
5.
Orientate the new hydrogen sulfide sensor into the sensor pocket as shown in the image on the previous
page.
6.
Turn the 3-WAY SELECTOR VALVE to the SPAN position. Allow the measurement reading to
stabilize for 20 minutes.
7.
Press the SPAN Button and release. The word SPAN will appear on the LCD for 1 second and
then display the H
2
S reading, while the PPM FLAG blinks. Quickly press the appropriate
UP/DOWN ARROW to adjust the LCD reading to the value stated on your calibration gas
cylinder.
8.
Turn the 3-WAY SELECTOR VALVE back to the SAMPLE position.
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