Duct humidity sensor for mixture ratio HYGRASGARD® KAVTF

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Product group: WG01

The universal HYGRASGARD® KAVTF humidity measuring transducer with 6 output values is used to determine diverse measurands in humidity measuring. Measurands include relative humidity and ambient air temperature. These measurands are used to calculate various parametres internally.

The transmitters have been designed to operate in pollutant-free, non-precipitating air with neither above-atmospheric nor below-atmospheric pressure at the sensors. Application examples include medical, refrigeration, air conditioning and clean room engineering. The sensors are suitable for duct installation.

Power consumption

< 1 W at 24 V DC; < 2 VA at 24 V AC

Data points

Temperature [°F], relative humidity [% RH],
dew point [°F], absolute humidity [gr/ft³],
mixture ratio [gr/lb], enthalpy [Btu/lb]

Measuring range, humidity

multi-range switching with 8 switchable measuring ranges
0...100 % r. H. (default)

Operating range, humidity

10...95 % RH, without formation of dew

Measuring range, temperature

multi-range switching with
4 switchable measuring ranges
0...+50 °C (default); –20...+80 °C; –35...+75 °C; –35...+35 °C

Operating range, temperature

-31...+176 °F sensors

Measuring accuracy

typically ± 0.4 °F at +77 °F

Sensor protection

plastic sinter filter, Ø 0.63 in, L = 1.38 in, exchangeable
(optional metal sinter filter, Ø 0.63 in, L = 1.26 in)

Measuring ranges

+32...+122 / -4...+176 / -31...+167 / -31...+95 °F
0...100 % RH

Accuracy

typical ± 2 % RH (20…80 % RH ); at + 77 °F, otherwise ± 3 % RH
Deviations of other outputs result from
deviations of humidity and temperature.

Ambient temperature

storage –31...+185 °F,
operation –22...+158 °F, non-precipitating

Process connection

by mounting flange, plastic
(included in the scope of delivery)

Protective tube

PLEUROFORM, material polyamide (PA6), with torsion protection,
Ø 0.79 in, NL = 9.3 in (optionally 3.9 in), vmax = 98.4 ft/s (air)
(option on request in stainless steel V2A (1.4301), Ø 0.63 in)

Cable connection

cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 0.4 in) or
M12 connector according to DIN EN 61076-2-101 (optional on request)

Cable gland

M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 0.4 in

Protection class

III (according to EN 60 730)

Protection type

IP 65 (according to EN 60 529) enclosure only!

Protection type housing

IP 65

Standards

CE conformity,
electromagnetic compatibility according to EN 61326,
according to EMC Directive 2014/ 30/ EU

Operating instructions

CE - Declaration of Conformity