9
Features
4
Section 4.1 - Universal Transmitter DRST-UR
• Input for RTD, TC, Ohm, potentiometer, mA and V
• 2-wire supply > 16 V
• FM-approved for installation in Div. 2
• Output for current, voltage and 2 relays
• Universal AC or DC supply
Section 4.2 - Advanced features
• Programmable via detachable display front (DRSL-DISPLAY), process calibration, signal and relay
simulation, password protection, error diagnostics and selection of help text in several languages.
Section 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 2 pairs of potential-free relay contacts and analogue output.
• Galvanic separation of analogue signals and measurement of floating signals.
• The DRST-UR is designed according to strict safety requirements and is thus suit able for application
in SIL 2 installations.
Section 4.4 - Technical characteristics
• When DRST-UR is used in combination with the DRSL-DISPLAY/programming front, all
operational parameters can be modified to suit any application. As the DRST-UR 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. A yellow LED is ON for each
active output relay.
• Continuous check of vital stored data for safety reasons.
• 4-port 2.3 kVAC galvanic isolation.
