Gossen MetraWatt METRAHIT EBASE Operating Instructions Manual

PDF

Document

Operating Instructions

METRAHIT⏐

XTRA

⏐

TECH

⏐

SPECIAL

⏐

BASE

High Resolution TRMS Digital Multimeter

3-349-456-03

9/7.15

Standard Equipment Contact Persons

Standard Equipment

1 multimeter in HC20 hard case

1 KS17-S measurement cable set

2 batteries

1 abbreviated operating instructions

1 CD ROM (contents: amongst other topics operating instructions and data sheet)

1 DAkkS calibration certificate

1 Protective rubber cover

Overview of features included

Function

Voltage V

(Ri

≥ 9 MΩ)

Voltage V

TRMS

(Ri

≥ 9 MΩ)

Voltage Lo 1)

(Ri

= 1 MΩ)

TRMS

Voltage V

(Ri

≥ 9 MΩ)

TRMS

Frequency Hz @ V

AC bzw.

@ Lo 1) V

Low-pass filter 1 kHz

Bandwidth @ V

AC+DC

bzw. V

Frequency MHz @ 5V TTL

Duty cycle %

Voltage level measurement dB

Resistance

Continuity test

@ICONST = 1 mA

Diode measurement

CONST

= 1 mA

Temperature measurement

°C/°F @T

Temperature measurement

°C/°F R

E XTRA

E TECH

Pt100/Pt1000

E SPECIAL E BASE

... 300 kHz ... 300 kHz ... 300 kHz ... 300 kHz

100 kHz

1 Hz...1 MHz

@ V

/ @ LoV

20 kHz

—

2.0 % ... 98 %

—

Typ K

—

1 kHz

—

Function

Capacitance measurement F

Current A

AC+DC

TRMS

Current A

TRMS

Bandwidth @ A

AC+DC

bzw. A

Frequency Hz @ A

Measurement with current clamp with adjustable transfer factor

Data logger function 2)

(memory)

Relative value measurement ΔREL

Zero point ZERO

MIN/MAX/DATA Hold

IR-interface (38.4 kBd)

Power pack connector socket

Protective rubber cover

Fuse

Protection 3)

Measuring category

DAkkS calibration certificate

E XTRA

600

μA/6 mA

60 mA/600 mA

6 A/10 A (16 A)

E TECH

E SPECIAL

—

60 mA/600 mA

6 A/10 A (16 A)

E BASE

—

16 Mbit

10 kHz

... 60 kHz mV / A mA / A

—

10 A / 1000 V 10 A / 1000 V

IP52 IP52

1000 V CAT III

600 V CAT IV

3 mV / A

A / A

—

IP52

600 V CAT II

—

— mV / A

—

IP52

1000 V CAT III

600 V CAT IV

Alternating voltage measurement with specially reduced input impedance

) 16 Mbit = 2048 kByte = 61,600 measured values, sampling rate adjustable from 0.1 seconds to 9 hours

IP 65 available with the METRAHIT OUTDOOR model

GMC-I Messtechnik GmbH

Accessories (sensors, plug inserts, adapters, consumable materials)

The accessories available for your instrument are checked for compliance with currently valid safety regulations at regular intervals, and are expanded as required for new applications.

Currently up-to-date accessories which are suitable for your measuring instrument are listed at the following web address along with photo, order number, description and, depending upon the scope of the respective accessory, data sheet and operating instructions: www.gossenmetrawatt.com

t

Pulse Time Quantities f

P t

E t

P t

– t

E t

P pulse frequency = 1/t

P pulse duration interpulse period pulse or duty cycle

002.00

% t

Measuring Ranges: fp pulse frequency range

Hz t

15 Hz ... 1 kHz 2 ... 98 %

... 10 kHz 5 ... 95 %

... 50kHz 10 ... 90 %

V Ω

Temp COM

Max. 5 V

GMC-I Messtechnik GmbH

5.2

Resistance Measurement, Ω

Ð Disconnect supply power from the electrical circuit of the device to be measured, and discharge all high-voltage capacitors.

Ð Make sure that the device under test is voltage-free.

Interference voltages distort measurement results!

Refer to chapter 5.1.1 regarding testing for the absence of

voltage 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 zero balancing (see chapter 4.2).

V/Hz,

Ω, Temperature,

and A/Hz Measurements

Ω k

000.00

Measuring Ranges:

600 Ω … 60 MΩ

V Ω

Temp COM

0 V !

R x

GMC-I Messtechnik GmbH 35

V/Hz,

Ω, Temperature,

and A/Hz Measurements

5.3

Continuity Test

Ð Disconnect supply power from the electrical circuit of the device to be measured, and discharge all high-voltage capacitors.

Ð Make sure that the device under test is voltage-free.

Interference voltages distort measurement results!

Ð Set the rotary switch to .

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-circuit, 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 “ SETUP” menu (see also

chapter 6.4):

MEASURE

SETUP

1nFo  ...  SET

FUNC

ENTER

FUNC

ENTER

1, 10, 20 ... 500 Ω  in 10 Ohm steps

(10 = default setting) rAtE

FUNC

ENTER

 ...  bEEP

0 V !

V Ω

Temp

000.8

FUNC

ENTER

0.443

COM

R < 1, 10, 20 ... 500 Ω

GMC-I Messtechnik GmbH

5.4

Diode Testing with a Constant Current of 1 mA

Ð Disconnect supply power from the electrical circuit of the device to be measured, and discharge all high-voltage capacitors.

Ð Make sure that the device under test is voltage-free.

Interference voltages distort measurement results!

Refer to chapter 5.1.1 regarding testing for the absence of

voltage with the help of the direct voltage measurement.

Ð Set the rotary switch to .

Ð Press the FUNC | ENTER key.

Ð Connect the device under test as shown.

Conducting 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 6.0 V, several series connected components or reference diodes can be tested with a small reference voltage and reference diodes.

Reverse Direction and Interruption

The measuring instrument indicates overload 0L.



Note

Resistors and semiconductor paths connected in parallel to the diode distort measurement results!

V/Hz,

Ω, Temperature,

and A/Hz Measurements

0 V !

V Ω

Temp

000.8

FUNC

ENTER

0.443

COM

Measuring Range: to 6.000 V +

0.654

Forward Direction

0.L

Reverse Direction

–

GMC-I Messtechnik GmbH 37

V/Hz,

Ω, Temperature,

and A/Hz Measurements

5.5

Temperature Measurement

Temperature measurement is performed with a type K thermocouple (accessory), which is connected to the voltage input. Alternatively, a Pt100 or Pt1000 resistance sensor can be used with the METRAHIT E XTRA and

METRAHIT E TECH .

Selecting the Unit of Measure for Temperature

MEASURE

SETUP

1nFo  ...  tEMP

FUNC

ENTER

°C / °F 

FUNC

ENTER

(°C = default setting)



Note

The internal reference temperature (temperature of the internal reference junction) is measured by a temperature sensor inside of the instrument. This may deviate from room temperature as a result of internal heat-up, or moving from warmer to colder surroundings or vice versa.

