Description
The Head Mount Temperature Transmitter is a compact industrial signal conditioning device designed to convert RTD and thermocouple sensor signals into a standardized 4–20 mA current loop output for reliable transmission to PLC, DCS, SCADA, and process control systems. Installed directly inside the sensor’s terminal head, the transmitter converts the low-level temperature signal close to the sensing element, significantly reducing electrical noise, voltage drop, and signal degradation that can occur over long cable runs. This improves measurement accuracy and system reliability, especially in electrically noisy industrial environments.
Key Features
-
Direct Terminal Head Mounting Fits standard DIN Form B connection heads, converting sensor signals at the source without requiring remote transmitter panels.
-
Universal RTD & Thermocouple Compatibility Accepts standard 3-wire/4-wire Pt100 RTDs and industrial thermocouples for high-linearity signal conversion.
-
2-Wire 4-20mA Loop-Powered Operation Reduces installation and wiring costs by transmitting power and measurement signals over a single pair of wires.
-
High Measurement Precision 0.1%FS Delivers 0.1% Full Scale accuracy with rapid sub-1-second response times for dynamic thermal loop tracking.
-
Automatic Fail-Safe Alarm 3.9mA Instantly alerts control systems to sensor burnout or wire disconnection by driving the output loop down to 3.9mA.
-
IP66 & Vibration-Resistant Construction Potted electronics withstand 4g mechanical vibration and heavy ambient condensation across -40 to 85℃.
Applications
-
Long-Distance Signal Transmission Transmits noise-immune 4-20mA current loops from remote field locations to central control panels without signal loss.
-
PLC, DCS & SCADA Integration Standardizes temperature inputs across petrochemical, chemical, power generation, and water treatment facilities.
-
Heavy Machinery & Rotating Equipment Direct mounting on pumps, gas turbines, compressors, and diesel engines subject to continuous mechanical vibration.
-
Field Retrofitting & Upgrades Replaces raw sensor lead wire runs with robust 2-wire current loops on existing plant RTD and thermocouple assemblies.
Datasheet
FAQs
1. What is a Head Mount Temperature Transmitter?
A Head Mount Temperature Transmitter is an electronic device installed inside the connection head of an RTD sensor or thermocouple. It converts the sensor’s low-level resistance or millivolt signal into a standard 2-wire, loop-powered 4–20 mA output for accurate and reliable transmission to industrial control and monitoring systems.
2. Why is a Head-Mounted Transmitter better than a Remote Transmitter?
Installing the transmitter directly inside the sensor head converts the temperature signal close to the sensing element, minimizing the effects of electrical noise, voltage drop, electromagnetic interference (EMI), and signal degradation during long-distance cable transmission. This improves overall measurement accuracy and system reliability.
3. Which Sensors are compatible with this Transmitter?
The Head Mount Temperature Transmitter is compatible with both RTD sensors (including Pt100 and other RTDs) and thermocouples (such as J, K, T, R, S, B, N, and E Types), making it suitable for a wide range of industrial temperature measurement applications.
4. What output signal does the Transmitter provide?
The transmitter converts the temperature sensor signal into a 2-wire, loop-powered 4–20 mA analog output, the industry-standard signal for direct connection to PLCs, DCS systems, SCADA platforms, PID controllers, digital indicators, data acquisition systems, and industrial automation equipment.
