S+S Regeltechnik HYGRASGARD KFF Series Operating Instructions, Mounting & Installation page 10

G
®
HYGRASGARD
Calibratable duct humidity- ⁄ temperature sensor HYGRASGARD
housing made from impact-resistant plastic with snap-on lid, with cable gland (optional M12 connector according to DIN EN 61076-2-101).
Calibratable duct humidity- ⁄ temperature sensor HYGRASGARD
(optional 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 the temperature of the air and converts the measurands into a standard signal of 0 - 10 V or 4...20 mA. It
has four switchable temperature ranges and is applied in non-aggressive dust-free atmospheres in refrigeration, air conditioning, ventilation and
clean room technology. 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:
Permissible air humidity:
Deviation, humidity:
Output, humidity:
TEMPERATURE
Measuring range, temperature: multi-range switching with 4 switchable measuring ranges (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:
KFF ⁄ KFTF ⁄ KFF - SD ⁄ KFTF - SD (± 2,0 %), KFF - 20 ⁄ KFTF - 20 (± 1,8 %)
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
Ra (ohm) = (Ub -14 V) ⁄ 0.02 A for I variant, see load resistance diagram
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.
< 95 % r. H., non-precipitating air
KFF ⁄ KFTF ⁄ KFF - SD ⁄ KFTF - SD:
typically ± 2.0 % (20...80 % r. H.) at +25 °C, otherwise ± 3.0 %
KFF - 20 ⁄ KFTF - 20:
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
storage –35...+85 °C; operation – 30...+75 °C, non-precipitating
typically ± 0.2 K at +25 °C
0 -10 V for U variant; 4...20 mA for I variant;
KFTF - 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!
KFF - xx ⁄ KFTF - xx (without display):
KFF ⁄ KFTF (with display):
KFF - 20 ⁄ KFTF - 20 (with display):
PLEUROFORM TM
, material polyamide (PA6), with torsion protection
Ø 20 mm, NL = 235 mm, v
(on request, optional stainless steel V2A (1.4301), Ø 16 mm)
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
by mounting flange, plastic (included in the scope of delivery)
± 1 % per year
III (according to EN 60 730)
KFF - SD ⁄ KFTF - SD
KFF - xx ⁄ KFTF - xx
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
KFF ⁄ KFTF (Tyr 1): two-line, cutout approx. 36 x15 mm (W x H)
KFF - 20 ⁄ KFTF - 20 (Tyr 2): three-line, cutout approx. 70 x 40 mm (W x H)
® KFF - SD ⁄ KFTF - SD (± 2,0 %), with plastic sinter filter (optional metal sinter filter),
®
KFF ⁄ KFTF (± 2,0 %) or KFF - 20 ⁄ KFTF - 20 (± 1,8 %), with plastic sinter filter
72 x 64 x 37.8 mm (Tyr 1/01)
72 x 64 x 43.3 mm (Tyr 1)
26 x 90 x 50 mm (Tyr 2)
= 30 m/s (air)
max
IP 54 (according to EN 60 529) Housing tested,
TÜV SÜD, Report No. 713160960A (Tyr 01)
IP 65 (according to EN 60 529) Housing tested,
TÜV SÜD, Report No. 713139052 (Tyr 1)
10
Rev. 2021 - V27