The ALTA Industrial Wireless Three Phase Current Meter (150 Amp) measures the RMS current of an alternating current (AC) system using 3 current transformers (CTs) that wrap around the wires of a three phase power system. The sensor reports Minimum RMS current, maximum RMS current, average RMS current, and duty cycle for each phase and the combined amp hours of all three phases to the iMonnit system. The iMonnit system is capable of generating watt hour or kilowatt hour readings as well based on a user specified RMS voltage.
Monnit MNS2-9-IN-3P-150 Features1,200+ foot range12+ year battery life80+ wireless sensorsBank-level AES securityUp in 15 easy setupGlobal ready (900, 920, 868 & 433 MHz) Absolute Max CT Current: 200 Amps RMS (Arms)Maximum Accurate CT Current: 150 ArmsFrequency Measurement Range: 50–100 HzAccuracy: +/- 2% @ 2 to 150 Arms, +/- 0.4 Arms @ < 15 ArmsCalibrated Accuracy with Appropriate Offset: +/- 1% @ 2 to 150 Arms, +/- 0.2 Arms @ < 2 ArmsOffset Limits: -1.27 to + 1.27 Arms (default set to +0.3 Arms)Measurement Resolution: Average: 0.01 ArmsMax: 1 ArmsMin: 1 ArmsDuty: 1%Amp Hours: 0.1 Amp HoursDimension: 67 mm x 49 mm x 42 mm (24 mm inner diameter)Weight: 28.7 oz.UL Rating: UL Listed to UL508-4x specifications (File E194432)
ALTA Industrial SpecificationsSupply Voltage: 2.0 - 3.8 VDCBattery Type: Replaceable 3.6V, 1800mAH (single AA sized)Battery Life: At 1 hour heartbeat setting, battery will last up to 10 years.**Max Operating Temperature: -40° to 85°C (-40° to 185°F)Optimal Battery Operating Temperature: +10°C to +50°C (+50°F to +122°F)Solar Power Option: 3.0 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 enclosureUL Rating: UL Listed to UL508-4x specifications (File E194432)Dimension: 3.7 in x 2.32 in x 1.38 in
ALTA 900 MHz SpecificationsOperating Frequency: 900 MHz Operating FrequencyCertifications: Complies with Part 15 of the FCC Rules. (FCC ID: ZTL-G2SC1)Complies with Industry Canada standards. (IC: 9794A-G2SC1)Device Range: Device Range Up to 1,200 ft. non-line-of-sight, wireless device range*Security: Encrypt-RF® (Diffie-Hellman Key Exchange + AES-128 CBC)