Vaisala Humicap HMD60U User manual

HMD60U/Y
HMD60U/Y-U166en-1.2 Operating Manual
1996-04-12 1
HUMIDITY TRANSMITTER HMD60U
HUMIDITY AND TEMPERATURE TRANSMITTER HMD60Y
MOUNTING
Ø 12
(0.47)
250 (9.84)62 (2.44)
100 (3.94)
100 (3.94)
Mounting hole 82 (3.23)>>>
Mounting hole 82 (3.23)>>>
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 indicator equipped with an
appropriate probe and optional
calibration cable.
Figure 1 Dimensions of the HMD60U/Y
GROUNDING
(If the cable diameter is less
than 7mm, use a shrinking
tube or an adhesive tape)
cable
braid
flexible wires 0.5 mm²
(AWG 20), stranded wires
recommended
D = Ø 7...10mm
3
brass
disks 25
rubber
ring
nut
brass disks
140
165
shielding tube
braid
Figure 2 Signal cable grounding with
bushing 18941HM
Open the lid and mount the cable
bushing set 18941HM. Do the grounding
according to Figure 2. When connecting
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 HMD60U/Y-U166en-1.2
21996-04-12
ELECTRICAL CONNECTIONS
-RH +T+RH -T
T GAIN
RH GAIN
RH OFFSET
T OFFSET
T
TEST
12345
mA
+
TEST
RH
mA
-
mA mA
+
-
or or
Figure 3: Electrical connections
Signal cables are connected to a removeable 5-pole screw connector. Make the
connections according to Figure 3 above. RH test and T test connectors are
used with the HMI41 indicator equipped with an appropriate probe and
optional calibration cable.

HMD60U/Y
HMD60U/Y-U166en-1.2 Operating Manual
1996-04-12 3
ELECTRONICS
10528HM
18941HM
GLANDS
LID
SCREW TERMINAL
SCREWS
MEMBRANE FILTER
part no. 17039HM
SPARE PART SENSOR
HUMICAP180
STAINLESS STEEL SINTERED FILTER
part no. HM46670
TO REMOVE THE SENSOR HEAD:
1. Open the lid
2. Disconnect the screw terminal
3. Open the screws (2 pcs)
4. Pull out carefully
TO REINSTALL THE SENSOR HEAD:
1. Push in the sensor head
2. Fasten the screws
3. Connect the screw terminal
4. Close the lid
Electronics (can be disconnected), accessories, spare parts
ONE-POINT RH-CALIBRATION
The accuracy is recommended to be
checked at least once a year; the interval
depends on the operating conditions and
the required accuracy of the
measurement. The transmitter calibration
can be conveniently checked with the
HMI41 indicator equipped with an
appropriate probe and optional
calibration cable. If adjustment is
needed, use the one-point calibration
potentiometer. If you prefer to calibrate
the HMD60U/Y transmitters against
saturated salt solutions, use LiCl (11
%RH) and NaCl (75 %RH) solutions.
REPLACEMENT OF THE HUMICAP
SENSOR AND THE FILTER
Remove the damaged sensor and insert a
new one. Recalibrate the transmitter.
Replace a dirty filter (membrane or
sintered) to ensure a maximum lifetime
and a fast response for the sensor. Do not
attempt to clean the filter.

