1. Product Overview
Design concept: Industrial-grade integrated design, reducing external wiring and intermediate links, and enhancing system reliability.
Typical applications: Temperature monitoring in industrial sites such as petrochemicals, power monitoring, food and medicine, and HVAC systems.
2. Core parameters
Category specification description
The input types support thermocouple (K/J/E/T, etc.), RTD (PT100/PT1000), and analog voltage/current (optional)
Output signals: 4-20mA (two-wire system), 0-10V, RS-485 (Modbus RTU protocol)
Measurement range: -200℃ to +1800℃ (customized according to sensor type)
Accuracy class: ±0.1% FS (full range) or ±0.2℃ (RTD mode)
Environmental adaptability: Operating temperature: -40℃ to +85℃ Protection grade: IP65 (Dust and water resistant)
The power supply is 12-36VDC (wide voltage input), and the power consumption is less than 1W
Isolation intensity: Three-terminal isolation of input - output - power supply, 1500V AC (anti-electromagnetic interference)
3. Product Features
① Highly integrated design
Built-in cold junction compensation: The thermocouple measurement automatically compensates for the ambient temperature (accuracy ±0.5℃).
Sensor fault detection: Open circuit/short circuit alarm (The output signal can be set to an over-range value, such as 22mA).
② Intelligent configuration
Tool-free debugging: Set the range and linearize the curve via buttons or the mobile phone APP (Bluetooth connection).
HART protocol is optional: supports remote parameter adjustment and diagnosis (suitable for smart factories).
③ Reliability and safety
Surge protection: IEC 61000-4-5 standard (Resistance to lightning strike/surge).
Intrinsically safe type: Ex ia IIC T6 certification (for explosion-proof occasions).
④ Low maintenance cost
Self-calibration function: Long-term stability <0.05% per year, reducing the number of calibrations.
Modular replacement: Plug-and-play design, reducing maintenance time by 80%.
4. Installation and Interface
Installation method: DIN rail installation or screw fixation.
Terminal block: Removable spring terminal block (supporting 2.5mm² wire).
Status indication: LED displays power/communication/alarm status.
5. Selection Guide
Model input type Output type Special functions
TTM-101 PT100 4-20mA basic type
The TTM-102 K type thermocouple RS-485 with Modbus protocol
TTM-103 multi-input (configurable) 0-10V+HART intrinsically safe type
6. Comparative Advantage (vs Traditional Split Scheme)
Project split-type transmitter + sensor TTM-100 integrated module
The installation complexity requires an additional junction box and signal conditioner to directly connect to the sensor, saving 50% of the space
Signal loss, long-distance transmission is susceptible to interference, local conversion, and has strong anti-interference ability
Calibration and maintenance require separate calibration of sensors and transmitters for integrated calibration, supporting automatic compensation
The total cost is high (equipment + installation + maintenance), and the life cycle cost is reduced by 30%