Ð Connect the sensor to the two accessible jacks. The instrument displays the measured temperature using the selected unit of measure.

Temp

RTD

0023.3

°Χ

Type K

FUNC

ENTER

5.5.1 Measurement with Thermocouples, Temp TC

Ð Set the rotary switch to “Temp

”.



Note

METRAHIT E XTRA and METRAHIT E TECH only:

The last selected temperature measurement or the last selected temperature sensor, i.e. type K or Pt100/Pt1000, remains in memory and is accordingly displayed. Press the

FUNC | ENTER key in order to change to the other measuring function if required.

Ð The reference temperature is measured at the internal reference junction (see parameter “

1tEMP ” in chapter 6.3

regarding querying).

Temp

COM

0256.0

°Χ

Pt1000

RTD

Measuring Range

TC K (NiCr-

Ni)

–250.0

… +1372.0 °C

GMC-I Messtechnik GmbH

V/Hz,

Ω, Temperature,

and A/Hz Measurements

5.5.2 Measurement with Resistance Sensors

(METRAHIT E XTRA and METRAHIT E TECH only)

Ð Set the rotary switch to “Temp

” or “Temp

RTD

”.

The last selected temperature measurement or sensor, i.e. type K or Pt100/Pt1000, remains in memory and is accordingly displayed. Press the FUNC | ENTER key in order to change to the other measuring function if required. The sensor type, i.e. Pt100 or Pt1000, is detected automatically and displayed.

There are two different ways to compensate for cable resistance:

Automatic Compensation

Ð Press the ZERO | ESC key.

“Short leads” appears at the display.

If you prefer to enter cable resistance directly, you can skip the following entry prompt.

Ð Short circuit the measuring instrument’s connector cables.

“ 000.00 ” appears at the display. After pressing the FUNC |

ENTER 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 | 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 changes with the   keys, and change the respectively selected digit with the  keys.

The default value is 0.43

Ω (Z3409). Values can be selected within a range of 0 to 50

Ω.

Ð Upon pressing the FUNC | ENTER key, the selected value is activated and the display is returned to the measuring function. Cable resistance remains in memory even after the instrument has been switched off.

GMC-I Messtechnik GmbH

Temp

RTD

Temp

TC 0023.3

°Χ

Type K

FUNC

ENTER

Measuring Ranges

RTD Pt100 –200.0

… +850.0 °C

RTD Pt1000 –150.0

… +850.0 °C

0025.6

°Χ

Pt1000

FUNC

ENTER

ZERO

ESC

RTD

V Ω

Temp

Automatic

Compensation

S h ort Leads

COM

R L

000.00

ZERO

ESC

RTD R L

000.50

Enter Cable Resistance

FUNC

ENTER

V/Hz,

Ω, Temperature,

and A/Hz Measurements

5.6

Capacitance Measurement

(METRAHIT E XTRA and METRAHIT E TECH only)

Ð Disconnect supply power from the electrical circuit of the device to be measured, and discharge all high-voltage capacitors.

Ð Make sure that the device under test is voltage-free.

Capacitors must always be discharged before measurement is performed.

Interference voltages distort measurement results!

Refer to chapter 5.1.1 regarding 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!

10.38

0 V !

–

V Ω

Temp COM

–

Measuring Ranges:

60 nF ...600 μF

GMC-I Messtechnik GmbH

V/Hz,

Ω, Temperature,

and A/Hz Measurements

5.7

Current Measurement

Notes Regarding Current Measurement

• The multimeter may only be operated with installed batteries or rechargeable batteries. Dangerous currents are otherwise not indicated, and the instrument may be damaged.

• The METRAHIT E SPECIAL multimeter does not have a fuse for the current measuring range. It’s designed for measurements in current transformer circuits and is approved for measuring category 600 V

CAT II.

• Set up the measuring circuit in a mechanically secure fashion, and secure it against inadvertent breaks. Select conductor cross-sections and lay out connections such that they do not overheat.

• An intermittent acoustic signal warns of current greater than 10 A.

An continuous acoustic signal warns of current greater than 16 A.

• 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 1000 V AC/DC.

Use specified fuses only! The fuse must have a breaking capacity of at least 30 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 in chapter 9.3.

• Be absolutely certain that the measuring ranges are not overloaded beyond their allowable capacities. Limit values are in-

cluded in chapter 8, “Technical Data”, in the table entitled “Meas-

uring Functions and Measuring Ranges” in the “Overload

Capacity” column.

GMC-I Messtechnik GmbH

Scope of Functions, Current Measurement, Direct Connection

Function

A AC / Hz

A AC+DC TRMS

A DC

1000 V fuse

METRAHIT

E XTRA

600

μA

6/60/600 mA

6 A / 10 (16) A

600

μA

6/60/600 mA

6 A / 10 (16) A

600

μA

6/60/600 mA

6 A / 10 (16) A

•

METRAHIT

E TECH

60/600 mA

6 A / 10 (16) A

60/600 mA

6 A / 10 (16) A

60/600 mA

6A / 10 (16) A

•

METRAHIT

E SPECIAL

6 A / 10 (16) A

— * )

METRAHIT

E BASE

—

* ) Special model without fuse for measuring-current transformer

Scope of Functions, Current Measurement via Current Clamp Sensors

Function METRAHIT

E XTRA

METRAHIT

E TECH

METRAHIT

E SPECIAL

METRAHIT

E BASE

Transformation

Factor

A AC

A AC+DC

/ Hz

A DC

Hz (A AC)

•

... 60 kHz

•

... 60 kHz

•

... 60 kHz

•

... 60 kHz

Scope of Functions for Current Measurement with Current Clamps Transformer

Function

Transformation Factor

A AC

Hz (A AC)

/ Hz

METRAHIT E XTRA METRAHIT E TECH METRAHIT E SPECIAL

•

... 60 kHz ... 60 kHz ... 60 kHz

V/Hz,

Ω, Temperature,

and A/Hz Measurements

5.7.1 Direct and Pulsating Current Measurement, Direct Connection,

A DC and A (DC+AC)

(METRAHIT E XTRA , METRAHIT E TECH and

METRAHIT E SPECIAL only)

Ð First disconnect supply power from the measuring circuit or the power consumer (1), and discharge any capacitors.

Ð In accordance with the current to be measured, turn the rotary switch to A or A .

Ð Select the current type appropriate for the measured quantity by briefly pressing the FUNC | ENTER multifunction key. Each time the key is pressed, the instrument is switched back and forth between A DC and A (DC + AC)

TRMS

, which is indicated by means of an acoustic signal. The current type is indicated at the LCD by means of the DC or the (DC+AC)

TRMS

symbol.

Ð Safely connect the measuring instrument (without contact resistance) in series to the power consumer (2) 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 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 condition.

Current measurement may only be performed with installed batteries!

