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G
®
HYGRASREG
TW
The dew point control switch HYGRASREG
detects formation of dew by means of its humidity and temperature sensor (no conductivity measurement) and thanks to its patented measuring
method, the pro-dynamic cross convection (Patent No. DE 10 2012 015 726.6), it yields an exact measurement result, with ⁄ without optional
display.
Dew point temperature is that temperature at which air reaches the state of saturation and water vapour starts to condensate. Facilitated by the
measuring range of 0...100 % r. H. of the TW-U and by the adjustable threshold value of 75...100 % r. H. of the TW-W, it is possible for example to
operate cooling ceilings so that the switching output of the dew point monitor, the DDC, is activated and thereby a heater or other control elements
are triggered and so formation of dew is avoided before dew builds up on pipes or cooling ceilings of the object to be monitored.
TECHNICAL DATA
Power supply:
Power consumption:
Measuring Range:
Sensors:
Sensor protection:
Output signal:
Process connection:
Electrical connection:
Enclosure:
Enclosure dimensions:
Cable gland:
Mounting:
Protection class:
Protection type:
Standards:
Optional:
HYGRASREG
®
TW - Pipe – Dew point control switches including strap (± 3 %), Premium
®
HYGRASREG
TW - external – Dew point control switches with detached sensor head (± 3 %), Premium
Type ⁄ WG01
TW - Pipe
T W-W R O H R
T W-W R O H R D I S P L AY
T W- U R O H R
T W- U / W R O H R
T W- U / W R O H R D I S P L AY
TW - external
T W-W E X T E R N
Extra charge:
®
TW is installed on cooling ceilings, on cooling or cold-water piping, or on cooled surfaces. It reliably
24 V AC (± 20 %); 15...36 V DC (± 10 %)
< 1.1 VA ⁄ 24 V DC ; < 2.2 VA ⁄ 24 V AC
0...100 % r. H., TW-U, continuous
75...100 % r. H., TW-W, adjustable,
generation of dew is detected, switching value can be adjusted via potentiometer
digital humidity sensor with integrated temperature sensor, small hysteresis, high long-term stability
membrane filter
0 -10 V or potential-free changeover contact (24 V)
endless metal strap with metal tightener, 300 mm, for pipes up to 3 " diameter (included in the scope of delivery)
0.14 - 1.5 mm², via terminal screws
plastic, 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!
72 x 64 x 37.8 mm (Tyr 1 without display)
72 x 64 x 43.3 mm (Tyr 1 with display)
M 16 x 1.5, including strain relief, exchangeable,
max. inner diameter 10.4 mm
TW - Pipe including strap for installation directly on pipes
TW - external with detached sensor head (cable length 1.5 m) for mounting on pipes
III (according to EN 60 730)
IP 65 (according to EN 60 529)
CE conformity,
electromagnetic compatibility according to EN 61 326,
EMC directive 2004 ⁄ 108 ⁄ EC
two-line display with illumination, cutout approx. 36 x15 mm (W x H),
for displaying actual humidity and the switching status of the relay
Measuring Range
Output
Humidity
Humidity
75...100 % r. H.
Changeover contact
75...100 % r. H.
Changeover contact
0...100 % r. H.
0 -10 V
0...100 % r. H.
0 -10 V +
Changeover contact
0...100 % r. H.
0 -10 V +
Changeover contact
75...100 % r. H.
Changeover contact
Two-line display with illumination
Mounting
Display
for mounting directly on pipes
for mounting directly on pipes
for mounting directly on pipes
for mounting directly on pipes
for mounting directly on pipes
for mounting on pipes
Rev. 2016 - V14 GB
Item No.
Sensor internal
1202-1015-0001-000
■
1202-1 015-1201-020
12 01-1011-1001-020
1202-1012-1001 -020
■
1202-1012-1201 -020
Sensor external
1202-1015-0021-030
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