Wiring Plan; Setup With Pactware; Connect The Pc; Parameter Adjustment With Pactware - WIKA LH-20 Manual De Instrucciones

4.2

Wiring plan

4 ... 20 mA
Abb. 10: Wire assignment, suspension cable
1 Blue (-): to power supply or to the processing
system
2 Brown (+): to power supply or to the processing
system
3 Shielding
4 Breather capillaries with filter element
4 ... 20 mA/HART
Abb. 11: Wire assignment, suspension cable
1 Brown (+): to power supply or to the processing
system
2 Blue (-): to power supply or to the processing
system
3 White: for processing of the integrated Pt 100
(power supply)
4 Yellow: for processing of the integrated Pt 100
(measurement)
5 Red: for processing of the integrated Pt 100 (mea-
surement)
6 Black: for processing of the integrated Pt 100
(power supply)
7 Shielding
8 Breather capillaries with filter element
WIKA Operating instructions - Submersible pressure transmitter model LH-20
5
5.1
4
Connecting the PC to the signal cable
1
2
2 3
8
1
2
3
Abb. 12: Connecting the PC to the signal cable
4
5
1
6
2
7
3
4
5
Necessary components:
•
•
•
•
•
5.2
The further setup steps with detailed descrip-
tions can be found in the online help of PACTwa-
re and the DTMs.

Setup with PACTware

Connect the PC

3
2
PC with PACTware
RS232, USB or Bluetooth interface
HART modem
HART resistance
Power supply unit
Model LH-20 with signal output 4 ... 20 mA/
HART
PC with PACTware and suitable DTM
HART modem
HART resistance approx. 250 Ω
Power supply unit 24 V
Note:
With power supply units with integrated
HART resistance (internal resistance
approx. 250 Ω) no additional external
resistance is necessary. In such cases,
the HART modem can be connected in
parallel to the 4 ... 20 mA cable.
Parameter adjustment with
PACTware
Note:
Keep in mind that for the setup of model
LH-20, the current version of the DTM-
Collection must be used.
4
5
1
19