34
SECTION 3, continued
Edits a flashing digit in the calibration mode or sequences
through the calibration standards (S0,S1, S2, S3) or
diagnostic menu.
Used to move the editing cursor to the digits being edited in
the calibration mode or initiate editing of a standard value.
Turns the signal averaging function on or off.
Selects the diagnostic mode.
Selects Auto Range or Manual Range (one of three manual
modes).
Display Icon Description
DIAG Turns on after the DIAG is pressed to access the diagnostic
mode. A number displayed under the
DIAG icon (1-9)
indicates which diagnostic function is active. See Section 5.1
on page 67 for more information on diagnostic codes.
CAL Turns on after the CAL key is pressed to access the
calibration mode and remains on during the calibration.
CAL? Appears after calibration if a value entered during calibration
is outside an acceptable range. May indicate an operator error
or possible instrument malfunction. Flashing CAL? indicates
the default calibration coefficients are being used (even after a
user-calibration has been done) or that no calibration data is
currently stored.
S__ Displayed during calibration. The S is followed by a number to
indicate which standard value is currently being edited or dis-
played. Flashing number is prompting user for measurement
of
S0, S1, S2 or S3 to establish a calibration. Steady number
identifies which standard's value is being displayed.
Flashes when the battery voltage drops to 4.4 volts as an
indication to change batteries. At <4.0 volts, the instrument
automatically shuts off.
The lamp symbol is constantly on when the lamp is on and
flashes after a reading if a marginal light level reaches the
transmitted light detector. A flashing icon indicates the sample
may be too turbid (not within measurement range) and needs
dilution or the lamp needs replacing.
Key Description
SIGNAL
AVERAGE
DIAG
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