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Gossen MetraWatt METRACAL MC, Руководство по эксплуатации

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GMC-I Messtechnik GmbH

Interface Operation

8

Interface Operation

The 

METRACAL MC

 is equipped with an infrared interface for com-

munication with the PC. Commands are optically transferred 
through the instrument housing by means of infrared light to an in-
terface adapter (accessory: 

USB X-TRA

), which is plugged onto the 

METRACAL MC

. The adapter’s USB interface allows connection to 

the PC via an interface cable.

Commands and parameters can be transmitted from the PC to the 

METRACAL MC

. The following functions can be executed:

DMM

• Configuration and read-out of measuring parameters

• Measuring function and measuring range selection

• Start measurement

• Read out stored measured values

Calibrator

• Configuration and read-out of calibration parameters

• Calibration function and measuring range selection

• Start calibration

• Programming of user-specific procedures (interval and ramp 

functions)

8.1

Activating the Interface

The interface is automatically activated for receiving operation 
(

METRACAL MC

 receives data from the PC) as soon as the interface 

is addressed by the PC, assuming that the “

irStb

” parameter 

has been set to “on” (see section 8.2), or the instrument is already 
switched on (the first command wakes up the 

METRACAL MC

, but 

does not yet execute any further commands).

The “continuous transmission” operating mode is selected 
manually as described below. In this operating mode, the 
instrument continuously transmits measurement data to the PC 
via the interface adapter, which can then be displayed with the 
help of a terminal program.

Starting Continuous Transmission Operation with Menu Functions

 

1nFo

 

 

... 

 

SEnd

 

 

StArt

 

 

send

 

 

The 

 symbol blinks at the display indicating interface operation.

Stopping Continuous Transmission Operation with Menu Functions

 

1nFo

 

 

... 

 

SEnd

 

 

send

 

 

 

stop

 

 

 

send

 

 

The 

 symbol is cleared from the display.

Automatic Activation and Deactivation of Transmission Mode Operation

If the sampling rate is 10 seconds or longer, the display is 
switched off automatically between samples in order to prolong 
battery service life. The only exception is when the multimeter is 
set to continuous operation. As soon as an event occurs, the dis-
play is automatically switched back on.

MEAS /CAL

SETUP

OUT

ENTER

OUT

ENTER

MEAS /CAL

SETUP

OUT

ENTER

OUT

ENTER

OUT

ENTER

Содержание METRACAL MC

Страница 1: ...METRACAL MC Multimeter Calibrator Operating Instructions 3 349 566 03 7 2 15 ...

Страница 2: ...rview of Features included 1 For 46 000 measured values sampling rate adjustable from 0 1 second to 9 hours Functions Multimeter Calibrator Simulator V AC Hz TRMS V DC Hz V AC Pulse generator frequency generator A AC Hz TRMS A DC Current sensor current sink Hz A AC Resistance Ω Continuity Diode 6 V Temperature TC Temperature RTD Capacitance Min Max data hold 16 MBit memory 1 Features IR Interface ...

Страница 3: ...heet and operating in structions www gossenmetrawatt com See also section 11 on page 80 Product Support Technical queries use operation software registration If required please contact GMC I Messtechnik GmbH Product Support Hotline Phone 49 911 8602 0 Fax 49 911 8602 709 e mail support gossenmetrawatt com Software Enabling for METRAwin 10 GMC I Messtechnik GmbH Front Office Phone 49 911 8602 111 F...

Страница 4: ...rical quantities D K 15080 01 01 accredited in accordance with DIN EN ISO IEC 17025 2005 Accredited measured quantities direct voltage direct current values DC resistance alternating voltage alternating current values AC active power AC apparent power DC power capacitance frequency and temperature Competent Partner GMC I Messtechnik GmbH is certified in accordance with DIN EN ISO 9001 2008 Our DAk...

Страница 5: ...GMC I Messtechnik GmbH 5 Contact Persons ...

Страница 6: ...5 2 2 Alternating Voltage and Frequency Measurement V AC and Hz 29 5 2 3 Transient Overvoltages 30 5 3 Resistance Measurement Ω 31 5 4 Continuity Test 32 5 5 Diode Testing with Constant Current of 1 mA 33 5 6 Temperature Measurement 34 5 6 1 Measurement with Thermocouples Temp TC 34 5 6 2 Measurement with Resistance Thermometers 35 5 7 Capacitance Measurement 37 5 8 Current Measurement 38 5 8 1 Di...

