IE-SNC-Tx6xx-07
5
calculating the output value. This fact adds a noise of typ. ±30ppm which has to be
considered in terms of accuracy. Of principle measurement is the measured value of CO
2
concentration depends on the value of air pressure - altitude at the installation site. For this
reason, it is suitable for accurate measurement to set the altitude of the installation site.
After power up of the device starts internal test. During this time (about 20s) LCD display
shows (----) instead of CO
2
concentration value. Web pages show n/a.
General safety rules
The following summary is used to reduce the risk of injury or damage the device.
To prevent injury, please follow instructions.
The device can be services only by a qualified person. The device contains no
serviceable parts inside.
Don
’t use the device, if it doesn’
t work correctly. If you think, that the device is
not working correctly, let check it by qualified service person.
It
’
s forbidden to use the device without the cover. Inside the device can be a dangerous
voltage and may be risk of electric shock.
Use only the appropriate power supply adapter according to manufacturer specifications and
approved according to relevant standards. Make sure, that the adapter does not have
damaged cables or covers.
Connect the device only to network parts approved according to relevant standards. Where
power over Ethernet is used, the network infrastructure must be compatible with IEEE
802.3af standard.
Connect and disconnect the device properly. Don
’
t connect or disconnect Ethernet cable or
probes, if the device is powered.
The device may be installed only in prescribed areas. Never expose the device to higher or
lower temperatures than is allowed. The device has not improved resistance to moisture.
Protect it from dripping or splashing water and do not use at areas with condensation.
Devices are not designed for locations with chemically aggressive environment. Temperature
and humidity sensors must not be exposed to direct contact with water or other liquids. It is
not allowed to remove the sensor cover to avoid any mechanical damage of the sensors.
Never plug-in higher power supply voltage than is allowed.
Don
’
t use device in potentially explosive environments.
Don
’
t stress the device mechanically.
