Technical Data - S+S Regeltechnik HYGRASREG KW Mode D'emploi

G
HYGRASREG ® KW
The condensation control switch HYGRASREG
on cooling or coldwater piping, or on cooled surfaces. It reliably detects formation of
condensation by means of its humidity and temperature sensor (no conductivity
measurement) and, thanks to its measuring method, pro-dynamic cross convection,
yields an exact measurement result. This condensation sensor is designed to prevent
condensate formation. Dew point temperature is that temperature at which air
reaches the state of saturation and water starts to precipitate. HYGRASREG
can be operated as mon itor on cooling ceilings or pipes so that the switching
output is activated when dew is building up on the cooling ceilings of the object to be
monitored and e.g. a heating system is started, or other actuators are initiated.

TECHNICAL DATA:

Power supply: ........................ 24 V AC (± 20 %)
Switching threshold: ................ ca. 93 % r. H.
Power consumption: ................ < 1.1 VA ⁄ 24 V DC
Output signal: ........................ potential-free changeover contact (24 V)
Process connection: ................ endless metal strap with metal tightener,
Electrical connection: .............. 0.14 - 1.5 mm², via terminal screws
Enclosure: ............................. plastic, material polyamide,
Enclosure dimensions: ............. 72 x 64 x 37.8 mm (Thor III)
Cable gland: ........................... M 16 x 1.5 ; including strain relief, exchangeable,
Mounting: .............................. Mounting position shall be chosen so that
Protection class: .................... III (according to EN 60 730)
Protection type: ..................... IP 65 (according to EN 60 529)
Standards: ............................ CE conformity, electromagnetic compatibility
FUNCTION: ............................. The relay output is activated (contact 13 -11 closed)
Typ ⁄ WG1 Measuring Range
Designation Humidity
KW
K W-W R O H R ca. 93 % r. H.
K W-W WA N D ca. 93 % r. H.
KW
K W-W E X T E R N ca. 93 % r. H.
®
KW is installed on cooling ceilings,
15 ... 36 V DC (± 10 %)
< 2.2 VA ⁄ 24 V AC
300 mm, for pipes up to 3 " diameter
(included in the scope of delivery)
30 % glass-globe-reinforced,
with quick-locking screws
(slotted ⁄ Phillips head combination),
colour pure white (similar RAL 9010)
max. inner diameter 10.4 mm
no condensate can infiltrate into the sensor system
in the event of occurring condensation.
Observe mounting diagram!
KW - Pipe including strap
for installation directly on pipes
KW - Wall without strap
for direct installation
on flat surfaces (e.g. walls, ceilings)
KW - external with detached sensor head
(cable length 1.5 m) for mounting on pipes
according to EN 61 326 + A1 + A2,
EMC directive 2004 ⁄ 108 ⁄ EC
when moisture is falling below dew point threshold
and it opens (contact 12 -11 closed) in the event of
fault (network failure, condensation).
Short LED pulses = relay active
→ below switchpoint
Long LED pulses = relay inactive
→ above switchpoint
Output
Humidity
Changeover contact
Changeover contact
Changeover contact
Schematic diagram
Short LED pulses =
relay active =>
® below switchpoint
KW
Long LED pulses =
relay inactive =>
above switchpoint
Connecting diagram
1 UB+ supply voltage 24V AC/DC
2 free
3 GND
13 Normally
open contact
11
Breaker
12
Mounting
for mounting directly on pipes
for mounting directly on walls
for mounting on pipes
Switchpoint
ca. 93% r.H.
LED
1 2 3 13 11 12
changeover
(24 V)
Item No.
Sensor internal
1 20 2- 1 02 5- 0 00 1- 02 0
12 02 - 10 25 -0 00 1 -0 10
Sensor external
1 20 2- 1 02 5- 0 00 1- 04 0
KW - W
KW - W