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FUEL
SUPPLY
SYSTEMS
Analog
Level
Controller
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Analog Level
Controller
The Analog Level Controller
is a relay based, float switch activated, multifunction liquid
level controller. The controller is UL 508A Listed. It can be
supplied for any tank construction in a number of installation
configurations, including:
TYPE 1 enclosure
TYPE 3R enclosure
TYPE 4X enclosure
The controller is activated by level point sensing float switches.
The controller may be supplied with an optional float switch-level
transmitter assembly designed to the specific tank dimensions.
The transmitter assembly can be supplied in a number of mounting
configurations, including:
3.5" NPT
4.0" NPT
Gasketed plate
The controller can also accept float switch/point level sensing
contact closures from other, buyer supplied devices such as leak
sensors, pressure switches or other sensors. Depending on mode
selected, these inputs will activate alarms or initiate pump
control functions.
The standard level transmitter is suitable for use with class-II
flammable liquids or water. Optional level transmitters are available:
Intrinsically safe
transmitters
for use with Class
I liquids
Alloy or plastic
materials for
use with corrosive
liquids
Consult Simplex for compatibility of materials.
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Standard Models
Single
Pump Tank Fill
Duplex
Pump Tank Fill, Automatic alternating lag pump back-up
Single
Pump Tank Drain
Duplex
Pump Tank Drain, Automatic alternating lag pump back-up
Duplex
Pump Tank Drain, Pump 1 Fill and Pump 2 Safety Drain
Duplex
Pump Tank Fill,
Automatic alternating pressure/flowswitch control
Typical Transmitter Arrangement
User may specify all control and alarm level points.

A 2 HP pump control power relay is provided, plus output contacts
for high and low level alarms.
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191
- Leak sensor, input, alarm,
alarm relay
260 - Main power input
disconnect switch
261A - Single-phase main power
input circuit breaker
261B - 3-phase main power
input circuit breaker
262 - Control power transformer
298 - System off remote alarm relay
299 - Auxiliary control relay
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333
- Low-low level alarm, sensor,
input, alarm relay
334 - Audible alarm horn
346 - Pump running time meter
347 - Manual duplex pump controller
212 - Tank Commander TC-2 digital
tank level gauge
214 - Digital flow gauge, flow totalizer
768 - Single-phase mtor starter
770 - 3-phase motor starter
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