Teledyne 9110T - Nitrogen Oxides Analyzer - Manual (Page 106)

Model 9110T NOx Analyzer Setup Menu
Teledyne Analytical Instruments 106
 a span gas with the concentration of 100 ppm can be used if the span gas passes through
the same dilution steps as the sample gas, or;
 a 5 ppm span gas must be used if the span gas IS NOT routed through the dilution system.
5.5. SETUP  PASS: PASSWORD PROTECTION
The 9110T provides password protection of the calibration and setup functions to prevent unauthorized
adjustments. When the passwords have been enabled in the PASS menu item, the system will prompt
the user for a password anytime a password-protected function (e.g., SETUP) is selected. This allows
normal operation of the instrument, but requires the password (101) to access to the menus under
SETUP. When PASSWORD is disabled (SETUP>OFF), any operator can enter the Primary Setup
(SETUP) and Secondary Setup (SETUP>MORE) menus. Whether PASSWORD is enabled or disabled,
a password (default 818) is required to enter the VARS or DIAG menus in the SETUP>MORE menu.
There are three levels of password protection, which correspond to operator, maintenance and
configuration functions. Each level allows access to all of the functions in the previous level.
Table 5-2: Password Levels
PASSWORD LEVEL MENU ACCESS ALLOWED
Null (000) Operation All functions of the MAIN menu: TEST, GEN, initiate SEQ , MSG, CLR
101 Configuration/Maintenance Access to Primary Setup and Secondary SETUP Menus when PASSWORD is
enabled.
818 Configuration/Maintenance Access to Secondary SETUP Submenus VARS and DIAG whether PASSWORD
is enabled or disabled.
To enable passwords, press: