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Characteristics
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Section 4.1 - Universal Transmitter DRST-UN
• Input for RTD, TC, Ohm, potentiometer, mA and V
• 2-wire supply > 16 V
• Output for current and voltage
• Universal AC or DC supply
4.2 - Advanced Features
Programmable by way of detachable display front DRSL-DISPLAY, process
calibration, signal simulation, password protection, error diagnostics and help
text available in several languages.
4.3 - Application
• Linearised, electronic temperature measurement with RTD or TC sensor.
• Conversion of linear resistance variation to a standard analogue current /
voltage signal, i.e. from solenoids and butterfly valves or linear movements
with attached potentio meter.
• Power supply and signal isolator for 2-wire transmitters.
• Process control with standard analogue output.
• Galvanic separation of analogue signals and measurement of floating signals.
• The DRST-UN is designed according to strict safety requirements and is thus
suitable for application in SIL 2 installations.
4.4 - Technical characteristics
• When DRST-UN is used in combination with the DRSL-DISPLAY display/
programming front, all operational parameters can be modified to suit any
application. As the DRST-UN is designed with electronic hardware switches,
it is not necessary to open the device for setting of DIP-switches.
• A green / red front LED indicates normal operation and malfunction.
• Continuous check of vital stored data for safety reasons.
• 3-port 2.3 kVAC galvanic isolation.
