Chapter - 4
Setting at the instrument
User can power up the unit either by USB input or by using connection cable at 24V DC input. After power up
sensor starts an initializing routine for some seconds. After this the object temperature is shown in the display. User
has to remove the screw (mark USB in figure) to connect the unit with PC via USB cable.
4.1 Operation
The programming keys FUNC, UP and DOWN enable the user to set the device on-site. Normally, LCD shows
temperature or error. To view different parameter FUNC key is pressed repeatedly. To change values of parameters UP
& DOWN keys are used. After changing values in any parameter by UP & DOWN key finally FUNC key should be
pressed to save that value in device. If FUNC key is not pressed after changing parameter value than device will
automatically take the old value & device will start showing temperature. If any key is not pressed for more than 5 sec.
than device will automatically shows the temperature.
4.2 Adjustable parameters
Emissivity : It is the relationship between the emissions of a real object and the emission of a black body
radiation source at the same temperature. For a correct measurement it is necessary to
adjust emissivity. Emissivity depends on the surface condition of the material, the spectral
range of the pyrometer and the measuring temperature. Different material has different
emissivity ranging from 0.1 to 1.0.user can change emissivity by given keypad on the
instrument.
Set point : Instrument is equipped with a relay contact controlled by the measuring signal. The turn on
temperature of relay is adjusted within the measuring range. The relay contact is “OPEN”
below the adjusted value, it is “CLOSE” above it.
Hysteresis (Hyst.) : The relay contact close when temperature exceeds the set point. It opens only if the
temperature falls below a value which consists of set point and the adjusted hysteresis. It can
be adjusted from 2° to 20°C.
4
24V DC input, analog
& digital output cable
USB output
Sensor cable maximum
length 15 mtr.
Function key to select
different functions
Function keys for
parameter setting
LCD display for measuring
temperature and parameterization
Wall Mounting holes
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