Information Messages - palintest Lumiso Chlorine User Manual

12

Information Messages

Lumiso will display these messages as M numbers, if it
detects unexpected readings when making its optical
measurements
Message
Number
M1 and M2
M3 and M4
M5
A common cause that can trigger any of these messages to be
displayed is contamination of the optical windows or stained
glassware. See sections Keeping the Optics Clean and How to
Get Accurate Results. If messages continue to be displayed,
please contact your local Palintest branch or distributor.
Likely Cause
Blank is too dark
Contamination
obscuring optics
Blank, sample tube,
or NDF standard
moved or removed
too early
Light cap not fitted
correctly
External light entering
the optical cell
Suggested Action
Check and clean all
glass tubes used.
Repeat blanking
process
See "Keeping the
Optics Clean"
Carefully repeat
blanking and reading
procedure
Check or change light
cap on tube
Move instrument away
from external light