Страница 7: ...ers 62 7 4 Entering Parameters SETUP Menu 62 7 5 Default Settings 64 8 Interface Operation 66 8 1 Activating the Interface 66 8 2 Configuring Interface Parameters 67 9 Technical Data 68 10 Maintenance and Calibration 76 10 1 Displays Error Messages 76 10 2 Batteries 76 10 3 Fuse 77 10 4 Housing Maintenance 78 10 5 Return and Environmentally Sound Disposal 78 10 6 Recalibration 79 10 7 Manufacturer...

Страница 8: ...ring instrument e g 300 V CAT II Refer to section 11 2 regarding use of the measurement cables Observe the following safety precautions The multimeter may not be used in potentially explosive atmospheres The multimeter may only be operated by persons who are capable of recognizing contact hazards and taking the appropriate safety precautions Contact hazards according to the standard exist anywhere...

Страница 9: ...compartment lid has been removed or if its housing is open The input for the current measuring range is equipped with a fuse link Maximum permissible voltage for the measuring circuit rated voltage of the fuse is 300 V AC DC Use speci fied fuses only see page 73 The fuse must have a breaking capacity of at least 1 5 kA Special Safety Precautions for the Calibrator If necessary use the multimeter s...

Страница 10: ...t unintentional use Safe operation can no longer be relied upon If the device demonstrates visible damage If the instrument no longer functions or if malfunctioning occurs After long periods of storage under unfavorable conditions e g humidity dust or extreme temperature see Ambient Conditions on page 73 1 1 Use for Intended Purpose The multimeter is a portable device which can be held in the hand...

Страница 11: ...ntion observe documentation 1 3 Meanings of Acoustic Warning Signals Warning for dangerous voltage at the measurement input U 33 V AC or U 70 V DC double acoustic signal Warning for excessive current in the 300 mA measuring range 310 mA intermittent acoustic signal Voltage warning 310 V intermittent acoustic signal 2x ...

Страница 12: ...alibrator output 9 Connector jacks for measuring and sensing inputs 10 DATA MIN MAX Key for freezing comparing and deleting the measured value and for the Min Max function Decrease values Operating mode menu Selection of individual menu entries in the direction of flow 11 MEASURE CAL SETUP Key for switching between measuring calibration and menu functions 12 ZERO SEL ESC Key for zero balancing and...

Страница 13: ...l active 16 Continuous operation automatic shutdown deactivated 17 Digital display with decimal point and polarity display 18 RTD selected nickel or platinum resistance thermometer 19 TC temperature measurement with thermocouple types B through U 20 MAN manual measuring range selection active 21 DATA display memory freeze measured value 22 max min Min Max value storage 23 Δ relative measurement wi...

Страница 14: ... with acoustic signal V DC Diode voltage Temp TC C types B U Temperature type K thermocouple Temp RTD C Pt100 1000 C Ni100 1000 Temperature with resistance thermometer nF μF Capacitance mA μA mA DC Direct current value mA μA mA AC TRMS Alternating current amperage AC TRMS Rotary Switch SEL Display Calibration Function Red Printing V V DC Direct voltage simulator Hz Hz Pulse frequency generator Ω 0...

Страница 15: ... 1 on page 8 Continuous doubled or reinforced insulation EC label of conformity s IR t Position of the infrared interface window on the top of the instrument See also section 3 1 regarding location of the power pack adapter socket Fuse for current measuring ranges see section 10 3 This device may not be disposed of with the trash Fur ther information regarding the WEEE mark can be accessed on the ...

Страница 16: ... the key is held depressed all of the segments at the liquid crystal display LCD are illuminated The LCD is depicted on page 13 The instrument is ready for use as soon as the key is released Display Illumination After the instrument has been switched on background illumination can be activated by briefly pressing the ON OFF LIGHT key Illumination is switched back off by once again pressing the sam...

