Monnit wireless AC Current Meters measure the RMS current of an alternating current (AC) system using a current transformer (CT) that wraps around the "hot" wire of a two wire (hot, common, ground(optional)) power system. The sensor reports Minimum RMS current, maximum RMS current, average RMS current, and amp hours to the iMonnit system. The iMonnit system is capable of generating watt hour or kilowatt hour readings as well.
Monnit Industrial Sensors come in an IP65, NEMA 4X, CE rated, sealed, and weatherproof enclosure. They are powered by a single, replaceable, Industrial grade 3.6 V battery (included).
An optional solar powered version is also available. The solar powered version includes a Lithium Iron Phosphate rechargeable battery in conjunction with a solar power cell to keep the battery charged and at optimal capacity. If there is no light present at the solar cell, the battery alone could continue to power the sensor for up to 5 years.
WARNING: This AC current meter is for monitoring AC voltage only. Do Not Use with DC voltage.
* Actual range may vary depending on environment.
** Battery life is determined by sensor reporting frequency and other variables.
AC Current Meter Specifications |
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| Accuracy | +/- 2% @ 2 to 150 Arms, +/- .4 Arms @ < 15 Arms |
| Current Transducer Frequency Range | 50 – 100 Hz |
| Absolute Max CT Current | 200 Amps RMS (Arms) |
| Maximum Accurate CT Current | 150 Arms |
| Calibrated Accuracy with Appropriate Offset | +/- 1% @ 2 to 150 Arms, +/- .2 Arms @ < 2 Arms |
| Offset Limits | -1.27 to + 1.27 Arms (default set to +.3 Arms) |
| Measurement Resolution | ~.1 Arms |
Industrial Specifications |
|
| Dimension | 3.7 in x 2.32 in x 1.38 in |
| Max Operating Temperature | -40° to 85°C (-40° to 185°F) |
| Device Range | 300 - 350 ft. non-line-of-sight device range* |
| Supply Voltage | 2.0 - 3.6 V |
| Battery Type | Replaceable 3.6V, 1800mAH (single AA sized) |
| Optimal Battery Operating Temperature | +10°C to +50°C (+50°F to +122°F) |
| Battery Life | Up to 7 Year Battery Life.** |
| Solar Power Option | 5 VDC Solar Panel 600 mAH Rechargeable Battery (>2000 Charge Cycles - 80% of Initial Capacity) Charging Temperature Range: 0° to 45°C (32° to 113°F) Max Temperature Range: -20° to 60°C (-4° to 140°F) |
| Enclosure Material | IP65, NEMA 4X, CE rated, sealed, weatherproof enclosure |
| UL Rating | UL Listed to UL508-4x specifications (File E194432) |
433 MHz Specifications |
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| Operating Frequency | 433 MHz Operating Frequency |
| Certifications | CE Certified and Complies with CISPR 22:2008-09 / EN 55022:2010 - Class B and ETSI EN 300 220-2 V2.4.1 (2012-05) |
