PR electronics 5114 - Application; Input Types; Technical Characteristics

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PROGRAMMABLE TRANSMITTER 5114
• Input for RTD, TC, mV, linear resistance, mA, and V
• 3-port 3.75 kVAC galvanic isolation
• Current and voltage output
• Universal voltage supply
• 1- and 2-channel versions
• Loop supply > 17.1 V in Ex zone 0
APPLICATION
Electronic temperature measurement with resistance sensor or thermocouple
sensor. • Ex barrier for temperature sensors, potentiometers, and current /
voltage signals • Ex power supply for 2-wire transmitters in zone 0, 1, 2, 20, 21,
and 22. • Amplification of mV signals. • Conversion of linear resistance variation.
• Galvanic isolation of analogue signals. • Measurement of floating signals.
• Linearisation of non-linear Ohm, mV, mA, or voltage signals. • Separation of
circuits in PELV/SELV installations. • The transmitter is especially suitable for
emitting the output current signal, either as a standard current signal or as a loop
signal.
TECHNICAL CHARACTERISTICS
The unit is based on a microprocessor core with an efficient program operation.
The basic calibration data and present set-up are stored in an EEPROM thereby
avoiding the loss or change of data at power off. The 2-channel version has a full
galvanic isolation between the channels. By way of jumpers on the PCB the input
in the standard version can be programmed either for a temperature or a current /
voltage input. This means that one channel can work as for instance a temperature
transmitter and the other can work as an isolation amplifier. Measurement range,
signal parameters, and output span are configured to the present task by way of a
PC and PR electronics A/S’ communica tions interface Loop Link.
INPUT TYPES
Temperature input - jumpers in position 1:
Thermocouple input (TC) for standard thermocouples type B, E, J, K, L, N, R,
S, T, U, W3, W5, LR according to the norms IEC 584, DIN 43710, ASTM E988-90
and GOST 3044-84. The CJC can be selected in 3 different ways: internally in
the terminal, externally by way of a Pt100 / Ni100 sensor, or externally with a
constant temperature.