S+S REGELTECHNIK HYGRASGARD KFF Bedienungs- Und Montageanleitung Seite 10

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HYGRASGARD
Quality product for HVAC sector, accuracy 3 % r.H.
The calibrateable duct humidity ⁄ outdoor humidity ⁄ temperature sensors HYGRASGARD
relative humidity and ⁄ or temperature of air. They convert the measurands into standard signals of 0 -10 V or 4...20 mA and are optional available
with or without display. Terminal box enclosure made of impact-resistant plastic with enclosure cover with quick-locking screws.
They have four switchable temperature ranges and are applied in non-aggressive dust-free ambiences 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
Power consumption: ................ < 1.1 VA ⁄ 24 V DC ; < 2.2 VA ⁄ 24 V AC
Sensors: ............................... digital humidity sensor with integrated temperature sensor,
Sensor protection: .................. membrane filter, plastic, exchangeable
HUMIDITY:
Measuring range, humidity: ....... 0 ...100 % r. H.
Operating range, humidity: ....... 0 ... 95 % r. H. (without formation of dew)
Deviation, humidity: ................. ± 3 % r. H. (20...80 %) at +20 °C, otherwise ± 5 % r. H.
Output, humidity: .................... 0 -10 V at U variant
TEMPERATURE:
Measuring range,
temperature: ......................... multi-range switching (see table)
Operating range, temperature: ....... - 35 ...+80 °C
Deviation, temperature: ........... ± 0.8 K at 20 °C
Output, temperature: .............. 0 -10 V or 4 ... 20 mA or Ohm value
Ambient temperature: ............. storage - 25 ...+ 50 °C, operation - 5 ...+ 55 °C
Electrical connection: .............. 2-, 3-, or 4-wire connection (see connecting diagram),
Enclosure: ............................. plastic, material polyamide, 30 % glass-globe-reinforced,
Cable gland: ........................... M 16 x 1.5 , including strain relief, exchangeable, max. inner diameter 10.4 mm
Protective tube: ..................... stainless steel, Ø 16 mm
Process connection: ................ KFF ⁄ KFTF :
Long-term stability:................. ± 1 % per year
Protection class: .................... III (according to EN 60 730)
Protection type: ..................... IP 65 (according to EN 60 529)
Standards: ............................ CE conformity, according to EMC directive 2004 ⁄ 108 ⁄ EC,
Optional: ............................... two-line display with illumination, cutout ca. 36 x15 mm (W x H),
KFF ⁄ KFTF, AFF ⁄ AFTF, AFF - LC ⁄ AFTF - LC
15 ... 36 V DC (± 10 %) for I variant (depending on working resistance)
dew-proof, small hysteresis, high long-term stability
(output corresponding to 0 -10 V or 4 ... 20 mA)
4 ... 20 mA at I variant, working resistance < 800 Ω, see load resistance diagram
- 35 ...+35 °C; - 35 ...+75 °C; 0 ...+50 °C; 0 ...+80 °C
(output corresponding to 0 -10 V or 4 ... 20 mA)
0.14 - 1.5 mm², via terminal screws on circuit board
with quick-locking screws (slotted ⁄ Phillips head combination),
colour pure white (similar RAL 9010)
KFF ⁄ KFTF, AFF - LC ⁄ AFTF - LC:
enclosure cover for display is transparent !
72 x 64 x 37.8 mm (Thor III without display)
72 x 64 x 43.3 mm (Thor III with display)
AFF ⁄ AFTF:
108 x 70 x 73.5 mm (Thor II)
KFF ⁄ KFTF : nominal length NL = 230 mm (optional 400 mm, 500 mm)
AFF ⁄ AFTF, AFF - LC ⁄ AFTF - LC : NL = 45 mm
by mounting flange, plastic (included in the scope of delivery, galvanised steel optional)
AFF ⁄ AFTF, AFF - LC ⁄ AFTF - LC :
by screws
according to EN 61326-1: 2006, according to EN 61326-2-3: 2006
for displaying ACTUAL temperature and ⁄ or ACTUAL humidity
®
KFF ⁄ KFTF, AFF ⁄ AFTF, AFF - LC ⁄ AFTF - LC measure the
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