5.4 Passwords
The H201Ti’s user interface is protected by passwords. Entering a password is necessary
to modify parameters or to access specific sections of menus:
• Password No. 1 (first level): This password is 1253. It allows the user to modify
almost all the H201Ti’s parameters.
• Password No. 2 (second level): This password is 1231. It allows the user to access
the following items:
- The Calibration submenu (to calibrate the H201Ti).
- The NewSensor submenu (to enter the parameters of the Hydran 201 sensor).
- The three Clear commands in the History submenu (to erase the historic data
files).
Password protection prevents accidental or unauthorized changes of the H201Ti’s
parameters. The passwords should be divulged to authorized personnel only,
particularly password No. 2. The passwords are common to all H201Ti’s and cannot be
changed.
Note: Passwords used in the Hydran Host software are independent from those entered
via the H201Ti’s keypad, and they can be changed (see the Hydran Host Software Manual).
When the H201Ti requests a password, one of the following two messages is displayed:
• Password 1?
:1247
• Password 2?
:1247
Use the UP or DOWN key (see Figure 5-2) to increment or decrement the displayed
value, and press ENTER to accept the value. The user is now authorized to change the
parameters until they quit the Menu Navigation mode. No password will be requested
again unless a higher level password is required.
Note: All modifications are recorded in the historic data file Events (see Section 5.5.1).
5.5 Main and Extended Menus
The Main Menu gives access to the H201Ti’s most frequently used parameters and
commands. The Extended Menu gives access to all parameters and commands
(including all parameters and commands from the Main Menu).
Note: Even if the H201Ti’s menu system gives access to all its operation parameters, using
a host computer and General Electric Canada’s Hydran Host software simplifies the tasks.
For more information, see the Hydran Host Software Manual.
Table 5-5 below summarizes the functions of each submenu of the H201Ti’s
embedded software.
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