Vigilantplant TDLS8000, User Manual

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<3. Installation, Wiring, Optical Axis Adjustment, and Piping>
3-17
IM 11Y01D01-01EN 3rd Edition: Jun. 10, 2016-00
CAUTION
Check that the TDLS8000 is turned off before setting SW1 or SW2. Otherwise, the TDLS8000
may be damaged.
n
Connecting a Pressure Meter and Thermometer
Connect the analog output terminals of the transmitters as follows. The terminal polarity is the
same for Passive AI and Active AI.
AO-1 AI-2 AO-2 AI-1 DI-1
+
+ - + -
-
FAULT DI-2 DO
+
-
Internal
ground terminal
Temperature transmitter
Sensor control unit
Terminal B
Pressure transmitter
n
When Connecting an External Power Supply Such as a Distributor
If you need to connect an external power supply such as a distributor to a 2-wire system
transmitter, connect it as follows. Set the switch to Passive AI.
AO-1 AI-2 AO-2 AI-1 DI-1 FAULT DI-2 DO
+
+
-
-
Internal
ground terminal
Sensor control unit
Terminal B
External power supply
24V DC
Pressure transmitter
l
Wiring procedure
• For the cable type to use, see “
n
Types of Wiring and Cabling”.
• Be sure to ground the cable shield on the TDLS8000 side and on the other side.
• When supplying power to the transmitters from the TDLS8000, take into account the drop in
the transmitter supply voltage due to wiring resistance and the like.