8.8.8.8.8

Measuring Ranges:

METRAHIT E SPECIAL

6 A / 10 A (16 A max. 30 s)

METRAHIT E TECH

60 mA / 600 mA

6 A / 10 A (16 A max. 30 s)

METRAHIT E XTRA

600 μA / 6 mA

60 mA / 600 mA

6 A / 10 A (16 A max. 30 s)

R x

003.50

FUNC

ENTER

003.50

COM mA A

TRMS

I > 10 A

R x

I > 16 A

Strom

GMC-I Messtechnik GmbH

V/Hz,

Ω, Temperature,

and A/Hz Measurements

5.7.2 Alternating Current and Frequency Measurement,

Direct Connection, A AC and Hz

(METRAHIT E XTRA , METRAHIT E TECH and

METRAHIT E SPECIAL only)

Ð First disconnect supply power from the measuring circuit or the power consumer (1), and discharge any capacitors.

Ð In accordance with the current or frequency to be measured, turn the rotary switch to A~ or Hz.

Ð Select the desired measured quantity by briefly pressing the

FUNC | ENTER multifunction key. Each time the key is pressed,

TRMS

and Hz are alternately selected, and switching is acknowledged 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 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 condition.

Current measurement may only be performed with installed batteries!

8.8.8.8.8

Measuring Ranges:

METRAHIT E SPECIAL

6 A / 10 A (16 A max. 30 s)

METRAHIT E TECH

60 mA / 600 mA

6 A / 10 A (16 A max. 30 s)

METRAHIT E XTRA

600 μA / 6 mA

60 mA / 600 mA

6 A / 10 A (16 A max. 30 s)

003.50

TRMS

FUNC

ENTER

COM mA A

050.10

I > 10 A

I > 16 A

1 3

R x

Strom

R x

43 GMC-I Messtechnik GmbH

V/Hz,

Ω, Temperature,

and A/Hz Measurements

5.7.3 Direct and Pulsating Current Measurement with Current Clamp Sensors, A DC and A (DC+AC)

Transformer Output, Voltage/Current

When a current clamp sensor is connected to the multimeter

(V input (METRAHIT E BASE : V input)), all current displays appear with the correct value in accordance with the selected transformation factor. The only prerequisite is that the current sensor is equipped with at least one of the below listed transformation factors, and that the factor has been previously selected in the following menu ( Cl ip ≠¼ 0FF),

MEASURE

SETUP

SEnd

1nfo

SET tEMP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

Set

StArt

StoP

Selection

FUNC

ENTER

Set rAtE nofil rESoL

diSP

CLiP

APoFF dB REF bEEP irStb

Addr dAtE tiME

Set

°C

°F

Selection

FUNC

ENTER

Selection

FUNC

ENTER

Device and Measuring Parameters

6.2

List of All Parameters

Parameter E XTRA E TECH E SPE -

CIAL

E BASE Page: Header

diSP • • •

• 51: 0.diSP – show/hide leading zeros

Addr • — —

— 55: Configuring Interface Parameters

A .

diSP • • •

• 51: A.diSP – analog display: select display mode

APoFF

• • • •

51: APoFF – specified time for automatic shutdown and continuous ON

bAtt bEEP

CLEAr

• • •

• 50: bAtt – query battery voltage

• • •

• 52: bEEP – set the limit value for continuity testing

•

— — —

23: Measurement Data Recording (METRAHIT Extra only)

CLIP

• • • •

44: Direct and Pulsating Current Measurement with Current Clamp Sensors, A DC and A (DC+AC)

dAtE • • •

• 50: dAtE – query date, 52: dAtE – enter date

dBrEF • • •

• 51: dbrEF – measuring alternating voltage level

EMpty

•

— — —

23: Measurement Data Recording (METRAHIT Extra only)

1nfo

SEnd

• • •

• 50: Querying Parameters – InFo Menu (as moving letters)

irStb • — —

— 55: Configuring Interface Parameters

1tEMP • • •

• 50: ItEMP – query reference temperature

nofil • • •

• 50: noFiL – quick display of measured values

0CCvP • — —

— 23: Measurement Data Recording (METRAHIT Extra only)

rAtE •

— —

— 50: rAtE – set the sampling rate (METRAHIT Extra only)

rESoL • • •

• 51: rESoL – switching resolution

•

— —

— 54: Activating the Interface

SET • • •

• 50: Entering Parameters – SETUP Menu

StArt •

— — —

StoP

23: Measurement Data Recording (METRAHIT Extra only)

store

• — — —

•

— — — tEMP t iME

• • •

• 38: Temperature Measurement

• • •

• 50: tiME – query time, 52: tiME – set time

vErSion • • •

• 50: vErSion – query firmware version

Device and Measuring Parameters

6.3

Querying Parameters – InFo Menu (as moving letters) 6.4

Entering Parameters – SETUP Menu bAtt – query battery voltage

MEASURE

SETUP

MEASURE

SETUP

1nFo

FUNC

ENTER

FUNC

ENTER bAtt: 2.75 V.

vErSion – query firmware version bAtt: 

ItEMP – query reference temperature vErSion: 2.09

The temperature of the internal reference junction is measured with a temperature sensor in close proximity to the input sockets.

MEASURE

1nFo bAtt:  ...  1tEMP: 24 °C

SETUP

FUNC

ENTER dAtE – query date

MEASURE

1nFo

FUNC bAtt:  ...  dAtE: 31.12.05 (DD.MM.YY)

SETUP ENTER

D = day, M = month, Y = year

Date and time must be reentered after replacing the batteries.

rAtE – set the sampling rate (METRAHIT E

XTRA only)

The sampling rate specifies the time interval after which the respective measured value is transmitted to the interface, or to measured value memory.

Any one of the following rates can be selected:

00:00.1, 00:00.2, 00:00.5, 00:01.0, 00:02.0, 00:05.0

[h:mm:ss.t] (h = hours, m = minutes, s = sec., t = 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, 6:00:00, 7:00:00, 8:00:00, 9:00:00

Setting the Sampling Rate

MEASURE

1nFo  ...  SET

SETUP

FUNC

ENTER rAtE

FUNC

ENTER

...

00 : 00 .

...

00 

FUNC

ENTER

(00:00.5 = 0.5 seconds = default value)

The last value is retained.

tiME – query time

MEASURE

1nFo

SETUP

(hh:mm:ss)

FUNC

ENTER bAtt:  ...  t iME: 13:46:56 h = hours, m = minutes, s = seconds

Date and time must be reentered after replacing the batteries.

OCCUP – query memory occupancy (METRAHIT E

XTRA only)

MEASURE

SETUP

1nFo

FUNC

ENTER bAtt:  ...  0CCUP: 000.0% noFiL – quick display of measured values

For the following functions, a quicker display update rate of 5 display values per second (noFiL=ON) instead of 2 display values per second (noFiL=OFF) can be set: V DC, A DC with clamp, A DC direct, Ω, diode measurement, continuity test.

MEASURE

SETUP

1nFo  ...  SET

FUNC

ENTER rAtE  ...  nofil

FUNC

ENTER on / 0ff 

FUNC

ENTER

(OFF = Standard value*/default setting)

* All specifications refer to the default update rate with measuring parameter noFiL = OFF (default).

