LION alcolmeter 500 - What Is An Acceptable CHECK Value?

lion alcolmeter
®
500 Mk IV User Handbook
32
down the push-button for a few seconds to flush the regulator of any
‘stale’ gas. Firmly attach the Connector Tube to the outlet port, and
attach a clean, dry mouthpiece to the sampling port on the 500.
This mouthpiece MUST be DRY: do NOT blow through it!
Now push the lipped end of the mouthpiece on the 500 over the
Connector Tube, to form a tight fit. Then hold down the AlcoCal
®
control button to allow gas to flow through the mouthpiece. After at
least five seconds of flow, press and release FSB to take the sample.
It is important that the gas then flows at least a further second, after
pressing FSB, before releasing the AlcoCal
®
button.
Once the AlcoCal
®
sample has been taken, observe the display:
Calibration CHECK Mode remains in use for further checks, if
needed, until switch off or auto-power down.
Did the reading agree with the AlcoCal
®
value? If it was outside the
acceptable range, the 500 needs Calibration ADJUSTMENT.
7.6 What Is An Acceptable CHECK Value?
A satisfactory CHECK result is generally one that is within ±0.03mg/L
of the value of the AlcoCal
®
gas standard.
So if the alcohol value of the standard is 0.35mg/L, then a CHECK
result between 0.32 and 0.38mg/L inclusive should be acceptable.
Sample Taken
Analysing:
Please Wait
Check Result:
0.34
mg/L