Features
- Multisensor system: DC and AC Current (Hall, shunt, CT), voltage, temperature
- WiFi interface with cloud connectivity
- Transceiver extensible (LoRa, ZigBee, CAN)
- Galvanically isolated split-core design
- Contactless Melexis 91208 Hall sensor
Applications
- Internet of Things (IoT), Internet of Everything (IoE)
- Monitoring of battery driven equipment
- Workplace safety, factory monitoring
- Energy efficiency / cost monitoring
- Solar power
- Prototyping, development, test platform
Description
The IoT Current and Voltage Sensor consists of four sensors: (i) contactless Hall or CT current sensor, (ii) shunt resistor based current sensor (iii) battery voltage sensor, and (iv) temperature sensor. The four sensor signals are read by analog-to-digital converters (ADCs), processed by a programmable state-of-the-art microcontroller, and uploaded to the cloud via WiFi interface. The connectivity of the module is extensible to CAN, LoRa, GSM, Zigbee, Bluetooth, and Ethernet interfaces.
A particular feature of the product is its easy and safe installation without interrupting the primary current wire by using contactless galvanically isolated Hall sensor technology. This additionally allows the module to be used for hassle-free retrofit application.
The device is supplied directly with 5V…60V DC from the primary battery and optionally can be operated with a secondary 9V battery for autonomous use.
Characteristics
| Parameter | Typical Value | Unit |
| Primary input current range (DC and AC) | ±5…±2000 | A |
| Voltage measurement range (DC and AC) | ±1…±1000 | V |
| Measurement accuracy | 1.0 | % |
| Operation temperature range | –40 … 85 | °C |
| Supply voltage | 12 (5…60) | VDC |
| Battery supply for autonomous use | 9 | VDC |
| Output refresh time | 10.0¹ 100.0² |
ms |
1) wired connection
2) wireless connection
Block Diagram (Single-channel)
Block Diagram (Multi-channel)
Module Variants
The IoT Current and Voltage Sensor module is available in several variants:
- Single-channel sensor frontend
- Multi-channel sensor frontend, e.g., 4-channel solution for the solar applications
- Interface options include WiFi, CAN, LoRa, GSM, Zigbee, Bluetooth, Ethernet
- Power supply directly from your 12V..48V batteries
- Autonomous supply with separate 9V battery
- Hall, CT, or shunt current sensor technologies available
Single-channel
Multi-channel
Typical Applications
Battery-Driven Fleet and Tools
Workplace Safety / Energy Efficiency
Renewable Energy, Solar Power, and Smart Grid