HMD60U/Y
Operating Manual HMD60U/Y-U166en-1.2
41996-04-12
TECHNICAL DATA
Relative humidity
Measurement range 0...100 %RH
Output signal
Accuracy at +20 °C
10 4020 605030 8070 %RH
%RH
3
2
1
0
-1
-2
-3
090 100
Temperature dependence
-20 200
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
8040 60 °C10-10 30 50 70
%RH
Humidity sensor HUMICAP180
Response time (90%)
at 20 °C in still air 15 s with membrane
filter
Temperature (Y model only)
Measurement range -20...+80 °C
Accuracy
-10
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
°C
0-20 10 20 30 40 50 60 70 80 °C
Linearity better than 0.1 °C
Temperature sensor Pt 1000 IEC 751 class B
General
Supply voltage 10...35 VDC (RL= 0Ω)
20...35 VDC (RL=500Ω)
Output signal 4...20 mA
Operating temperature range:
electronics -5...+55 °C
sensor head -40...+80 °C
Storage temperature range -40...+80 °C
Housing:
sensor head stainless steel
electronics housing cast aluminium
Cable lead-through:
bushing for 7...10 mm (PG9)
cable (housing IP65 /
NEMA 4),
part no. 18941HM
or armoured cable glands part no. 10528HM
Sensor protection:
standard membrane filter
(part no. 17039HM)
option stainless steel sintered
filter
(part no. HM46670)
Connections screw terminals
0.5...1.5 mm2
Electromagnetic compatibility
The emission and immunity tests have been performed
according to standards EN50081-1 and EN50082-1.
Emissions:
Test Setup according to Performance
Radiated
interference EN55022 class B
Immunity:
Test Setup according to Performance
Electrostatic
discharge IEC 801-2:1991 criteria B
Electrical fast
transients IEC 801-4:1988 criteria B
RF-radiated
fields IEC 801-3:1984 criteria A
*GSM-field
immunity ENV50204:1995 criteria A
(*additional test)
GUARANTEE
Vaisala issues a guarantee for the material and
workmanship of this product under normal operating
conditions for one year from the date of delivery.
Exceptional operating conditions, damage due to
careless handling or misapplication will void the
guarantee.

HMW60U/Y
HMW60U/Y-U190en-1.2 Operating Manual
1996-08-16 1
HUMIDITY TRANSMITTER HMW60U
HUMIDITY AND TEMPERATURE TRANSMITTER HMW60Y
MOUNTING
The HMW60U/Y humidity and tempera-
ture transmitters are truly two-wire
transmitters that can be mounted directly
on the wall. First attach the base plate
with the two screws provided. Thread
wires through the opening in the
transmitter board. Note the UP sign
which shows the correct mounting
position. Be careful not to damage the
HUMICAP180 sensor.
ELECTRICAL CONNECTIONS
-RH
+T
+RH
-T
T OFFSET
RH
RH
T GAIN
OFFSET GAIN
RH TEST T TEST
mA
mA OR
+
-
mA
mA
+
OR
-
RH T
X3 X4
UP
(wet)
(dry)
HUMICAP
sensor sensor
Figure 2 Electrical connections
Signal cables are connected to a
removeable 5-pole screw connector.
Make the connections according to
Figure 2.
110 (4.33)
85 (3.35)
33 (1.30)
Figure 1 Dimensions of the HMW60U/Y
REPLACEMENT OF THE HUMICAP
SENSOR
Remove the damaged sensor and insert a
new one. Handle the sensor by the plastic
socket. Recalibrate the transmitter.
ONE-POINT RH-CALIBRATION
The accuracy is recommended to be
checked at least once a year; the interval
depends on the operating conditions and
the required accuracy of the measure-
ment. If adjustment is necessary, use the
RH offset potentiometer. The transmitter
calibration can be conveniently checked
with the HMI41 indicator equipped with
an appropriate probe and optional
calibration cable.

HMW60U/Y
Operating Manual HMW60U/Y-U190en-1.2
21996-08-16
TECHNICAL DATA
Relative humidity
Measurement range 0...95 %RH
(output signal corresponds to 0...100 %RH)
Accuracy at +20 °C
10 4020 605030 8070 %RH
%RH
3
2
1
0
-1
-2
-3
090 100
Temperature dependence
200
1.0
0.5
0
-0.5
-1.0
40 60 °C
%RH
10 30 50-10
Response time (90%)
at 20 °C in still air 15 s
Humidity sensor HUMICAP180
Temperature (Y model only)
Measurement range -5...+55 °C
Accuracy
-10 10040 50
20 60 30 °C
°C
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
Linearity better than 0.1 °C
Temperature sensor Pt 1000 IEC 751
class B
General
Supply voltage 10...35 VDC (RL= 0Ω)
20...35 VDC (RL=500Ω)
Output signal 4...20 mA
Operating temperature
range -5...+55 °C
Storage temperature range -40...+80 °C
Long-term humidity range
for electronics 0...85 %RH
Housing:
cover ABS plastic
base plate PA
Connections Screw terminals
0.5...1.5 mm2
Electromagnetic compatibility
The emission and immunity tests have been performed
according to standards EN50081-1 and EN50082-1.
Emissions:
Test Setup according to Performance
Radiated
interference EN55022 class B
Immunity:
Test Setup according to Performance
Electrostatic
discharge IEC 801-2:1991 criteria B
Electrical fast
transients IEC 801-4:1988 criteria B
RF radiated
fields IEC 801-3:1984 criteria A
*GSM-field
immunity ENV50204:1995 criteria A
(*additional test)
GUARANTEE
Vaisala issues a guarantee for the material and
workmanship of this product under normal operating
conditions for one year from the date of delivery.
Exceptional operating conditions, damage due to
careless handling or misapplication will void the
guarantee.