GMC-I Messtechnik GmbH

rESoL – switching resolution

All main measuring functions can be switched back and forth between 6000 and 60,000 digits.

MEASURE

SETUP

FUNC

ENTER

1nFo  ...  SET

6000 / / 60000 

FUNC

ENTER

FUNC

ENTER rAtE  ...  resol

(60,000 is the default setting)

0.diSP – show/hide leading zeros

This parameter determines whether or not leading zeros will appear in the measured value display.

MEASURE

SETUP

1nFo  ...  SET

FUNC

ENTER rAtE  ... 

0000 .0 : with leading zeros (default setting)

0 leading zeros suppressed

diSP

FUNC

ENTER



FUNC

ENTER

A.diSP – analog display: select display mode

One of two different display modes can be selected for the analog display:

• bArG: bar graph

• Point: pointer

Device and Measuring Parameters

MEASURE

SETUP

FUNC

ENTER

1nFo  ...  SET bArG / Point 

FUNC

ENTER

FUNC

ENTER rAtE  ...  A.diSP

( bArG = default value)

APoFF – specified time for automatic shutdown and continuous ON

The instrument is switched off automatically if the measured value remains unchanged for a long period of time, and if none of the keys or the rotary switch have been activated before the specified time “ APoFF ” (entered in minutes) has elapsed.

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 cancelled by changing the respective parameter, or by switching the instrument off manually.

In this case, the parameter is reset to 10 minutes.

MEASURE

SETUP

FUNC

ENTER

(10 minutes = default setting) dbrEF – measuring alternating voltage level

MEASURE

SETUP

1nFo  ...  SET

10 ... 59 min on 

FUNC

ENTER

FUNC

ENTER rAtE  ...  APoFF

1nFo  ...  SET

FUNC

ENTER

0 ..001 ... 99 V 

(0.775 V = default setting)

FUNC

ENTER

FUNC

ENTER rAtE  ...  dbrEF

GMC-I Messtechnik GmbH 51

Device and Measuring Parameters bEEP – set the limit value for continuity testing

MEASURE

SETUP

FUNC

ENTER

1nFo  ...  SET

FUNC

ENTER

1, 10, 20 ... 500 Ω  rAtE

FUNC

ENTER

 ...  bEEP

(10 Ω = default setting) irStb – status of the infrared receiver in the stand-by mode

See chapter 7.2 on page 55 regarding settings.

Addr – select device address

See chapter 7.2 on page 55.

52 dAtE – enter date

Entering the current date makes it possible to acquire measured values in real-time.

MEASURE

SETUP

FUNC

ENTER

1nFo  ...  SET

FUNC

ENTER rAtE  ... 

31.12 (DD: day . MM: month)   dAtE

FUNC

ENTER

2005 (YYYY: year)  

FUNC

ENTER

Date and time must be reentered after replacing the batteries.

tiME – set time

Entering the correct time makes it possible to acquire measured values in real-time.

MEASURE

SETUP

FUNC

ENTER

1nFo  ...  SET

FUNC

ENTER

10:24 (hh:mm)   rAtE

FUNC

ENTER

 ...  t iME

Date and time must be reentered after replacing the batteries.

CLIP – set transformation factor

See chapter 5.7.3 ff.

GMC-I Messtechnik GmbH

6.5

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 temporarily (see also chapter 9.2).

Ð Simultaneously press and hold

ZERO the

ESC

ON / OFF

LIGHT keys, and reinsert the batteries at the same time.

Device and Measuring Parameters

GMC-I Messtechnik GmbH 53

Interface Operation

7 Interface Operation

The multimeters are equipped with an infrared interface for the transmission of measurement data to a PC. Measured data are optically transferred through the instrument housing by means of infrared light to an interface adapter (accessory), which is attached to the multimeter. The adapter’s USB interface allows for the establishment of a connection to the PC via an interface cable.

Beyond this, commands and parameters can be transmitted from the PC to the multimeter as well. The following functions can be executed:

• Configuration and read-out of measuring parameters

• Measuring function and measuring range selection

• Start measurements

• Read out stored measured values

(METRAHIT E XTRA only)

7.1

Activating the Interface

The interface is automatically activated for receiving operation

(multimeter receives data from the PC) as soon as the interface is addressed by the PC, assuming that the “ irStb ” parameter has been set to “

ir on ” (see chapter 7.2), or the instrument is already

switched on (the first command wakes up the multimeter, 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. The measured value can then be displayed with the help of a terminal program.

Starting Continuous Transmission Operation with Menu Functions

MEASURE

SETUP

1nFo  ...  SEnd

FUNC

ENTER

StArt

FUNC

ENTER send

The symbol blinks at the display in order to indicate interface operation.

Stopping Continuous Transmission Operation with Menu Functions

MEASURE

SETUP

FUNC

ENTER

1nFo  ...  SEnd stop

FUNC

ENTER

FUNC

ENTER send 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 display is automatically switched back on.

54 GMC-I Messtechnik GmbH

7.2

Configuring Interface Parameters irStb – status of the infrared receiver in the stand-by mode

There are two possible switching statuses for the infrared interface when the multimeter is switched off: ir on: ir oFF:

IR appears at the display and the infrared interface is active, i.e. signals such as making commands can be received, and power is consumed even though the multimeter is switched off.

IR does not appear at the display and the infrared interface is switched off, signals cannot be received.

Interface Operation

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 instrument, 2 should be assigned to the second and so forth.

MEASURE

SETUP

FUNC

ENTER

1nFo  ...  SET

00 ... 01 ... 15 

FUNC

ENTER

FUNC

ENTER

rAtE  ...  Addr

(15 = default setting)

MEASURE

SETUP

FUNC

ENTER

1nFo  ...  SET

ir on / ir oFF 

FUNC

ENTER

FUNC

ENTER

rAtE  ...  irStb

( irstb = ir on = default setting, irstb = ir oFF = status upon shipment)

GMC-I Messtechnik GmbH 55

Technical Data

8 Technical Data

Meas.

