Meriam M2110L SMART LEVEL GAUGE - Manual (Page 11)

9R143 Dated 3/2011
9
P0 – LOCKOUT CODE
This feature provides security in the Smart Gauge. It is designed to prevent unauthorized personnel from tampering
with or inadvertently changing the configuration of the gauge. The lockout is controlled by a 2-digit setting in the
P0 register. Once a lockout code is entered, the gauge will prompt for the lockout code before allowing any changes
(similar to a “password”). Changes include Engineering Unit selection, re-zeroing, or entering Program Mode.
Following an operator action, if the correct code (password) is not entered when prompted, an error message is
briefly displayed. If the operator action was changing Engineering Units or re-zero the gauge, the gauge will simply
return to normal Measure Mode operation, without accepting any change. If the operator action was entering
Program Mode, the gauge will enter a “view-only” status (see page 21), denoted by the PRGM indicator flashing.
In Program Mode (and during lockout code prompting), the register value is shown as “L xx” to assist in
identifying the register. The “L ” indicates “Lockout”, and “xx” will consist of the current value.
QUICK REFERENCE: P0, LOCKOUT CODE
Px Name Description Value Range Notes
P0 Lockout Code Lockout for security. 00 to 99 00 = Disabled.
STEP BY STEP: P0, LOCKOUT CODE
Step Action Display
1 Gauge should be in the normal Measure Mode. Normal Pressure Display.
Press the PRGM/Enter
→ key.
2
If the lockout is active, the gauge will now prompt for entry of
the lockout code. Refer to “STEP BY STEP: ENTERING A
LOCKOUT CODE (When Prompted)” on page 21.
The PRGM annunciator shows at the top of the
display, and the display shows the register name
“P0”.
3 Press PRGM/Enter
→ again, to open the register.
The display will show “L xy” with the first digit
flashing for edit (indicating Lockout Code xy).
Press the Up
↑ or Down↓ keys repeatedly to scroll
to the desired numeric value for the flashing digit.
4
The Zero function (Up
↑ and Down↓) will reset the entire
register to 00 and allow editing to continue.
“L _x”, where “_” is the digit being edited
(flashing).
5 Press the PRGM/Enter
→ key to accept the digit.
The next digit begins flashing for edit.
6 Repeat steps 4 and 5 for the second digit. The complete 2-digit value will be accepted, and
the register is closed (display shows P0 for
selection).
7 Press the Backspace
← key to activate the lockout
and return to Measure Mode.
Normal Pressure Display.
Notes 1. After step 2, the Backspace
← key will abort the process and return to Measure Mode.
2. After steps 3 or 4, the Backspace
← key will abort the current digit and close the register (since it is
the first digit).
3. After step 5, the Backspace
← key will abort the current digit and backup to the first digit. Another
Backspace
← will abort the process and close the register.
4. After step 6, the PRGM/Enter
→ key will again open the register for edit.
5. During any programming operation, if there is no keypad activity for approximately 1 minute, the
operation is aborted and the gauge returns to Measure Mode unchanged.
All Models