Страница 17: ... activated before a selected period of time in minutes has elapsed see APoFF parameter on page 63 Shutdown is acknowledged with a brief acoustic signal Exceptions Transmission and memory mode operation continuous operation and whenever a dangerous voltage is applied to the input U 33 V AC or U 70 V DC Automatic Shutdown Calibrator The device is switched off automatically after the selected time AP...

Страница 18: ... 270 d 1 d 2699 d 4 1 2 Manual Measuring Range Selection Auto ranging can be deactivated and measuring ranges can be selected manually in accordance with the following table by pressing the MAN AUTO button The desired measuring range can then be selected with the or scroll key The instrument is automatically returned to range selection when the MAN AUTO key is pressed the rotary switch is activate...

Страница 19: ...nts and remains in memory until deleted or until the multimeter is switched off Zero balancing and reference value adjustment can be used for auto ranging as well as for manual measuring range selection Zero Balancing Ð Plug the measuring cables into the instrument and connect the free ends to each other except for capacitance measurement in which case the ends of the cables are not connected to e...

Страница 20: ...he selected unit of measure and current type are displayed as well A minus sign appears to the left of the value during the measurement of zero frequency quantities if the plus pole of the measured quantity is applied to the input Overranging If the upper range limit of 31 000 digits is exceeded 0L overload appears at the display Exceptions 0L appears as of 3100 digits for capacitance measurement ...

Страница 21: ...d Note However when the digital display is frozen the decimal point is fixed as well fixed measuring range symbol MAN The selected measuring range should not be manually changed as long as the DATA function is active The DATA function is deactivated by pressing and holding the DATA MIN MAX key approx 1 second when the measuring func tion is changed or when the instrument is switched off and back o...

Страница 22: ...ation The Min Max function can be activated in all measuring functions Apply the measured quantity to the instrument and set the mea suring range with the MAN AUTO key before activating the Min Max function The Min Max function is deactivated by pressing and holding the DATA MIN MAX key approx 1 second when the measuring func tion is changed or when the instrument is switched off and back on again...

Страница 23: ... 7 4 the rAtE parameter and then start memory mode operation Ð Select the desired measuring function and an appropriate measuring range Ð Check the battery charge level before starting long term measurement recordings see section 7 3 Connect the NA X TRA power pack if applicable Starting Recording via Menu Functions Ð Switch to the SETUP mode by pressing MEAS CAL SETUP and select the StorE menu 1n...

Страница 24: ...s automatically Ending Recording store stop store Ð Press MEAS CAL SETUP in order to return to the measuring function Ð Memory mode operation can also be exited by switching the multimeter off Querying Memory Occupancy Memory occupancy can be queried during recording with the help of the 1nFo menu see also section 7 3 Memory occupancy range 000 1 to 099 9 1nFo bAtt 0CCvP 017 4 Memory occupancy can...

Страница 25: ...GMC I Messtechnik GmbH 25 Control Functions ...

Страница 26: ... 5 1 Switching from the Calibration Function to the Measuring Function If any calibration function is active press and hold the MEASURE CAL SETUP key in order to activate the measuring func tion 0230 6 V AC 0050 0 Hz V Hz MEAS CAL SETUP V CALIBRATOR MULTIMETER Hz 15 000 calib V Long ...

Страница 27: ... Maximum permissible voltage between the connector sockets 9 and 10 and ground 8 is 300 V for measuring category II Be prepared for the occurrence of unexpected voltages at devices under test e g defective devices For example capacitors may be dangerously charged No measurements may be made with this instrument in electrical circuits with corona discharge high voltage Special care is required when...

Страница 28: ...e operator if the measured value exceeds the upper range limit in the 300 V range Make sure that a current measuring range A has not been acti vated when the multimeter is connected for voltage measurement If the fuse s blowing limits are exceeded as a result of operator error both the operator and the instrument are in danger With the rotary switch in the V position the multimeter is always in th...

Страница 29: ... oper ator error both the operator and the instrument are in danger Ð Repeatedly press the multifunction key OUT ENTER until the unit of measure V appears at the display Frequency measurement Ð Connect the measured quantity in the same way as for voltage measurement Ð Manually select the measuring range for the voltage amplitude When the instrument is switched to frequency measurement the previous...

