S+S Regeltechnik HYGRASREG AHT-30 Notice D'instruction page 6

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®
HYGRASREG AHT - 30
Electronic on-wall hygrostat and/or on-wall thermostat HYGRASREG
thresholds and display for indicating ACTUAL humidity and/or ACTUAL temperature (accuracy class ± 2.0 % r.H.). The setpoints can be allocated to the
relative humidity and/or to the temperature. It is suitable for regulating and monitoring relative humidity (humidifying and dehumidifying) and/or the
temperature (heating and cooling), e.g. in laboratories, production facilities, climatic test cabinets, indoor swimming pools, greenhouses, etc., to control
humidifying and dehumidifying equipment or heating system control. The measuring transducers are designed for exact humidity/temperature measurement.
The AHT-30 uses a digital, long-term stable sensor as a measuring element. It is used in dust-free, unpolluted, non-aggressive air.
TECHNICAL DATA
Power supply:
Power consumption:
Sensor:
Sensor protection:
Setting range:
Operating difference:
Output:
Deviation, humidity:
Deviation, temperature:
Ambient temperature:
Long-term stability:
Housing:
Housing dimensions:
Cable connection:
Protective tube:
Protection class:
Protection type:
Electrical connection:
Standards:
Display:
FUNCTION
Humidifying/heating:
Dehumidifying/cooling:
HYGRASREG ® AHT - 30
Type ⁄ WG02 Setting Range
Humidity
AHT - 30 - I
A H T- 3 0 W- I T Y R 2
5...95 % r. H.
AHT - 30 - U
A H T- 3 0 W- U T Y R 2 5...95 % r. H.
Optional: Cable connection with M12 connector according to DIN EN 61076-2-101
24 V AC ⁄ DC (± 20 %)
< 1,5 VA ⁄ 24 V DC , < 3,5 VA ⁄ 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)
5...95 % r.H. (humidity)
Multi-range switching with 4 switchable measuring ranges (see table)
–35...+35 °C; –35...+75 °C; 0...+50 °C; 0...+80 °C (temperature)
(Switch steps 1 and 2 are separately adjustable)
Mode 1: both switch steps are freely adjustable (rel. humidity)
Mode 2: 5 % between both switch steps (rel. humidity)
Mode 3: both switch steps freely adjustable (temperature)
Mode 4: switch step 1 (temperature), switch step 2 (rel. humidity)
(adjustable via DiP switches)
potential-free changeover contacts (2 x changeover contact 24 V, 1A ohmic load, separately adjustable,
2x 0 - 10 V for U variant or 4...20 mA for I variant)
typically ± 2.0 % (20...80 % r. H.) at +25 °C, otherwise ± 3.0 %
typically ± 0.4 K at +25 °C
storage –35...+85 °C;
operation – 30...+75 °C, non-precipitating
± 1 % per year
plastic, UV-stabilised, 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!
126 x 90 x 50 mm (Tyr 2)
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)
stainless steel V2A (1.4301), Ø 16 mm, NL = 55 mm (see dimensional drawing)
III (according to EN 60 730)
IP 65 (according to EN 60 529)
2
0.14 - 1.5 mm , via terminal screws
CE conformity, EMC directive 2014 ⁄ 30 ⁄ EU
three-line display with illumination, cutout approx. 70 x 40 mm (W x H),
for displaying ACTUAL humidity and/or ACTUAL temperature or for setpoint adjustment
1st step: wire contacts 11 - 12. If actual humidity falls more than 3 % r.H. / 1 K (hysteresis)
below switching threshold S1, the changeover contact switches to 11 - 12.
2nd step: wire contacts 21 - 22. If actual humidity falls more than 3 % r.H. / 1 K (hysteresis)
below switching threshold S2, the changeover contact switches to 21 - 22.
Terminal 2: output relative humidity / terminal 3: output temperature
1st step: wire contacts 11 - 13. When actual humidity exceeds switching threshold S1,
the changeover contact switches to 11 - 13.
2nd step: wire contacts 21 - 23. When actual humidity exceeds switching threshold S 2,
the changeover contact switches to 21 - 23.
Terminal 2: output relative humidity / terminal 3: output temperature
On-wall hygrostat and humidity and temperature sensor (± 2.0 %), Deluxe
Temperature
–35...+75 °C
–35...+35 °C
0...+50 °C
0...+80 °C
(4 x as above)
® AHT-30 with a continuous and two switching outputs, adjustable switching
Output Steps
2 x changeover two-step
contact,
2x 4...20 mA
2 x changeover two-step
contact,
2x 0 -10 V
Display Item No.
I - variant
1202- 7127-2421- 000
■
U - variant
■ 1202-7127- 1421- 000
on request
Rev. 2020 - V25