HMD70U/Y
HMD70U/Y-U162en-1.4 Operating Manual
1996-08-21 1
HUMIDITY TRANSMITTER HMD70U
HUMIDITY AND TEMPERATURE TRANSMITTER HMD70Y
MOUNTING
Ø 12 (0.47)
250 (9.84)
62 (2.44)
<<< Mounting hole
82 (3.23)
100 (3.94)
>>>
100 (3.94)
82 (3.23)
Mounting hole
Figure 1: Dimensions of the HMD70U/Y
The HMD70U/Y duct mounted humidity
and temperature transmitters are three-
wire transmitters. 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 and optional calibration cable.
GROUNDING
(If the cable diameter is less
than 7mm, use a shrinking
tube or an adhesive tape)
cable
braid
(AWG 20), stranded wires
recommended
D = Ø 7...10 mm
brass
disks
rubber
ring
nut
brass disks
shielding tube
braid
3
140
165
25
flexible wires 0.5 mm²
Figure 2: Signal cable grounding
Open the lid and mount the cable bushing
set. If your transmitter has cable gland
bushing (part no. 18941HM), do the
grounding according to the Figure 2.
When connecting the signal cable to the
transmitter housing, fold the cable braid
between the brass disk in order to achieve
the best EMC performance. Do not leave
the bare shield of the connected wires so
that it can shortcircuit the electronics!

HMD70U/Y
Operating Manual HMD70U/Y-U162en-1.4
21996-08-21
ELECTRICAL CONNECTIONS AND INSTALLATION OF THE CURRENT MODULE
INSTALLATION OF
THE CURRENT MODULE 18945HM
1. Take off the jumpers
2. Connect the module; note the
right direction!
3. Connect the power supply
OUTPUT SELECTIONS
0...1V
0...5V
0...10V
0...20mA
current
module
T
RH
RH
RH
RH
T
T
T
T
RH
TEST
CONNECTOR
111
12 345
current module 0...20 mA
U
U
U
U
RH OFFSET
T OFFSET Us
RH
out T
out GND
V/mA
DC/AC
power supply
V/mA
RH GAIN
T GAIN
Figure 3: Electrical connections and installation of the current module
CONNECTION TO AN AC SUPPLY
HMD70U/Y transmitter Controller
VAC
VAC
Us
GND
signal
RH/T
GND
Us RH/T
signal
HMD70U/Y transmitter
Figure 4: The recommended AC connection
HMD70U/Y transmitter
HMD70U/Y transmitter
Controller
shared
common line
VAC
GND
GND
Us
Us
RH/T
RH/T
signal
signal
Figure 5: A common loop formed in an AC
connection
The HMD70U/Y transmitters can also be
connected to an AC supply without an
external rectifier. However, when more
than one transmitter is connected to one
AC transformer, a common loop is
formed and there is an increased risk of a
short-circuit. To avoid this, use a
separate floating supply for each
transmitter (see Figure 4). However, if
several transmitters have to share one
transformer, the phase (~) must always
be connected to Us connector in each
transmitter (see Figure 5).

