S+S Regeltechnik HYGRASGARD DFF Notice D'instruction page 6

G
®
HYGRASGARD
The calibratable humidity and temperature sensor HYGRASGARD
the measurands into a standard signal of 0 - 10 V or 4...20 mA, and is available with ⁄ without an optional display.
It is equipped with four switchable temperature ranges. Relative humidity (in % r.H.) is the quotient of water vapour partial pressure divided by the
saturation vapour pressure at the respective gas temperature. The measuring transducers are designed for exact detection of temperature and
humidity. A digital, long-term stable sensor is used as a measuring element for humidity and temperature measurement. The sensor is factory-
calibrated; an environmental precision adjustment by an expert is possible.
The ceiling-installed sensor is used in non-aggressive, dust-free environments and is used for installation in suspended ceilings in corridors, offices,
as well as in residential and commercial buildings. The connecting head is pluggable for quick, easy mounting. The measuring transducer is
accommodated in a separate housing.
TECHNICAL DATA
Power supply:
Working resistance:
Load resistance:
Power consumption:
Sensors:
HUMIDIT Y
Measuring range, humidity:
Operating range, humidity:
Deviation in humidity:
Output, humidity:
TEMPERATURE
Measuring range, temperature: multi-range switching with 4 switchable measuring ranges (see table)
Deviation temperature:
Output, temperature:
Ambient temperature:
Long-term stability:
Housing:
Housing dimensions:
Cable connection:
Electrical connection:
Connecting cable:
Connecting head:
Mounting (sensor):
Protection class:
Protection type:
Standards:
Optional:
DFF ⁄ DFTF
24 V AC (± 20 %) and 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
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. (output corresponding to 0 - 10 V or 4...20 mA)
0..95 % r. H. (without formation of dew)
typically ± 2.0 % (20...80 % r. H.) at +25 °C, otherwise ± 3.0 %
0 - 10 V for U variant
4...20 mA for I variant, 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)
typically ± 0.2 K at +25 °C
0 - 10 V or 4...20 mA
storage –5...+60 °C; operation –5...+60 °C
± 1 % per year
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!
72 x 64 x 37.8 mm (Tyr 1 without display)
72 x 64 x 43.3 mm (Tyr 1 with display)
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 on request)
2-, 3- or 4-wire (see connecting diagram),
0.14 - 1.5 mm², via terminal screws
PVC, LiY Y, 4 x 0.14 mm², cable length (K L) = approx. 2 m
made of plastic, material polycarbonate (PC), colour white, pluggable, Ø = approx. 35 mm, H = approx. 29 mm,
with metal sinter filter made of stainless steel V4A (1.4404)
in the suspended ceiling, ceiling cut-out Ø = 30 mm, cover Ø = < 35 mm
III (according to EN 60 730)
IP 67 (according EN 60 529) Housing tested TÜV SÜD, Report No. 713139052
IP 30 (according EN 60 529) Sensor in the built-in state
CE conformity according to EMC Directive 2014 ⁄ 30 ⁄ EU, according to EN 61326-1, according to EN 61326-2-3
two-line display with illumination, cutout approx. 36 x 15 mm (W x H),
to display the ACTUAL temperature and ⁄ or ACTUAL humidity
® DFF ⁄ DFTF measures the relative humidity and temperature of air. It converts
Rev. 2021 - V13