The HMD60U/Y humidity and
temperature transmitters are two-wire
transmitters. They are duct mounted, and
the electronics can be disconnected
without dismantling the installation.
Mount the transmitter with two screws.
Place the drilling template on the duct
surface and drill the holes as indicated.
Remember to drill an additional hole for
calibration purposes. The calibration can
be conveniently performed on site with
the HMI41 or HM70 portable indicators
equipped with an appropriate probe and
optional calibration cable.
Figure 1 Dimensions of the HMD60U/Y
GROUNDING
Figure 2 Signal cable grounding with
bushing 18941HM
Open the lid and mount the cable
bushing set 18941HM. Ground the cable
by connecting the contact tongues inside
the bushing to an exposed length of cable
braid as shown in Figure 2. To minimize
short-circuit risk, do not expose more
cable braid than is necessary for
connecting the braid to the contact
tongues.
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