– This device may only be used in pollutant-free 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.
– The CO
2
sensor is shock-sensitive. Due to the mechanism’s design, the measuring result may vary if shaken.
– 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.
– Extremely high concentrations of VOCs, aggressive cleaning agents or silicone-containing vapours can destroy the sensor element or
reduce its service life drastically.
– 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.
Subject to errors and technical changes. All statements and data herein represent our best knowledge at 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.
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.
– Please check delivery immediately on receipt for accuracy and damage. If damaged, please notify the carrier immediately. In case of
delayed notification, any possible claim may be void.
– 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.
– When storing for a prolonged time, the following steps are to be taken to avoid damaging influences: Protection by dry, air-dustproof
packing (plastic bags with drying agent and moisture indicators). The storage place must be waterproof, vibration-free and free of
excessive temperature variations. Damages due to improper transportation, storage or commissioning must be verified and are not
liable for warranty.
– 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 housings 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.
CO2 Monitor
Installation and operating instructions
9
