G
HYGRASREG
®
TW
Rev. 2020 - V18
13 11 12
13 11 12
Patented quality product (pro-dynamic cross convection patent no. DE 10 2012 015 726.6)
The dew point control switch
HYGRASREG
®
TW
is installed on cooling ⁄ cold-water piping or on cooled surfaces. It reliably detects formation of dew
by means of its humidity and temperature sensor (no conductivity measurement) and, thanks to its patented measuring method,
pro-dynamic cross
convection
, yields an exact measurement result (with LED status display),
with ⁄ without display
. Dew point temperature is that temperature at
which air reaches the state of saturation and water vapour starts to condensate. Facilitated by the continuous measuring range from 0...100 % r.H.
of the
TW-U
and the adjustable switchpoint for the
TW-W
of 75...100 % r.H., it is possible to operate cooling ceilings, for example, so that the
switching output of the dew point control switch, the DDC, is activated and then triggers a heater or other control elements, thereby preventing the
formation of dew on pipes or cooling ceilings or on the property to be monitored.
TECHNICAL DATA
Power supply:
24 V AC (± 20 %) and 15...36 V DC
Power consumption:
< 1.1 VA ⁄ 24 V DC; < 2.2 VA ⁄ 24 V AC
Measuring Range:
formation of dew is detected at
0...100 % r.H. on the
TW-U
, continuous
75...100 % r.H. on the
TW-W
, switching
(switchpoint adjustable by potentiometer, factory setting 75 % r.H.)
Output:
0 -10 V or potential-free changeover contact (24 V), 1 A ohmic load
Sensors:
digital humidity sensor with integrated temperature sensor,
small hysteresis, high long-term stability
Sensor protection:
membrane filter
Medium:
clean air and non-aggressive, non-combustible gases
Housing:
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 is transparent!
Housing dimensions:
72 x 64 x 43.3 mm (Tyr 1)
Cable connection:
cable gland
, plastic (M 16 x 1.5;
with strain relief, exchangeable,
inner diameter 10.4 mm)
Electrical connection:
0.14 - 1.5 mm², via terminal screws
Process connection:
endless metal strap with metal tightener, 300 mm,
for pipes up to 3 " diameter (included in the scope of delivery)
Mounting:
TW
with strap for direct mounting on pipes
or for direct mounting on flat surfaces (e.g. walls, ceilings)
TW - external
with detached sensor head
(cable length KL = 1.5 m) for mounting on pipes
Protection class:
III (according to EN 60 730)
Protection type:
IP 65
(according to EN 60 529)
Housing tested, TÜV SÜD, Report No. 713139052 (Tyr 1)
Standards:
CE conformity, electromagnetic compatibility according to EN 61 326, EMC directive 2014 ⁄ 30 ⁄ EU
Optional:
two-line
display with illumination,
cutout approx. 36 x15 mm (W x H),
for displaying actual humidity and the switching status of the relay
FUNCTION
The relay output is triggered (contact 13 -11 closed)
if the
pre-set switchpoint
(factory setting 75 % r.H.)
is not reached and opens (contact 12 -11 closed) in the event of an error (power failure, condensation).
LED short pulses =
relay active → switchpoint not reached
ACTUAL humidity
< pre-set switchpoint (no condensation)
LED long pulses =
relay inactive → switchpoint exceeded
ACTUAL humidity
> pre-set switchpoint (condensation)
HYGRASREG
®
TW
Dew point control switches including strap (± 3 %), Deluxe
HYGRASREG
®
TW - external
Dew point control switches with detached sensor head (± 3 %), Deluxe
Type ⁄ WG01
Measuring Range
Humidity
Output
Humidity
Mounting Display Item No.
TW
Sensor internal
IP 65
T W-W
75...100 % r. H.
Changeover contact
for mounting directly on pipes
9202-1015-0001-000D1
T W-W DISP L AY
75...100 % r. H.
Changeover contact
for mounting directly on pipes
■
9202-1015-1201-020D1
T W-U
0...100 % r. H.
0 -10 V
for mounting directly on pipes
9201-1011-1001-020D1
T W-U / W
0...100 % r. H.
0 -10 V + Changeover contact for mounting directly on pipes
9202-1012-1001-020D1
T W-U / W DISP L AY
0...100 % r. H.
0 -10 V + Changeover contact for mounting directly on pipes
■
9202-1012-1201-020D1
TW - external
Sensor external
IP 65
T W-W E X T ERN
75...100 % r. H.
Changeover contact
for mounting on pipes
9202-1015-0021-030D1
T W-W E X T ERN DISP L AY 75...100 % r. H.
Changeover contact
for mounting on pipes
■
9202-1015-0221-030D1
Содержание HYGRASREG TW
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