7-Channel AC Current Acquisition Alarm Controller

7-Channel AC Current Acquisition Alarm Controller

Product Overview
This product is a real-time measurement and acquisition module for 6-channel single-phase parameters such as current, power, and energy, featuring relay threshold alarm output. It uses high-precision instrument transformers to achieve signal isolation and sensing for each channel. Signal measurement employs a dedicated high-accuracy true RMS measurement chip, capable of accurately measuring RMS values of current, voltage, power, and other parameters across various waveforms. Corresponding threshold alarm parameters can be configured to enable unattended automatic alarm output. Communication interfaces include RS485 and Ethernet. It is widely used in equipment over-limit power alarms, production automation detection, equipment room monitoring, enterprise energy consumption monitoring, and big data analysis.
Features
1.6-channel single-phase AC power measurement; only 1 common voltage input and 6 load current inputs are required, making deployment convenient.
2.Can be used as a 7-channel AC signal alarm; customizable as a 7-channel AC current acquisition alarm device.
3.Features 7 relay outputs, with each relay corresponding to independently configurable alarm parameters.
4.4 alarm modes: supports upper limit, lower limit, upper-and-lower limit window, and zone alarm functions per channel.
5.Optional manual alarm control relay output function.
6.When Ethernet communication is selected, simultaneous dual-port output via RS485 (Modbus-RTU protocol) and Ethernet (Modbus-TCP protocol) is available.
7.Excellent stability: measurement accuracy is not affected by ambient temperature changes
Models
ZH-40068-14N2/300V*#A:6-Channel Single-Phase Power Acquisition Alarm Module, 9V–30V DC Power Supply, RS485 Communication
ZH-40068-34N2/300V*#A:6-Channel Single-Phase Power Acquisition Alarm Module, 9V–30V DC Power Supply, RS485 + Ethernet Communication
ZH-40076-14N2/#A:7-Channel AC Current Acquisition Alarm Module, 9V–30V DC Power Supply, RS485 Communication
ZH-40076-34N2/#A:7-Channel AC Current Acquisition Alarm Module, 9V–30V DC Power Supply, RS485 + Ethernet Communication
Note: AC 220V power supply is optional. When equipped with 220V supply, the model suffix should be "-19N2" (the digit "9" in the model number denotes 220V power supply).
Performance Specifications
1.Accuracy Class: Voltage, Current: 0.2%
2.Current Range: 100mA, 500mA, 1A, 5A AC (default) and other customizable ranges (external miniature precision CT option available)
3.Voltage Range: 100V, 250V, 300V (default), 400V AC
4.Operating Temperature: -40°C to +70°C
5.Data Update Interval: 250 ms
6.Isolation Withstand Voltage: >2500V DC
7.Auxiliary Power Supply: +24V DC (9V–30V) or 220V AC optional
8.Rated Power Consumption: <3W
9.Output Interface: RS485 (Modbus-RTU) or Ethernet (Modbus-TCP; when Ethernet is selected, RS485 output is simultaneously available)
10.Output Data: Total voltage, frequency, and per-channel current, active power, reactive power, power factor, energy, etc.
11.Communication Baud Rate: 4800, 9600, 19200, 38400, 57600, 115200 bps
12.Data Format: 8 data bits; odd/even/none parity; 1 or 2 stop bits selectable
13.Relay Output: 7-channel relay normally open (NO) contact output
14.Contact Rating: 5A / 250V AC
15.Alarm Functions: 4 modes configurable — undervoltage / overvoltage / upper-and-lower limit / zone alarm; manual command control also supported
16.Alarm Hysteresis (Deadband): Configurable from 0.2% to 6% of range; factory default: 1%
17.Mounting Type: 35mm DIN-rail mounting; Dimensions: 145 × 90 × 40 mm
18.Weight: 260 grams