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Operating Instructions
The Mode Field of the Front Panel Display indicates to the user which operating
mode the unit is currently running. Besides SAMPLE and SETUP, other modes the
analyzer can be operated in are summarized in Table 6-1.
Mode
SAMPLE
SAMPLE A
ZERO CAL M
ZERO CAL A
ZERO CAL R
LO CAL A
LO CAL R
SPAN CAL M
SPAN CAL A
SPAN CAL R
M-P CAL
(1)
SETUP
DIAG
(1)
The revision of the T-API Software installed in this analyzer will be displayed following the word SETUP. e.g.
"SETUP c.4"
6.2. Sample Mode
This is the analyzer's standard operating mode. In this mode the instrument is
analyzing the gas in the Optical Bench, calculating O
this information to the user via the Front Panel Display, the Analog outputs and, if
set up properly, the RS-232/485 ports.
A value of "XXXX" displayed in the O
that the analyzer is not able to calculate a valid concentration,
usually because the lamp intensity (O3 REF value) is not stable
56
Table 6-1: Mode Field of the Display
Sampling normally, flashing indicates adaptive filter is on.
Indicates that unit is in SAMPLE Mode and AUTOCAL feature is activated.
Unit is performing ZERO Cal procedure initiated manually by the user.
Unit is performing ZERO Cal procedure initiated automatically by the analyzer's
AUTOCAL feature
Unit is performing ZERO Cal procedure initiated remotely via the RS-232, RS-4485
or Digital I/O Control Inputs.
Unit is performing LOW SPAN (midpoint) Cal Check procedure initiated
automatically by the analyzer's AUTOCAL feature
Unit is performing LOW SPAN (midpoint) Cal Check initiated remotely via the RS-
232, RS-4485 or Digital I/O Control Inputs.
Unit is performing SPAN Cal procedure initiated manually by the user.
Unit is performing SPAN Cal procedure initiated automatically by the analyzer's
AUTOCAL feature
Unit is performing SPAN Cal procedure initiated remotely via the RS-232, RS-4485
or Digital I/O Control Inputs.
This is the basic Calibration Mode of the instrument and is activated by pressing
the CAL key.
SETUP mode is being used to configure the analyzer (O
during this process
One of the analyzer's Diagnostic Modes is being utilized (see Section 6.6.1).
or is outside of the valid range.
Meaning
concentration and reporting
3
NOTE
Concentration field means
3
Model 400E Ozone Analyzer
Instruction Manual
sampling will continue
3
P/N 04316 Rev: B
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