Monnit MNS2-9-IN-3P-500D Wireless 500 Amp Three-Phase Current Meter
Brand:
Monnit
Part #:
MNS2-9-IN-3P-500D
Condition: 
Brand New
Brand New $352.10 /Each
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Manufacturer warranty Description
Features:
- Measures:
- Minimum, Maximum, and Average in Amp-RMS
- Current Accumulation in Amp-hours
- Resolution: 0.1-0.3 Amp-RMS
- Accuracy:
- Uncalibrated: ±2% (typical)
- Calibrated: ±1% (typical)
- Configurable thresholds for critical condition monitoring
- Industrial 150 Amp and 500 Amp options come standard with a detachable lead
- Wireless range of 2,000+ feet through 18+ walls
- Frequency-Hopping Spread Spectrum (FHSS)
- Best-in-class interference immunity
- Best-in-class power management for longer battery life
- Encrypt-RF Security (Diffie-Hellman Key Exchange + AES-128 Cipher Block Chaining (CBC) for sensor data messages)
- Sensor logs 2,000 to 4,000 readings if the gateway connection is lost (non-volatile flash, persists through power cycling):
- 10-minute Heartbeats ≈ 22 days
- 2-hour Heartbeats ≈ 266 days
- Automatic over-the-air updates to sensor firmware (future-proof)
- Free iMonnit Basic Online Wireless Sensor Monitoring and Notification System to configure sensors, view data, and send alerts via SMS, email, and voice call
Applications:
- Current monitoring
- Current usage
- Amperage monitoring
- Amp-hour metering
ALTA Wireless Current Meters measure one or three AC RMS signals produced by current transformers (CTs). The analog current measurements are periodically converted to digital current measurements based on a user-configurable measurement interval. The meters report the minimum, maximum, and average current per CT, and the accumulated current over time at a user-configurable reporting interval or Heartbeat.
Single-phase current meters can be calibrated for improved accuracy. Also, iMonnit can scale the accumulated current into kilowatt-hours for power monitoring.
Technical details
Main features
- Weight 14.55 oz (CT only), 15.35 oz (CT + Industrial Connector)
- Frequency Range 50-100 Hz
- Accuracy ± (2% + 1.4 A RMS)
- Lead Length 0.9 m (3 ft)
- Amp 500
- Security Encrypt-RF (256-bit key exchange and AES-128 CTR)
- Operating Humidity 5 to 85% RH (non-condensing)
- Specification Value
- Wireless Range 2,000+ ft. through 18+ walls with the ALTA XL Gateway
- Calibrated Accuracy with Appropriate Offset ± (1% + 0.7 A RMS)
- Data Logging Sensor logs 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through power cycling): 10-minute Heartbeats = ~22 days, 2-hour Heartbeats = ~266 days
- Wireless Protocol ALTA Proprietary Frequency-Hopping Spread Spectrum (FHSS)
- Wireless Transmission Power (EIRP) 50 mW (900 MHz), 25 mW (868 MHz), 10 mW (433 MHz)
- Battery Voltage Range 2.0 to 3.8 VDC
- Absolute max CT current 600 A RMS
- Maximum accurate CT current 500 A RMS
- Measurement resolution ~0.3 A RMS
- Typical Deadband ~1.45 A RMS
- Operating Altitude (non-pressurized environments) -15.2 to 1,982 m (-50 to 6,500 ft)
- Storage Altitude (non-pressurized environments) -15.2 to 3,048 m (-50 to 10,000 ft)
- Offset Compensation Limits -327.68 to +327.68 A RMS (default set to +1.45 A RMS)
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