Parameter b 0 or OFF Disable CALC1 calculation 1 or ON Enable CALC1 calculation Query STATe Query state ON or OFF of CALC1 Description...
Страница 67: ...d Parameter NRf 2 to 512 Specify buffer size Query POINts Query buffer size Description This command is used to specify the buffer size for readings saving DATA Command syntax CALCulate2 TRACe DATA De...
Страница 68: ...his command is used to enable or disable the CALC2 calculation When enabled the selected CALC2 format will be calculated when the IMMediate or IMMediate Command is executed DATA Command syntax CALCula...
Страница 69: ...DCV is 1V on all measurement ranges STATe b Command syntax CALCulate3 LIMit 1 STATe b Command Parameter b 0 or OFF Disable limit test 1 or ON Enable limit test Query STATe Query state on or off of li...
Страница 70: ...t Enable or disable HOLD Query state of HOLD VOLT DC 1 5 OFF CURRent AC NPLCycles n NPLCycles RANGe UPPer n UPPer AUTO b AUTO REFerence n STATe b STATe ACQuire REFerence AVERage TCONtrol name TCONtrol...
Страница 71: ...Query filter type Specify filter count 1 to 100 Query filter count Enable or disable filter Query state of digital filter 1 10 ON 0 OFF 5 OFF VOLTage AC NPLCycles n NPLCycles RANGe UPPer n UPPer AUTO...
Страница 72: ...at Query filter type Specify filter count 1 100 Query filter count Enable or disable filter Query state of digital filter 1 1000 ON 0 OFF 5 OFF RESistance NPLCycles n NPLCycles RANGe UPPer n UPPer AUT...
Страница 73: ...lter type MOVing REPeat Query filter type Specify filter count 1 to 100 Query filter count Enable or disable filter Query state of digital filter 1 100e6 ON 0 OFF 5 OFF FREQuency THReshold VOLTage RAN...
Страница 74: ...AC Select AC Current CURRent DC Select DC Current RESistance Select 2 wire Resistance FRESistance Select 4 wire Resistance FREQuency Select Frequency PERiod Select Period DIODe Select Diode Testing C...
Страница 75: ...played on the CRT as follows 1 000000E 01 Notice that the measurement function is not included in the response message Thus you may want to perform a function query after a reading query HOLD Command...
Страница 76: ...cles n Set NPLC for DCV SENSe 1 RESistance NPLCycles n Set NPLC for 2 SENSe 1 FRESistance NPLCycles n Set NPLC for 4 Command Parameter n 0 1 to 10 Set power line cycles per integration DEFault 1 MINim...
Страница 77: ...e of the current functon Description This command is used to manually select the measurement range for the specified measurement function The range is selected by specifying the expected reading as an...
Страница 78: ...erence n Specify reference for 2 SENSe 1 FRESistance REFerence n Specify reference for 4 SENSe 1 FREQuency REFerence n Specify reference for FREQ SENSe 1 PERiod REFerence n Specify reference for PER C...
Страница 79: ...Reference for the specified function When enabled the displayed reading will include the programmed reference value When disabled the displayed reading will not include the reference value ACQuire Com...
Страница 80: ...Command parameter b 1 or ON Enable the digital filter 0 or OFF Disable the digital filter Query STATe Query state of digital filter Description These commands are used to enable or disable the digita...
Страница 81: ...Nt Query filter count Description These commands are used to specify the filter count In general the filter count is the number of readings that are acquired and stored in the filter buffer for the av...
Страница 82: ...scription There are three current ranges available for the diode test 10 A range 100 A range and 1mA range Range is selected by using this command to specify one of the above current range for the dio...
Страница 83: ...timeter out of remote and restore operation of front panel RS232 only ON ON PRESet Command PRESet Command Syntax SYSTem PRESet Description This command returns the instrument to factory defaults state...
Страница 84: ...or OFF Disable beeper Query STATe Query state of beeper Description This command is used to enable or disable the beeper for limit tests RS 232 Interface Commands LOCal Command syntax SYSTem LOCal Des...
Страница 85: ...dance Query ACV units Select DCV measurement units V DB DBM Path to set DB reference voltage Specify reference in volts 0 to 1000 Query DB reference voltage Path to set DBM reference impedance Specify...
Страница 86: ...x UNIT VOLTage AC DBM IMPedance n Command parameter n 1 9999 Specify reference impedance Query DBM IMPedance Query reference impedance Description This command is used to specify the dBm reference imp...
Страница 87: ...he DB unit is selected DCV dB measurements are made using the specified dB reference level The reference level is specified in volts and is not range dependent For example a dB reference level of 1 is...
