Plug & play sensors remotely monitor energy use

Monnit’s Enterprise AC Current Meters installs quickly to provide insights on machine health or system performance via current usage. These sensors track the minimum, maximum, and average RMS current, as well as amp hours. If power consumption spikes or plummets beyond user-defined limits, an alert is sent via text, email, or call.

Fluctuating power consumption often indicates that a machine needs maintenance, is nearing the end of its service life, or an unexpected supply issue. These current sensors are also ideal for submetering.

Monnit’s AC Current Meter measures 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. The AC Current Meters are available with an option current transducers;

• Low Current: 0-20 amp
• Medium Current: 0-150 amp

Get amperage alerts

To measure current, clip the CT around only a single wire of the AC system (clipping around a hot and neutral wire at the same time will result in 0 current readings). After the sensor powers on and connects to the gateway it will begin taking measurements based on the averaging interval (5 seconds default). It will report data to iMonnit every heartbeat or if the current goes outside of the aware thresholds set in iMonnit. The sensor reports amp hours, max RMS current, min RMS current, and average RMS current. iMonnit can also generate watt hour or kilowatt hour readings if a default RMS voltage is set in iMonnit. The AC Current meter can also:

• Data logging for accumulated amp hour readings
• Can notify based on current levels or changes in current levels

The AC Current Meters come standard with two replaceable AA batteries. The typical battery life is approximately 10 years.

WARNING: This AC current meter is for monitoring AC voltage only. Do Not Use with DC voltage.

Features:

• Impressive wireless range of up to 1,200 feet through walls
• Frequency-hopping spread spectrum (FHSS)
• Improved interference immunity
• Improved power management for longer battery life
• Encrypt-RF® Security (Diffie-Hellman Key Exchange + AES-128 CBC for sensor data messages)
• Over-the-air updates
• Free iMonnit basic online wireless sensor monitoring and notification system to configure sensors, view data and set alerts via SMS text and email
• Stores 2000 to 4000 readings if gateway connection is lost (non-volatile flash, persists through the power cycle)
  • 10-minute heartbeats = ~ 22 days
  • 2-hour heartbeats = ~ 266 days

Applications

• Current Monitoring
• Current Usage
• Amperage monitoring
• Amp hour meter
• Breaker panel monitoring
• Conveyor systems motors
• Factory management
• Watt Hour Meter
• Kilowatt hour Meter

Gateway Options for Seamless IoT Data Communication

Monnit offers a range of gateway options designed to facilitate wireless sensor data communication within IoT networks. These gateways, serve as crucial conduits for transmitting sensor data to the iMonnit software platform and play a pivotal role in ensuring seamless and efficient data transmission for IoT applications.

Click here to explore the diverse range of gateway devices available >>

Manage Your Monnit Sensors with iMonnit Cloud-based Software

Monnit’s Sensor Monitoring Software, iMonnit, stands as a cutting-edge cloud-based platform and central hub tailored for the seamless management of Monnit sensors. With a focus on data security, all information is safeguarded on dedicated servers running Microsoft SQL Server. This intuitive online user interface serves as a command centre for arranging, monitoring, and modifying device settings to suit individual requirements.

OneTemp provides complimentary activation and setup services for new iMonnit accounts, while a free mobile app empowers users to maintain control at all times. Whether opting for the basic version or upgrading to iMonnit Premiere, users can unlock the full spectrum of features that enrich the Monnit experience.

Click here to explore the software options >>

*Circuits cannot withstand negative voltage. Please take care when installing batteries.
**At temperatures above 100°C, it is possible for the board circuitry to lose programmed memory.

*Circuits cannot withstand negative voltage. Please take care when installing batteries.

**CTs are inherently less accurate at or below 10% of max range. For best calibration results calibrate at a current between 30% and 90% of max accurate range.

***Because of a diode inherent to the hardware, the sensor is incapable of reading between 0 and the deadband value. This diode also creates an offset. To account for this, the firmware uses offset compensation