The LIQUID LEVEL CONTROLLER automatically turns pumps on and off  to regulate liquid level automatically. 

LEVEL CONTROLLER LC3-PP
AUTOMATIC TANK FILLING
  • Emergency High Level Alarm in case the level overfills, a separate float switch dedicated to over.

  • Loud 103dB warbling tone cuts through the loudest industrial noise.
  • Rugged. Built for rough, wet and corrosive environments. NEMA 4X rating.

  • Reliable. Floats are protected inside a pipe and completely screened in.

  • High capacity. 15A relay will control up to 1/2 HP @ 120V.
  • DIY. Floats can be easily wired to screw terminal blocks.

  • Versatile. Switch between pump-down or pump-up operation.

  • Compact Box measures only 4 x 4 x 2 inches. (100x100x50 mm)
OPERATION

The LC3 Level Controller will automatically cycle your pump to keep your tank filled, or empty if that’s how you set it. In tank-filling mode, when the liquid level drops to the bottom float switch, the LC-2 Pump Controller turns on your pump to fill the tank. When the liquid level rises to the high level float, the LC3 shuts off your pump. The cycle repeats automatically as needed to properly maintain your liquid level.

To switch between to pump-down mode, simply remove a circuit board jumper.

EMERGENCY LEVEL ALARMS INCLUDED

If there is a problem that causes the liquid level to rise above the high level-control float, or fall below the low-control float, extra “emergency” floats causes an alarm. This alarm is given with a flashing LED and loud warbling buzzer that can be heard through any industrial plant noise. The emergency alarm float is also a redundant relay shutoff.

The audio buzzer has a silence button that with a 30 minute snooze alarm if desired so the alarm won’t be forgotten.

INSTALLATION

The LC3 Pump Controller has an electronics box that mounts on the wall.  The adjustable level probes are  quickly installed and working by adjusting the depth of the high and low float with the thumb screws.  There is at least 6 inches of adjustability in each pipe.  The standard high level pipe is 8 inches long. The low level float pipe is selectable in 10 inch increments.  The standard communications cable length is 10 ft.

To connect your pump or solenoid, it comes with a convenient piggyback plug so you can simply plug in your pump directly.  Alternatively, we can supply a solenoid valve already wired to the level controller as an option.

MODELS

Polypropylene pipe and float models (LC3-PP) have stacked floats spaced 1 inch apart. Therefore there are only two pipes containinga total of 4 floats.

Kynar pipe with PTFE float models (LC3-KF) do not have stacked floats but rather, one individual (PTFE) float switch in each PVDF pipe.  We include 3  float pipes in the price of the LC3.  Each level probe pipe has at least 6 inches of adjustability.

INSIDE VIEW

TYPICAL FLOAT SWITCH SETUP

PIPE SPECS (applies to both PP and Kynar)

  • Pipe Working Depth (high pipe)……….. 8 inches
  • Bottom pipe working depth………………10,20,30,40,50 inches  
  • Pipe nominal diameter …………………..3/4″ (sch 80)
  • Pipe O.D. ………………………………….27 mm [1.06″]
  • Pipe I.D. …………………………………..18 mm [0.71″]

PHYSICAL

  • Sound pressure level………………………103dB @ 2 feet
  • Buzzer diaphragm…………………………..316SS
  • Float Specific Gravity……………………….0.88
  • LED lens……………………………………..Lexan
  • Depth adjust thumbscrew…………………18-8 SS with Acetal head
  • Ingress protection level…………………….IP65
  • Electrical enclosure…………………………PVC conduit body 3/4″
  • Default mounting…………………………….2 inch NPS plug with rubber gasket (55 gal. drum thread)

ELECTRICAL

  • Relay output………………………………….15A
  • Input…………………………………………..120VAC
  • Fuse…………………………………………..PCB mount (not replaceable)
  • Piggyback cord………………………………SJOOW jacket, 14AWG conductors x 3
  • Cord grips…………………………………….Nylon with rubber gasket

The “high level” float pipe is 8 inches by default.  The depth of the low pipe is specified in the part number as in the chart below.  If you need a different “high level” length, simply leave a note in product notes field when ordering.

EXAMPLES

LC3-PP-10     LC3-PP-20     LC3-PP-30     LC3-PP-40     LC3-PP-50     polypropylene pipe & float

LC3-KF-10     LC3-KF-20     LC3-KF-30     LC3-KF-40     LC3-KF-50     Kynar pipe / PTFE float

ORDER HERE

ORDER LC3-PP

Polypropylene pipe & float switch.

Longest Probe Depth
Depth of the Low float
ORDER LC3-KF

Kynar pipe & PTFE float switch.

Low Level Probe Length
High Level depth if not 8"
Length of Emergency float

OPTIONS

Extra cable

Extra cable length over the standard 10 feet. Heavy 0.032″ jacket for superior durability, Eight stranded conductors x 24 gage.
[C-8] $0.58/ft

SOLENOID VALVE
Red Hat brand with 10 ft SJOOW cord standard.  Comes wired to the timer with a rubber-covered cord.
[–SV–size]
Pipe size
Cord length if other than 10'
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