Meriam M2110L SMART LEVEL GAUGE User Manual

9R143 Dated 3/2011 i Meriam’s M2110L Smart Level Gauge is a microprocessor-based pressure sensing device with algorithms to calculate level.

9R143 Dated 3/2011 8 ZERO REFERENCE Zeroing the gauge consists of accepting the current applied pressure value as the zero pressure reference. To

9R143 Dated 3/2011 9 P0 – LOCKOUT CODE This feature provides security in the Smart Gauge. It is designed to prevent unauthorized personnel from ta

9R143 Dated 3/2011 10 P1 – TIMEOUT VALUE This register sets the length of time (in minutes) for automatic shutoff. The Battery model will automati

9R143 Dated 3/2011 11 P2 – DAMP RATE The Smart Gauge has a selectable damp rate, which is used to stabilize the display for applications with a pul

9R143 Dated 3/2011 12 P3 – RESIDUAL HYDROSTATIC PRESSURE The M2110L Smart Level Gauge will correctly measure level when used with a dip tube or as

9R143 Dated 3/2011 13 Press the Up↑ or Down↓ keys repeatedly to scroll to the desired register. 3 The Zero function (Up↑ and Down↓) will reset the

9R143 Dated 3/2011 14 P4 – FULL TANK HYDROSTATIC PRESSURE This register is used by the gauge to draw a relationship between measured static pressur

9R143 Dated 3/2011 15 P5 – SETPOINT OPTIONS This register defines the output action for SetPoint and Current Loop models. Note that if an output i

9R143 Dated 3/2011 16 P6 and P7 – SETPOINT (SET1 and SET2) SetPoint Model These registers define the pressure points at which the SPDT relays wi

9R143 Dated 3/2011 17 P8 – DEADBAND This register is found on the SetPoint model only. It sets the adjustable deadband for the SPDT relays. Deadb

9R143 Dated 3/2011 ii Table of Contents LEVEL DISPLAY...

9R143 Dated 3/2011 18 P9 – TANK CYLINDRICAL CAPACITY The Smart Level Gauge calculates level based on measured hydrostatic pressure, by drawing a re

9R143 Dated 3/2011 19 P10 – TANK ENDS CAPACITY The Smart Level Gauge calculates level based on measured hydrostatic pressure, by drawing a relation

9R143 Dated 3/2011 20 P11 – TANK TYPE This register identifies the type of tank application, with respect to the vertical fluid pressure measureme

9R143 Dated 3/2011 21 LOCKOUT CODE PROMPT DESCRIPTION When a gauge is “locked” for security purposes, it does not allow access to change its oper

9R143 Dated 3/2011 22 SERIAL PORT SERVICE The M2110L Smart Level Gauge SetPoint models and Current Loop models provide RS-232C communication capab

9R143 Dated 3/2011 23 IMPACT ON OPERATION Use of the serial port service is independent of the operating mode of the gauge, and vice versa. It i

9R143 Dated 3/2011 24 ERROR CODES All Smart Gauge models have an error/message feature to inform the operator of problems with the operation or pr

9R143 Dated 3/2011 25 INSTALLATION AND WIRING The SetPoint model utilizes the multi-function terminal strip shown at the left. This

9R143 Dated 3/2011 26 CURRENT LOOP MODEL LOOP WIRING Note: R = Receiving Device 24 VDC/ 50 mA

9R143 Dated 3/2011 27 OUTLINE DIMENSIONS PANEL MOUNTING 1. Make a ¼ DIN panel cutout per drawing. 2. Remove the two 6-32 socket head sc

9R143 Dated 3/2011 1 LEVEL DISPLAY Indicators During normal operation, the gauge displays the level value in large numerals, and the bottom of t

9R143 Dated 3/2011 28 PRODUCT SPECIFICATIONS TYPE & RANGE: DN: Differential Non-isolated DI Differential Isolated GI: Gauge Isolated

9R143 Dated 3/2011 29 RANGE LIMITS AND INDICATION Sensor Hard Soft Certified Soft Hard Type Under Under Range Over Over Range Ran

9R143 Dated 3/2011 30 SERVICE AND CALIBRATION In the event an M2110 requires service or needs to be returned for factory recertification, battery

9R143 Dated 3/2011 2 SAFETY WARNINGS The table below defines the safety symbols, signal words and corresponding safety messages used in the manual

9R143 Dated 3/2011 3 CERTIFICATION / SAFETY / WARNINGS Fire/Explosion Hazard. This instrument is not intrinsically safe. DO NOT use or service in

9R143 Dated 3/2011 4 KEYPAD FUNCTIONS: The keys on the front panel perform multiple functions. Their function differs depending on whether the gau

9R143 Dated 3/2011 5 PRGM/Enter Key PRGM Document Symbol: (PRGM/Enter→) Measure Mode (and EU Selection) Selects Program Mode, which allows acce

9R143 Dated 3/2011 6 PROGRAMMABLE REGISTER OVERVIEW All M2110L Smart Level Gauges have programmable registers that allow the gauge to be configure

9R143 Dated 3/2011 7 ENGINEERING UNITS The following Engineering Units are available on the M2110L Smart Level Gauge: 1. Gallons 2. Pounds 3.