GOSSEN METRAWATT METRAHIT X-TRA, METRAHIT PRO, METRAHIT BASE User Manual

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METRAHIT⏐X-TRA⏐PRO⏐BASE

TRMS Digital Multimeters

• Digital Hand-Held Multimeter with RMS Measurement V

• 4½-place display (11,999 digits), with display illumination

• DKD calibration certificate

METRAHIT⏐BASE

• Current measurement via clip-on current sensor: The transformation ratio is adjustable from 1 mV:1 mA to 1 mV:1 A, and is accounted for by the display.

METRAHIT⏐X-

• Additional “low-resistance” (1 MΩ) alternating voltage measurement

• 1 kHz / -3 dB low-pass filter can be activated

• Direct current measurement from 10 nA to 10 A, and 16 A for short periods

METRAHIT⏐X-TRA

• Temperature measurement with Pt100(0) resistance thermometer

• Broad range capacitance measurement

• Frequency and keying ratio measurement at 2 to 5 V signals or up to 1 MHz

• Data memory and internal clock, power pack adapter socket

• Bidirectional infrared interface for exchanging data with a PC

AC TRMS

, V

AC+DC TRMS

TRAand METRAHIT⏐PRO

, VDC, Hz (V), Hz (A), Ω, V , °C/°F (TC)

QUALITY MANAGEMENT SYSTEM

DQS Certified per

DIN EN ISO 9001:2000

reg. no.1262

3-349-350-03

2/3.06

Applications

The multimeter is suitable for universal use in electrical engineering, electrical installation, laboratory applications, telecommunication, training etc.

The instrument can be used in the field and is equipped with internal, mains-independent supply power.

Features

Three Connector Jacks with Automatic Blocking Sockets (ABS) *

All current ranges are implemented via a single connector jack which prevents any possibility of operator error. Beyond this, the automatic blocking sockets prevent incorrect connection of the measurement cables, as well as selection of the wrong measured quantity. Danger to the user, the instrument and the device under test resulting from operator error is thus ruled out.

* Patented (patent no. DE 40 27 801 C2 and US 5,166,599)

Overload Protection

The instrument is safeguarded for up to 1000 V in all measuring functions by overload protection. Voltages of greater than 1000 V and current of greater than 10 or 16 A are indicated acoustically. Dangerous contact voltages are indicated when the 1 kHz lowpass filter is activated. The FUSE display appears at METRAHIT⏐X- instruments in order to indicate that the fuse for the current measuring input has blown.

TRA and METRAHIT⏐PRO

RMS Value with Distorted Waveshape

The utilized measuring method allows for waveshape independent RMS measurement (TRMS AC and AC+DC) for voltage and current (METRAHIT⏐X-

TRA up to 20 kHz).

Activatable Filter for V AC Measurement

A 1 kHz low-pass filter can be activated if required, for example when measuring motor voltage at electronic frequency converters. The input signal is checked by a voltage comparator for dangerous voltages as long as the low-pass filter is activated.

Measuring 5 V Square-Wave Signals with the METRAHIT⏐X-

TRA

This function makes it possible to test circuits and transmission cables by measuring the frequency and the keying ratio of pulses with amplitudes of 2 to 5 V and frequencies of 100 Hz to 1 MHz.

Analog Scale for Quick Trend Display – Bar Graph or Pointer

The analog scale (with additional negative range for zerofrequency quantities) allows for faster recognition of measured value fluctuation than is possible with a digital display. The instrument can be switched back and forth between bar graph and pointer display.

Automatic or Manual Measuring Range Selection

Measured quantities are selected by means of a rotary switch and a function key. The measuring range is automatically matched to the measured values. The measuring range can also be selected and fixed manually with a key.

GMC-I Gossen-Metrawatt GmbH

METRAHIT⏐X-TRA⏐PRO⏐BASE

TRMS Digital Multimeters

Fast Acoustic Continuity Test

Testing for short circuiting and interruption is possible with the selector switch in the position. The threshold value for acoustic signaling can be set to 1, 10, 20, 30, 40 or 90 Ω.

Automatic Storage of Measured Values *

The DATA function automatically saves the digitally displayed measured value after settling in. Acoustic signaling is also used to indicate whether the new measured value deviates from the initial reference value by less or more than 0.1% of the measuring range.

