Description
The TM-120 is an economical analogue measurement converter for Pt100/Pt1000 with current output. Configurations for other resistance sensors or potentiometers can be obtained on request. It is suitable for direct connection to evaluation equipment with current input such asPCcards or PLCs. The TM-120 is supplied calibrated according to customer requirements. Smaller corrections can be performed on site by means of the null point and range adjusters. The sensor connections take the form of a 2- or 3-lead circuit.
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Technical data - Input: Pt100/Pt1000 2-/3-lead circuit
- Measurement current: 0.8..1mA
- Null point: -200..600°C
- Range: 20..850°C
- Linearity error: < 0.1% FS
- Loop voltage: 10..35V DC, with security, against polarity reversal
- Permissible ripple: < 10%
- Output: 4..20mA current loop
- Sensing element fracture: > 20mA
- Sensor short circuit: < 4mA
- Reaction time: < 0.1s
- TC: < 100ppm/°C
- Operating temperature range: -25..85°C
- Humidity: < 95%
EMC
- Emission: EN 61000-6-3:2001
- Resistance to interference: EN 61000-6-2:2001
Application - climatic systems
- environmental technology
- process control
- archiv monitoring
- museum
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PT100 Messverstärker (4-20 mA) TM120
