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Programmable register overview, Programmable register quick reference – Meriam M2110L SMART LEVEL GAUGE User Manual

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9R143 Dated 3/2011

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PROGRAMMABLE REGISTER OVERVIEW

All M2110L Smart Level Gauges have programmable registers that allow the gauge to be configured to fit the level
measurement application. Programmable registers are numbered P0 through P11. Each register controls a specific
aspect of the gauge’s performance.

Beginning on page 9 is a description of all programmable registers, and instructions for their use. Each register is
found on all M2110L Smart Level Gauge models, and performs the same function described for all models, except
as noted otherwise.

PROGRAMMABLE REGISTER QUICK REFERENCE

Px

Name

Description

Value Range

Notes

P0

Lockout Code

Lockout for security.

00 to 99

00 = Disabled.

P1

Timeout

Automatic shutoff in minutes of keypad
inactivity.

0 (disabled), 1, 2, 5,
10, 15, 25

Battery model only.

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.

P3

Residual
Hydrostatic
Pressure

Identifies the unmeasured or added
hydrostatic pressure due to piping
configurations.

-9,999 to +9,999
inH

2

O @ 20ºC.

+Val: Dip Tube
- Val: Direct Head

P4

Full Tank
Hydrostatic
Pressure

The pressure created by a full column
of fluid from the floor of the tank to the
top of the maximum level measured.

0 to 9,999 (Keypad)

0 to 19,999 (Serial)

Pressure in inH

2

O

@20

°C.

SetPoint Model: defines which relay
outputs are active.

0 = Disabled.
1 = SET1 only.
2 = SET2 only.
3 = Both enabled.

P5

SetPoint Options

Current Loop Model: defines the status
of the 4 - 20 mA output.

0 = 4-20 disabled
1 = 4-20 enabled

Not found on
Battery model.

P6

SET1

Controls SET1 relay or 4.00 mA value.

–20% to +120% FS

User defined value.

P7

SET2

Controls SET2 relay or 20.0 mA value.

–20% to +120% FS

User defined value.

P8

Deadband

Sets the amount of deadband in percent
of full scale for relays.

0 (disabled), 0.1,
0.2, 0.5, 1, 2, 5, 10%

SetPoint model
only.

P9

Tank Cylindrical
Capacity

The capacity, in Engineering Units, of
only the cylindrical portion of the tank.

0 to 9,999 (Keypad)
0 to 19,999 (Serial)

P9 = 0 for spherical
tanks.

P10

Tank Ends
Capacity

The capacity, in Engineering Units, of
only the dished ends of a horizontal
cylindrical tank (includes both ends).
Or, total capacity for spherical tanks.

0 to 9,999 (Keypad)

0 to 19,999 (Serial)

P10 = 0 for linear
tanks, or cylindrical
tanks with flat ends.

P11

Tank Type

Identifies type of tank.

0 = Linear/Vertical
1 = Non Linear