HMD70U/Y
HMD70U/Y-U162en-1.4 Operating Manual
1996-08-21 3
10528HM
18941HM
GLANDS
LID
SCREW TERMINAL
SCREWS
MEMBRANE FILTER
part no. 17039HM
SPARE PART SENSOR
HUMICAP180
STAINLESS STEEL SINTERED FILTER
part no. HM46670
TO REMOVE THE SENSOR HEAD:
1. Open the lid
2. Disconnect the screw terminal
3. Open the screws (2 pcs)
4. Pull out carefully
TO REINSTALL THE SENSOR HEA
D
1. Push in the sensor head
2. Fasten the screws
3. Connect the screw terminal
4. Close the lid
Figure 6: Electronics (can be disconnected), accessories and spare parts
ONE-POINT RH CALIBRATION
The accuracy is recommended to be
checked at least once a year; the interval
depends on the operating conditions and
the required accuracy of the
measurement. When checking the
transmitter calibration, use the HMI41
indicator provided with an appropriate
probe and optional calibration cable. If
adjustment is necessary, use the humidity
offset potentiometer. If you prefer to
calibrate the HMD70U/Y transmitters
against saturated salt solutions, use LiCl
(11 %RH) and NaCl (75 %RH) solutions.
REPLACEMENT OF THE HUMICAP
SENSOR AND THE FILTER
Remove the damaged sensor and insert a
new one. Recalibrate the transmitter.
Replace a dirty filter (membrane or
sintered) to ensure a maximum lifetime
and a fast response time for the sensor.
Do not attempt to clean the filter.

HMD70U/Y
Operating Manual HMD70U/Y-U162en-1.4
41996-08-21
TECHNICAL DATA
Relative humidity
Measurement range 0...100 %RH
Accuracy at 20 °C
10 4020 605030 8070 %RH
%RH
3
2
1
0
-1
-2
-3
090 100
Temperature dependence
-20 200
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
8040 60 °C10-10 30 50 70
%RH
Response time (90%)
at +20 °C in still air 15 s with membrane
filter
Humidity sensor HUMICAP180
Temperature (Y model only)
Measurement range -20...+80 °C
Accuracy
-10
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
°C
0-20 10 20 30 40 50 60 70 80 °C
Linearity better than 0.1 °C
Temperature sensor Pt 1000 IEC 751class B
General
Supply voltage range depends on the selected output
signal. When AC supply is used, an isolated source is
recommended. The current outputs require an
optional output module, part no. 18945HM.
DC AC
0...1 V 10...35 V 9...24 V
0...5 V 14...35 V 12...24 V
0...10 V 19...35 V 16...24 V
0...20 mA (RL= 0 Ω) 10...35 V 11...24 V
0...20 mA (RL= 500 Ω) 20...35 V 17...24 V
Factory setting 0...1V. Other outputs selectable by
jumper connections. An output change causes an error
which is less than 0.5 %RH without recalibration.
Operating temperature range:
electronics -5...+55 °C
sensor head -40...+80 °C
Storage temperature range -40...+80 °C
Housing:
sensor head stainless steel
electronics housing cast aluminium
Cable glands
bushing for 7...10 mm (PG9)
cable (housing IP65/
NEMA 4),
part no 18941HM
or armoured cable glands part no 10528HM
Sensor protection:
standard membrane filter
(part no. 17039HM)
option stainless steel sintered
filter
(part no. HM46670)
Connections screw terminals
0.5...1.5 mm2
Electromagnetic compatibility
The emission and immunity tests have been performed
according to standards EN50081-1 and EN50082-1.
Emissions:
Test Setup according to Performance
Radiated
interference EN55022 class B
Immunity:
Test Setup according to Performance
Electrostatic
discharge IEC 801-2:1991 criteria B
Electrical fast
transients IEC 801-4:1988 criteria B
RF-radiated
fields IEC 801-3:1984 criteria A
*GSM-field
immunity ENV50204:1995 criteria A
(* additional test)
GUARANTEE
Vaisala issues a guarantee for the material and
workmanship of this product under normal operating
conditions for one year from the date of delivery.
Exceptional operating conditions, damage due to
careless handling or misapplication will void the
guarantee.