Description
HONEYWELL J-MHM10
Technical Specifications:
- Brand: Honeywell
- Model: J-MHM10
- Product Type: Module Controller Card
- Supply Voltage: 24V DC
- Operating Current: ≤35mA at 12V DC supply
- Operating Temperature: 0°C to 55°C
- Measurement Range: Humidity 0~100%RH, Temperature -40~80°C
- Output Signal: 4~20mA DC
- Temperature Accuracy: ±1°C
- Humidity Accuracy: ±3%RH
- Dimensions: Φ16mm × 64mm
Functional Features:
- Multi-Parameter Measurement: Measures both temperature and humidity
- Wide Measurement Range: Temperature -40~80°C, Humidity 0~100%RH
- Standard Output: 4~20mA DC output signal
- High Accuracy: Temperature accuracy ±1°C, Humidity accuracy ±3%RH
- VFD Integration: Compatible with Rockwell and Allen Bradley PowerFlex VFD products
- RS485 Communication: Uses RS485 network and Modbus protocol
- Safety System Component: Functions as part of industrial safety systems
Application Scenarios:
- Variable frequency drive monitoring and control
- Industrial automation systems
- Safety system applications
- Environmental monitoring
- Process control systems
- Manufacturing automation
- HVAC system monitoring
Performance Parameters:
- Temperature Accuracy: ±1°C
- Humidity Accuracy: ±3%RH
- Output Signal: 4~20mA DC
- Communication: RS485 with Modbus protocol
- Response Time: Fast signal processing
Material Composition:
- Industrial-grade printed circuit board
- High-precision sensing elements
- Precision electronic components
- Flame-retardant engineering plastic housing
- Gold-plated connection terminals
- Signal conditioning circuits
Structural Features:
- Compact cylindrical design: Φ16mm × 64mm
- Front-end interface connections
- LED status indicators
- Protective housing
- Module identification
- Mounting provisions
Working Principle:
The module measures temperature and humidity using integrated sensing elements. The measured values are converted to a standard 4~20mA DC output signal for transmission to the control system. When used with VFD products, it communicates via RS485 network using Modbus protocol, utilizing holding register function to monitor and control the inverter. Address 8192 (decimal) can be used to control the inverter for acceleration, deceleration, jogging, and fault clearing functions.
Installation Requirements:
- Install in appropriate industrial control environment
- Ensure proper 24V DC power supply connection
- Maintain operating temperature between 0°C and 55°C
- Implement appropriate grounding measures
- Avoid strong electromagnetic interference environments
- Follow RS485 wiring guidelines for communication
- Ensure proper sensor placement for accurate measurement
Usage Precautions:
- Installation and debugging should be performed by professional technicians
- Operate strictly according to system configuration requirements
- Regularly check module operating status
- Keep modules clean and free from contamination
- Avoid use in environments outside specified temperature range
- Record and handle faults promptly
- Regularly calibrate for measurement accuracy




