CHAPTER 13 APPENDIX
Err. SIGNAL LOW: <130
Signal/noise ratio can be improved by increasing the signal:
For this purpose, decrease distance between fiberoptics and
sample; or increase GAIN (menu point 49) or MEAS-INT
(menu point 50). In the latter cases, the zero offset must be
newly determined (2: AUTO-ZERO).
Err. LOW BATTERY
Battery voltage has dropped below 11.2 V which means that
only 20-30 further measurements are possible: Recharge
battery or connect external battery by special cable
(MINI-PAM/AK, optional).
Err. ? NEW OFFSET ?
Last measurement may be erroneous as GAIN (menu point
49) or MEAS-INT (menu point 50) was changed without
being followed by new zero offset determination (2: AUTO-
ZERO). The warning can be overruled by pressing SET
while in menu position 1.
Err. ! CHECK BATTERY !
Battery voltage drops during application of a saturation pulse
below 8.5 V, which means that it is almost empty or too old:
Recharge or possibly replace battery.
Err. MEMORY: 001
Maximal MEMORY-number of 4000 is reached. With further
measurements, the new data sets will replace the old data sets
starting from No. 1.
Additional warnings and information are given by messages in
the left corner of the upper display line:
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