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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. If
internal compensation is selected, a terminal with a built-in temperature sensor
must be ordered separately (PR type no. 5910 and 5913). Sensor error detection
is available.
RTD input
for Pt100...Pt1000 according to the norm IEC 751 and Ni100...Ni1000
according to the norm DIN 43760. Automatic cable compensation at a 3- or
4-wire connection. At a 2-wire connection the cable resistance can be entered
or measured by the configuration program and sent to the device which then
compensates by the entered cable resistance. Sensor error detection is available.
Resistance input
for resistance measurement with cable compensation as
described under the RTD input. Sensor error detection is available.
The mv input
is programmable in the range -150...+150 mV.
Current / voltage input - jumper in position 2:
The current input
is programmable in the range 0...100 mA, for instance 4...20
mA.
The voltage input
is programmable in the range 0...250 VDC.
Output
Standard loop 4...20 mA current output. The output signal is proportional and
linear to the value of the input signal. Special set-ups can be selected in the
configuration program, for instance a customised linearisation, a reversed output,
a limiter according to the selected output span, and selection of an output value
in case of a sensor error. Maximum load on the current output is 1375
Ω
.
Sensor error detection
The output can be set up at a RTD, thermocouple and linear resistance input
to go to max., to min., entered value, NAMUR NE43 Upscale or Downscale at
sensor error detection.
Configuration
The transmitter is configured to the present task by way of a and PR electronics
A/S’ communications interface Loop Link. The transmitter can be configured with
or without a connected supply voltage as the communications interface supplies
the necessary voltage to the set-up. The communications interface is galvanically
isolated to protect the PC port. Communication is 2-way to allow the retrieval of
the transmitter set-up into the PC and to allow the transmission of the PC set-up
to the transmitter. For users who do not wish to do the set-up themselves, the
5131 can be delivered con fi g ured according to customer specifications: input
type, measurement range, sensor error detection, and output signal.
Содержание PRetrans 5131
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