S+S Regeltechnik HYGRASGARD KAVTF Mode D'emploi page 6

G
®
HYGRASGARD
The universal humidity sensors HYGRASGARD
humidity measurement. The relative humidity and temperature of the ambient air are measured. From these measurands, the different characteristic
variables are internally calculated.
For device version x-U, two outputs of 0 - 10 V are available, for Version x- I two outputs of 4...20 mA. Here, the output variables for these outputs
can be defined using DIP switches. Selectable for output 1 are relative humidity [% r. H.], absolute humidity [g ⁄ m³], mixture ratio [g ⁄ kg], dew
point temperature [°C], or enthalpy [kJ ⁄ kg] (while neglecting the atmospheric air pressure). At output 2, four different measuring ranges for
ambient temperature [°C] are selectable. Ex-factory condition (default) for output 1 is relative humidity 0...100 % r. H., for output 2 temperature
measuring range 0...+50 °C. Due to the different configuration alternatives provided, numerous measurement and control tasks can be solved by
just one device. These devices are to be operated in pollutant-free non-precipitating air, with neither above-atmospheric nor below-atmospheric
pressure at the sensors. Application examples include medical technology, refrigeration, air conditioning, and clean room technology. These
sensors are appropriate for duct or wall mounting installation.
TECHNICAL DATA
Power supply:
Working resistance:
Load resistance:
Power consumption:
Sensors:
Sensor protection:
HUMIDIT Y
Measuring range, humidity:
Operating range, humidity:
Deviation, humidity:
Output 1, humidity:
TEMPERATURE
Measuring range, temperature:
Operating range, temperature:
Deviation, temperature:
Output 2, temperature:
Ambient temperature:
Electrical connection:
Housing:
Housing dimensions:
Cable connection:
Protective tube:
Process connection:
Protection class:
Protection type:
Standards:
Optional:
KAVTF ⁄ AAVTF
® KAVTF ⁄ AAVTF with 6 output sizes are used to determine diverse characteristic variables in
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
a b
R > 5 kOhm for U variant
L
< 1 W at 24 V DC; < 2 VA at 24 V AC
digital humidity sensor with integrated temperature sensor,
low hysteresis, high long-term stability
plastic sinter filter, Ø 16 mm, L = 35 mm, exchangeable
(optional metal sinter filter, Ø 16 mm, L = 32 mm)
multi-range switching with
8 switchable measuring ranges (see table)
0...100 % r. H. (default)
10...95 % r. H., without formation of dew
typically ± 2.0 % (20...80 % r. H.) at +25 °C, otherwise ± 3.0 %
Deviations of other outputs result from
deviations of humidity and temperature.
0 - 10 V for U variant (see table)
4...20 mA for I variant (see table)
multi-range switching with
4 switchable measuring ranges (see table)
0...+50 °C (default); –20...+80 °C; –35...+75 °C; –35...+35 °C
–35...+85 °C sensors
KAVTF: typically ± 0.2 K at +25 °C
AAVTF: typically ± 0.6 K at +25 °C
0 - 10 V for U variant (see table)
4...20 mA for I variant (see table)
storage –35...+85 °C;
operation –30...+70 °C, non-precipitating
4-wire connection for U variant
3-wire connection for I variant (Transmitter)
0.14 - 1.5 mm², via terminal screws
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 (on request)
KAVTF: PLEUROFORM
Ø 20 mm, NL = 235 mm, v
AAVTF: stainless steel V2A (1.4301), Ø 16 mm, nominal length NL = 55 mm
KAVTF: by mounting flange, plastic (included in the scope of delivery)
AAVTF: by screws
III (according to EN 60 730)
IP 65 (according to EN 60 529) in the built-in state, Housing tested, TÜV SÜD, Report No. 713139052 (Tyr 1)
CE conformity, electromagnetic compatibility according to EN 61 326, EMC directive 2014 ⁄ 30 ⁄ EU
two-line display with illumination, cutout approx. 36 x15 mm (W x H),
for displaying actual temperature and actual humidity, as well as the selectable output variables
TM
, material polyamide (PA6), with torsion protection
= 30 m/s (air) (on request, optional stainless steel V2A (1.4301), Ø 16 mm)
max
KAVTF Rev. 2021 - V28
AAVTF Rev. 2021 - V27