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- Rymaskon
- EtherCAT P
- Accessory
Description
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.
Technical details
Voltage supply
15...36 V DC
depending on working resistance, residual ripple stabilised ± 0.3 V
depending on working resistance, residual ripple stabilised ± 0.3 V
Power consumption
< 1.1 VA/ 24 V DC ; < 2.2 VA/ 24 V AC
Data points
temperature [°F], relative humidity [% RH]
Working resistance
Ra (ohm) = (Ub -14 V)/ 0.02 A for I variant
Measuring accuracy
± 1,8 %
Measuring range, humidity
0...100 % RH
(output corresponding to 4...20 mA)
(output corresponding to 4...20 mA)
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
4...20 mA
Protection type housing
IP 65
Measuring range, temperature
multi-range switching
–31...+95 °F; –31...+167 °F; +32...+122 °F; +32...+176 °F
(output corresponding to 0 -10 V or 4 … 20 mA)
–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
4...20 mA
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)
(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
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 = 137 mm
NL = 137 mm
Electrical connection
2-, 3- or 4-wire connection
AWG 26 - 16 via terminal screws on circuit board
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)
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 !
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
4.96 x 3.54 x 1,97 in (Tyr 2)
Cable gland
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 0.4 in
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)
Standards
CE conformity,
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
according to EMC directive 2014/ 30/ EU,
according to EN 61326-1, according to EN 61326-2-3
Optional
three-line display with illumination, cutout 2.76 x 1.57 in (W x H),
for displaying ACTUAL temperature and/ or ACTUAL humidity
for displaying ACTUAL temperature and/ or ACTUAL humidity