Страница 30: ...ansient overvoltages of up to 8 kV with wave front durations of 1 2 ms and halftimes of 50 μs in the voltage measuring range If longer pulse durations are expected for example when conducting measurements at trans formers or motors we recommend the use of our KS30 measur ing adapter It provides protection against transient overvoltages of up to 6 kV with wave front durations of 10 and halftimes of...

Страница 31: ...ion 5 2 1 regarding testing for the absence of volt age with the help of the direct voltage measurement Ð Set the rotary switch to Ω Ð Connect the device under test as shown Note Use short or shielded measurement cables in the case of high impedance resistance Improving Accuracy by means of Zero Balancing Cable resistance and contact resistance can be eliminated in all measuring ranges by means of...

Страница 32: ...Press the SEL key Ð Connect the conductor path under test as shown Depending upon the selected limit value the multimeter generates a continuous acoustic signal in the case of continuity or short circuiting i e at a value of less than the selected limit value 0L appears at the display in the case of an open connection The limit value can be adjusted in the SET menu see also section 7 4 1nFo SET ti...

Страница 33: ...ect the device under test as shown Attention Observe open circuit voltage of 7 V during diode testing Circuits must be laid out accordingly Forward Direction and Short Circuit The instrument displays forward voltage in volts display 4 places As long as voltage drop does not exceed the maximum display value of 6 V several series connected components or reference diodes can be tested with a small re...

Страница 34: ...dingly displayed Ð The reference temperature is measured at the internal reference junction It is shown in the right hand auxiliary display or else can be queried see parameter 1tEMP in section 7 3 regarding querying Note The internal reference temperature temperature of the internal reference junction is measured by a temperature sensor inside of the instrument This may be somewhat above room tem...

Страница 35: ...TER key automatic compensation of cable resistance is activated for all subsequent measurements The short circuit can now be eliminated and the device is ready for use Entering Cable Resistance Ð Press the ZERO SEL ESC key once again in the automatic compensation menu Ð Enter the known resistance of the connector cables with the scroll keys Select the digit to be changed with the keys and change t...

Страница 36: ...ents MULTIMETER 100 5 C Pt1000 RTD 001 00 Ω short leads Enter cable resistance OUT ENTER ZERO SEL ESC ZERO SEL ESC OUT ENTER 00 4 Ω meas rleads set leads Temp RTD RTD Long Pt100 ZERO SEL ESC MAN AUTO DATA MIN MAX Pt1000 Ni100 Ni1000 OUT ENTER R 50 Ω R 50 Ω RL 0 4 ...

Страница 37: ...ing testing for the absence of voltage with the help of the direct voltage measurement Ð Set the rotary switch to Ð Connect the discharged device under test to the sockets with the measurement cables as shown Note The pole of polarized capacitors must be connected to the jack Resistors and semiconductor paths connected in parallel to the capacitor distort measurement results Improving Accuracy by ...

Страница 38: ...ed voltage of the fuse is 1000 V AC DC Use specified fuses only The fuse must have a breaking capacity of at least 1 5 kA If the fuse for the active current measuring range blows FUSE appears at the digital display and an acoustic signal is generated at the same time If a fuse should blow eliminate the cause of overload before placing the instrument back into service Fuse replacement is described ...

Страница 39: ... supply power to the measuring circuit back on 3 Ð Read the display Make a note of the measured value if the instrument is not being operated in the memory mode or the transmission mode Ð Disconnect supply power from the measuring circuit or the power consumer 1 once again and discharge any capacitors Ð Remove the test probes from the measuring point and return the measuring circuit to its normal ...

Страница 40: ...d with an acoustic signal Ð Safely connect the measuring instrument without contact resistance in series to the power consumer as shown Ð Switch supply power to the measuring circuit back on 3 Ð Read the display Make a note of the measured value if the instrument is not being operated in the memory mode or the transmission mode Ð Disconnect supply power from the measuring circuit or the power cons...

Страница 41: ...llowing menu Cl ip 0FF see also section 7 4 Current Clamp Setup Menu 1nFo SET rAtE CLIP 1 10 100 1000 0ff The maximum allowable operating voltage is equal to the nominal voltage of the current transformer When reading the measured value additional error resulting from the current clamp sensor must also be taken into consideration default setting OFF CLIP Transformer Ratios DMM Measuring Ranges Cla...