* Patented

Storage of Min-Max Values

Comparable to the slave-pointer function of an analog instrument, the device saves the highest and lowest measured values after the MIN/MAX function has been activated or reset. These extreme values can be queried at the display.

Battery Charging Status – Power Saving Circuit

The battery charging status is indicated by means of four symbols.

The device is switched off automatically if the measured value remains unchanged for a period of between 10 and 59 minutes (adjustable), and if none of the controls are activated during this time. Automatic shutdown can be deactivated by switching the instrument to continuous operation.

METRAHIT⏐X-

TRA: The infrared interface can be switched off in the

standby mode.

Protective Cover for Harsh Conditions

The instrument is protected against damage in the event of impacts or dropping by means of a soft rubber cover with tilt stand and test probe holder. The rubber material also assures that the instrument does not wander if it is set up on a vibrating surface.

Infrared Data Interface with METRAHIT⏐X-

TRA

The device can be remote configured, and momentary and stored measurement data can be read out via the bidirectional infrared interface. The USB⏐X-TRA interface adapter and METRA⏐VIEW software are required to this end (see accessories). Interface protocol and device driver software for LabVIEW

(National

Instruments™) are available upon request.

Selection List

Function

V AC / Hz (Ri = 10 MΩ) TRMS

V AC (Ri = 1 MΩ) TRMS

V AC+DC (Ri = 10 MΩ) TRMS

V DC (Ri = 10 MΩ)

... 1 MHz 5 V AC

Keying ratio as %

Hz (V AC)

Bandwidth, V AC

A AC / Hz

A AC+DC TRMS

A DC

Fuses

A AC / Hz

A AC+DC

A DC

Hz (A AC)

Clip factor Resistance Ω

Continuity

Diode ... 5.1 V

Temperature TC (K)

Temperature RTD

Capacitance

Min-Max / data hold

4 MBit memory

IR Interface

Power pack adapter socket

Protection

Measuring category

TRMS

1 )

Ri = 1 M

For 15,400 measured values, sampling rate adjustable from 0.1 second to 9 hours IP 65 in preparation

TRMS

METRA

HIT⏐X-

TRA

METRAHIT⏐PRO

•

Filter

1kHz 1kHz

•

Filter

1kHz 1kHz

•••

• ——

... 100 kHz ... 100 kHz ... 100 kHz

15 Hz ... 20 kHz 15 Hz ... 10 kHz 15 Hz ... 1 kHz

100 μA

1/10/100 mA

1 A / 10 (16) A

10 A / 1000 V 10 A / 1000 V —

—— • —— • —— •

... 30 kHz ... 30 kHz ... 30 kHz

—— •

•••

• ——

•••

• ——

IP 52

1000 V CAT III

600 V CAT IV

•

1 A / 10 (16) A

IP 52

1000 V CAT III

600 V CAT IV

METRA

Filter

HIT⏐B

•

—

IP 52

1000 V CAT II I

600 V CAT IV

Included

ASE

DKD Calibration Certificate

The multimeters are furnished with an internationally valid DKD calibration certificate (recognized by EA and ILAC). A

fter the specified calibration interval has elapsed (recommended interval: 1 to 3 years), the multimeters can be inexpensively recalibrated in our own DKD calibration laboratory.

1multimeter 1

pair of safety measurement cables (1.5 m) with 4 mm test probes,

1000 V CAT III, 600 V CAT IV (KS17-2) 2 batteries, 1.5 V, type AA 1 condensed operating instructions, English/German 1 CD ROM (operating instructions in English and German),

METRA⏐V

IEW demo software in preparation

1 DKD calibration certificate

Applicable Regulations and Standards

IEC/EN 61010, part 1:2001/VDE 0411-1:2002

DIN EN 61326 VDE 0843, part 20

DIN EN 60529 DIN VDE 0470, part 1

2 GMC-I Gossen-Metrawatt GmbH

Safety requirements for electrical equipment for measurement, control and laboratory use

Electrical equipment for control technology and laboratory use – EMC requirements

Test instruments and test procedures – degrees of protection provided by enclosures (IP code)

1 protective rubber cover (METRA HIT⏐X-

TRA only)

Voluntary Manufacturer’s Guarantee

24 months for materials and workmanship 1 to 3 years for calibration (depending upon application)

Characteristic Values

⏐

METRAHIT⏐X-TRA⏐PRO⏐BASE

TRMS Digital Multimeters

Resolution at Upper

Meas.

