K-Patents PR-03 User Manual
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3 Indicating transmitter (IT-R)
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The K-Patents communications package contains Windows software for downloading data from the IT-R.
The software has been preset so that it normally starts directly after the installation and it has built-in
instructions. However, you can also use any standard communications software to download data. In
such case see Section 9.4.2, “Serial output specifications” for more information on the data format and
the communications settings.
3.2.4 Demo mode connection
The Indicating transmitter can be used as stand-alone for demos and to train keyboard handling. The built-in
Demo program contains a sensor simulator, so when the demo connection is on, you only need an IT-R to
show how the refractometer system works.
The Demo mode is activated by changing connections on the Power supply card:
1. Turn off the power from the IT-R. Open the enclosure cover and the front panel.
2. Disconnect the sensor cable (connections 1-7) (Section 3.2.2.1) and all connections to Serial bus (con-
nections 8-14), i.e. all external units (see Section 4.1.3 and Section 4.2.2).
3. Connect terminal 1 to terminal 8 and terminal 2 to terminal 9, Figure 3.12
1
8
2
9
3
10
4
11
27
43
47
29
45
49
15
5
12
28
44
48
30
46
50
31
16
6
13
17
7
14
18
SENSOR
SERIAL BUS
RS-485
SWITCHES
RLY1 RLY2
25 26
4-20mA
+ -
Figure 3.12
Making demo connection
4. Close the front panel and turn on the IT-R.