Operation - Extech Instruments SDL470-NISTL User Manual

Operation

Function/Measurement Selection
• Power the meter ON or OFF by pressing and holding the Power button for at least 2 seconds.
• If this is the first time the meter is powered ON or if the batteries have been replaced, the
meter may display the SET DATE message to remind user to set the date and time (see the
SETUP MODE section for setting the time and date).
• Scroll through the three measurement options (UVA LIGHT, UVC LIGHT, or TYPE K/J
THERMOMETER) by pressing and holding the Function button. The display icons are 'A' for
UVA Light, 'C' for UVC Light, and 'tP' for Type K/J thermometer.
UVA Light Meter
• Insert the UVA Probe Plug into the Probe Input Socket.
• Switch the meter ON by pressing and holding the Power button for at least 2 seconds.
• Select the UVA Light Meter option as described above in the Function/Measurement
Selection section.
• The display will show the µW/cm^2 unit of measure.
• The meter is now ready to make UVA light measurements.
• Holding the Sensor Handle, face the UVA Sensor toward the source of UVA light.
• The display will show the measurement reading.
UVC Light Meter
• Insert the UVC Probe Plug into the Probe Input Socket.
• Switch the meter ON by pressing and holding the Power button for at least 2 seconds.
• Select the UVC Light Meter option as described above in the Function/Measurement
Selection section.
• The display will show the µW/cm^2 unit of measure.
• The meter is now ready to make UVC light measurements.
• Holding the Sensor Body, face the UVC Sensor toward the source of UVC light.
• The display will show the measurement reading.
LCD Backlight
• Press and hold the HOLD/Backlight button for 2 seconds to switch the LCD backlight ON/OFF.
ZERO Adjustment
• Cover the light sensor with the protective cover.
• If the meter display does not read zero, press and hold both the up and down arrow buttons
simultaneously for at least 3 seconds.
• The display will automatically zero.
• Remove the sensor cover to begin taking measurements.
4 SDL470-en-GB_v1.4 3/17