Function

Hz (A )

10)

Measuring Range

100 mV 10 μV11MΩ 11 MΩ // < 50 pF 0.09 + 5 with ZERO 1 + 30 (> 300 d) 1)1 + 30 (> 300 d)

1 V 100 μV11MΩ 11 MΩ // < 50 pF 0.05 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)

X-TRA

PRO

BASE

TRA

X-

Hz (V) Hz (A)

MHz

X-

TRA

X-

TRA

°C/°F

Values of less than 200 digits are suppressed in the mV range. 15 (20) ... 45 ... 65 Hz At 0° ... + 40° C Displays up to max. 5.1 V, “OL” in excess of 5.1 V. Applies to measurements at film capacitors 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. 3 x 10 Overload capacity of the current measurement input: See current measuring ranges for maximum current values. Input sensitivity, sinusoidal signal, 10% to 100% of the measuring range Plus sensor deviation Residual value deviates within 1 ... 30 d from the zero point due to TRMS converter when probe tips are short-circuited

10 V 1 mV 10 MΩ 10 MΩ // < 50 pF 0.05 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)

100 V 10 mV 10 MΩ 10 MΩ // < 50 pF 0.05 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)

1000 V 100 mV 10 MΩ 10 MΩ // < 50 pF 0.09 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)

100 μA 10 nA 12 mV 12 mV 0.5 + 5 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

1 mA 100 nA 120 mV 120 mV 0.5 + 3 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

X-TRA

10 mA 1 μA 16 mV 16 mV 0.5 + 3 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

100 mA 10 μA 160 mV 160 mV 0.5 + 3 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

1 A 100 μA 40 mV 40 mV 0.9 + 10 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

PRO

METRAHIT

10 A 1 mA 600 mV 600 mV 0.9 + 10 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

Factor: 1:1/10/100/1000

0.1/1/10/100 A 100 mV

1/10/100/1000 A 1 V

10/100/1000/10000 A

100 Ω 10 mΩ < 1.4 V Approx. 300 μA0.2 + 5

1kΩ 100 mΩ < 1.4 V Approx. 250 μA0.2 + 5

10 kΩ 1 Ω < 1.4 V Approx. 100 μA0.2 + 5

100 kΩ 10 Ω < 1.4 V Approx. 12 μA0.2 + 5

1MΩ 100 Ω < 1.4 V Approx. 1.2 μA0.2 + 5 10 MΩ 1kΩ < 1.4 V Approx. 125 nA 0.5 + 10 40 MΩ 10 kΩ < 1.4 V Approx. 20 nA 2.0 + 10

100 Ω —0.1Ω Approx. 8 V Approx. 1 mA const. 1 + 5

5,1 V

10 nF 10 pF 10 MΩ 0.7 V 1 + 6

100 nF 100 pF 1 MΩ 0.7 V 1 + 6

1 μF1nF100kΩ 0.7 V 1 + 6 10 μF10nF12kΩ 0.7 V 1 + 6

100 μF100nF3kΩ 0.7 V 5 + 6

1000 μF1μF3kΩ 0.7 V 5 + 6

100.00 Hz 0.01 Hz

1.0000 kHz 0.1 Hz

10.000 kHz 1 Hz

100.00 kHz 10 Hz 10 Hz

30.00 kHz 10 Hz 10 Hz

100 Hz ... 1 MHz 100 Hz 100 Hz 0.05 + 3 > 2 V ... 5 V

2.0 ... 98 % — 0.01% 100 Hz ... 1 kHz 1 Hz 0.1 R > 2 V ... 5 V

5.0 ... 95 % — 0.01% ... 10 kHz 1 Hz 0.1 R > 2 V ... 5 V

10 .... 90 % — 0.01% ... 100 kHz 1 Hz 0.1 R > 2 V ... 5 V

Pt100

– 200.0 ...

X-TRA

+850.0° C – 150.0 ...

Pt1000

X-TRA

+850.0° C

– 250.0 ...

