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- Measurement of resistive object type:
+ welded and soldered connections, equipotential bonding, earth wire,
+ terminals and connectors, rail welded joints, cables and wires,
+ measurement 4-pole method.
- Measurement of inductive object type:
+ coils (motors and transformers), low resistance coils.
- Range/ Resolution
+ 0...999,9μΩ /0,1μΩ (Current test 10 A)
+ 1,0000...1,9999 mΩ /0,0001 mΩ (Current test 10 A)
+ 2,000...19,999 mΩ /0,001 mΩ (Current test 10 A)
+ 20,00...199,99 mΩ /0,01 mΩ (Current test 1 A)
+ 200,0...999,9 mΩ /0,1 mΩ (Current test 0,1 A)
+ 1,0000...1,9999 Ω /0,0001 Ω (Current test 0,1 A )
+ 2,000...19,999 Ω /0,001 Ω (Current test 10 mA)
+ 20,00...199,99 Ω /0,01 Ω (Current test 0,1 mA)
+ 200,0...1999,9 Ω /0,1 Ω (Current test 0,1 mA)
-Accuracy : ±(0,25% m.v. + 2 digits)
Includes:
- Test lead 3m (2 pcs.) WAPRZ003DZBB
- „Crocodile” clip K03; black (4 pcs.) WAKROBL30K03
- Kelvin vice K06 (2 psc.) WAKROKELK06
- Carrying case L1 WAFUTL1
- Cable for battery charger WAPRZLAD230
- Ni-MH battery package 4,8V 3Ah WAAKU03
- RS-232 serial transmission cable WAPRZRS232
- Double pin Kelvin probe (2 pcs.) WASONKEL2OGB
- Hanging straps WAPOZSZE1
- User manual
- Calibration certificate issued by calibration laboratory (MMR-630) LSWPLMMR630
Compare model: SKB MIKO-7, SKB MIKO-8, Metrel MI 3250, Sonel MMR 630, Vanguard WRM-10
Electric security:
- type of insulation: double, according to EN 61010 - 1 and IEC 61557
- measurement category: CAT III 300 V acc. to EN 61010 - 1
- protection class acc. to EN 60529: IP54
Other technical data:
- meter’s power supply: battery package SONEL/Ni-MH 4,8 V
- battery charging time: approx. 2,5 hours
- number of measurements with the current of 10 A: 300
- auto-off time: 120 seconds
- immunity to interference: additional error ≤1% for voltage 50 Hz ≤100 mV RMS
- maximum leads resistance for the 10 A current: 0,1 Ω
- 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
Rated operational conditions:
- operation temperature: 0...+40°C
- storage temperature: -20...+60°C
MMR-620 microohmmeter conforms the following directives
or standards according to CE requirements.
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.
Resistance measurement
| MMR-630 | Current | Accuracy | |
| Range | Resolution | ||
| 0...999,9μΩ | 0,1μΩ | 10 A | ±(0,25% m.v. + 2 digits) |
| 1,0000...1,9999 mΩ | 0,0001 mΩ | ||
| 2,000...19,999 mΩ | 0,001 mΩ | ||
| 20,00...199,99 mΩ | 0,01 mΩ | 1 A | |
| 200,0...999,9 mΩ | 0,1 mΩ | 0,1 A | |
| 1,0000...1,9999 Ω | 0,0001 Ω | ||
| 2,000...19,999 Ω | 0,001 Ω | 10 mA | |
| 20,00...199,99 Ω | 0,01 Ω | 0,1 mA | |
| 200,0...1999,9 Ω | 0,1 Ω | 0,1 mA | |
- input impedance of the voltmeter: ≥200 kΩ
„m.v.” - measured value.





