PR203 Radiometer Irradian Limited
3
(continued):
BUTTON AND CONNECTOR DESCRIPTIONS
Turns the display backlight on and off.
The display backlight will turn off automatically
after 60 seconds.
ZERO Starts a zero or background measurement.
RESET Press to return to the normal measurement
mode from either the manual range or special
function modes.
Note the display hold is not reset.
RANGE Selects either auto ranging or manual range
control. In manual range control, repeated button
pressing steps through the gain ranges.
SOURCE Select between the three measurements of
irradiance from different light sources;
Halogen, Fluorescent or LED (Light Emitting
Diode) in spectral irradiance units (µW/cm
2
/nm).
MODE Select between the Average, Min, Max and
Integrate special function modes.
FUNCTION RESET Press to reset the function mode values to zero.
HOLD/RUN Press to hold the current reading.
Press again to release the held readings.
Press to run or hold a special function mode.
Turns the power on and off.
Connector Computer interface connection (5 pin RS232).
(optional radiometer-computer interface cable).
Connector Detector connection (8 pin).