Страница 42: ...l ip 0FF see also section 7 4 Current Clamp Setup Menu 1nFo SET rAtE CLIP 1 10 100 1000 0ff The maximum allowable operating voltage is equal to the nominal voltage of the current transformer When reading the measured value additional error resulting from the current clamp sensor must also be taken into consideration default setting OFF Transforma tion Ratios CLIP DMM Measuring Ranges Clamp Types 3...

Страница 43: ...d with at least one of the below listed transformation ratios and that the ratio has been previously selected in the following menu Cl ip 0FF see also section 7 4 Current Clamp Setup Menu 1nFo SET rAtE CLIP 1 10 100 1000 0ff default setting OFF CLIP Transformer Ratios DMM Measuring Ranges Clamp Types 300 mV 3 V 30 V 1 1 1mA 1mA 300 00 mA 3 0000 A 30 000 A 1 10 1mA 10mA 3 0000 A 30 000 A 300 00 A 1...

Страница 44: ...ction to the Calibration Function If any measuring function is active press and hold the MEASURE CAL SETUP key in order to switch the calibration func tion The standby function is automatically activated during switch over 0030 6 V AC 0000 1 Hz V V Hz MEAS CAL SETUP V CALIBRATOR MULTIMETER Hz 0 000 calib V Long V Hz Ω C mA mA ...

Страница 45: ...Voltage Range for the Fixed Value Function Ð Press the ZERO SEL ESC key in order to switch to the select range menu Ð Select the desired voltage range with the keys Acknowledge your selection with OUT ENTER The display is switched to the voltage value entry window but the selected voltage range still appears in the auxiliary display Selecting the Voltage Range for the Interval or Ramp Function Ð P...

Страница 46: ...ENTER The display is switched to the frequency entry window but the selected voltage am plitude still appears in the auxiliary display Ð Set frequency 1 2000 Hz ON indicates Voltage is applied directly to the output using the se lected frequency Select the digit to be changed with the keys and change the respectively selected digit with the keys Ð The output can be activated with the OUT ENTER key...

Страница 47: ...t the respective function with OUT ENTER Abbreviated Instructions Select the calibration function Change the fixed value 0000 0Ω Activate output Note The following error messages are possible HiCurr high current current value to high where I 4 5 mA and LoCurr low current current too low or reversed polarity where I 40 μA corresponds to unconnected sockets No external voltage may be applied to the ...

Страница 48: ... again Selecting Resistance Temperature Detector RTD or Thermocouple TC for Fixed Value Interval or Ramp Function Ð Switch to the fixed value interval or ramp function menu by pressing the ZERO SEL ESC key Ð Select the select sensor menu with the keys Ð Select the desired sensor with the keys Acknowledge your selection with OUT ENTER The display is switched to the window for temperature value entr...

Страница 49: ...s under test with non continuous measuring current e g scanned measuring inputs result in erroneous measured values if measurement is started before response time has elapsed The calibrator cannot be used for devices of this type 6 5 2 Temperature Simulation for Thermocouples TC Temperature Setting Thermocouples types B E J K L N R S T and U are simulated with voltage Internal or external temperat...

Страница 50: ...ected to the jacks at the calibrator with equalizing leads for the thermocouple to be simulated b The temperature of the thermocouple connector jack at the device to be calibrated is measured with a precision temperature measuring instrument and the resulting value is entered to the calibrator as a reference temperature The calibrator and the device to be calibrated are connected with copper wire ...

Страница 51: ...e Function Ð Press the ZERO SEL ESC key in order to switch to the select range menu Ð Select the desired current range with the keys 0 20 mA 4 20 mA or 0 24 mA Acknowledge your selection with OUT ENTER The display is switched to the current value entry window but the selected current range still appears in the auxiliary display Selecting the Current Range for the Interval or Ramp Function Ð Press ...

Страница 52: ...t sink operating mode because thermal overload would otherwise occur and the fuse would blow LoVolt appears at the display if voltage is too low Example of a 2 Wire Transmitter Measuring Circuit 6 6 2 Current Source Internal supply power is used to simulate a current source Note The current source s internal control loop is monitored If voltage drop at the external load burden is greater than 20 V...

