TM-2HLI Isolated Head Mount RTD/TC Transmitter

TM-2HLI in Temperature Probe

TM-2HLI Isolated Head Mount RTD/TC Transmitter

RTD/TC Input, 4-20mA Output, Designed for Temperature Probes

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What it does

The TM-2HLI accepts an RTD or TC temperature input signal and outputs a 4-20mA signal.

The TM-2HLI is a DIN B style head mount transmitter that accepts either an RTD PT100/1000 input signal, or a thermocouple input signal, and converts it to an industry standard 4–20mA output. The TM-2HLI offers 3750V AC isolation between the input and output.

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High isolation

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High accuracy 0.03%

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Loop powered

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Fast, hassle-free USB programming using Define ToolBox

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Enhanced EMC specifications

Easy USB programming using Define ToolBox

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No power supply or calibrator required

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Uses the universal USB Bridge Key (sold separately) for PC connection

Try Before You Buy!

Use the product simulator inside our free ToolBox software to demo how this instrument works.

Bridge Key Required!

In addition to this software a Bridge Key is required for the configuration of this product.

You must order one unless you already have one from a previous product purchase.

Specifications

Power


Power supply: 9.5-36V DC


Supply voltage sensitivity: < ±0.005%/V FSO


General Specifications


Accurate to: <±0.03% FSO typical


Ambient drift: <±0.003%/°C FSO typical


Isolation test voltage: Between input/output: 3750V AC for 1min


Noise immunity: 125dB CMRR average (2.0kV DC limit)


RF immunity: <1% effect FSO typical


Response time: 400msec typical (10–90% 300msec typical)


Thermocouple Input


Thermocouple types: B, E, J, K, N, R, S, T


Input impedance: 1MΩ min


T/C lead resistance: 100Ω max


Cold junction compensation: –4 to 194°F (–20 to 90°C)


CJC error: < ±1°C


Accuracy: E, J, K, N, T: < ±1°C. B, R, S: < ±2°C


Ambient drift: E, J, K, N, T: < ±0.05°C. B, R, S: < ±0.2°C


Sensor break output drive: Function high upscale/low downscale


USB programmable zero: 0–±99% of the span


RTD Input


RTD input type: PT100 or PT1000 DIN 3-wire type (2-wire can be used with off set calibration)


Lead wire resistance: PT100: 10Ω/wire max. Pt1000: 5Ω/wire max 0.02% FSO off set error per Ω of lead resistance


Sensor current: 0.15mA nominal


Sensor break output drive: Function high upscale/low downscale


Accuracy: ≤ 0.3°C


USB programmable zero: 0–±99% of the span


USB programmable span: –328 to 1562°F (–200 to 850°C)


Linearity (PT100): 0.02% FSO for span inputs ≤200°C. 0.1% FSO for span inputs ≤850°C


Linearity (PT1000): 0.02% FSO for span inputs ≤200°C. 0.2% FSO for span inputs ≤520°C



Analog Output (Retransmission)


Analog output type: 4-20mA or 20-4mA (loop powered)


Output load resistance: 700Ω at 24V DC (50Ω/V above 9.5V DC)


Max output current: Limited to <28mA (Emission & immunity)


Programming


Define ToolBox: Simple programming using Define ToolBox (requires Bridge Key, sold separately)


Construction


Casing: In head mount, designed for temperature probes


Dimensions (H x W x D): 0.91 x 1.73 x 1.73″ (23 x 44 x 44mm)


Environmental Conditions


Operating temperature: –4 to 149°F (–20 to 65°C)


Storage temperature: –4 to 212°F (–20 to 100°C)


Operating humidity: 5–85%RH max (non-condensing)


Certifications & Compliances


EMC: Emissions (EN 61326). Immunity 61326). Safety (EN 61010-1)


Documents

TM-2HLI Manual 17V10, 28-Jun-2017 | (177 KB)

Software


Define ToolBoxDefine ToolBox

Smart, simple software to program your non-Zen series products

Use Define ToolBox software to program your non-Zen series product via your PC. It configures:

ToolBox offers a simple interface for connecting to your compatible device, and a range of flexible configuration options, including an extensive library of pre-calibrated ranges and linearization tables for advanced scaling.


Define ToolBox Configuration Software