Duct humidity and temperature sensor HYGRASGARD® KFTF-U LM235Z

Measured variables

output

Display

Protection type

output model

Item no. 1201-3111-2021-029

EAN 4251325610368

Product group: WG01

Duct humidity and temperature sensor HYGRASGARD® KFTF

Calibratable HYGRASGARD® KFTF (± 2,0%) or KFTF - 20 (± 1,8%) duct humidity/temperature transmitter (±2,0% or ± 1,8%, respectively) with plastic sinter filter (metal sinter filter optional), housing made of impact resistant plastic with quick-locking screws, optionally with/without display, with cable gland (optionally with M12 connector according to DIN EN 61076-2-101).

The sensor device measures relative humidity and/or air temperature and converts the measurands into a standard signal of 0-10 V or 4...20 mA. It supports four switchable temperature ranges and is applied in non-aggressive dust-free atmospheres in refrigeration, air conditioning, ventilation and cleanroom engineering. The measuring transducer provides precise detection of humidity. A digital long-term stable sensor is used as measuring element for humidity. The sensor is factory-calibrated and can be fine-tuned to ambient conditions by an expert.

Voltage supply

24 V AC (± 20 %) and
15…36 V DC

Power consumption

< 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC

Data points

temperature [°F], relative humidity [% RH]

Measuring range, humidity

0...100 % RH

Deviation of humidity

typical ± 2 % RH (20…80 % RH ); at + 77 °F, otherwise ± 3 %

Output, humidity

0 - 10 V

Measuring range, temperature

multi-range switching
with 4 switchable measuring ranges
-31...+95 °F; -31...+167 °F; +32...+122 °F; +32...176 °F
(output corresponding to 0 -10 V or 4...20 mA)

Temperature deviation

typically ± 0.4 °F at +77 °F

Output, temperature

0 - 10 V

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

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

Ambient temperature

storage –31...+185 °F;
operation – 22...+167 °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)

Electrical connection

2-, 3- or 4-wire connection
AWG 26 - 16 via terminal screws on circuit board

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)

Housing

plastic, UV-stabilised,
material polyamide, 30 % glass-globe reinforced,
with quick-locking screws
(slotted/ Phillips head - combination),
colour traffic white (similar to RAL 9016)

Housing dimensions

2.8 x 2.5 x 1.5 (2.0) in (Tyr 1)

Cable gland

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

Long-term stability

± 1 % per year

Permissible air humidity

< 95 % RH, non-precipitating air

Protection class

III (according to EN 60 730)

Protection type

IP 65 (according to EN 60 529) Housing tested,
TÜV SÜD, Report No.713139052 (Tyr 1)