instruction manual for inline refractometer pr-03 - K-Patents

5 Startup, configuration and calibration adjustment 39
5.8 Configuring external output unit
To program the External output unit from the keyboard of the Indicating transmitter, start with the sequence
Calibrate / Parameters / Output signals / External output to get the External
output unit display (Figure 5.11).
RI(25ºC
1.4412
EXTERNAL OUTPUT UNIT (Not connected)
1 Zero (0.0000)
2 Span (0.0000)
3 Hold function (Active)
4 Range (4..20 mA)
5 Source (Not defined)
A B C D
Figure 5.11
External output unit display
1 Zero Measurement value corresponding to 4 mA or 0 mA (depending on your chosen
range)
2 Span Measurement value span corresponding to mA output span
3 Hold function Select either 0 Inactive or 1 Active
4 Range Select either 0 4..20 mA or 1 0..20 mA
5 Source Select from
0 Not defined
1 RI (25 ◦ C)
2 Standard RI (25 ◦ C)
3 Temp ◦ C
4 Temp ◦ F
5 TEST
6 Sensor temperature
7 Sensor humidity
Example: For source ◦ C, zero = 20, span = 80, the output signal 4 - 20 mA corresponds to 20-100 ◦ C.
5.9 Configuring automatic prism wash
The relay units -WR and PR-7080 can be configured to control prism wash. Automatic prism wash can be
initiated with regular intervals (Section 5.9.1) or based on certain measurement values (Section 5.9.2). It
is also possible to configure these automatic wash functions so that they are not used when the process is
stopped or the pipe is empty (Section 5.9.3 and Section 5.9.4).