Страница 53: ...be specified This function is above all suitable for calibrating analog displays and recorders during one man operation Input parameters for interval sequences All simulation functions except for Hz can be adjusted as output quantities A lower Start and an upper End range limit can be selected for each output quantity from within the overall range The number of steps can be set within a range of 1...

Страница 54: ... key the individual steps are triggered with the and keys The relationship between the output signal and each of the key operations is depicted with the help of the following example Example of a Manually Controlled Interval Sequence Key 1 When 1nt ready appears at the display Start the sequence by pressing 2 The sequence is continued in the corresponding direction by pressing the or key 3 Stop th...

Страница 55: ...enever desired as well as resumed Example of an Automatic Interval Sequence Interval parameters output quantity U range of 0 15 V start 2 V end 10 V number of interval steps 3 t1 5 s mode auto Key 1 When 1nt ready appears at the display Start the sequence by pressing 2 The sequence is stopped by pressing the or the key Interval time elapsed thus far is saved as tx 3 The sequence is resumed by pres...

Страница 56: ...me sequences Parameters for the ramps are depicted below The following functions can be adjusted as output quantities voltage U current sink I Sink current source I Source resistance R or temperature temp TC or RTD A lower Start and an upper End range limit can be selected for each output quantity from within the overall range Rise time t1 and fall time t3 are adjustable from 0 seconds 60 minutes ...

Страница 57: ...on ramp mode repeat onCe rEPEAT endless loop onCE one time only Example of a Periodic Ramp Sequence Manually Controlled Ramp Sequence After entering all parameters start with Rising or falling ramps can be triggered with the or key The relationship between the output signal and each of the key operations is depicted with the help of the following example ZERO SEL ESC MEAS CAL SETUP OUT ENTER OUT E...

Страница 58: ...needs to be tested you only need to connect the Calibrator and Sense sockets to each other because the Calibrator and Sense jacks are connected internally Activating the Dual Mode Ð Select a simulator function with the rotary switch The calibra tion operating mode must be activated see section 6 1 Ð Press and hold the ZERO SEL ESC key for approximately 2 seconds and select the Udc or Idc measuring...

Страница 59: ...Acknowledge ZERO SEL ESC SET DUAL Long 1dc30 Vdc30 0ff mA V 02 000 00 340 DUAL OUT ENTER OUT ENTER Acknowledge mA Temp V Hz Ω Deactivate Dual Mode 0FF ZERO SEL ESC SET DUAL Long or VmA Select Range select range select sensor Change Value 000 00 ZERO SEL ESC OUT ENTER mA T ...

Страница 60: ...ter acknowledge it with the OUT ENTER key Ð The keys can be used to position the cursor at the entry position The desired value is selected with the help of the keys Ð Changes can only be accepted with the OUT ENTER key Ð You can return to the sub menu without making any changes by pressing the ZERO SEL ESC key and to the main menu by pressing the ZERO SEL ESC key once again etc Ð You can switch t...

Страница 61: ...y battery voltage bEEP 63 bEEP set limit value for continuity testing caldat 62 cALdAt query calibration date CLEAr 23 Measurement Data Recording CLAMP 41 Direct Current Measurement with Current Clamp Sensor mA DC 42 AC Measurement with Current Clamp Sensor A AC and Hz 43 Direct and Alternating Current Measurement with Current Clamp Trans former mA DC mA AC and Hz dAtE 62 query date and time 64 dA...

Страница 62: ...he respective measured value is transmitted to the interface or to measured value memory Any one of the following sampling rates can be selected mm ss t 00 00 1 00 00 2 00 00 5 00 01 0 00 02 0 00 05 0 h mm ss z h hours m minutes s seconds z tenths of a sec 0 00 10 0 00 20 0 00 30 0 00 40 0 00 50 0 01 00 0 02 00 0 05 00 0 10 00 0 20 00 0 30 00 0 40 00 0 50 00 1 00 00 2 00 00 3 00 00 4 00 00 5 00 00...

Страница 63: ...off after one additional minute Setting APoFF If the on setting is selected the multimeter is set to continuous operation and ON appears in the display to the right of the battery symbol In this case the multimeter can only be switched off manually The on setting can only be canceled by changing the respective parameter and not by switching the instrument off 1nFo SET time APoFF 10 59min on 10 min...

