TM112 Compact Temperature Transmitter
Product Application
1. Machinery, equipment and tank manufacturing & propulsion technology & hydraulic equipment
Equipment status monitoring and protection
Temperature of key mechanical components: Monitor the temperature of key rotating or frictional parts such as engines, gearboxes, bearings, motor windings, gearboxes, hydraulic pumps/motors, etc., to prevent overheating damage and achieve predictive maintenance.
Hydraulic system oil temperature: Accurately measure the temperature of the hydraulic oil to ensure it is within the optimal working range (with appropriate viscosity). Excessively high oil temperature can lead to oxidation of the oil, a decrease in viscosity, and aging of sealing parts. If the oil temperature is too low, the viscosity will increase and the system response will be slow. The transmitter signal is used to control the start and stop of the cooler or heater.
Coolant/lubricant temperature: Monitor the temperature of the coolant or lubrication system of machine tools and large equipment to ensure the cooling/lubrication effect and the processing accuracy of the equipment.
Process control
Heat treatment process: During annealing, quenching, tempering and other processes, precisely control the furnace temperature, workpiece temperature or quenching medium temperature to ensure that the material performance meets the standards.
Welding/forming temperature: Control the welding heat input (such as preheating, interlayer temperature) or the plastic/metal forming temperature.
Tank/container temperature monitoring
Monitor the temperature of the medium inside storage tanks (raw materials, finished products, intermediate products) for inventory management, safety alarms (such as preventing solidification or overheating), or simple process control.
Monitor the temperature of the reactor vessel, the jacket or inner tank of the mixing tank, and participate in the control of the reaction temperature.
Propulsion system
Monitor the temperatures of key components such as fuel, oxidant, coolant, bearings, and combustion chamber walls in rocket engines and aero engines to ensure the safe operation and performance optimization of the systems.
2. Hygienic applications (food and beverage industry, pharmaceutical industry, active agent production, biotechnology and life science engineering, dairy factories, breweries)
This is an area with extremely strict application requirements for temperature transmitters. The core lies in meeting hygiene design standards, ensuring product safety, preventing contamination, and facilitating cleaning and disinfection (CIP/SIP).
Key application points
CIP (In-line Cleaning)/SIP (In-line Sterilization) process control: Precisely monitor the temperature of the cleaning solution, sterilization steam/water to ensure that the effective cleaning and sterilization temperatures are reached and maintained (for example, SIP typically requires a specific period of time above 121°C). This is the core link to ensure the aseptic state of the production line. The transmitter needs to withstand high temperature, high pressure and strong chemical cleaning agents.
Pasteurization/sterilization: During the pasteurization process of products such as milk, fruit juice, beer, and medicinal liquids (e.g., 72°C/15s) or UHT sterilization (135-150°C/ seconds), continuous, precise, and rapid measurement of product temperature is crucial for ensuring sterilization effectiveness (killing pathogenic bacteria) and product quality (avoiding excessive heating that damages nutrition/flavor). The response speed of the transmitter is of vital importance.
Fermentation process control: In the fermentation tanks of beer, yogurt, cheese, antibiotics, vaccines, biological products, etc., temperature is one of the most critical parameters that affect the growth of microorganisms, the yield and quality of metabolic products. The transmitter needs to precisely control the temperature inside the tank within a narrow range (such as ±0.1°C).
Reaction process control: In pharmaceutical synthesis, active agent production, and bioreactors, the rate and selectivity of chemical/biological reactions are highly dependent on temperature. The transmitter ensures that the reaction proceeds precisely within the set temperature curve.
The core value of temperature transmitters in these industries
Signal standardization and long-distance transmission: Overcoming the shortcomings of weak signals, susceptibility to interference, and short transmission distance of thermal resistors/thermocouples, it provides standard signals with strong anti-interference ability and long-distance transmission capability.
Accuracy and stability: It offers more precise and stable measurement results than direct sensor reading, with built-in linearization and cold junction compensation (thermocouple).
Electrical isolation: Effectively isolate on-site dangerous voltages or ground loop interference to protect the safety of the control system.
Diagnostic function (intelligent type) : Intelligent transmitters such as HART can provide information such as sensor open circuit/short circuit diagnosis and process temperature over-limit alarm, which is convenient for maintenance and fault detection.
Easy to integrate: The standard output signal can be directly connected to control systems such as PLC, DCS, and SCADA.
Durable and sturdy: Designed to adapt to industrial environments (vibration, humidity, electromagnetic interference).
Safety: Provide reliable signals in critical protection circuits (such as equipment over-temperature shutdown and SIP temperature compliance confirmation).
Compliance with regulations: In the health and pharmaceutical industries, meeting strict hygiene design, material safety, and calibration traceability requirements is mandatory.
Technical Parameters
Measurement range |
Refer to the selection table |
Linearity |
< 0.1% |
Accuracy |
±0.2K+0.5% full scale |
Resolution |
0.1K |
Pressure resistance |
40bar for type 6 probe and 100bar for type 8 probe |
Temperature influence |
0.1K/10k |
Response time |
t50,2.3 seconds /t90,5.4 seconds |
Working voltage |
12... 30Vdc |
Electrical protection |
Reverse pole, overload protection |
Sensor |
PT100 |
Ambient temperature |
-25... 80°C |
Protection grade |
IP65 |
Shell material |
Stainless steel |
Material of the part in contact with liquid |
304 stainless steel |
Electrical connection |
Terminal wiring |



