The Micro-moisture and Density Analyzer's physical interface is a 4-pin electrical connector, with the pins defined as: V+, V−, A, and B. V+ and V− are the power supply interfaces. The Rated Voltage is DC 12V, with an Allowable Range of DC 5V−24V. DC 12V is the recommended supply voltage. A and B are the RS485 communication interfaces, which connect to the host unit's RS485 port via cable.If the distance between the analyzer and the host unit is long or if electromagnetic interference (EMI) is significant, it is recommended to use Shielded Twisted Pair (STP) cable for connection to ensure data transmission accuracy and stability.

Communication between the Micro-moisture and Density Analyzer and the host unit is conducted via the RS485 interface using the Modbus-RTU protocol.

The Default Baud Rate is 9600 bps, with No Parity, 8 Data Bits, and 1 Stop Bit (N, 8, 1).

Reference Standard: DL/T 506-2018 《Measurement Method for Humidity of Insulating Gas in Sulfur Hexafluoride Electrical Equipment》

Certified Tests

1. GB/T 2423.1-2008 《Environmental testing for electric and electronic products Part 2: Test methods - Test A: Cold》
2. GB/T 2423.2-2008 《Environmental testing for electric and electronic products Part 2: Test methods - Test B: Dry heat》
3. GB/T 2423.3-2016 《Environmental testing Part 2: Test methods - Test Cab: Damp heat, steady state》
4. GB/T 2423.4-2008 《Environmental testing for electric and electronic products Part 2: Test methods - Test Db: Damp heat, cyclic (12h+12h cycle)》
5. GB/T 17626.2-2018 《Electromagnetic compatibility - Testing and measurement techniques - Electrostatic discharge immunity test》
6. GB/T 17626.3-2016 《Electromagnetic compatibility - Testing and measurement techniques - Radiated, radio-frequency, electromagnetic field immunity test》
7. GB/T 17626.8-2006 《Electromagnetic compatibility - Testing and measurement techniques - Power frequency magnetic field immunity test》
8. GB/T 17626.9-2011 《Electromagnetic compatibility - Testing and measurement techniques - Pulse magnetic field immunity test》

Technical Specifications