Vaisala HMD60 - Manual (Page 2)

HMD60U/Y
Operating Manual
HMD60U/Y-M210276en-A
2 2003-01-22
ELECTRICAL CONNECTIONS
Signal cables are connected to a removeable 5-pole screw connector. Make the
connections according to Figure 3a above. RH test and T test connectors are used with the
HMI41 or HM70 indicator equipped with an appropriate probe and optional calibration
cable.
Figure 3b shows the same connections in alternative way.
T GAIN
RH GAIN
RH OFFSET
T OFFSET
RH TEST
T TEST
1 2 3 4 5
+ RH - RH + T - T
POWER SUPPLY
CHART RECORDER
AMMETER
OR CONTROLLER CHART RECORDER
AMMETER
OR CONTROLLER
TEMPERATURE
10...35 VDC
+ + ------------
RH
+
------------ ------------
-RH +T +RH -T
T G A IN
R H G A IN
R H O FF S E T
T O F F S E T
T
T E S T
1 2 3 4 5
m A
+
T E S T
R H
m A
-
m A mA
+ -
or or
Figure 3a. Electrical
connections.
Figure 3b. Electrical
connections.