Vaisala HMP260 - Manual (Page 102)

HMP260 SERIES
Appendix 4: Digital current loop module
HMP260-U017en-1.5
1 INSTALLATION
Switch the transmitter off.
Resistors R2, R3 and R4 between connectors X4 and X5 in the component board in
the cover of the transmitter are removed with side-cutting pliers. The module is plugged
in connectors X4 and X5 on the main board of the HMP 260 transmitter; connector X1
on the module board to connector X4 and connector X2 to connector X5.
Connect the data wires to screw terminal X6 on the main board. Switch the power on.
RX GND TX
R2
R3
R4
X6
RX +
TX +
X4 X5
Current loop
module
X1 X2
D
A
T
A
L
O
O
P
S
TX -
RX -
X17