1. General description
The regulators are designed for online measurement of temperature (°C or °F), relative humidity
and carbon dioxide concentration of air without aggressive ingredients. Measured temperature and
relative humidity are recomputed to following humidity expression: dew point temperature, absolute
humidity, specific humidity, mixing ratio and specific enthalpy.
The regulators are designed to be operated in a chemically non-aggressive environment.
Type
Temperature
Humidity CO
2
Computed value
AR006709
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AR006708
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AR006710
The device is equipped with two relay outputs for alarming or controlling of external devices. It is
possible to assign any input value to each relay, to set comparing limit, delay, hysteresis, acoustic
alarm or change its status by far control with using of Modbus communication protocol.The device
communicates via link RS485.
Supported communication protocols are Modbus RTU and protocol compatible with standard
Advantech-ADAM. Devices are preset from manufacturer to Modbus RTU communication protocol.
If you would like to use different communication protocol then Modbus RTU, it is necessary preset
them – see latter. Measured and computed values are displayed on dual line LCD. It is also possible
to display both readings with cyclic overwriting in 4 seconds interval. Display can be also switched
OFF totally. On the left LCD side there are placed three LEDs for CO
2
zone level indication.
2. Regulator mounting and connection
Regulators are designed for wall mounting. Device must be mounted on the plane surface to
prevent its deformation. Mounting holes and connection terminals are accessible after demounting of
four screws in the corners of the box and removing the lid. There is recommended to use screws with
half round head with cross-recessed screw ST 3.9 (DIN 7981). External probe for measuring the
concentration of CO2 unpack and connect to the
device.
Lace the lead-in cable with outer diameter
of 3 to 6.5 mm through the glands at the case
wall and connect them according schematic
below. Terminals are self-clamping and can be
opened by a suitable screwdriver. For the
opening, insert the screwdriver to smaller
terminal hole and lever by him. Do not forget to
tighten glands and case lid with inserted packing
after cables connecting. Insert attached plug into
unused cable glands too. Do not connect the
regulator under voltage.
It is not recommended to use the device
AR006710
and external RH+T probe
regulator for long time under condensation
conditions. It could be the cause of water steam
condensation inside the sensor’s cover into
water
4
Содержание AR006708
Страница 6: ...6 AR006709 ...
Страница 7: ...8 AR006708 4 Typical application wiring connection of terminals ...
Страница 25: ...26 10 1 6 Relative humidity and temperature restriction ...