531
HUMIDITY
HUMIDITY
9
WE MAKE IT EASY.
kele.com 888-397-5353 USA
March 2014
3% WALL, DUCT AND OSA HUMIDITY TRANSMITTERS
H_30K SERIES
Duct and OSA with TT option only
Temperature
4-20 mA
signal
Power supply
24 VDC
Humidity
4-20 mA
signal
T
V+
RH
Room, Duct, OSA (RH or RH-T)
Humidity
4-20 mA
signal
T
V+
Optional
temperature
sensor
RH
Power Supply
24 VDC
WIRING FOR RH ONLY AND "T" TEMPERATURE OPTION WIRING FOR RH AND "TT" TEMPERATURE OPTION
MOUNTING ROOM SENSOR
ORDERING INFORMATION
MOUNTING OSA SENSOR
DIAGRAM 1: The transmitter should be mounted so that the 9" (22.86 cm) probe is in
the center of the duct. The transmitter should be duct mounted away from fans, corners,
heating and cooling coils, and other equipment that will affect the measurement of
relative humidity.
White
Faceplate
(standard)
Plate
Mounting
Screws
Wire Access
Hole
Supplied Handy Box
Cover
Mounting
DIAGRAM 2: The sensor should be mounted approximately 5' (12.7 cm) above the floor,
on an interior wall, away from any heating or cooling generating devices. Basic model
comes with screw terminal block, two #6-32 screws for handybox mounting, and two #6 x
1" screws for direct wall mounting. Cover screws are #6-32 with a 1/16 allen key head.
Precautions should be taken to prevent air infiltration from inside the wall.
DIAGRAM 2
The transmitter should be mounted preferably
on the north side (Northern Hemisphere) of a
building under the eave, not above windows
or doors. The transmitter should be mounted
vertically with the sensor slots pointing down.
MODEL DESCRIPTION
HW30K 3% beige room humidity transmitter, 4-20 mA output
HD30K 3% duct-mount humidity transmitter, 4-20 mA output
HO30K 3% OSA-mount humidity transmitter, 4-20 mA output
OPTIONS (Temperature Sensors or Transmitters)
-- No temperature sensor
T3 10,000Ω thermistor @ 77°F (25°C), Type III
T21
2252Ω thermistor @ 77˚F (26˚C), Type II
T22
3000Ω thermistor @ 77˚F (26˚C), Type II
T24 10,000Ω thermistor @ 77°F (25°C), Type II
T27
100,000Ω thermistor @ 77˚F (26˚C), Type II
T42 20,000Ω thermistor @ 77˚F (26˚C), Type IV
T63
1000Ω nickel SS flush mounted plate RTD @ 70˚F (26˚C), Type III (yellow leads)
T81 100Ω RTD @ 32˚F (0˚C), 385 platinum curve
T85 1000Ω 385 platinum RTD
T91 1000Ω 375 platinum RTD
TT-2 -20° to 140°F (-29° to 60°C) transmitter, 4-20 mA (duct and OSA only)
TT-3 0° to 100°F (-18° to 38°C) transmitter, 4-20 mA (duct and OSA only)
XN1 NIST 1 point, 30% (Humidity only)
XN2 NIST 2 point, 30% and 50% (Humidity only)
XN3 NIST 3 point, 30%, 50% and 70% (Humidity only)
HD30K T3
Example: HD30K-T3 Duct-mount humidity sensor with
10 kΩ Type III temperature sensor
DIAGRAM 1
RELATED PRODUCTS PAGE
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DCP-1.5-W Power supply, 24 VAC IN to 24 VDC OUT 995
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