Страница 64: ...ed after replacing the batteries 7 5 Default Settings Previously entered changes can be undone and the default settings can be reactivated This may be advisable under the following circumstances After the occurrence of software or hardware errors If you are under the impression that the multimeter does not work correctly Ð Disconnect the device from the measuring circuit Ð Remove the batteries tem...

Страница 65: ...GMC I Messtechnik GmbH 65 Device and Measuring Parameters ...

Страница 66: ...on as the interface is addressed by the PC assuming that the irStb parameter has been set to on see section 8 2 or the instrument is already switched on the first command wakes up the METRACAL MC but does not yet execute any further commands The continuous transmission operating mode is selected manually as described below In this operating mode the instrument continuously transmits measurement da...

Страница 67: ...n though the multimeter is switched off iroFF IR does not appear at the display and the infrared interface is switched off signals cannot be received 1nFo SET time irStb iron iroFF irstb iroFF default setting Addr Address If several multimeters are connected to the PC via an interface adapter a separate address can be assigned to each instrument Address number 1 should be selected for the first in...

Страница 68: ...mum Load Resistance S Hz Imax Hz 1 Hz 2 kHz 0 1 1Hz 1 kΩ 0 05 0 2 18 mA Current Source Max load S μA mA 4 20 mA 1 μA 17 V 0 05 2 0 20 mA 0 24 mA Current Sink S μA Umax mA 4 20 mA 1 μA Vin 4 27 V 0 05 2 27 V 0 20 mA 0 24 mA Resistance Simulation Sensor Current mA S Ω Imax Ω 5 2000 Ω 0 1 Ω 0 05 0 1 4 5 0 05 0 2 5 mA Sensor Type Simulation Range in C Simulation Range in F Intrinsic Uncertainty Over l...

Страница 69: ...0 μV 11 MΩ 9 MΩ 50 pF 0 05 10 0 2 30 100 d 30 V 1 mV 10 MΩ 9 MΩ 50 pF 0 05 10 0 2 30 100 d 300 V 10 mV 10 MΩ 9 MΩ 50 pF 0 05 10 0 2 30 100 d Voltage drop at approx range limit DC AC 2 DC AC 2 10 mA 300 μA 10 nA 150 mV 150 mV 0 1 15 0 8 30 100 d 0 36 A Cont 3 mA 100 nA 150 mV 150 mV 0 05 15 0 5 30 100 d 30 mA 1 μA 150 mV 150 mV 0 05 15 0 5 30 100 d 300 mA 10 μA 150 mV 150 mV 0 05 15 0 5 30 100 d Op...

Страница 70: ...lution at Upper Range Limit Input Impedance Intrinsic Uncertainty at Highest Resolution under Reference Conditions Overload Capacity 3 Value Time 30 000 60 000 1 3100 1 fmin 6 rdg d Hz 300 Hz 0 01 Hz 1 Hz 0 05 5 7 10 300 V Continuous 3 kHz 0 1 Hz 300 V 30 kHz 1 Hz 200 V 300 kHz 10 Hz 10 Hz 20 V Meas Func tion Temperature Sensor Measuring Range Resolution Intrinsic Uncertainty at Highest Resolution...

Страница 71: ...Frequency Measured Qty Meas Range Influence Error 2 rdg d Frequency VAC 20 Hz 45 Hz 300 00 mV 300 0 V 2 30 65 Hz 1 kHz 1 kHz 20 kHz 3 30 Influencing Quantity Frequency Measured Qty Meas Range Influence Error 2 rdg d Frequency IAC 20 Hz 45 Hz 300 μA 3 mA 30 mA 300 mA 2 30 65 Hz 10 kHz 3 30 Influencing Quantity Sphere of Influence Measured Quantity Measuring Range Influence Error 2 Measured Quantity...

Страница 72: ...lay sign is displayed if plus pole is connected to LCD test All display segments available during operation of the METRACAL MC are acti vated after the instrument is switched on Influencing Quantity Sphere of Influence Measuring Range Attenuation dB Common mode interference voltage Interference quantity max 250 V V 90 dB Interference quantity max 250 V 50 Hz 60 Hz sine 300 mV 30 V 80 dB 300 V 70 d...

