Leak Test - Qrotech QRO-402 Operating Manual

QRO-402

6-3. Leak test

A function that looks for any possible air leakage from the sample-cell in order to indicate the exact result.
① Press the
MENU
CO
CO
λ
② If the message 'Leak test' is indicated on the indication window as shown above, mount the
leak test cap on the front side of the probe.
③ Press
ENTER key. The pump operates and the count values decrease by 1 from 20
during the 20-second leak test.
CO
CO
λ
④ If the test turns out normal without any leak after 20 seconds, a message is indicated
as 'PASS". If the leak is identified, the message is indicated as 'FAIL'.
OPERATING MANUAL
key once in the stand-by mode to select the Leak Test mode.
%
2
%
%
2
%
HC
O
2
AFR/NO
X
HC
O
2
AFR/NO
X
16
ppm
%
ppm
%