10
Quality product for HVAC sector, accuracy ± 2 % and ± 3 %
Calibratable outdoor humidity
⁄
temperature sensor
HYGRASGARD
®
AFF ⁄ AFTF
(± 3 % ),
AFF - LC ⁄ AFTF - LC
(± 3 % ) and
AFF - 20 ⁄ AFTF - 20
(± 2 %) with
plastic sinter filter (optional metal sinter filter) or
AFF - 25 ⁄ AFTF - 25
(± 2 %)
with pluggable metal sinter filter;
terminal-box enclosure made of impact-resistant plastic,
with ⁄ without optional display
.
It measures the relative humidity and ⁄ or temperature of the air and converts the measurand into a standard signal of 0 - 10 V or 4...20 mA.
They have four switchable temperature ranges and are applied in non-aggressive, dust-free atmospheres in refrigeration, air conditioning,
ventilation and clean room technology. 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 are designed for exact detection of humidity.
A digital long-term stable sensor is used as measuring element for humidity measurement. Fine adjustment by the user is possible.
TECHNICAL DATA:
Power supply: ......................... 24 V AC (± 20 %) and 15...36 V DC (± 10 %) for U variant
15...36 V DC (± 10 %) for I variant (depending on working resistance)
Power consumption: ................. < 1.1 VA ⁄ 24 V DC ; < 2.2 VA ⁄ 24 V AC
Sensors: .................................
digital humidity sensor with integrated temperature sensor,
low hysteresis, high long-term stability
Sensor protection: ...................
AFF ⁄ AFTF, AFF - 20 ⁄ AFTF - 20, AFF - LC ⁄ AFTF - LC:
plastic
sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional
metal
sinter filter, Ø 16 mm, L = 27 mm)
AFF - 25 ⁄ AFTF - 25:
metal
sinter filter, Ø 16 mm, L = 88.5 mm,
with exchangeable, pluggable measuring head (probe)
HUMIDIT Y:
Measuring range, humidity: ....... 0...100 % r. H. (output corresponding to 0 -10 V or 4...20 mA)
Operating range, humidity: ....... 0...95 % r. H. (non-precipitating air)
Deviation, humidity: .................
AFF ⁄ AFTF, AFF - LC ⁄ AFTF -LC:
± 3 % r. H.
(20...80 %) at +20 °C, otherwise ± 5 % r. H.
AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25:
± 2 % r. H.
(20...90 %) at +20 °C, otherwise ± 3 % r. H.
Output, humidity: .................... 0 -10 V at U variant
4...20 mA at I variant, working resistance < 800 Ω, see load resistance diagram
TEMPERATURE:
Measuring range,
temperature: ............................
multi-range switching
(see table)
–35...+35 °C; –35...+75 °C; 0...+50 °C; 0...+80 °C
(output corresponding to 0 -10 V or 4...20 mA)
Operating range,
temperature: ............................ –35...+80 °C
Deviation, temperature: ...........
AFF ⁄ AFTF, AFF - LC ⁄ AFTF -LC:
± 0.8 K at +20 °C, depending on installation location and position
AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25:
± 0.5 K at +20 °C
Output, temperature: .............. 0 -10 V or 4...20 mA or Ohm value
Ambient temperature: .............
AFF ⁄ AFTF, AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25:
storage –35...+85 °C; operation – 30...+80 °C, non-precipitating
AFF - LC ⁄ AFTF -LC:
storage –35...+85 °C; operation – 30...+70 °C, non-precipitating
Electrical connection: .............. 2-, 3-, or 4-wire connection (see connecting diagram),
0.14 - 1.5 mm², via terminal screws on circuit board
Enclosure: .............................. plastic, polyamide, 30 % glass-globe-reinforced,
with quick-locking screws (slotted ⁄ Phillips head combination),
colour traffic white (similar to RAL 9016), enclosure cover for display is transparent!
Enclosure dimensions: ..............
AFF ⁄ AFTF, AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25:
126 x 90 x 50 mm (Tyr 2)
AFF - LC ⁄ AFTF -LC:
72 x 64 x 37.8 mm (Tyr 1 without display)
72 x 64 x 43.3 mm (Tyr 1 with display)
Cable gland: ............................ M 16 x 1.5, including strain relief, exchangeable, max. inner diameter 10.4 mm
Protective tube: ......................
stainless steel,
Ø 16 mm
AFF ⁄ AFTF, AFF - LC ⁄ AFTF -LC:
NL = 55 mm
AFF - 20 ⁄ AFTF - 20:
NL = 47 mm
AFF - 25 ⁄ AFTF - 25:
NL = 88.5 mm
Process connection: ................. by screws
Long-term stability:................. ± 1 % per year
Humidity: ................................. < 95 % r. H., non-precipitating air
Protection class: ..................... III (according to EN 60 730)
Protection type: ...................... IP 65 (according to EN 60 529) enclosure only!
Standards: .............................. CE conformity, according to EMC directive 2004 ⁄ 108 ⁄ EC, according to EN 61326-1, according to EN 61326-2-3
Optional: .................................
display with i
illumination, for displaying ACTUAL temperature and ⁄ or ACTUAL humidity
AFF ⁄ AFTF, AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25
(Tyr 2)
:
three-line, cutout approx. 70 x 40 mm (W x H)
AFF -LC ⁄ AFTF - LC
(Tyr 1)
:
two-line, cutout approx. 36 x15 mm (W x H)
G
HYGRASGARD
®
AFF - xx ⁄ AFTF - xx
Rev. 2015 - 2.1 GB
LC = Rev. 2015 - 1.0 GB
10