Страница 73: ...e disabled Fuses Fuse links DMM mA current measuring ranges FF0 63A 400V 5 mm x 20 mm breaking capacity 1 5 kA at 380 V AC with ohmic load Calibrator FF0 63A 400V 5 mm x 20 mm breaking capacity 1 5 kA at 380 V AC with ohmic load Multimeter Electrical Safety Protection class II per EN 61010 1 2010 VDE 0411 1 2011 Measuring category II Operating voltage 300 V Pollution degree 2 Test Voltage 2 2 kV p...

Страница 74: ...the housing Data transmission Serial bidirectional not IrDa compatible Protocol Device specific Baud rate 38 400 baud Functions DMM read data Calibrator set query calibration functions and parameters The USB X TRA plug in interface adapter see accessories is used for adaptation to the PC s USB port IP XY 1st digit X Protection against foreign object entry IP XY 2nd digit Y Protection against the p...

Страница 75: ...GMC I Messtechnik GmbH 75 Technical Data ...

Страница 76: ...acing the batteries The selected operating parameters remain in memory although date and time must be reentered Charge level The current battery charge level can be queried in the 1nfo menu 1nFo bAtt 2 75 V Make sure that no battery leakage has occurred before initial start up as well as after long periods of storage Continue to inspect the batteries for leakage at short regular intervals If batte...

Страница 77: ...d on with the rotary switch in the mA position When the instrument is already on and the rotary switch is turned to the mA position In the active current measuring range when voltage is applied If the fuse is blown or has not been inserted FuSE appears at the digital display The fuse interrupts the current measuring ranges All other measuring ranges remain functional Replacing the Fuse If a fuse s...

Страница 78: ...nt is a category 9 product monitoring and control in strument in accordance with ElektroG German Electrical and Electronic Device Law This device is subject to the RoHS direc tive Furthermore we make reference to the fact that the current status in this regard can be accessed on the Internet at www gossenmetrawatt com by entering the search term WEEE We identify our electrical and electronic devic...

Страница 79: ...form DAkkS or factory calibrations for you in our calibration laboratory Please visit our website at www gossenmetrawatt com Company DAkkS Calibration Center or FAQs Calibration questions and answers By having your measuring instrument calibrated regularly you ful fill the requirements of a quality management system per DIN EN ISO 9001 10 7 Manufacturer s Guarantee All METRAHIT digital multimeters...

Страница 80: ...ity 50 80 Pollution degree 2 Application Attention In conformity with standard DIN EN 61010 031 mea surements in an environment according to measuring category III may only be performed with the safety caps applied to the test probes of the measurement cables Please observe the maximum values of the electrical safety of the instrument DMM For establishing contact in 4 mm jacks you have to remove t...

Страница 81: ...ng and documenting measured values from METRAHIT multimeters The detailed system requirements are indicated in the METRAwin 10 METRAwin 45 installation instructions METRAwin 90 Calibration Software METRAwin 90 calibration software is a multilingual program for controlling various calibrators for electrical quantities with the help of a PC and for documenting calibration results Please refer to the...

Страница 82: ...1 Statuses 13 irStb 67 itEMP 62 M Maintenance Housing 78 Manufacturer s Guarantee 79 Measured Value Storage DATA Function 21 Min Max Values 22 Measurement Cables 80 Measuring Category Significance 8 Measuring Range Selection Automatic 18 Manual 18 Memory Clear 24 Ending Recording 24 Querying Occupancy 24 Start Recording 23 O OCCUP 62 Overview Keys and Connections 12 Parameters 61 P Power Pack Conn...

Страница 83: ...13 Instrument 15 Rotary Switch Positions 14 T Temperature Measurement With Resistance Thermometers 35 With Thermocouples 34 tiME 64 Training 3 U Use for Intended Purpose 10 V Voltage Comparator 29 30 Voltage Measurement Notes 27 Scope of Functions 27 W WEEE Mark 15 ...

Страница 84: ...ct to change without notice PDF version available on the Internet GMC I Messtechnik GmbH Südwestpark 15 90449 Nuremberg Germany Phone 49 911 8602 111 Fax 49 911 8602 777 e mail info gossenmetrawatt com www gossenmetrawatt com ...

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