Function

V dB

Measuring Range

Resolution at Upper

Range Limit

59 999 5999

600 mV 10 μV 100 μV

6 V 100 μV 1 mV

60 V 1 mV 10 mV

600 V 10 mV 100 mV

1000 V 100 mV 1 V

600 mV

600

1000

0.01 dB

Input Impedance

Intrinsic Error under Reference Conditions for High Resol 59999 digits

±(... % rdg. + ... d) ±(... % rdg. + ... d)

~ 1)

±(... % rdg. + ... d)

≥ 9 MΩ

≥9 MΩ // < 50 pF 0.09 + 5 mit ZERO *)

≥9 MΩ // < 50 pF

Display range for reference voltage

0.05 + 5

0.09 + 5

0.5 + 30

0.5 + 9

1 + 30

Intrinsic error

REF

= 0.775 V

–48 dB ... –2 dB

–28 dB ... +18 dB

–8 dB ... +38 dB

+2 dB ... +58 dB

+22 dB ... +63 dB

0.1 dB (U > 10 % MB)

Voltage drop, approx. at upper range limit

1) 1)

600

μA

10 nA 100 nA

6 mA 100 nA 1

μA

60 mA 1 μA 10 μA

600 mA 10 μA 100 μA

6 A 100

μA

1 mA

10 A 1 mA 10 mA

Factor 1:1/10/100/1000 Input

150 mV

200 mV

150 mV

200 mV

300 mV

600 mV 600 mV

Input impedance

0.5 + 5 with ZERO *)

0.9 + 10

1 + 10

1.5 + 10

1.5 + 30

0.06/0.6/6/60 A

0.6/6/60/600 A

6/60/600/6 000 A

0.6/6/60/600 A

6/60/600/6000 A

60 mA

600 mA

6 A

600 mV

6 V

XTRA

/ E

SPECIAL

/ E

TECH

Current measuring input

(A socket )

E XTRA / E SPECIAL / Voltage measurement input

TECH

: (V socket) Ri =1 M Ω/9 MΩ

BASE

: (V socket ) Ri ~1 M Ω

Specification see current ranges A plus current clamps transformer error

Specification see voltage measuring ranges V

±(0.5% rdg. + 10 d) ±(1% rdg. + 30 d) ±(1.5% rdg. + 30 d) plus current clamp sensor error

Overload Capacity

Value

1000 V

RMS

Sine

1000 V

RMS

Sine

Time continous continous

0.7 A continous

10 A: ≤ 5 min 4)

16 A: ≤ 30 s 4)

Measuring input

0.7 A continous

10 A: 5 min

Measuring input

1000 V RMS max. 10 s

56 GMC-I Messtechnik GmbH

Technical Data

Meas.

Function

Measuring Range

600 Ω

6 k Ω

60 k Ω

600 k

6 M Ω

60 M Ω

600

6.0 V

Resolution at Upper

Range Limit

59 999 5999

Input Impedance

Open-circuit voltage Meas. curr. @ range limit

10 m Ω 100 mΩ

100 m Ω 1 Ω

1 Ω 10 Ω

< 1.4

Ω 100 Ω

100

—

Ω 1 k Ω

1 k Ω 10 k Ω

< 1.4

0.1

Ω approx. 9 V approx. 250 μA approx. 65 μA approx. 7.5

μA approx. 0.75

μA approx. 0.1

μA approx. 30 nA approx. 1 mA const.

— 1 mV approx. 9 V approx. 1 mA const.

Specified accuracy is valid as of 3% of the measuring range.

With short-circuited test probes: residual value of 1 to 30 d at zero point due to the TRMS

converter (exception: mV AC range, 60 digits). See frequency influence on page 59.

At 0 ° ... + 40 °C

Displays up to max. 6.0 V, “OL” in excess of 6.0 V.

Off-time > 30 min and T

*) without ZERO max.

≤ 40 °C

± 15 digits

Intrinsic Error under Reference Conditions for High Resol 59999 digits

±(... % rdg. + ... d) ±(... % rdg. + ... d)

~ 1)

±(... % rdg. + ... d)

0.1 + 5 with active ZERO function

0.1 + 5

0.2 + 5 ...

0.5 + 5

5 + 10

Overload Capacity

Value

1000 V

RMS

Sine

Time max. 10 s

3 + 5

0.5 + 3

GMC-I Messtechnik GmbH 57

Technical Data

Meas.

Function

E XTRA

E TECH

Hz (V)

Hz (A)

Hz (A )

Hz (V)

MHz

E XTRA

Measuring Range

60 nF

600 nF

6 μF

60 μF

600

μF

600.00

6.0000 kHz

60.000 kHz

300.00 kHz

600 Hz ... 1 MHz

2.0 ... 98 %

Resolution at Upper

Range Limit

59999 5999

—

10 pF

100 pF

1 nF

10 nF

100 nF

Input Impedance

Discharge resist.

10 M

1 M

100 k Ω

12 k Ω

3 k

0 max

0.7

V f min

0.01 Hz 0.1 Hz

0.1 Hz 1 Hz

1 Hz 10 Hz

10 Hz 100 Hz

0.01 ...

100 Hz

0.1 ...

1 kHz

— 0.01 % 15 Hz ... 1 kHz

1 Hz

10 Hz

1 ... 100 Hz

1 Hz

5.0 ... 95 %

10... 90 %

—

0.01 %

... 10 kHz

... 50 kHz

1 Hz

°C/°F

Pt 100

Pt 1000

(NiCr-Ni)

– 200.0 ...

+850.0

°C

– 150.0 ...

+850.0

°C

– 250.0 ...

+1372.0

°C

0.1

°C

At 0 ° ... + 40 °C

Applies to measurements at film capacitors and battery operated

Lowest measurable frequency for sinusoidal measuring signals symmetrical to the zero point

Overload capacity of the voltage measurement input: power limiting: frequency x voltage, max. 6 x 10

V x Hz for U > 100 V

Overload capacity of the current measurement input:

See current measuring ranges for maximum current values.

Intrinsic Error under Reference Conditions for

High Resol 59999 digits

±(... % rdg. + ... d)

1 + 10

6) with active ZERO function *)

1 + 6

5 + 6

±(... % rdg. + ... d)

Overload

Capacity

Value Time

1000 V

RMS

Sine max. 10 s

0.05 + 5

10)

Hz (V)

Hz(A )

1000 V max. 10 s

Hz (A):

0.05 + 5 > 2 V ... 5 V

0.1 R + 5 d > 2 V ... 5 V

0.2 R per kHz

+ 5 d

> 2 V ... 5 V

0.5 R per kHz

+ 5 d

> 2 V ... 5 V

±(... % rdg. + ... d)

0.3 + 15

11)

1000 V max. 10 s

0.3 + 15

11)

1000 V

DC/AC

RMS

Sine max. 10 s

1% + 5 K

11)

10)

Input sensitivity, sinusoidal signal, 10% to 100% of the measuring range

11)

Plus sensor deviation

*) without ZERO Max.

± 15 digits

Key: R = meas. range, d = digit(s), rdg. = measured value (reading)

58 GMC-I Messtechnik GmbH

Technical Data

Influencing Quantities and Influence Error

Influencing

Quantity

Sphere of

Influence

Measured Quantity /

Measuring Range

Temperature

0 °C ... +21 °C and

+25 °C ... +40 °C

600

Ω ... 6 MΩ

> 6 M Ω mA/A mA/A

60 nF ... 600 μF

Hz, dB

°C/°F (Pt100/Pt1000)

°C/°F thermocouple K

With zero balancing

Influencing

Quantity

DATA

MIN / MAX

Measuring Quantity

V , A, Ω, Hz, dB, °C

, A, Ω, Hz, dB, °C

Influence Error

(...% rdg. + ... d)

±10 d

±30 d

Influence Error

(...% rdg. + ... d) / 10 K

0.2 + 10

0.4 + 10

0.5 + 10

1 + 10

0.5 + 10

0.8 + 10

1 + 5

0.2 + 10

0.5 + 10

0.2 + 10

Influencing

Quantity

Frequency

Meas. Quantity/

Meauring Range

600.00 mV

6.0000 V

...

