MPU-1
Catalog index: WMGBMPU1
Leakage Current Alarm Signale
Continuous AC monitoring with Sonel MPU-1 for complete safety in power networks.
The Sonel MPU-1 leakage current alarm device is designed to monitor (measure) leakage current in AC, low and medium voltage power networks. It is used to carry out measurements whose results determine the safety status of the monitored installation in terms of leakage current flow. The device allows its users to set a threshold of leakage current flowing through a network, above which a visual/acoustic alarm will be triggered.
Features
The most important features of the MPU-1 instrument include:
- continuous monitoring of alternating current flowing through earthing,
- measurement on one or two clamps simultaneously, in the case of measurement using two clamps, the current value is summed, and this provides the capability of measuring spun poles with independent clamps for each component pole,
- diode indicator of operating mode,
- alarm in the event of flow of current higher than the alarm threshold (factory setting 1 A), sound and visual alarm (speaker built into the housing),
- measurement with flexible Sonel F-series coil (Rogowski coil) with a max. length of 2 m,
- measurements in low- and medium-voltage networks with frequency of 50 Hz or 60 Hz,
- automatic selection of measuring range,
- monitoring of battery level,
- ergonomic operation.
Specification
Leakage current measurement with clamp:
| Display range | Resolution | Accuracy |
| 0,1..9,9 A | 0,01 A | ±(5% m.v. + 2 digits) ±(5% m.v. + 2 digits) |
| 10..99 A | 0,1 A |
- frequency: 50Hz or 60Hz
- F-1 clamps
Technical specifications:
- Insulation type.
- Measurement category.
- Degree of housing protection acc. to EN 60529: IP67.
- Max. noise voltage AC+DC, for which measurement is possible: 24 V.
- Max. measured nosie voltage: 100 V.
- Power supply: SONEL bartery package NiMH 9,4V 2,4Ah.
- Operating time for standby mode: >20h.
- Operating time for alarm mode: >3h.
- Dimensions: 125 x 150 x 95 mm.
- Weight (including battery): ok. 1,1 kg.
- Working temperature: -10..+50 ˚C.
- Charger working temperature: +10..+35 ˚C.
- Reference temperature: 23 ±2 ˚C.
- Storage temperature: -20..+80 ˚C.
- Relative humidity: 20..85%.
- Relative nominal humidity: 40..60%.
- Altitude (above sea level): <2000m.
- Quality standard: design and manufacturing are ISO 9001 compliant.
- The product meets EMC requirements (immunity for industrial environment) according to the following standards: EN 61326-1:2006 and EN 61326-2-2:2006.
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