(NiCr-Ni)

+1372.0° C

Range Limit

11,999 1199

Voltage drop, approx. at upper range limit

Input Input impedance

10 V Plus clip-on current sensor error

Open-circuit voltage

— 1 mV Approx. 8 V Approx. 1 mA const. 0.5 + 3

0.1 °C

... 20 (1) kHz sinusoidal. See influence error on page 4.

Input Impedance

~ /

Voltage measurement input approx. 1 MΩ

Discharge resist. U

V x Hz for U > 100 V

(V socket)

Meas. current at

range limit

0 max

min

1Hz

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

±(0.5% rdg. + 10 d)

±(... % rdg. + ... d)

0.05 + 3

±(... % rdg. + ... d)

0.3 + 15

1% + 5 K

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

Intrinsic Error

under Reference Conditions

10)

±(1% rdg. + 30 d)

> 300 d

with active ZERO function

with ZERO function active

10)

±(1% rdg. + 30 d)

> 300 d

Overload Capacity

Value Time

1000 V

DC AC

RMS

sine

0.2 A

10 A: 5 min

16 A: 30 s

Measurement input

1000 V RMS Max. 10 s

1000 V

DC AC

RMS

sine

1000 V

DC AC

RMS

sine

Hz (V) 6):

Hz (A )6):

1000 V

Hz (A):

1000 V Max. 10 s

1000 V

DC/AC

RMS Sine

Continu-

ous

Continu-

ous

Max. 10 s

GMC-I Gossen-Metrawatt GmbH 3

METRAHIT⏐X-TRA⏐PRO⏐BASE

TRMS Digital Multimeters

Internal Clock

Time format DD.MM.YYYY hh:mm:ss Resolution 0.1 s Accuracy ±1min. per month Temperature Influence 50 ppm/K

Influencing Quantities and Influence Error

Influencing

Quantity

Tem pe ra tu re

With zero balancing

Influenc-

ing Qty.

Frequency

Power limiting: frequency x voltage max. 3 x 106 V x Hz

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⏐X-TRA: frequency response up to 20 kHz, METRAHIT⏐P METRAHIT⏐B

Influencing

Quantity

Crest factor CF

Except for sinusoidal waveshape

Sphere of

Influence

–10° C ... +21° C

and

+25° C ... +50° C

Meas. Qty. /

Meas. Range

> 15 Hz ... 45 Hz 3 + 30 3 + 30

100.00 mV

1.0000 V

100.00 V

1000.0 V

100.00 μA

10.0000 A

100 mV /

1 V / 10 V

RO: frequency response up to 10 kHz, ASE: frequency response up to 1 kHz

> 65 Hz ... 1 kHz 2 + 30 3 + 30

> 15 Hz ... 45 Hz 2 + 9 3 + 9

...

> 65 Hz ... 1 kHz 1 + 9 3 + 9

> 15 Hz ... 45 Hz 2 + 9 3 + 9

> 65 Hz ... 1 kHz 1 + 9 3 + 9

> 15 Hz ... 45 Hz

...

> 65 Hz ... 10 kHz

> 65 Hz ... 1 kHz — 3 + 10

Sphere of

Influence

1 ... 3

> 3 ... 5

Measured Quantity /

Measuring Range

V 0.2 + 10

V 0.4 + 10

100 Ω ... 1 MΩ 0.5 + 10

> 1 MΩ 1 + 10

mA/A 0.5 + 10

mA/A 0.8 + 10

10 nF ... 100 μF1 + 5

°C/°F (Pt100/Pt1000) 0.5 + 10 °C/°F thermocouple K 0.2 + 10

Sphere of Influence

> 1 kHz ... 10 kHz 3 + 30 —

> 1 kHz ...10/20kHz

> 1 kHz ... 10 kHz 3 + 9 —

Measured Quantity/

Measuring Range

V, A

Hz 0.2 + 10

METRAHIT⏐X-

METRAHIT⏐PRO

3 + 9 —

3 + 10 —

Influence Error

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

TRA

METRAHIT⏐BASE

Influence Error

± 1% rdg. ± 3% rdg.

