TMT181 Temperature Transmitter Chinese Manual Download
This page provides a direct download entry for the TMT181 temperature transmitter Chinese manual. The manual covers installation, wiring, configuration, commissioning, and troubleshooting, suitable for field engineers, instrument maintenance personnel, and procurement selection reference.
Download TMT181 Chinese Manual.pdf
TMT181 Product Overview
TMT181 is a HART protocol temperature transmitter used for industrial process temperature measurement. It is usually installed in a junction box, converting thermocouple or RTD signals into a 4-20mA standard current output for easy connection to DCS, PLC, and other control systems.
This transmitter supports multiple sensor inputs, features electrical isolation and anti-interference capability, and is suitable for complex working conditions in chemical, power, metallurgy, and other industries.
Core Functional Features
- HART Communication: Supports remote configuration and parameter reading, facilitating maintenance.
- Multi-signal Input: Compatible with thermocouples, RTDs, resistance, and voltage signals.
- Electrical Isolation: Improves field anti-interference capability and ensures signal stability.
- Compact Structure: Suitable for integrated installation in temperature sensor junction boxes.
Technical Parameters and Selection
When selecting, focus on input type, range, and output mode. The table below lists typical parameters of TMT181; refer to the manual for details.
| Item | Typical Parameters |
|---|---|
| Input Signal | Thermocouple, RTD, resistance, voltage |
| Output Signal | 4-20mA with superimposed HART signal |
| Supply Voltage | Typically 8-35V DC |
| Communication Protocol | HART |
| Installation Method | Integrated installation inside junction box |
Selection Precautions
- Confirm the sensor type and graduation, such as PT100, K-type thermocouple.
- Confirm whether the range covers the actual working temperature.
- Confirm that the power supply and loop load meet field requirements.
Installation and Wiring Steps
Correct installation and wiring are prerequisites for ensuring stable operation of TMT181. Please follow the steps below and strictly adhere to the safety specifications in the manual.
- Disconnect power and confirm there is no dangerous voltage on site.
- Install the transmitter in the temperature sensor junction box and secure it firmly.
- Connect the sensor and power loop according to the terminal diagram in the manual.
- Check wiring polarity to ensure no short circuit or reverse connection.
- After power-on, observe whether the output is normal before configuring.
Wiring Precautions
- Use shielded cables and ground the shield at one end.
- Avoid parallel routing with power cables to reduce interference.
- Ensure the supply voltage is within the allowable range.
Configuration and Commissioning Key Points
TMT181 can be configured via a HART communicator or host software. Before commissioning, confirm that the sensor type, range, and unit settings are correct.
- Sensor Type: Consistent with the actually connected sensor.
- Range Setting: Temperature values corresponding to 4mA and 20mA.
- Damping Time: Adjust according to response speed requirements.
- Fault Current: Set the output state when the sensor fails.
Common Issues and Maintenance
If abnormal output occurs during field use, first check wiring, power supply, and sensor status. If necessary, read diagnostic information via HART.
- Output too low or too high: Check range and sensor graduation.
- No output: Check power supply and loop connections.
- Signal fluctuation: Check shield grounding and interference sources.
Manual Online Reading
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