Technical Data - S+S Regeltechnik HYGRASREG KHT-30 Notice D'instruction

G
®
HYGRASREG KHT - 30
Electronic duct hygrostat and/or duct thermostat HYGRASREG
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 ventilation and air conditioning ducts, 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 KHT-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:
Enclosure:
Enclosure dimensions:
Cable gland:
Protective tube:
Protection class:
Protection type:
Electrical connection:
Standards:
Display:
FUNCTION
Humidifying/heating:
Dehumidifying/cooling:
®
HYGRASREG KHT - 30 – Duct hygrostat and humidity and temperature sensor (± 2,0 %), Deluxe
Type ⁄ WG02 Setting Range
Humidity
KHT - 30 - I
K H T- 3 0 W- I T Y R 2 5...95 % r. H.
KHT - 30 - U
K H T- 3 0 W- U T Y R 2 5...95 % r. H.
® KHT-30 with a continuous and two switching outputs, adjustable switching thresholds and
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 - 10V for U variant or 4...20mA for I variant)
typically ± 2.0 % (20...80 % r. H.) at +25 °C, otherwise ± 3.0 %
± 0.2 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),,enclosure cover for display is transparent!
126 x 90 x 50 mm (Tyr 2)
M 16 x 1.5; including strain relief, exchangeable, max. inner diameter 10.4 mm
PLEUROFORM TM , material polyamide (PA6), with torsion protection, Ø 20 mm, NL = 235 mm, v
(optional available on request stainless steel, Ø 16 mm)
III (according to EN 60 730)
IP 65 (according to EN 60 529) enclosure only!
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
Temperature
–35...+75 °C
–35...+35 °C
0...+50 °C
0...+80 °C
–35...+75 °C
–35...+35 °C
0...+50 °C
0...+80 °C
Output Steps
2 x changeover two-step
contact,
2x 4...20 mA
2 x changeover two-step
contact,
2x 0 -10 V
Rev. 2018 - V23 GB
= 30 m/s (air)
max
Display Item No.
I - variant
■ 1202-8127-2421-000
U - variant
■ 1202-8127-1421-000