Intrinsic Error

±( ... % rdg. + ... d)

Influencing

Quantity

Common Mode Interference Voltage

Series Mode Interference Voltage

Sphere of Influence

Interference quantity max. 1000 V V > 120 dB

Interference quantity max. 1000 V

50 Hz ... 60 Hz, sine

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

Interference quantity max. 1000 V V > 110 dB

Measured Quantity /

Measuring Range

1 V , 10 V > 80 dB

100 V > 70 dB

1000 V > 60 dB

V> 50dB

Reference Conditions

Ambient temperature +23 °C ±2K Relative humidity 40 ... 75% Measured qty. frequency 45 ... 65 Hz Measured qty. waveshape Sine Battery voltage 3 V ±0.1 V

Response Time (after manual range selection)

Measured Quantity /

Measuring Range

V, V

AV , A

100 Ω ... 1 MΩ 2s

10/40 MΩ 5s

Continuity < 50 ms

°C (Pt 100) Max. 3 s

10 nF ... 100 μFMax. 2s

1 000 μFMax. 7s

>10 Hz 1.5 s

Response Time

Digital Display

1.5 s

Measured Quantity

of upper range limit value

Data Interface (METRAHIT⏐X-TRA only)

Ty pe Data transmission Serial, bidirectional (not IrDa compatible) Protocol Device specific Baud rate 38,400 baud Functions – Select/query measuring functions

The USB⏐X-

used for adaptation to the PC’s USB port.

TRA plug-in interface adapter (see accessories) is

Optical via infrared light through the housing

and parameters

–

Query momentary measurement data

– Read out stored measurement data

Internal Measured Value Storage (METRA

waveshape

From 0 to 80%

From ∞ to 50%

From 0 to 50%

HIT⏐X-

Damping

TRA

only)

Influencing

Quantity

Relative humidity

Battery voltage 1.8 to 3.6 V ditto Included in intrinsic error

4 GMC-I Gossen-Metrawatt GmbH

Sphere of

Influence

75%

3 days

instrument off

Measured Quantity Influence Error

V, A, Ω, F, Hz, °C 1 x intrinsic error

Memory capacity 4 MBit / 540 kB for approx. 15,400

measured values with date and time stamp

METRAHIT⏐X-TRA⏐PRO⏐BASE

TRMS Digital Multimeters

Power Supply

Battery 2 ea. 1.5 V mignon cell (2 ea. size AA),

Service life with alkaline manganese: approx. 200

Battery test Battery capacity display with battery

Power OFF function Multimeter is switched off automatically:

Power pack socket (METRAHIT⏐X-

TRA)If the NA⏐X-TRA power pack has been

alkaline manganese per IEC LR6 (2 ea. 1.2 V NiMH rechargeable battery also possible)

hours

symbol in 4 segments: . Querying of momentary battery voltage via menu function.

– If battery voltage drops to below prox. 1.8 V – If none of the keys or the rotary switch

are activated for an adjustable duration of 10 to 59 minutes, and the multimeter is not in the continuous operation mode

plugged into the instrument, the batteries are disconnected automatically. Rechargeable batteries can only be recharged externally.

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.

Fuse for METRAHIT⏐X-TRA/METRAHIT⏐PRO

Fuse FF(UR)10A/1000VAC/DC;

10 mm x 38 mm, Switching capacity: 30 kA at 1000 V AC/ DC, protects the current measurement input in the 100 μA through 10 A ranges

Electrical Safety

Per IEC 61010-1:2001/VDE 0411-1:2002

Safety class Measuring category II I IV Operating voltage 1000 V 600 V Fouling factor Tes t vol t age

6.7 kV~

Electromagnetic Compatibility (EMC)

Interference emission EN 61326: May 2004, class B Interference immunity EN 61326: May 2004, appendix E

IEC 61000-4-2: Dec. 2001 Feature B

8 kV atmos. discharge

4 kV contact discharge IEC 61000-4-3: Dec. 2001 Feature A

3V/m

Ambient Conditions

Analog

Display

Scaling

Polarity display With automatic switching Overflow display With the symbol Measuring rate 40 measurements per second and display

Digital

Display / char. height 7-segment characters / 15 mm Number of places 4½ place 11,999 steps Overflow display “OL” is displayed for ≥12,000 digits Polarity display “–” (minus sign) is displayed

Measuring rate 10 and 40 measurements per second

Refresh rate 2 times per sec., every 500 ms

LCD scale with bar graph or pointer, depending on the selected parameter setting

With 4 division lines each, 1 bar/pointer corresponds to 500 digits at the digital display

refresh

if plus pole is connected to “⊥”

with the Min-Max function except for the capacitance, frequency and keying ratio measuring functions

