Teledyne API Model 200A NOX Analyzer Instruction Manual, 02246, Rev. G, DCN 5247
5.3.5 Password Enable
If password protection is enabled, a password is required to access calibration or setup menus. In
the VARS menu a password is always required. To enable passwords press SETUP-PASS-ON.
A list of passwords is in Table 5-5-8.
Table 5-5-8: Calibrate, Setup Passwords
Password Usage Password
Calibration Password Use to get into CAL menus 512, 101
Setup Password Use to get into SETUP menus 818, 101
5.3.6 Time of Day Clock
The instrument has an internal time of day clock. The time of day can be set by pressing SETUP-
CLOCK-TIME and entering the time in 24hr format. In a similar manner the date can be entered
by pressing SETUP-CLOCK-DATE and e ntering the date in a dd-mmm-yy format.
If you are having trouble with the clock running slow or fast, the speed of the clock can be
adjusted by selecting the CLOCK_ADJ variable in the SETUP-MORE-VARS menu. The units
of CLOCK_ADJ are seconds per day.
The M200A software and hardware has been designed and tested to operate properly during the
year 2000 calendar rollover.
5.3.7 Diagnostic Mode
The M200A Diagnostic Mode allows additional tests and calibrations of the instrument. These
features are separate from the TEST functions because each DIAG function has the ability to
alter or disable the output of the instrument. While in DIAG mode no data is placed in the DAS
averages. Details on the use of Diagnostic mode are in Section 9.1.3.
5.3.8 Communications Menu
The COMM menu allows the RS-232 BAUD rate to be set. To set the BAUD rate press SETUP-
MORE-COMM-BAUD, select the appropriate BAUD rate, then press ENTR.
The instrument ID number can also be set. This ID number is attached to every RS-232 message
sent by the M200A. To set the ID press SETUP-MORE-COMM-ID and enter a 4 digit number
from 0000-9999, then press ENTR.
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