GOSSEN METRAWATT METRAHIT T-COM plus Handheld Multimeter Instruction Manual

: June 13, 2024
: GOSSEN METRAWATT

Table of Contents

GOSSEN METRAHIT T-COM plus Handheld Multimeter
Product Information
Standard Equipment
Safety Instructions
Product Usage Instructions
Battery Replacement
Standard Equipment
Application of measuring cable set KS21-T
Safety Instructions
Observe the following safety precautions
Switching on / off / Light on
Battery Test
Battery Replacement
Select Measuring Function
Measuring Range Selection
Measuring Inputs
DATA-Hold/-Compare
Zero Balancing
Resistance Measurement
Temperature Measurement
Direct Voltage / Pulsating Voltage Measurement
AC Voltage – Frequency, without/with Low-pass Filter
Capacitance Cable Length Measurement
DC/Pulsating/Alternating Current/Frequency Measurement
Measurement with Clip-on Current Transformer
Device and Measuring Parameters
Loop Resistance Measurement Continuity Testing
Insulation Resistance Measurement Measuring Inputs
Capacitance (low disturbance) galv. Signature detection
Technical Data
Insulation Resistance Measurement
Electrical Safety
Electromagnetic Compatibility EMC
Ambient Conditions
Fuse
Internal Fuse Test
Fuse Replacement
Repair and Replacement Parts Service DAkkS Calibration Lab and Rental
Product Support
ABOUT COMPANY
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

GOSSEN METRAHIT T-COM plus Handheld Multimeter

GOSSEN-METRAWATT-METRAHIT-T-COM-plus-Handheld-Multimeter-
fig-1

Product Information

The METRAHITT-COM PLUS is a cable multimeter designed for the measurement of symmetrical copper cable units. It is equipped with a range of features and safety precautions to ensure accurate and safe measurements.

Standard Equipment

1 Cable multimeter
1 Protective rubber cover
1 Cable set KS21-T (1000 V CAT III) consisting of:
- 1 two-core measurement cable (yellow/blue), 2 m long with test probes
- 1 earth connection line (black), 2 m long with test probe
1 Short-form operating instructions German/English*
2 Batteries 1.5 V, type AA inserted in unit
*Detailed operating instructions are available for download on the Internet at www.gossenmetrawatt.com.

Safety Instructions

In order to maintain the flawless condition of the instrument and ensure its safe operation, it is important to read the operating instructions thoroughly and carefully before using the instrument. The following safety precautions should be observed:

Use original fuses only for the current measuring ranges.
Operate the instrument only with batteries inserted to ensure accurate indication of currents and voltages.
Do not operate the device with the fuse or battery compartment cover removed.

Product Usage Instructions

Before using the METRAHITT-COM PLUS, make sure to read the detailed operating instructions available for download at www.gossenmetrawatt.com. The short-form instructions provided here are not a substitute for the detailed instructions.

Battery Replacement

To change the batteries, follow these steps:

Disconnect the instrument from the measuring circuit before opening the battery compartment lid.
Turn the slotted head screw counter-clockwise to remove the battery compartment lid.
Replace the batteries, ensuring correct polarity.
Insert the battery compartment lid, starting with the side with the guide hooks, and then turn the slotted head screw clockwise to secure it.
Note: Always observe the correct polarity of the batteries when replacing them.
For detailed instructions on how to use the various functions and features of the METRAHITT-COM PLUS, refer to the comprehensive operating instructions available for download.

Please make sure to read the detailed operating instructions in pdf format at www.gossenmetrawatt.com.
The short-form instructions are no substitute for the detailed instructions!

Standard Equipment

1 Cable multimeter
1 Protective rubber cover
1 Cable set KS21-T (1000 V CAT III) consisting of:
- 1 ea. two-core measurement cable (yellow/blue),
- 2 m long with test probes,
- 1 ea. earth connection line (black) 2 m long with test probe
1 Short-form operating instructions German/English*
2 Batteries 1.5 V, type AA inserted in unit
Detailed operating instructions are available for download on the Internet at www.gossenmetrawatt.com.

Application of measuring cable set KS21-T

Maximum Rated Voltage	1000 V	1000 V
Measuring Category	CAT III	CAT II
Maximum Rated Current	1 A	16 A
with safety cap applied	·	—
without safety cap applied	—	·

Please observe the maximum values of the electrical safety of the device.

