S+S REGELTECHNIK AFF Serie Bedienungs- Und Montageanleitung Seite 10

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®
HYGRASGARD
Calibratable outdoor humidity ⁄ temperature sensor HYGRASGARD
AFF - 20 ⁄ AFTF - 20 (± 1,8 %) with plastic sinter filter (optional metal sinter filter) or
AFF - 25 ⁄ AFTF - 25 (± 1,8 %) with pluggable measuring head with metal sinter filter; housing made of impact-resistant plastic with quick-locking
screws, optionally with ⁄ without display, with cable gland (optional M12 connector according to DIN EN 61076-2-101).
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. The sensor is factory-calibrated; an environmental precision adjustment by an expert is possible.
TECHNICAL DATA
Power supply:
Working resistance:
Load resistance:
Power consumption:
Sensors:
HUMIDIT Y
Measuring range, humidity:
Operating range, humidity:
Permitted humidity:
Deviation in humidity:
Output humidity:
TEMPERATURE
Measuring range, temperature: multi-range switching (see table)
Ambient temperature:
Deviation, temperature:
Output, temperature:
Electrical connection:
Cable connection:
Housing:
Housing dimensions:
Protective tube:
Sensor protection:
Process connection:
Long-term stability:
Protection class:
Protection type:
Standards:
Optional:
AFF - xx ⁄ AFTF - xx
24 V AC (± 20 %); 15...36 V DC for U variant
15...36 V DC for I variant, depending on working resistance, residual ripple stabilised ± 0.3 V
R (ohm) = (U -14 V) ⁄ 0.02 A for I variant, see load resistance diagram
a b
R > 5 kOhm for U variant
L
< 1.1 VA ⁄ 24 V DC ; < 2.2 VA ⁄ 24 V AC
digital humidity sensor with integrated temperature sensor,
low hysteresis, high long-term stability
0...100 % r. H.
AFF - SD ⁄ AFTF - SD: 0...95 % r. H. (without dew formation
< 95 % r. H., non-precipitating air
AFF ⁄ AFTF, AFF - SD ⁄ AFTF - SD:
AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25: typically ± 1.8 % (10...90 % r. H.) at +25 °C, otherwise ± 2.0 %
0 - 10 V for U variant; 4...20 mA for I variant
–35...+35 °C; –35...+75 °C; 0...+50 °C; 0...+80 °C
AFF ⁄ AFTF, AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25:
storage –35...+85 °C; operation – 30...+80 °C, non-precipitating
AFF - SD ⁄ AFTF - SD:
storage –35...+85 °C; operation – 30...+70 °C, non-precipitating
AFF ⁄ AFTF:
AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25: typically ± 0.2 K at +25 °C
AFF - SD ⁄ AFTF - SD:
0 - 10 V for U variant; 4...20 mA for I variant;
AFTF - U xx (passive temperature sensor) see table
2-, 3-, or 4-wire connection (see connecting diagram),
0.14 - 1.5 mm², via terminal screws
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)
plastic, UV-resistant, 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!
AFF ⁄ AFTF, AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25:
126 x 90 x 50 mm (Tyr 2)
AFF - SD ⁄ AFTF - SD:
72 x 64 x 37,8 mm (Tyr 1 without Display)
72 x 64 x 43,3 mm (Tyr 1 with display)
stainless steel V2A (1.4301), Ø 16 mm
AFF ⁄ AFTF, AFF - SD ⁄ AFTF - SD:
AFF - 20 ⁄ AFTF - 20:
AFF - 25 ⁄ AFTF - 25:
AFF ⁄ AFTF, AFF - 20 ⁄ AFTF - 20, AFF - SD ⁄ AFTF - SD:
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
AFF - 25 ⁄ AFTF - 25:
pluggable measuring head (probe), stainless steel V2A (1.4301),
with metal sinter filter, Ø 16 mm, L = 88.5 mm, exchangeable
by screws
± 1 % per year
III (according to EN 60 730)
AFF ⁄ AFTF, AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25 (Tyr 2):
IP 65 (according to EN 60 529)
AFF -SD ⁄ AFTF - SD (Tyr 1):
IP 65 (according to EN 60 529) Housing tested, TÜV SÜD, Report No 713139052 (Tyr 1)
CE conformity, according to EMC directive 2014 ⁄ 30 ⁄ EU, according to EN 61326-1, according to EN 61326-2-3
display with illumination, for displaying ACTUAL temperature and ⁄ or ACTUAL humidity
AFF ⁄ AFTF, AFF - 20 ⁄ AFTF - 20, AFF - 25 ⁄ AFTF - 25 (Tyr 2): three-line, cutout 70 x 40 mm (W x H),
AFF -SD ⁄ AFTF - SD (Tyr 1): two-line, cutout approx. 36 x15 mm (W x H)
® AFF ⁄ AFTF (± 2,0 %), AFF - SD ⁄ AFTF - SD (± 2,0 % ) and
typically ± 2.0 % (20...80 % r. H.) at +25 °C, otherwise ± 3.0 %
typically ± 0.4 K at +25 °C
typically ± 0.6 K at +25 °C
NL = 55 mm
NL = 137 mm
NL = 88.5 mm
10
Rev. 2021 - V27
SD = Rev. 2021 - V25