TM-310

Extended

Head-Mount Temperature Transmitter

Universal RTD / thermocouple conditioning with digital output.

ACCURACY

±0.1 °C (RTD)

RANGE

-200

to

1372

°C

PROTECTION

IP66

TEMPERATURE

-40

to

85

°C

TM-310 Head-Mount Temperature Transmitter | INSTRAVA4–20 mA

01

OVERVIEW

What it does and why it is built this way

The TM-310 mounts in the connection head of any temperature sensor and converts its signal to a clean 4–20 mA output with HART diagnostics.

Dual-sensor input allows redundancy or differential measurement, and a drift alarm tells maintenance when a sensor needs attention.

KEY FEATURES

Universal RTD and thermocouple input

HART 7 with dual-sensor redundancy

Sensor drift detection

MEASURING PRINCIPLE

Resistance thermometry (RTD)

How this principle works →

OUTPUT SIGNALS

4–20 mA

HART

APPROVALS (DEMO)

Functional safety SIL 2 capable

NAMUR NE 43 signalling

02

HOW IT MEASURES

Measuring principle, animated

Drag the slider to see how the measured variable becomes a 4–20 mA signal.

Resistance thermometry (RTD)
TM-310 Head-Mount Temperature Transmitter | INSTRAVA167.4 ΩPt100 ELEMENTTEMPERATURE →
TEMPERATURE
175 °C
OUTPUT
12.0 mA
  1. A platinum element sits at the tip of the probe.
  2. Its resistance rises almost linearly with temperature (Pt100: 100 Ω at 0 °C).
  3. The transmitter measures resistance and converts it to temperature.

03

SPECIFICATIONS

Technical data

Technical specifications
GroupParameterValue
MeasurementPrincipleResistance thermometry (RTD)
Measuring range-200 to 1,372 °C
Accuracy±0.1 °C (RTD)
InputsRTD, thermocouple, resistance, mV
OutputSignals4–20 mA, HART
ProcessConnectionThreaded
Process temperature-40 to 85 °C
EnvironmentIngress protectionIP66
Ambient temperature−40 to 85 °C
ApprovalsApprovals (demo)Functional safety SIL 2 capable, NAMUR NE 43 signalling
ElectricalSupply voltage10–36 V DC
Output4–20 mA, NAMUR NE 43

Values are illustrative demo data for a fictional product. Replace with your own specifications.

07

FAQ

Questions about this principle

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RFQ

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