Zeroing The Manometer; Program Mode - Meriam M2 Series User Manual

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M2 Series
Instruction Manual 9R000045-A

2. Zeroing the Manometer

To zero the manometer, first turn off pressure sources and vent
pressure ports to atmosphere. The display should read close to zero.
Press the MIN/MAX and HOLD keys at the same time and then
release. This begins the zeroing process. The top line of the display
reads "ZERO IN PROGRESS" while the bottom line counts down
from 9. The process is complete when the unit returns to Measure
Mode. The lockout function, if enabled, does not interfere with the
zeroing of the manometer.
Note: The smart manometer can only be zeroed if the new zero
value is within +/-5% (of FS) of the original factory calibrated zero.
If the zero procedure generates a new zero value outside this limit
a "ZERO RANGE ERROR" message appears indicating that the
procedure failed.

3. Program Mode

The program mode is used to configure the manometer for
Measure Mode operation. After the PRGM key is pressed in
Measure Mode, the top line of the display reads "PROGRAM
MODE". The bottom line reads "UNITS SELECT". Press the
arrow keys to scroll through the Program Mode to the desired
register. The configurable registers that are found in Program
Mode are Units Select, Damp Rate Select, User Info Select,
Contrast Select, Data Logging, Leak Test and Exit. Two sub-
modes under "Units Select" are provided: User Unit Select and
Flow Unit Select. Press the PRGM key to select either of these
sub-modes and set up their respective function. The manometer
can be put into Program Mode at any time during Measure Mode
operation by pressing the PRGM key. If Lockout is set, the correct
code must be entered when prompted.
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