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Head-Mounted Temperature Transmitter – Universal Input, 4–20mA Isolated Output

Head-Mounted Temperature Transmitter – Universal Input, 4–20mA Isolated Output

$106.00Price
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Quantity
Compact head-mounted temperature transmitter with universal thermocouple/RTD input, isolated 4–20mA output, built-in cold junction compensation, and 24VDC power supply.

  • The Head-Mounted Temperature Transmitter provides a compact and reliable solution for converting thermocouple and RTD signals into a standard 4–20mA output. Designed for direct installation inside sensor connection heads, it features full input-to-output electrical isolation (1500VAC) to ensure stable performance in industrial environments.

    With support for 8 thermocouple types and 2 RTD types, the transmitter is fully programmable via PC software and a USB interface, allowing flexible configuration for a wide range of applications. Built-in cold junction compensation improves accuracy when using thermocouples, while the standard 2-wire 24VDC design ensures compatibility with PLCs, DCS, and other process control systems.

    Key Features

    • Electrical Isolation: 1500VAC between input and output

    • Universal Input: Programmable for multiple sensor types

      • 8 types of thermocouples

      • 2 types of RTDs

    • Built-in Cold Junction Compensation for thermocouple accuracy

    • Programmable via PC software (serial port with USB cable)

    • Standard Output: 4–20mA, 2-wire

    • Power Supply: 24VDC

    • Compact Head-Mount Design for direct installation into sensor heads

    Typical Applications

    • Temperature signal conversion for PLCs and DCS systems

    • Process automation and monitoring

    • Industrial instrumentation and control panels

    • HVAC, energy, and building management

  • Input Types & Ranges

    • RTD: Pt100 (–200 to 600°C, 10°C min. range), Cu50, Cu100

    • Thermocouples: B, E, J, K, N, R, S, T (various ranges up to 1820°C, see datasheet)

    Performance

    • Accuracy: ±0.1%FS

    • Response Time: <1 second (up to 90%)

    • Cold Junction Compensation: –20 to +60°C

    • Temperature Shift: 0.019%FS/°C

    Output

    • Signal: 4–20mA, 2-wire

    • Current Output: IH=21mA, IL=3.8mA (with limit)

    • Alarm Current: 21mA (open circuit)

    • Load Resistance: RL ≤ (V supply – 7.5V) / 0.021A

    Isolation & Protection

    • Isolation: 1500VAC, 1 min (input/output)

    • Isolation Resistance: ≥100MΩ (500VDC)

    • Earthquake Resistance: 4g/2 to 150Hz

    • IP Rating: P00 (unmounted), IP66 (mounted)

    Power & Installation

    • Power Supply: 12–40VDC (24VDC nominal)

    • Installation: Fits Type B connection heads

    • Max Load: 22mA

    • Operating Temperature: –40 to +85°C

    • Storage Temperature: –40 to +100°C

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