Meriam M2110P SMART PRESSURE GAUGE - Manual (Page 13)

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User’s Manual Dwg No 9R141-IR
Press the Up
↑ or Down↓ keys repeatedly to scroll
to the desired register.
3
The Zero function (Up
↑ and Down↓) will reset the scroll to P0
and allow selection to continue.
Display shows “P1”.
4 Press PRGM/Enter
→ to open the register.
The display shows the current value.
Press the Up
↑ or Down↓ keys repeatedly to scroll
to the desired register value.
5
The Zero function (Up
↑ and Down↓) will reset the scroll to
default and allow editing to continue.
All available choices are scrolled.
(Choices indicate actual Timeout in seconds.)
6 Press the PRGM/Enter
→ key to accept the desired
value.
The value is accepted, and the register is closed.
Display shows “P1”.
7 Press the Backspace
← key to activate the register
setting and return to Measure Mode.
Normal Pressure Display.
Notes 1. After steps 2 and 3, the Backspace
← key will abort the process and return to Measure Mode.
2. After steps 4 and 5, the Backspace
← key will abort the edit and close the register.
3. After step 6, the PRGM/Enter
→ key will again open the register for edit.
4. 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.
9. P2 – Damp Rate All Models
The M2110P has a selectable damp rate, which is used to stabilize the display for applications with a pulsating
pressure source. The damp rate setting is roughly the length of time it will take for the gauge to ramp from one
stable pressure to another. The ramping is exponential, changing at a slower rate as the final value is
approached.
The “time constant” of the exponential equation is roughly one-fifth of the damp rate setting. This means that
the damped value will be roughly 63% of final value after a time equal to one-fifth of the register setting. The
value will be roughly 86% of final value after a time equal to two-fifths of the register setting.
The damping function only affects the displayed value (LCD display and RS232 data); it does not affect the
action of the SPDT relays, the 4 to 20 mA outputs, or the response to over-pressure (“OP” indication).
QUICK REFERENCE: P2, DAMP RATE
Px Name Description Value Range Notes
P2 Damp Rate Exponential damping time in
seconds. 0.1, 0.2, 0.5, 1, 2,
5, 10, 15, 25, 50 0.1 = No
Damping.