Vaisala HMP140 - Manual (Page 21)

HMP140A SERIES
U175en-1.5 Appendix 1
1999-12-08 1
APPENDIX 1: CURRENT OUTPUT MODULE
X15
X16
Spare jumpers Current module
RH output
selection
T output
selection
Figure 1
The current module is available only for HMP142A and HMP143A
transmitters. To install the current module to connectors X15 and X16, first
disconnect the jumpers (4 pcs). Insert them to the connector for spare jumpers
(see Figure 1) and install the current module. Note that the module must be
installed exactly as indicated in Figure 1. The jumpers for RH and T output
selections must be connected in two middle pins of the connectors (Figure 1).
Recalibrate the transmitter after having installed the current module. The
maximum error in output without recalibration is
±
0.5 %FS.