Страница 88: ...us initiation Reset trigger system Select control source Query control source Set delay time Enable or disable auto delay Query state of delay Query delay Set measure count Query measure count Specify...
Страница 89: ...ystem commands are used for the instrument settings of trigger mode trigger delay and trigger a measurement SOURce name Command Syntax TRIGger SOURce name Command parameter name IMMediate instrument d...
Страница 90: ...ger count INFinite Set trigger count of infinite MINimum Set trigger count of 1 MAXimum Set trigger count of 9999 Query COUNt Query trigger count Description Specify the trigger count before the multi...
Страница 91: ...e memory 6 3 9 Common Commands Common commands can be used to all equipments We provide some common commands as below RST Command Syntax RST Description Reset the instrument TRG Command Syntax TRG Des...
Страница 92: ...C to 18 C and 28 C to 40 C Relative Humidity Up to 80 for 0 C to 28 C 75 RH for 10M and above ranges of resistance measurement Up to 70 for 28 C to 40 C Displayed Readings and Reading rates Full Scal...
Страница 93: ...1 0 004 0 01 0 004 119 999 1 19999 11 9999 119 999 1010 00 2 Med 100 000mV 1 00000V 10 0000V 100 000V 1000 00V 1 V 10 V 100 V 1mV 10mV 10G 10G 10G 10M 1 10M 1 0 02 0 015 1 0 01 0 008 1 0 01 0 008 0 01...
Страница 94: ...A 10 A 7 0 Rx 10M Rx 7 0 Rx 10M Rx 0 05 0 015 2 0 03 0 008 2 0 03 0 008 2 0 03 0 008 0 03 0 008 0 10 0 008 0 50 0 015 Fast 100 00 1 0000k 10 000k 100 00k 1 0000M 10 000M 100 00M 10m 100m 1 10 100 1k...
Страница 95: ...ed 10 0000mA 100 000mA 1 00000A 10 0000A 0 1 A 1 A 10 A 100 A 11 9999 119 999 1 19999 11 9999 0 05 0 015 2 0 05 0 008 2 0 10 0 008 0 25 0 008 0 15V 10 1 1 5V 10 1 0 3V 0 1 0 15V 10m Fast 10 000mA 100...
Страница 96: ...Open circuit voltage 13 3V DC Test Current around 1mA DC Threshold resistance From 1 to 1000 default of power on is 10 Diode Rate Range Resolution Full Scale Reading Test Current Accuracy 1 year 23 5...
Страница 97: ...00 0 30 0 100 0 30 0 100 2 1 0 0 150 1 0 0 100 1 0 0 100 1 0 0 100 1 0 0 100 1 Med 100 000 mV 1 00000V 10 0000V 100 000V 750 00V 1 50 0 200 1 50 0 150 1 50 0 150 1 50 0 150 1 50 0 150 0 50 0 200 0 50...
Страница 98: ...full scale reading Accuracy Rate Range Accuracy 1 year 1 10 20Hz 20 50Hz 50 2kHz 2 10kHz Slow 10 0000mA 1 00000A 10 0000A 1 0 0 080 1 0 0 080 1 0 0 080 0 50 0 080 0 50 0 080 0 50 0 080 0 25 0 080 0 25...
Страница 99: ...nge Gate Time Resolution Full Scale Reading Accuracy 2 Input Sensitivity Sine Wave 100mV to 750V 1 10 s 1 10 s 10ms 10ms 100ms 100ms 200ms 1 s Slow 0 01ns 0 1ns 0 1 s 1 s 9 99999 9 99999 99 9999 199 9...
Страница 100: ...h Functions Rel Max Min Average StdDev of stored reading dBm dB Limit Test and mX b dBm Reference Resistance 1 to 9999 1 step size default is 75 Standard Programming Languages SCPI Standard Commands f...
Страница 101: ...port unsigned char code int check_stat int port read serial port state 16bit void send_port int port char c send a character to serial port char read_port int port receive a character form serial por...
Страница 102: ...ps else printf nE10 Serial Port Write Echo Error exit 1 send_port PORT n send command end symbol delay 2 while check_stat PORT 256 read_port PORT read string from serial port void string_rd char ps u...
Страница 103: ...h ah 2 int14 function2 read character int86 0x14 r r if r h ah 128 if ah 7 be set mean trans error printf nE01 Serial port read error exit 1 return r h al check the status of serial port int check_st...
Страница 104: ...R 303 Ram self check failed DCV Calibrate Data is lost DCV Short Data is lost ACV Calibrate Data is lost ACV Short Data is lost DCI Calibrate Data is lost DCI open Data is lost ACI Calibrate Data is l...
