S S REGELTECHNIK HYGRASREG TW Dew Point Control Switch TW Instruction Manual
- June 12, 2024
- S S REGELTECHNIK
Table of Contents
S S REGELTECHNIK HYGRASREG TW Dew Point Control Switch TW
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 the 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
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|
1202-1015-0001-000
T W- W LCD| 75…100 % r. H.| Changeover contact| for mounting directly on
pipes| ■ 1202-1015-1201-020
T W- U| 0…100 % r. H.| 0 -10 V| for mounting directly on pipes|
1201-1011-1001-020
T W- U / W| 0…100 % r. H.| 0 -10 V + Changeover contact| for mounting directly
on pipes| 1202-1012-1001-020
T W- U / W LCD| 0…100 % r. H.| 0 -10 V + Changeover contact| for mounting
directly on pipes| ■ 1202-1012-1201-020
TW – external| | | Sensor external| IP 65
T W-W- ex tern| 75…100 % r. H.| Changeover contact| for mounting on pipes|
1202-1015-0021-030
T W-W- ex tern LCD| 75…100 % r. H.| Changeover contact| for mounting on
pipes| ■ 1202-1015-0221-030
Optional:| Cable connection with M12 connector according to| DIN EN
61076-2-101| on request
Installation and Commissioning
Mounting diagram Housing
READOUT IN THE DISPLAY
By default, the first line of the display shows the relative humidity. The second line shows the information about the switching status of the relay (as a circuit) on the left, and the respective switching value in % r.H. on the right (switchpoint adjustable by a potentiometer, factory setting 75 % r.H.).
General notes
- This device must only be used in non-precipitating air without above-atmospheric or below-atmospheric pressure at the sensor element.
- On outdoor and duct sensors, the sinter filter of the senor element protects the humidity sensor against potential dust exposure. In case of pollution ⁄ contamination, this filter should be cleaned on a regular basis.
- Dust and pollution falsify measurement results and are to be avoided. Slight pollution and dust sediments can be removed by using compressed air.
- Touching the humidity element is under any circumstances to be avoided, as that would result in considerable mismeasurements.
- In case of pollution, we recommend cleaning and recalibration in the factory.
- In any case, the sensor must not get in contact with chemicals or other cleaning agents.
- The relative humidity of 0…100 % is indicated by an output signal of 0 -10 V or 4 … 20 mA.
- The device operating range covers 10.0 … 99.9 % r. H. Beyond that range, mismeasurements or increased deviations may occur.
- When several sensors (0 -10 V) are connected to one voltage supply of 24 V AC, correct polarity must be regarded as otherwise the alternating voltage source may be short-circuited.
- The voltage outputs are short-circuit proof. Applying overvoltage or voltage supply to the voltage output will destroy the device.
- If this device is operated beyond the specified range, all warranty claims are forfeited.
Our “General Terms and Conditions for Business“ together with the “General
Conditions for the Supply of Products and Services of the Electrical and
Electronics Industry“ (ZVEI conditions) including supplementary clause
“Extended Retention of Title“ apply as the exclusive terms and conditions.
In addition, the following points are to be observed:
- These instructions must be read before installation and putting in operation and all notes provided therein are to be regarded!
- Devices must only be connected to safety extra-low voltage and under dead-voltage condition. To avoid damages and errors at the device (e.g. by voltage induction) shielded cables are to be used, laying parallel with current-carrying lines is to be avoided, and EMC directives are to be observed.
- This device shall only be used for its intended purpose. Respective safety regulations issued by the VDE, the states, their control authorities, the TÜV and the local energy supply company must be observed. The purchaser has to adhere to the building and safety regulations and has to prevent perils of any kind.
- No warranties or liabilities will be assumed for defects and damages arising from improper use of this device.
- Consequential damages caused by a fault in this device are excluded from warranty or liability.
- These devices must be installed and commissioned by authorised specialists.
- The technical data and connecting conditions of the mounting and operating instructions delivered together with the device are exclusively valid. Deviations from the catalogue representation are not explicitly mentioned and are possible in terms of technical progress and continuous improvement of our products.
- In case of any modifications made by the user, all warranty claims are forfeited.
- This device must not be installed close to heat sources (e.g. radiators) or be exposed to their heat flow. Direct sun irradiation or heat irradiation by similar sources (powerful lamps, halogen spotlights) must absolutely be avoided.
- Operating this device close to other devices that do not comply with EMC directives may influence functionality.
- This device must not be used for monitoring applications, which serve the purpose of protecting persons against hazards or injury, or as an EMERGENCY STOP switch for systems or machinery, or for any other similar safety-relevant purposes.
- Dimensions of housing or housing accessories may show slight tolerances on the specifications provided in these instructions.
- Modifications of these records are not permitted.
- In case of a complaint, only complete devices returned in original packing will be accepted.
Notes on commissioning: This device was calibrated, adjusted and tested under standardised conditions. When operating under deviating conditions, we recommend performing an initial manual adjustment on-site during commissioning and subsequently at regular intervals.
Commissioning is mandatory and may only be performed by qualified personnel! These instructions must be read before installation and commissioning and all notes provided therein are to be regarded!
SUPPLY VOLTAGE
For operating voltage reverse polarity protection, a one-way rectifier or
reverse polarity protection diode is integrated in this device variant. This
internal one-way rectifier also allows operating 0 – 10 V devices on AC supply
voltage. The output signal is to be tapped by a measuring instrument. Output
voltage is measured against zero potential (O V) of the input voltage! When
this device is operated on DC supply voltage, the operating voltage input UB+
is to be used for 15…36 V DC supply and UB – or GND for ground wire! When
several devices are supplied by one 24 V AC voltage supply, it is to be
ensured that all ”positive“ operating voltage input terminals (+) of the field
devices are connected with each other and all ”negative“ operating voltage
input terminals (–) (= reference potential) are connected together (in-phase
connection of field devices). All outputs of field devices must be referenced
to the same potential! In case of reversed polarity at one field device, a
supply voltage short-circuit would be caused by that device. The consequential
short-circuit current flowing through this field device may cause damage to
it.
Therefore, pay attention to correct wiring!
Dimensional drawing
© Copyright by S+S Regeltechnik GmbH
Reprint in full or in parts requires permission from S+S Regeltechnik GmbH.
Subject to errors and technical changes. All statements and data herein
represent our best knowledge at the date of publication. They are only meant
to inform about our products and their application potential, but do not imply
any warranty as to certain product characteristics. Since the devices are used
under a wide range of different conditions and loads beyond our control, their
particular suitability must be verified by each customer and/or end user
themselves. Existing property rights must be observed. We warrant the
faultless quality of our products as stated in our General Terms and
Conditions.
Note when mounting: Sensor must remain unobstructed (min. distance 10 cm), ambient air may not be shielded off.
S+S REGELTECHNIK GMBH
THURN-UND-TAXIS-STR. 22
90411 NÜRNBERG ⁄ GERMANY
FON +49 (0) 911 ⁄ 5 19 47-0
mail@SplusS.de
www.SplusS.de
References
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