600.00 V

Sphere of Influence

> 15 Hz ... 45 Hz

> 65 Hz ...

1 kHz

> 1 kHz ... 20 kHz

Intrinsic Error

±( ... % rdg. + ... d)

METRAHIT E XTRA

METRAHIT E

TECH

METRAHIT E SPECIAL

METRAHIT E

BASE

3 + 30 3 + 30

2 + 30

3 + 30

—

> 15 Hz ... 45 Hz

> 65 Hz ...

1 kHz

> 1 kHz ... 20 kHz

> 20 kHz ... 100 kHz

1000.0 V

> 15 Hz ... 45 Hz

> 65 Hz ...

1 kHz

600.00

μA

...

10.0000 A

> 1 kHz ... 10 kHz

> 15 Hz ... 45 Hz

> 65 Hz ... 10 kHz

2 + 9

1 + 9

3 + 9

3.5 + 30

2 + 9

3 + 30

3 + 10

3 + 9

—

3 + 9

—

600 mV /

6 V / 10 V

> 65 Hz ... 1 kHz — 3 + 30

E BASE

Power limiting: frequency x voltage max. 6 x 10

V x Hz for U > 100 V

The accuracy specification for frequency response is valid within a display value range of 10% to 100% of the measuring range for both measuring modes with the TRMS converter in the AC and (AC+DC) ranges.

METRAHIT E XTRA : Frequency response up to 100 kHz, > 50 kHz + 2.5%

METRAHIT E TECH : Frequency response up to 20 kHz,

METRAHIT E SPECIAL : Frequency response up to 20 kHz,

METRAHIT E BASE : Frequency response up to 1 kHz

GMC-I Messtechnik GmbH 59

Technical Data

Influencing

Quantity

Sphere of

Influence

Measured Quantity /

Measuring Range

1 ... 3

Crest factor CF

> 3 ... 5

Except for sinusoidal waveshape

V , A

Influence Error

± 1 % rdg.

± 3 % rdg.

Reference Conditions

Ambient temperature

Relative humidity

+23 ° C ±2 K

40 ... 75%

Measured qty. frequency 45 ... 65 Hz

Measured qty. waveshape sine

Battery voltage 3 V ±0.1 V

Influencing Qty.

Sphere of Infl.

75%

Relative humidity

3 days

Battery voltage instrument off

1.8 to 3.6 V

Measured Quantity

, A, Ω, Hz, dB, °C

V , A, Ω, Hz, dB, °C

Influence Error

1 x intrinsic error included in intrinsic error

Influencing

Quantity

Common Mode

Interference

Voltage

Series Mode

Interference

Voltage

Sphere of Influence

Interference quantity max. 1000 V

50 Hz ... 60 Hz, sine

Measured Quantity /

Measuring Range

6 V , 60 V

600 V

1000 V

Interference quantity: V ,, respective nominal value of the meas. range, max. 1000 V , 50 Hz ... 60 Hz, sine

Interference quantity max. 1000 V

Damping

> 120 dB

> 80 dB

> 70 dB

> 60 dB

> 50 dB

> 110 dB

Response Time (after manual range selection)

Measured Quantity /

Measuring Range

Response Time

Digital Display

Measured Quantity Jump Function

V , V , dB

AV , A

600

Ω ... 6 MΩ

60 M Ω

Continuity

°C (Pt 100)

60 nF ... 600 μF

>10 Hz

1.5 s

2 s

5 s

< 50 ms max. 3 s

1.5 s max. 2 s

1.5 s

From 0 to 80% of upper range limit value

From

∞ to 50% of upper range limit value

From 0 to 50% of upper range limit value

Internal Clock

Time format

Resolution

Accuracy

Temperature influence

TT.MM.JJJJ hh:mm:ss

0.1 s

±1 minute per month

50 ppm/K

60 GMC-I Messtechnik GmbH

Data Interface

Type Optical via infrared light through the housing

Data transmission

(data transfer)

Protocol

Baud Rate

Functions

Serial, bidirectional (not IrDa compatible)

Device specific

38,400 baud

– Select/query measuring functions and parameters

– Query/transmit momentary measurement data

– Read out stored measurement data

The USB X-TRA plug-in interface adapter (see accessories) is used for adaptation to the PC’s USB port.

Internal Measured Value Storage (METRAHIT E XTRA only)

Memory capacity 16 Mbit (2 MByte) for approx. 60,000 measured values with time stamp

Technical Data

Power Supply

Battery

Service life

2 ea. 1.5 V mignon cell (2 ea. size AA), alkaline manganese per IEC LR6

(2 ea. 1.2 V NiMH rechargeable battery also possible)

With alkaline manganese: approx. 200 hours

Battery test Battery capacity display with battery symbol in 4 segments: .

Querying of momentary battery voltage via menu function.

Power OFF function The multimeter is switched off automatically:

– If battery voltage drops to below approx.

1.8 V

– If none of the keys or the rotary switch are activated for an adjustable duration

(10 to 59 min.), and the multimeter is not in the continuous operating mode

Power pack connector socket

(METRAHIT E XTRA only) If the NA X-TRA power pack (see accessories) has been plugged into the instrument, the batteries are disconnected automatically.

Rechargeable batteries can only be recharged externally.

GMC-I Messtechnik GmbH 61

Technical Data

Display

LCD panel (65 mm x 36 mm) with analog and digital display including unit of measure, type of current and various special functions

Background illumination

Background illumination is switched off approximately 1 minute after it has been activated.

Analog

Display

Scaling

Polarity display

Overflow display

Measuring rate

LCD scale with bar graph or pointer, depending upon A .diSP parameter setting

With 4 division lines each

1 bar/pointer corresponds to 2,500 digits at the digital display for High Resolution

60,000 digits

With automatic switching

With the symbol

40 per second and display refresh

(U and I)

Digital

Display / Char. Height 7-segment characters / 15 mm

Number of places

Overflow display

Polarity display

Measuring rate

59,999 steps

“ 0L” is displayed for ≥60,000 digits

“–” (minus sign) is displayed if plus pole is connected to “ ⊥”

10 measurements per second;

40 per second with Min/Max function except with capacitance, frequency and duty cycle measuring functions

Refresh Rate 2 times per sec., every 500 ms (Standard*: noFiL=OFF)

5 x/s (Parameter noFiL=on)

* All specifications refer to the default update rate with measuring parameter noFiL = OFF (default).