Acoustic Signals

For voltage Intermittent signal at above 1000 V For current Intermittent signal at above 10 A

continuous signal at above 16 A

Accuracy range 0 °C ... +40 °C Operating temp. range Storage temp. range −25° C ... +70° C (without batteries) Relative humidity Max.75%, no condensation allowed Elevation To 2000 m Deployment

−10° C ... +50° C

Indoors, except within specified ambient conditions

Mechanical Design

Housing Impact resistant plastic (ABS) Dimensions 200 x 87 x 45 mm

(without protective rubber cover) Weight Approx. 0.35 kg with batteries Protection Housing: IP 52 (pressure equalization by

Table excerpt regarding significance of the IP code

IP XY

digit X)

Protection against pene-

tration of solid particles

5 Dust protected 2 Dripping (15° inclination) 6 Dust-proof 5 Jet-water

means of the housing)

IP XY

(2nd digit Y)

Protection against

penetration by water

GMC-I Gossen-Metrawatt GmbH 5

METRAHIT⏐X-TRA⏐PRO⏐BASE

TRMS Digital Multimeters

Accessories for Operation at a PC (METRA

Interface Adapter for USB Connection

The USB⏐X- following functions:

• Configure the METRAHIT⏐X-

• Transmit live measurement data to the PC.

• Read out data from memory at the METRAHIT⏐X-TRA. The adapter does not require a separate power supply.

Its maximum baud rate is 38,400 baud. A CD ROM is included which contains current drivers for Windows operating systems.

TRA bidirectional interface adapter includes the

TRA from a PC.

HIT⏐X-

TRA

only)

SoftwareMETRA⏐VIEW

METRA⏐VIEW PC software is a multilingual, measurement data logging program for recording, visualizing, evaluating and documenting measured values from METRAHIT⏐ multimeters.

Communications between the PC and the measuring instrument(s) is established via the bidirectional IR-USB interface adapter.

Depending upon device type, one or several of the following operating modes are possible:

Demo software with limited functions is included with the instrument, or can be downloaded via the Internet.

Measured Value Display

• Display of measured value, measured quantity and range as a numeric decimal value (simulation of a device display, see left half of figure 1)

• Scalable pointer display with 1, 2 or 4 indicators (see bottom right portion of figure 1). Each pointer can also be displayed as a full screen image. Graphic read-out of the pointer to a printer.

• Measured value display as a digital indicator

• Parallel representation and recording of 4 measuring channels as a storable data table (see upper right portion of figure 1) (date, time of measurement, measured value and quantity, measuring range)

Figure 1: 3-Channel Representation with Table and Pointer Display

Configuring Measuring Instrument Parameters

Remote configuration and querying of device-specific functions and parameters, for example measuring function, measuring range and memory parameters:

Start/stop recording Clear memory Display memory occupancy Adjust recording speed in 3 groups

0.1 ... 50 seconds 1 ... 50 minutes 1 ... 9 hours

as time per measured value.

Online Recording of Measurement Data

Read in, display and record currently measured live measurement data from the interconnected measuring instruments.

• No. of meas. channelsUp to

• Start recording Manual or triggered by measured value,

Reading Out Data from Memory

Read-out and display of recorded measured values from device memory and storage as a text file.

4 (additional channels in preparation)

0.1 sec. to 5 min. per measurement, max. 2000 measurements per channel Recording: consecutive number, measuring time, measured value and measured quantity, recording as text file, or alternatively as Excel file.

Graphic Representation

A data table which has been saved to memory can be converted into a curve diagram with the following characteristics by simply pressing a key:

• Scalable scope display with up to 4 channels

• Selectable sampling rate and scaling

• Selectable background and characteristic curve colors, selection of normal of heavy line thickness

The display can be subsequently saved as a BMP file, or read out to a printer.

