• Setting Output Processing
The temperature range for the analogue output, the averaging period and the peak/
valley hold processing can be set by using the main program menu to select:
[Setup] → [Output Processing]
The temperatures corresponding to the lower and upper limits of the analogue output
can then be set as follows:
Model Lower Limit Upper Limit Minimum Span Maximum Span
U2-1 45°C 300°C 100°C 255°C
U2-2 100C 400°C 100°C 300°C
U2-3 250°C 1000°C 100°C 750°C
U2-4 450°C 2000°C 100°C 1550°C
The output type can be selected as either 0 mA to 20 mA or 4 mA to 20 mA.
To minimise the the effects of temperature fluctuations, noise etc on the output
signal, the averaging period can be set between 0 and 60 seconds.
If required, Hold Processing can be applied by setting hold mode to Peak Hold or
Valley Hold and setting a hold period between 0 and 1200 seconds.
• Setting Target Emissivity
To set an emissivity value for the Silver U2 sensor, use the main program menu to
select:
[Setup] →[Emissivity]
Emissivity can then be set to a value between 0.1 and 1.0, or selected from a pre-
set list of materials by selecting [Data].
MINIMUM MEASURABLE TEMPERATURE (U2-1-15-0 only)
• Setting Reflected Temperature Compensation
To enable and set reflected temperature compensation, use the main program menu
to select:
[Setup] → [Reflection Compensation]
Reflected temperature compensation can be enabled/disabled using [Compensate
for Reflected Temperature], and when enabled the temperature value can be set
between 45 and 2000°C, depending on the model selected.
To store the changes in the sensor’s memory, select [File] → [Save sensor processing
parameters].
Graph showing the minimum
measuarable object
temperature (Tmin), determined
by surface emissivity (ε) and
sensor temperature (TS).
