Datasheet

MMR-620 & MMR-630
v.1.0
·
·
·
·
·
·
·
·
M ement of resistive bject type
- welded and soldered connections, equipotential bonding, earth wire,
- terminals and connectors, rail welded joints, cables and wires,
- measurement 4-pole method.
M ement of inductive bject type:
- coils (motors and transformers), low resistance coils.
Range selection autoranging or manual (m ement of inductive
bject type).
Selectable measurement mode adjusted to object type:
- for resistive objects - fast mode (3 seconds),
- for inductive objects - long mode with automatic discharge after measurements
(or with lower accuracy - shorter mode).
Selectable measurement mode adjusted to application:
- normal mode - after pushing „START” button,
- automatic mode - as test leads are connected to the object meters
automatically starts measurement with dual direction current flow and gives
average result - what eliminates eventual DC voltage on tested object,
- continuous mode - every 3 seconds for resistive objects or continuous
measurement for inductive objects.
Window mode:
- this option enables setting an upper and a lower limit between which the
average measurement result is bound to appear. The results outside of this
range will be indicated by two long audible signals and the symbols.
MMR-630 is designated not to be effected by interference up to 20mV and
to show noises from 20 to 100mV (so in edge conditions even 5 times
higher than measured drop of potential).
of 990 measurement results and with ability to transfer data to a
PC
easur o
easur o
easur
o
Memory
.
:
Electric security:
- EN 61010-1 and IEC 61557
- measurement category CAT III 300V acc. to EN 61010-1
- protection class acc. to EN 60529 IP54
Other technical data:
- meter’s power supply battery package SONEL/Ni-MH 4,8V
- battery charging time approx. 2,5 hours
- number of measurements with the current of 10A 300
- auto-off time 120 seconds
- immunity to interference additional error 1% for voltage 50 Hz 100mV RMS
- maximum leads resistance for the 10A current 0,1Ω
- maximum inductance of the tested object 40H
- accuracy of the test current ±10%
- resistance measurement time:
- with the selected resistive object type with the bidirectional current 3 seconds
- with the selected inductive object type, dependant on the resistance
and inductance of the object a few minutes (max. 10)
- dimensions 295 x 222 x 95 mm
- weight approx. 1,7 kg
type of insulation double, according to
≤ ≤
Range
Resolution
Accuracy
±(0,25% m.v. + 2 digits)
Current
MMR-630
0...999,9μΩ
1,0000...1,9999mΩ
2,000...19,999mΩ
20,00...199,99mΩ
200,0...999,9mΩ
1,0000...1,9999Ω
2,000...19,999Ω
20,00...199,99Ω
200,0...1999,9Ω
0,1μΩ
0,0001mΩ
0,001mΩ
0,01mΩ
0,1mΩ
0,0001Ω
0,001Ω
0,01Ω
0,1Ω
10A
0,1A
Rated operational conditions:
- operation temperature 0...+40°C
- storage temperature -20...+60°C
„m.v.” - measured value.
10mA
1mA
0,1mA
Resistance measurement
- input impedance of the voltmeter: 200kΩ≥
1A
Directive: Low Voltage Directive (LVD) 73/23/EEC, 93/68/EEC.
Standards: EN 61010-1:2001 Safety requirements for electrical equipment for
measurement, control and laboratory use. General requirements .
EN 61010-031:2002: Safety requirements for electrical equipment for
measurement, control and laboratory use. Safety requirements for hand-held
probe assemblies for electrical measurement and test.
Directive: Electromagnetic compatibility (EMC) 89/336/EEC, 92/31/EEC, 93/68/EEC.
Standards: EN 61326:1997+A1:1998+A2:2001 Electrical equipment for measurement,
control and laboratory use - EMC requirements.
MMR-620 & MMR-630 microohmmeter
or standards according to CE requirements.
conforms the following directives
Range
Resolution
Accuracy
±(0,25% m.v. + 2 digits)
Current
Voltage for the
full scale
Voltage for the
full scale
MMR-620
0...999μΩ
1,000...1,999mΩ
2,00...19,99mΩ
20,0...199,9mΩ
200...999mΩ
1,000...1,999Ω
2,00...19,99Ω
20,0...199,9Ω
200...1999Ω
1μΩ
0,001mΩ
0,01mΩ
0,1mΩ
1mΩ
0,001Ω
0,01Ω
0,1Ω
1Ω
10A
1A
200mV
200mV
0,1A
10mA
1mA
0,1mA
20mV
20mV