Figure 2: 4-Channel Graphic Representation

6 GMC-I Gossen-Metrawatt GmbH

METRAHIT⏐X-TRA⏐PRO⏐BASE

TRMS Digital Multimeters

Order Information Transport Accessories

Designation Type Article Number METRAHIT⏐X-

4½-place (12,000 digits) TRMS multimeter with direct, alternating and pulsating voltage measurement (TRMS values), frequency measurement, resistance measurement, continuity test, diode measurement andtemperature measurement with type K thermocouples LCD with 15 mm characters, analog bar graph and background illumination Measuring categories: 600 V/CAT IV, 1000 V/CAT III

All multimeters include the KS17-2 measurement cable set, two mignon batteries, condensed operating instructions, CD ROM, DKD calibration certificate

Same as above but with direct, alternating and pulsating current measurement (RMS values), additional broad range capacitance measurement, precision temperature measurement with Pt100 or Pt1000 platinum resistance thermometers, frequency and keying ratio measurement, with power pack socket and IR interface, 4 MB data memory, protective rubber cover

Same as above but with additional direct, alternating and pulsating current measurement (RMS values), METRA HIT⏐P

Same as above but with current measurement via clip-on current sensor with voltage output (see accessories) instead of direct current measurement, and adjustable clip parameters.

TRA, METRAHIT⏐PRO and METRAHIT⏐BASE Multimeters

METRA

HIT⏐X-

TRA

M240A

RO M242A

METRA

HIT⏐B

ASE

M241A

HitBag Cordura Belt Pouch

For METRAHIT⏐ multimeters (with/without protective rubber cover) and METRAport

F836 Ever-Ready Case

For multimeter (without protective rubber cover) and accessories

HC20 Hard Case

For multimeter (with/without

protective rubber cover)

and accessories

Accessories for operation at a PC (for METRAHIT⏐X-

IR-USB bidirectional interface adapter USB⏐X-

IEW software METRA⏐VIEW Z211G

METRA⏐V

Voltage measuring accessories

Probe for voltage measurement in power installations to 1000 V KS30 GTZ 3204 000 R0001

High-voltage probe, 3 kV/3 V HV3 GTZ 3431 011 R0001

High-voltage probe, 30 kV/30 V (for direct voltage only) HV30 GTZ 3431 001 R0001

Accessories for temp. measurement with resistance thermometer (METRA

Pt100 temperature sensor for surface and immersion measurement,

-40 to +600° C Z3409 GTZ 3409 000 R0001

Pt1000 temperature sensor for measurement in gases and liquids,

-50 to +220 ° C TF220 Z102A Pt100 oven sensor, -50 to +550° C TF550 GTZ 3408 000 R0001

Ten adhesive Pt100 temperature sensors, -50 to +550° C TS Chipset GTZ 3406 000 R0001

Replacement fuse (METRAHIT⏐X-

Fuses (pack of 10) FF (UR) 10 A /

Power pack (for

Protective rubber cover and carrying strap GH⏐X-

METRA

HIT⏐X-

TRA and METRAHIT⏐PRO only)

1000 V AC/DC Z109L

TRA

only)

NA⏐X-TRA Z218G

TRA only)

TRA Z216C

TRA Z104C

HIT⏐X-

TRA

For multimeters (with/with-

F829 Carrying Pouch

out protective rubber cover)

only)

Designation Type Article Number

Protective rubber cover and carrying strap

Imitation leather without protective rubber cover for METRAHIT⏐ and METRAmax F829 GTZ 3301 000 R0003

Cordura belt pouch for multimeters and METRAport

Imitation leather ever-ready case with cable compartment F836 GTZ 3302 000 R0001

Ever-ready case for 2 METRAHIT⏐, 2 adapters and accessories F840 GTZ 3302 001 R0001

Hard case for one METRAHIT⏐ and accessories HC20 Z113A

Hard case for two METRAHIT⏐ and accessories HC30 Z113A

METRA

HIT⏐

HitBag Z115A

For additional information regarding accessories please refer to our Measuring Instruments and Testers catalog.

and accessories

GMC-I Gossen-Metrawatt GmbH 7

METRAHIT⏐X-TRA⏐PRO⏐BASE

TRMS Digital Multimeters

Current Measuring Accessories Suitable for

All current sensors and transformers are equipped with a connector cable (1.2 to 1.5 m long) with 4 mm safety banana plugs

Type Designation Measuring Range Meas.

GOSSEN METRAWATT METRAHIT X-TRA, METRAHIT PRO, METRAHIT BASE User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual