Keypad functions, On/off / backspace key, Eng units/up arrow key – Meriam M2110P SMART PRESSURE GAUGE User Manual

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3. Keypad Functions

The keys on the front panel perform multiple functions. Their function differs depending on whether the gauge
is in Measure Mode or Program Mode.

Measure Mode is the normal operating mode for measuring and displaying pressure. This mode is

always default after power-up or reset.

Program Mode is used to configure the various options of the gauge. This mode is denoted by a

PRGM indicator on the display.

ON/OFF /
Backspace
Key

ON

/ OFF

Document Symbol: (Backspace

)

Measure Mode

Battery models: Toggles the gauge ON and OFF.

SetPoint and Current Loop models: “Resets” the gauge.

Sequence of power-up or reset
1. Display test is performed (all segments of the LCD display are turned on).
2. Firmware revision is displayed.
3. Full scale range of sensor is displayed in the last Engineering Unit used.
4. All prior register values are restored and activated.
5. Measure Mode displays pressure in the last Engineering Unit used.

Program Mode

Backspace function:

From Program Mode, this key will exit to Measure Mode.

When editing a register, this key is used to abort a programming operation and exit the
register without making any changes.

When editing a multi-digit value, each key press will backup one digit, until finally
exiting the register.


ENG
UNITS/Up
Arrow Key

ENG

UNITS

Document Symbol: (Up

)

Measure Mode

Allows the Engineering Units to be changed. During Engineering Unit selection, the
current unit indicator remains solid, and the “new” unit indicator is flashed. Scrolling
through the available units is done by pressing the Up

↑ or Down↓ keys. The flashing

unit is selected using the PRGM/Enter

→ key, or the process may be aborted by using

the Backspace

← key.

Program Mode

(and EU Selection)

Scroll up function. Scrolls up through the available programmable registers. Once a
register is opened, this key allows editing by scrolling up through the values in the
register.


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