Vaisala HUMICAP HMW90 SERIES Specifikace stáhnout pdf (Strana 38)

HUMIDITY

532

HUMIDITY

WHEN YOU NEED IT RIGHT, RIGHT NOW, CALL KELE.

kele.com888-397-5353 USA

March 2014

3% HUMIDITY TRANSMITTER & OPTIONAL TEMPERATURE TRANSMITTERS

HD31K, HO31K, HW31K

Accuracy 3% RH @ 73°F (23°C) from 5% to

90%; (0-5% & 90%-100%) add 4%

Thermal Effect 0.05% per °F

Stability typically <±1% drift per year

Supply Voltage 9.5-28 VDC

Signal Output RH: 4-20 mA Temperature: 4-20 mA

optional thermistor, RTD

Maximum Output

Impedance 725Ω @ 24VDC

(Supply voltage - 9.5V) / 0.02)

Measurement Range

RH 0-100%

Temperature -20° to 140°F (29° to 60°C) (see

ordering information)

Sensor Protection Sintered ﬁlter (duct and OSA)

Operating Humidity 0-100% RH non-condensing

Operating Temperature -20° to 158°F (-29° to 70°C)

Enclosure Rating White plastic

Wiring Terminations Screw terminals for loop termination

Weight

Room 0.3 lb (0.09 Kg)

Duct 0.58 lb (0.26 Kg)

OSA 0.72 lb (0.33 Kg)

Approvals RoHs

Warranty 18 months

DESCRIPTION

The Kele Models HW31K, HD31K, and HO31K 3%

Humidity Transmitters are speciﬁcally designed for use in

HVAC/BAS applications. These instruments measure relative

humidity from 0% to 100%. The standard twowire, 4-20 mA

output provides low-cost humidity monitoring for building

control. The RH transmitters are available with thermistor

or RTD temperature sensors or a 4-20 mA rangeable

temperature transmitter. They are available in room, duct, and

OSA mounting styles.

FEATURES

• 0% to 100% RH measurement

• 3% accuracy (5% to 90% RH)

• Two-wire, 4-20 mA output

• White plastic design

OPERATION

The transmitter converts the relative humidity into a 4-20

mA signal with 3% accuracy. The optional temperature

sensors, thermistor or RTD, offer direct connections to most

automation systems. The optional rangeable temperature

transmitter offers a 4-20 mA signal and is rangeable from -30°

to 250°F (-34° to 121°C).

OPTIONS:

• Temperature thermistor

• Temperature RTD

• Temperature 4-20 mA for duct and OSA

SPECIFICATIONS

HW31K

HD31K

HO31K

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Vaisala HUMICAP HMW90 SERIES Specifikace Strana 38

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