Acoustic Signals

For voltage

For current

Intermittent signal at above 1000 V

Intermittent signal at above 10 A

Continuous signal at above 16 A

Fuse for METRAHIT E XTRA , METRAHIT E TECH

Fuse FF (UR) 10 A/1000 V AC/DC,

10 x 38 mm, switching capacity:

30 kA at 1000 V AC/DC, protects the current input socket in the

600 μA to 10 A ranges

62 GMC-I Messtechnik GmbH

Technical Data

Electrical Safety

METRAHIT E XTRA , METRAHIT E TECH , METRAHIT E BASE per IEC 61010-1:2010/VDE 0411-1:2011

Safety class

Measuring category CAT III

Operating voltage

Pollution degree

1000 V

Test voltage 6.7 kV~

CAT IV

600 V

Ambient Conditions

Accuracy Range

Operating temp. range

Storage temp. range

Relative humidity

Elevation

Deployment

0 °C ... +40 °C

−10 °C ... +50 °C

−25 °C ... +70 °C (withoaut batteries) max. 75%, no condensation allowed to 2000 m

Indoors; outdoors only within specified ambient conditions

METRAHIT E SPECIAL

Special device for measurements at current transformers without fuse in the electrical circuit

Safety class II

Measuring category 600 V CAT II

Pollution degree

Test voltage

3.5 kV~

Electromagnetic Compatibility (EMC)

Interference emission

Interference immunity

EN 61326-1: 2006, class B

EN 61326-1: 2006

EN 61326-2-1: 2006

Mechanical Design

Housing

Dimensions

Weight

Protection

Impact resistant plastic (ABS)

200 x 87 x 45 mm

(without protective rubber cover)

Approx. 0.35 kg with batteries

Housing: IP 52

Table Excerpt Regarding Significance of the IP Code

IP XY

(1st digit X)

Protection against penetration of solid particles

Dust protected

IP XY

(2nd digit Y)

Protection against penetration by water

Dripping (15

° inclination)

GMC-I Messtechnik GmbH 63

Maintenance – Calibration

9 Maintenance and Calibration

Attention!

Disconnect the instrument from the measuring circuit before opening the battery compartment lid or fuse cover in order to replace batteries or fuses!

Battery

The current battery charge level can be queried in the “ 1nfo” menu:

MEASURE

SETUP

1nFo

FUNC

ENTER bAtt: 2.75 V.

9.1

Displays – Error Messages

Message Function

FUSE

Meaning

Current measurement Blown fuse

In all operating modes Battery voltage has fallen below 1.8 V

0L Measurement Indicates overflow

9.2

Batteries



Note

Removing the Batteries During Periods of Non-Use

The integrated quartz movement draws power from the batteries even when the instrument is switched off. It is advisable to remove the batteries during long periods of non-use for this reason (e.g. vacation). This prevents excessive depletion of the battery, which may result in damage under unfavorable conditions.



Note

Battery Replacement for METRAHIT E XTRA

Stored measurement data are not lost when the batteries are replaced. The selected operating parameters remain in memory, although date and time must be reentered.

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 battery leakage has occurred, carefully and completely clean the electrolyte from the instrument with a damp cloth, and replace the batteries before using the instrument.

If the “ ” symbol appears at the display, the batteries should be replaced as soon as possible. You can continue working with the instrument, but reduced measuring accuracy may result.

The instrument requires two 1.5 V batteries in accordance with

IEC R 6 or IEC LR 6, or two equivalent rechargeable NiMH batteries.

GMC-I Messtechnik GmbH

Replacing the Batteries

Attention!

Disconnect the instrument from the measuring circuit before opening the battery compartment lid in order to replace the batteries.

Ð Set the instrument face down onto the working surface.

Ð Turn the slotted screw on the lid with the battery symbols counterclockwise.

Ð Lift off the lid and remove the batteries from the battery compartment.

Ð Insert two new 1.5 V mignon batteries into the battery compartment, making sure that the plus and minus poles match up with the provided polarity symbols.

Ð When replacing the battery compartment lid, insert the side with the guide hooks first.

Tighten the screw by turning it clockwise.

Ð Please dispose of depleted batteries in accordance with environmental protection regulations!

9.3

Fuse (METRAHIT E XTRA and METRAHIT E TECH only)

Testing the Fuse

The fuse is tested automatically:

• When the instrument is switched on with the rotary switch in the A position

• When the instrument is already on and the rotary switch is turned to the A position

• In the active current measuring range when voltage is applied

Maintenance – Calibration

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.

fuse

DC Blown Fuse

Replacing the Fuse

If a fuse should blow, eliminate the cause of overload before placing the instrument back into service!

Attention!

Disconnect the instrument from the measuring circuit before opening the fuse cover in order to replace the fuse!

Ð Set the instrument face down onto the working surface.

Ð Turn the slotted screw on the cover with the fuse symbol counterclockwise.

Ð Lift off the cover and pry the fuse out using the flat side of the fuse cover.

Ð Insert a new fuse. Make sure that the fuse is centered, i.e. between the tabs at the sides.

Ð When replacing the fuse cover, insert the side with the guide hooks first.

Tighten the screw by turning it clockwise.

Ð Dispose of the blown fuse with the trash.

GMC-I Messtechnik GmbH 65

Maintenance – Calibration

Attention!

Use specified fuses only!

If fuses with other blowing characteristics, other current ratings or other breaking capacities are used, the operator is placed in danger, and protective diodes, resistors and other components may be damaged.

The use of repaired fuses or short-circuiting the fuse holder is prohibited.



Note

Testing the Fuse with the Instrument Switched On

After inserting the fuse with the instrument switched on, the instrument must be switched off briefly and then switched back on, or briefly switched to a non-current measuring range and then back to the “A” measuring range.

If contact is poor or the fuse is blown, FUSE appears at the display.

9.4

Housing Maintenance

No special maintenance is required for the housing. Keep outside surfaces clean. Use a slightly dampened cloth for cleaning. Avoid the use of cleansers, abrasives or solvents.

9.5

Return and Environmentally Sound Disposal

The instrument is a category 9 product (monitoring and control instrument) in accordance with ElektroG (German electrical and electronic device law). This device is RoHS-compliant. 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 devices in accordance with WEEE 2012/19/EU and ElektroG with the symbol shown at the right per DIN EN 50419.

These devices may not be disposed of with the trash.

Please contact our service department regarding the return of old

devices (see page 4).

If you use batteries or rechargeable batteries in your instrument or accessories which no longer function properly, they must be duly disposed of in compliance with the applicable national regulations.

Batteries or rechargeable batteries may contain harmful substances or heavy metal such as lead (PB), cadmium (CD) or mercury (Hg).

They symbol shown to the right indicates that batteries or rechargeable batteries may not be disposed of with the trash, but must be delivered to collection points specially provided for this purpose.

Pb Cd Hg

GMC-I Messtechnik GmbH

Maintenance – Calibration

9.6

Recalibration

The respective measuring task and the stress to which your measuring instrument is subjected affect the ageing of the components and may result in deviations from the guaranteed accuracy.

If high measuring accuracy is required and the instrument is frequently used in field applications, combined with transport stress and great temperature fluctuations, we recommend a relatively short calibration interval of 1 year. If your measuring instrument is mainly used in the laboratory and indoors without being exposed to any major climatic or mechanical stress, a calibration interval of

2-3 years is usually sufficient.

