On-wall humidity and temperature sensor HYGRASGARD® AFTF-20-U Q LCD

Measured variables

output

Display

output model

Item no. 2003-6122-1100-001

EAN 4251325624549

Product group: WG02

On-wall humidity and temperature sensor HYGRASGARD® AFTF-20

Calibratable HYGRASGARD® AFF-20 / AFTF-20 (± 1,8%) outside humidity/temperature transmitters 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 measuring transducers measure the relative humidity and/or temperature of the air and convert the measurands into a standard signal of 0-10 V or 4...20 mA. They support four switchable temperature ranges and are applied in non-aggressive, dust-free atmospheres in refrigeration, air conditioning, ventilation and cleanroom engineering. Relative humidity (in % r.H.) is the quotient of water vapour partial pressure divided by the saturation vapour pressure at the respective gas temperature. These measuring transducers provide precise detection of humidity. A digital long-term stable sensor is used as measuring element for humidity. The sensor devices are 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 [°C], relative humidity [% RH]

Measuring accuracy

± 1,8 %

Load resistance

RL > 5 kOhm

Measuring range, humidity

0...100 % RH
(output corresponding to 0 -10 V)

Deviation of humidity

typical ± 1.8 % (10…90 % RH ); at + 25 °C, otherwise ± 2,0 %

Protection type

IP 65 (according to EN 60 529)*

Output, humidity

0 - 10 V

Protection type housing

IP 65

Measuring range, temperature

multi-range switching
–35...+35 °C; –35...+75 °C; 0...+50 °C; 0...+80 °C
(output corresponding to 0 -10 V or 4 … 20 mA)

Temperature deviation

typically ± 0.2 K at +25 °C

Output, temperature

0 - 10 V

Sensor protection

plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)

Measuring ranges

–35...+35 / –35...+75 / 0...+50 / 0...+80 °C
0...100 % RH

Ambient temperature

storage –35...+85 °C; operation – 30...+80 °C, non-precipitating

Process connection

by screws

Protective tube

stainless steel V2A (1.4301), Ø 16 mm
NL = 88.5 mm

Electrical connection

2-, 3- or 4-wire connection
0.14 -1.5 mm ² via terminal screws on circuit board

Cable connection

cable gland, plastic (M 16 x 1.5; with strain relief, exchangeable, max. inner diameter 10.4 mm) 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 cover for display is transparent !

Housing dimensions

126 x 90 x 50 mm (Tyr 2)

Cable gland

M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm

Long-term stability

± 1 % per year

Permissible air humidity

< 95 % RH, non-precipitating air

Protection class

III (according to EN 60 730)

Standards

CE conformity,
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3