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.