Safety Instructions

In order to maintain the flawless condition of the instrument, and to ensure its safe operation, it is imperative that you read the operating instructions thoroughly and carefully before placing your instrument into service, and that you follow all instructions contained therein.

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 able to recognize contact hazards and take the appropriate safety precautions. Contact hazards exist wherever voltages of more than 33 V (RMS value) and/or 70 V DC occur.
The maximum voltage allowable according to standard between the voltage inputs or all inputs towards earth respectively is equal to 600 V, category II / 300 V, category III.
Attention: Unexpected voltages may occur at defective devices, capacitors,…!
The insulation of the measurement cables may not be damaged, cables and plugs may not be interrupted!
No measurements may be made in electrical circuits with corona discharge (high-voltage)!
Special care is required when measurements are made in HF electrical circuits where dangerous pulsating voltages may be present.
Measurements under moist ambient conditions are not permissible.
Do not overload the measuring ranges beyond their allowable capacities!
The input of the current measuring ranges is fitted with a fuse. Use original fuses only, see label on the housing or technical data section!
Only operate the instrument with batteries inserted. Otherwise dangerous currents or voltages will not be indicated and your instrument may be damaged.
The device may not be operated with the fuse or battery compartment cover removed.

Switching on / off / Light on

Battery Test

Battery Replacement

2 Batteries: IEC LR6 / AA – AM3 – Mignon

Disconnect the instrument from the measuring circuit before opening the battery compartment lid! Turn the slotted head screw counter-clockwise for this purpose. Observe the correct polarity of the batteries!
When refitting the battery compartment lid the side with the guide hooks must be inserted first. Then turn the slotted head srew clockwise.

Select Measuring Function

Measuring Range Selection

Measuring Inputs

DATA-Hold/-Compare

Zero Balancing

Resistance Measurement

Temperature Measurement

Diode Testing

GOSSEN-METRAWATT-METRAHIT-T-COM-plus-Handheld-Multimeter-
fig-11

Direct Voltage / Pulsating Voltage Measurement

GOSSEN-METRAWATT-METRAHIT-T-COM-plus-Handheld-Multimeter-
fig-12

AC Voltage – Frequency, without/with Low-pass Filter

Capacitance Cable Length Measurement

DC/Pulsating/Alternating Current/Frequency Measurement

Measurement with Clip-on Current Transformer

Device and Measuring Parameters

GOSSEN-METRAWATT-METRAHIT-T-COM-plus-Handheld-Multimeter-
fig-17

Loop Resistance Measurement Continuity Testing

Insulation Resistance Measurement Measuring Inputs

Capacitance (low disturbance) galv. Signature detection

GOSSEN-METRAWATT-METRAHIT-T-COM-plus-Handheld-Multimeter-
fig-20

Technical Data

at 0C … + 40C
with function ZERO active
Power limiting: 6 · 106 V · Hz (max. 600 V 1 kHz)
max. current values see current measuring range

Insulation Resistance Measurement

Electrical Safety

Protection class II
per IEC 61010-1:2010/EN 61010-1:2010/VDE 0411-1:2011
Measuring Category CAT II / CAT III
Nominal Voltage 600 V / 300 V
Pollution degree 2
Test Voltage 3,5 kV~
per IEC 61010-1/EN 61010-1
Protection Housing: IP54 (pressure equalization by means of the housing)
Extract from table on the meaning of IP codes

Electromagnetic Compatibility EMC

Interference Emission
EN 61326-1:2013 class B
Interference Immunity
EN 61326-1:2013, EN 61326-2-1:2013

Ambient Conditions

Accuracy range 0C … + 40 C
Operating temperature –10 C … + 50 C
Storage temperature without battery – 25 C … + 70 C
relative humidity 40 … 75 %
no condensation allowed
Elevation up to 2000 m maximum

Fuse

700 V AC DC 6,3 mm x 32 mm
breaking capacity: 50 kA (Min 10 kA)
If you use other fuses than the one indicated above you forfeit your product guarantee.

Internal Fuse Test

Fuse Replacement

Disconnect the instrument from the measuring circuit before opening the fuse compartment lid! Turn the (captive) slotted head screw counter-clockwise for this purpose. Remove the fuse with the flat end of the fuse compartment lid.
When refitting the fuse compartment lid the side with the guide hooks must be inserted first. Then turn the slotted head srew clockwise.