[Communication Interface]：RS485
[Working voltage]： DC 8~28V
[Installation method]：rail/screw
[Product size]：121*72*34mm
[Product weight]：140±5 g
| power supply | Working voltage | DC8～28V |
| Power indicator | Blue LED indication | |
| communication | Communication interface | RS485 |
| Baud rate | 1200~115200bps (default 9600) | |
| Communication protocol | Standard Modbus RTU protocol | |
| MODBUS | Device address | Can be modified through Modbus instructions and host computer |
| Temperature collection | Number of channels | 8-way |
| Sensor type | 2-wire K-type thermocouple temperature sensor | |
| Temperature resolution | 0.1℃ | |
| Accuracy | Normal temperature (25±5℃) condition: ±0.2%±2℃ | |
| Full temperature (-40~85℃) condition: ±0.5%±2℃ | ||
| Acquisition frequency | 1Hz | |
| other | Product size | 121mm * 72mm * 34mm (length * width * height) |
| Product weight | 140 ±5 g | |
| Working temperature and humidity | -40 ～ +85℃, 5% ～ 95%RH (no condensation) | |
| Installation method | Guide rail installation, screw installation | |
| Serial port parameters | Baud rate | 9600bps (8 types) |
| Verification method | None | |
| Data bit | 8 | |
| Stop bit | 1 | |
| MODBUS Parameters | Modbus master-slave | Slave |
| Address | 1 |
Practical Application Scenarios
1. Industrial Furnace & Oven Multi-Point Temperature Monitoring
European heat treatment factories install ME31-XEXX0800-485 modules inside electrical cabinets, connecting 8 groups of K-type thermocouples to track furnace wall, heating zone and cooling section temperatures simultaneously. Modbus RTU RS485 bus transmits real temperature data to Siemens/Mitsubishi PLCs, and it can cascade multiple modules via RS485 bus to expand dozens of detection points. Matched with EWD95M DIN LoRa DTUs, it realizes wireless furnace temperature data upload to cloud MES production management platforms without wired wiring renovation.
2. New Energy Battery Production Line Thermal Detection
Overseas lithium battery manufacturing OEMs deploy this 8-channel thermocouple acquisition module for battery baking ovens and aging cabinets. Triple-proof coating resists high humidity chemical vapor inside production workshops, dual watchdog design avoids data loss caused by industrial electromagnetic interference, and 0.1 Celsius high resolution precisely captures tiny temperature fluctuations during battery curing processes, compatible with workshop HMI touch screens for on-site data visualization.
3. Food & Beverage Sterilization Pot Temperature Control
Global food processing enterprises use ME31-XEXX0800-485 to collect multi-point temperature inside high-temperature retort sterilizers. Wide -200 to 1350 Celsius measurement range fully covers sterilization working conditions, DIN rail mounting fits standard food industry control cabinets, and Modbus protocol directly links with industrial configuration software to record sterilization temperature curves for food safety traceability archives.
4. Metallurgy & Foundry Smelting Workshop Monitoring
Metal smelting plant engineering teams equip the module to monitor molten metal furnace, casting mold and cooling pool temperatures via K-type thermocouples. Anti-salt spray conformal coating prevents circuit corrosion from metal oxide dust, wide 8–28V voltage adapts unstable workshop power supply, and multi-module RS485 cascade expands measurement nodes for large-scale smelting production lines.
5. Greenhouse & Agricultural Drying Barn Temperature Logging
International agritech companies install this temperature acquisition module inside grain drying barn control boxes. Industrial wide temperature tolerance adapts high-temperature drying workshop environments, isolated RS485 bus eliminates ground loop interference between multiple temperature sensors, and it works with E22 LoRa wireless modules to transmit real-time barn temperature data to remote agricultural monitoring servers for automatic drying process adjustment.
FAQ Section
1. What thermocouple sensor type does ME31-XEXX0800-485 exclusively support?
This acquisition module only supports two-wire K-type thermocouple temperature probes, it cannot connect S, B, E, J or other types of thermocouple sensors directly; users need to match standard K-type probes within the -200 to 1350 Celsius measurement range for normal high-precision reading.
2. How many ME31 temperature modules can be cascaded on one single RS485 bus line?
The Modbus RTU RS485 bus supports cascading dozens of ME31-XEXX0800-485 modules simultaneously, each module can be assigned an independent Modbus communication address via host configuration software, avoiding data address collision during multi-channel centralized temperature polling reading.
3. What crash protection design does this temperature module integrate for harsh industrial sites?
The device equips dual hardware and software independent watchdog circuits. If program deadlock or communication disconnection occurs under strong industrial electromagnetic interference, the watchdog will automatically reset the module within milliseconds to restore normal temperature acquisition and Modbus bus communication without manual power cycling.
4. What installation methods does ME31-XEXX0800-485 support for different control cabinet layouts?
The industrial plastic housing reserves standard DIN 35 rail buckle structure for fast cabinet internal installation, and four wall fixing screw holes are preset on the shell, supporting desktop permanent fixing or wall-mounted deployment for small independent drying ovens and experimental testing equipment.
5. Can this 8-channel thermocouple module communicate with Ebyte LoRa DTU radio series wirelessly?
Yes, its isolated RS485 Modbus interface is fully compatible with EWD95M, E90-DTU industrial LoRa radio transceivers. Users can connect the module’s RS485 terminal to DTU serial ports to convert wired temperature data into long-distance wireless LoRa transmission for unattended industrial workshop monitoring.
