Gossen MetraWatt METRAmax 2 User manual

3-348-792-03
3/4.06
GMC-I Gossen-Metrawatt GmbH
METRAmax 2
Analog Multimeter
Range of Applications
•Schools
• Vocational schools
•Craftshops
The handheld multimeter METRAmax 2 was developed in coop-
eration with a renowned German manufacturer of educational
systems and thus meets the actual demands set in teaching and
vocational training.
Thanks to its excellent overload capacity, optional zero setting
either at mid-scale or left as well as automatic battery shutdown,
the meter is not only suited for students’ exercises but also for
balancing tasks and service applications.
Features
Safe handling
The connection sockets and connection plugs of the measure-
ment cables, which are available as accessory equipment, are
protected against accidental contact.
Range selector switch
All measuring ranges and measuring functions can be conve-
niently selected with a clear, central rotary switch.
Rugged housing design
The rugged plastic housing and the spring-loaded bearing jewels
of the moving-coil mechanism protect the meter against damage
in the case of mechanical stress. The protective rubber cover and
the carrying pouch offer special protection under adverse operat-
ing conditions. Both are available as accessories.
Special technical qualities
• „Galvanometer operation“
due to „left“ zero position of the pointer, switchable to „mid-
scale“
• High, constant input impedance
during voltage measurement due to electronic amplifier
• Automatic battery shutdown after 45 minutes
• Expansion of the current measuring range to 10 A
by means of accessory shunt
Applicable Standards and Regulations
IEC 61010-1/EN 61010-1/
VDE 0411-1
Safety requirements for electrical equipment for
measurement, control and laboratory use
– General requirements
EN 60529
VDE 0470 part 1
Test instruments and test methods
Degrees of protection provided by enclosures (IP code)
DIN EN 61326
VDE 0843 part 20
Electrical equipment for measurement, control and
laboratory use – EMC requirements
•Voltage measurement:
0...100/300 mV/1 V=; 0...3 /10 /30 /100 /300 V=/∼
•Current measurement:
0...100 μA/1/10/100 mA/1 /3 A =/∼
•Zero point: selectable on the left or at mid-scale
•Accuracy: Class 2 =/3 ∼

METRAmax 2
Analog Multimeter
2GMC-I Gossen-Metrawatt GmbH
Characteristic Values
Measuring ranges
Influence quantities and nominal ranges of use
Temperature
in the
rangeof0...+40ºC ±2%/10 K at
Frequency for all
measuring ranges ±2.5 % in the range of 30 Hz ... 1.5 kHz
±5 % in the range of 1.5 kHz ... 3 kHz
Display
Mechanism Moving-coil mechanism with core magnet
Scale mirror-backed
Scale length black scale:
87 mm in the range of V, A, 0 ... 3/10
red scale: 62 mm
in the range of V, A, -10/-3 ... 0 ... +3/+10
Accuracy at Reference Conditions
Class 2 for direct current
Class 3 for alternating current
Reference Conditions
Ambient temperature + 23 °C ±2K
Position of use horizontal
Frequency 50 ... 60 Hz
Waveshape and its evaluation
A sinosoidal waveshape is used as the basis for the measurement
of alternating quantities. The meters feature one-way rectification,
are calibrated in RMS values and evaluate the arithmetic mean
value.
Ambient Conditions
Storage temperatures –25 ... 65 °C (without battery)
Relative humidity
max. 75%, no condensation allowed
Power Supply
Battery 9 V flat cell battery
IEC 6 L R61 (IEC 6 F 22)
automatic battery shutdown after 45 min.
Overload Protection
Fusible link F 3,15 H/250 V according to
DIN VDE 0820 part 22/EN 60127-2
protects the current measuring circuits in
the case of overload.
The measurement mechanism is protected
by two diodes with inverse-parallel
connection.
Electrical Safety
Safety class II per IEC 61010-1/EN 61010-1/
VDE 0411-1
Measuring category 300 V CAT III
Nominal voltage 300 V
Contamination degree 2
Test vo l t a g e 3. 7 k V ∼
Electromagnetic Compatibility EMC
Interference emission/
interference immunity EN 61326-1
Mechanical Design
Protection Housing IP 50, Terminals IP 20
Extract from table on the meaning of IP
codes
Dimensions 100 x 140 x 35 mm
Weight approx. 0.3 kg
Standard Equipment
1 multimeter (without cable set)
1 battery
1 operating instructions
Direct and
alternating voltage
Internal resistance Direct and
alternating current
Voltage drop
100 mV 10 MΩ100 μA / 55 mV
300 mV 10 MΩ1mA / 55mV
1V 10MΩ10 mA / 55 mV
3V / 10MΩ1MΩ100 mA / 55 mV
10 V / 10 MΩ1MΩ1A/ 53mV
30 V / 10 MΩ1MΩ3A/ 51mV
100V / 10MΩ1MΩ
300V / 10MΩ1MΩ
IP XY
(1st digit X)
Protection against
foreign object entry
IP XY
(2nd digit Y)
Protection against the
penetration of water
0 not protected 0 not protected
1≥50.0 mm dia. 1 vertically falling drops
2≥12.5 mm dia. 2 vertically falling drops with
enclosure tilted 15°
3≥2.5 mm dia. 3 spraying water
4≥1.0 mm dia. 4 splashing water
5 dust protected 5 water jets
6 dust-tight 6 powerful water jets

Edited in Germany • Subject to change without notice • A pdf version is available on the internet.
METRAmax 2
Analog Multimeter
GMC-I Gossen-Metrawatt GmbH
Thomas-Mann-Str. 16-20
90471 Nürnberg • Germany
Phone [phone]
Fax [phone]
E-Mail [email protected]
www.gossenmetrawatt.com
Accessories
Cable set KS 17-2
Carrying pouch F841
Protective rubber cover GH19
Order Information
For additional information concerning accessories please refer to
• the catalog „Measuring Instruments and Testers“
• our website www.gossenmetrawatt.com
Dimensional drawing
of the carrying pouch
Description Type Article Number
Hand-held analog multimeter METRAmax 2 M102A
Carrying pouch F841 Z104A
Protective rubber cover GH19 Z104B
Cable set (1 pair of measurement
cables) 1.2 m, with VDE-GS symbol
(600 V CAT III 16 A) KS17-ONE Z110K
Cable set (1 pair of measurement
cables) 1.2 m, with VDE-GS symbol
(1000 V CAT III / 600 V CAT IV 16 A) KS17-2 GTY 3620 034 P0002
Protective rubber cover as viewed
from the top
Opening at the bottom for
mechanical zero point setting
Protective rubber cover as viewed
from the bottom
with guide rails for fastening the
test probes