S+S Regeltechnik HYGRASREG KH-40 Notice D'instruction page 8

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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 under any circumstances must be avoided as this would result in considerable mismeasurements.
– In case of pollution, we recommend cleaning and recalibration in the factory.
– Under no circumstances should the sensor come into contact with chemicals or other cleaning agents.
– The device operating range covers 10...95 % r. H. Beyond that range, mismeasurements or increased deviations may occur.
– When several sensors 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 currentless conditions. To avoid damages and errors 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 must ensure compliance with the relevant building and safety regulations
and must prevent hazards 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 by authorised specialists only.
– 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 the context of technical progress and continuous
improvement of our products.
– If any modifications are 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 neither be used for monitoring applications, which serve the purpose of protecting persons against hazards or injury,
nor as an EMERGENCY STOP switch for systems or machinery, or for other similar safety-relevant purposes.
– Dimensions of enclosures or enclosure 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.
These instructions must be read before installation and putting into operation and all instructions contained therein must be observed!
SUPPLY VOLTAGE:
For operating voltage reverse polarity protection, a one-way rectifier or
reverse polarity protection diode is integrated in this device variant.
If this device is operated with a 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!
If 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!
Connecting scheme
Power supply
AC 24V~ 0V
DC 15-36V = GND
Connecting scheme
Power supply
AC 24V~ 0V
DC 15-36V = GND
Individual operation
Circuitry
Parallel operation
Circuitry Circuitry