Operation Manual
Table Of Contents
- 1 Safety Features and Precautions
- 2 Initial Start-Up
- 3 Selecting Measuring Functions and Measuring Ranges
- 4 Display (LCD)
- 5 Measured Value Storage – DATA / MIN-MAX Key
- 6 Voltage and Frequency Measurement
- 7 Current Measurement
- 8 Resistance Measurement
- 9 Continuity Testing
- 10 Diode Testing
- 11 Capacitance Measurment
- 12 Frequency Measurement – Duty Cycle Measurement
- 13 Temperature Measurement with Pt100 and Pt1000
- 14 Temperature Measurement with Type K Thermocouple
- 15 Characteristic Values
- 16 Maintenance
- 17 Multimeter Messages
- 18 Repair and Replacement Parts Service Calibration Center* and Rental Instrument Service
- 19 Product Support

GMC-I Messtechnik GmbH 25
Service Life with alkaline-manganese batteries: approx. 100 hours
Battery Test Battery capacity display with battery symbol in
4 segments: “ ”
Battery Saving Circuit
The instrument is switched off automatically
– if the measured value remains unchanged for a period of approximately 10
minutes, and if none of the control elements are operated during this period.
Automatic shutdown can be disabled.
– If battery voltage drops to below approx. 1.8 V
Fuses
300
A to 10 A range
– Resettable 15A/240VAC/50VDC miniature circuit breaker,
– A fuse link is additionally connected in series to the
auto-fuse, the blowing or absence of which is detected
automatically (“FUSE” is displayed):
T16A/500VAC, 6,3 mm x 32 mm
Switching capacity 1.5 kA at 500 V AC and ohmic load
Electrical Safety
Safety Class II per IEC/EN 61010-1:2010/VDE 0411-1:2011
Measurement Category
CAT I I
Operating Voltage 300 V
Pollution degree 2
Test Voltage 2.3 kV~ per IEC/EN 61010-1:2010/VDE 0411-1:2011
Electromagnetic Compatibility (EMC)
Interference Emission EN 61326-1:2006 Class B
Interference Immunity EN 61326-1:2006
EN 61326-2-1:2006
Ambient Conditions
Accuracy range 0 C
+40 C
Operating Temp. 10 C
+50 C
Storage Temperature 25 C
+70 C (without batteries)
Relative Humidity max. 75%, no condensation allowed
Elevation to 2000 m
Deployment indoors, outdoors: only within the specified
ambient conditions
Mechanical Design
Protection housing: IP 40, connector jacks: IP 20
Table Excerpt Regarding Significance of IP Codes
Dimensions 146 mm x 118 mm x 44 mm
Weight approx. 450 gr. with batteries
IP XY
(1
st
digit X)
Protection against
foreign object entry
IP XY
(2
nd
digit Y)
Protection against the
penetration of water
2 12.5 mm dia. 0 not protected
4 1.0 mm dia. 0 not protected