FORENSICS DETECTORS FD-600 - Span Calibration Procedure; Performing GasCheck Span Calibration; Time and Date Settings; Setting Device Date and Time

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FORENSICS DETECTORS
TM
www.forensicsdetectors.com
SPAN CALIBRATION (see our YouTube Channel for Calibration tutorial)
GasCheck: Span calibration is undertaken to ensure accurate gas concentration
reading (i.e. ensure that the display reading in ppm is accurate and true). For this
combustion analyzer, we recommend a calibration CO value of 100ppm. The
span calibration gas concentration chosen is best chosen to represent the
concentration that the sensor typically is exposed to, as to ensure maximum
accuracy for application use. We recommend calibration to be undertaken every
6 months.
To undertake span calibration from the MENU SCREEN select GasCheck. Select
passcode 1111. Select Gas to Span Calibrate. Expose to CAL gas for 1 min. For
O2, simply expose the analyzer to fresh air, which will have 20.9% of O2. When
using gas bottles, maintain a flow of about 0.5L/min when using gas bottles.
Enter and edit the gas concentration so the detector knows the concentration of
the calibration gas. After exposure, press SAVE. When complete, “SAVE
SUCCESS” is displayed. Use an appropriate multigas mixture is OK or single gas
mixture is also OK to calibrate a single sensor. Again, for oxygen, don’t forget to
simply use fresh ambient air 20.9%.
MENU SCREEN
GasCheck
Example O2 sensor
TIME AND DATE
SetTime: Select SetTime from the Main Menu Screen. Select EDIT to make the
necessary date and time changes.