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M300EU OPERATING INSTRUCTIONS M300EU
Addendum to M300E/EM Manual P/N 04288
6.5. SETUP Æ MORE Æ VARS: INTERNAL VARIABLES
(VARS)
The information found in Section 6.12 of the M300E/EM Operators Manual (P/N 04288) is applicable to the
M300EU with the following exception(s):
• There is no STABIL_GAS variable available under the VARS menu of the M300EU.
• The following table supersedes Table 6-14 of the M300E/EM Operators Manual (P/N 04288).
Table 6-3: Test Functions Defined
NO. VARIABLE DESCRIPTION
ALLOWED
VALUES
0
DAS_HOLD_OFF
Changes the internal data acquisition system (iDAS) hold-off
time, which is the duration when data are not stored in the
iDAS because the software considers the data to be
questionable. That is the case during warm-up or just after
the instrument returns from one of its calibration modes to
SAMPLE mode. DAS_HOLD_OFF can be disabled entirely
in each iDAS channel.
Can be between 0.5
and 20 minutes
Default=15 min.
1
CONC_PRECISION
Allows the user to set the number of significant digits to the
right of the decimal point display of concentration and
stability values.
AUTO, 1, 2, 3, 4
Default=AUTO
2
DYN_ZERO
Dynamic zero automatically adjusts offset and slope of the
CO response when performing a zero point calibration
during an AutoCal (Chapter 7).
ON/OFF
3
DYN_SPAN
Dynamic span automatically adjusts slope and slope of the
CO response when performing a zero point calibration
during an AutoCal (Chapter 7).
Note that the DYN_ZERO and DYN_SPAN features are not
allowed for applications requiring EPA equivalency.
ON/OFF
4
CLOCK_ADJ
Adjusts the speed of the analyzer’s clock. Choose the +
sign if the clock is too slow, choose the - sign if the clock is
too fast.
-60 to +60 s/day
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