Vaisala HMD60U Operating Manual

HMD60U/Y-U166en-1.2
HUMIDITY TRANSMITTER HMD60U
HUMIDITY AND TEMPERATURE TRANSMITTER HMD60Y
MOUNTING
62 (2.44) 250 (9.84)
Ø 12
(0.47)
100 (3.94)
Mounting hole 82 (3.23)>>>
Figure 1 Dimensions of the HMD60U/Y
GROUNDING
flexible wires 0.5 mm²
(AWG 20), stranded wires
recommended
3
braid
brass
disks
25
rubber
ring
nut
D = Ø 7...10mm
cable
(If the cable diameter is less
than 7mm, use a shrinking
tube or an adhesive tape)
Figure 2 Signal cable grounding with
bushing 18941HM
1996-04-12
shielding tube
braid
brass disks
The HMD60U/Y
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 indicator equipped with an
appropriate probe
calibration cable.
Open the lid and mount the cable
bushing set 18941HM. Do the grounding
according to Figure 2. W
the signal cable to the transmitter housing,
fold the cable braid between the brass disk
in order to achieve the best EMC per-
formance. Do not leave the bare shield of
the connected wires so that it can
shortcircuit the electronics!
HMD60U/Y
Operating Manual
humidity and
and optional
hen connecting
1