During recalibration* in an accredited calibration laboratory

(DIN EN ISO/IEC 17025) the deviations of your instrument in relation to traceable standards are measured and documented. The deviations determined in the process are used for correction of the readings during subsequent application.

We are pleased to perform 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 fulfill the requirements of a quality management system per

DIN EN ISO 9001.

9.7

Manufacturer’s Guarantee

All METRAHIT digital multimeters and calibration instruments are guaranteed for a period of 3 years after shipment. The manufacturer’s guarantee covers materials and workmanship. Damages resulting from use for any other than the intended purpose or operating errors, as well as any and all consequential damages, are excluded.

The calibration certificate confirms that the product conformed to the specified technical data at the time of calibration. We guarantee the observance of the specified technical data within the admissible tolerance limits for a period of 12 months from delivery.

* Verification of specifications or adjustment services are not part of the calibration. For products from our factory, however, any necessary adjustment is frequently performed and the observance of the relevant specification is confirmed.

GMC-I Messtechnik GmbH 67

Accessories

10 Accessories

10.1 General

The extensive accessories available for our measuring instruments are checked for compliance with currently valid safety regulations at regular intervals, and are expanded as required for new applications. Currently up-to-date accessories which are suitable for your measuring instrument are listed at the following web address along with photo, order number, description and, depending upon the scope of the respective accessory, data sheet and operating instructions: www.gossenmetrawatt.de

( → Measuring Technology - Portable → Digital Multimeters →

METRA HIT ... → Accessories).

10.2 Technical Data for Measurement Cables

(included: KS17-2 safety cable set)

Electrical Safety

Maximum Rated Voltage

Measuring Category

Maximum Rated Current with safety cap applied without safety cap applied

* Exception METRAHIT E SPECIAL : 600 V

600 V 1000 V 1000 V*

CAT IV CAT III CAT II

1 A

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1 A

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16 A

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Application KS17-2

Attention!

In conformity with standard DIN EN 61010-031, measurements in an environment according to measuring category III and IV may only be performed with the safety cap applied to the test probe of the measurement cable

(Exception: METRAHIT E SPECIAL

is only approved for measuring category 600 V CAT II).

For establishing contact in 4 mm jacks you have to remove the safety cap by levering out the snap lock of the safety cap with another sharp object (e.g. the second test probe).

10.3 NA X-TRA Power Pack (not included)

Use only the power pack from GMC-I Messtechnik GmbH in combination with your instrument. This assures operator safety by means of an extremely well insulated cable, and safe electrical isolation (nominal secondary ratings: 5 V / 600 mA). Installed batteries are disconnected electronically if the power pack is used, and need not be removed from the instrument.

Ambient Conditions (EN 61010-031)

Temperature

Relative humidity

Pollution degree

–20 °C ... + 50 °C max. 80%

68 GMC-I Messtechnik GmbH

10.4 Interface Accessories (not included)

USB X-TRA Bidirectional Interface Adapter

This adapter makes it possible to connect multimeters of the

STARLINE series which are equipped with a serial IR interface to the USB port at a PC. The adapter allows for data transmission between the multimeter and the PC.

METRAwin 10 PC Analysis Software

METRAwin 10 PC software is a multilingual, measurement data logging program for recording, visualizing, evaluating and documenting measured values from METRA HIT multimeters.

Details on the system requirements are given in the installation instructions of METRAwin 10/METRAwin 45.

* runs under any IBM compatible Windows operating system

GMC-I Messtechnik GmbH

Accessories

Index

11 Index

Numerics

0.diSP

................................................................... 51

A.diSP

................................................................... 51

Addr

...................................................................... 55

APoFF

................................................................... 51

Automatic Shutdown

Disabling ....................................................... 17

Specifying a Time ......................................... 17

AUTO-Range Function ......................................... 18

B bAtt

....................................................................... 50

Batteries

Charge Level

................................................. 64

Charging Level .............................................. 13

Periods of Non-Use

...................................... 64

Replacement

................................................. 65

bEEP

..................................................................... 52

Cable Resistance ................................................. 39

Capacitance Measurement ................................. 40

Clear Memory ....................................................... 24

Continuity Test ..................................................... 36

Current Clamp Sensors

................................. 44, 45

Current Clamps Transformer ............................... 46

Current Measurement

Notes

............................................................. 41

Scope of Functions ....................................... 41

dAtE ................................................................. 50, 52

dbrEF

..................................................................... 51

Default Settings .................................................... 53

Diode Test

............................................................. 37

Display Illumination

.............................................. 16

Duty Cycle Measurement ..................................... 34

Error Messages

.................................................... 64

Fuse

Characteristic Values ....................................62

Housing Maintenance .......................................... 66

Interfaces

Accessories ...................................................69

States

............................................................13

irStb ....................................................................... 55

itEMP

..................................................................... 50

Manufacturer’s Guarantee

................................... 67

Measured Value Storage

DATA Function

..............................................21

Min-Max Values ............................................22

Measurement Cables ........................................... 68

Measuring Category

Characteristic Values ....................................63

Significance

.....................................................8

Measuring Range Selection

Automatic

...................................................... 18

Manual

.......................................................... 18

Memory

Ending Recording ......................................... 24

Querying Occupancy .................................... 24

Start Recording ............................................. 23

noFiL ......................................................................50

OCCUP ...................................................................50

Overview

Keys and Connections .................................. 12

Parameters ................................................... 49

Power Pack

Accessories

.................................................. 68

Connector Socket Position

........................... 15

Initial Start-Up

............................................... 16

Product Support

......................................................3

Product Support Hotline

.........................................3

R rAtE

........................................................................50

Recalibration Service ........................................4, 67

Remote ..................................................................38

Repair and Replacement Parts Service .................4

Replacing the Fuse

...............................................65

Resistance Measurement .....................................35

Return of Old Devices

...........................................66

GMC-I Messtechnik GmbH

Safety Precautions ................................................. 8

Software Enabling .................................................. 3

Standard Equipment .............................................. 2

Switching the Instrument On

Manual

..........................................................16

Via PC

............................................................16

Symbols

Digital Display

...............................................13

Instrument .....................................................15

Rotary Switch Positions ................................14

Temperature Measurement

With Resistance Thermometers

...................39

With Thermocouples .....................................38

tiME

................................................................. 50, 52

Training

................................................................... 3

Use for Intended Purpose

.................................... 10

V vErSion

.................................................................. 50

Voltage Comparator

....................................... 29, 31

Voltage Measurement

Notes

.............................................................26

Over 1000 V .................................................33

Scope of Functions .......................................26

WEEE Mark

........................................................... 15

GMC-I Messtechnik GmbH

Index

Edited in Germany

•

Subject to change without notice

•

A pdf version is available on the internet

GMC-I Messtechnik GmbH

Südwestpark 15

90449 Nürnberg • Germany

Phone +49 911 8602-111

Fax +49 911 8602-777

E-Mail [email protected]

www.gossenmetrawatt.com

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