LANDTEC BG3K2, Руководство по эксплуатации, Страница: 173 / 181

Operating Manual
Problem Solving
173
© Copyright 2016 OMBG3000 – Rev1
To rectify this:

Ensure the BIOGAS 3000 module contains none of the gas that is being
zeroed by flushing through with nitrogen, or clean ambient air if this is
not available and repeat a user zero calibration

Ensure the correct zero calibration has been selected (nitrogen, fresh
air, or a mix with none of the target gas present) and retry

Ensure the flow regulator on the gas bottle is open (if being used).
If after performing the above steps the problem is still present, please contact
our technical support team at (800) 968-2026 or email
landtec_support@qedenv.com .
9.10.5.2 User Span Calibration Failed
Check the span target (see Gas Mixtures ) is set to the value given on the
calibration bottle. If not, correct and re-span the channel.
In addition, check that the flow regulator on the gas bottle is open.
If the problem persists, repeat an entire user calibration by zeroing the channel
prior to performing a span calibration.

Note: Always ensure that the on-screen reading has begun to stabilize
before pressing ‘Check’. If you notice that the reading is still changing
after the elapsed time, use the ‘Retry’ function and perform the span
calibration again.
If after performing the above steps the problem is still present, please contact
our technical support team at (800)968-2026 or email
landtec_support@qedenv.com .
9.10.5.3 Channel Outside of Limits
A channel outside of its limits to be calibrated is indicated by the icon in
the ‘User Calibration’ screen. The cause of this is either:

The channel is under-ranging or over-ranging

The current user reading is too far from the target