Liquid Level - Madison
Liquid level control measures and manages the level of liquids in tanks, sumps and vessels. Reliable level control prevents overflows, protects pumps and keeps inventory and processes running smoothly.
Liqui...
Float switches are one of the simplest and most dependable ways to sense liquid level. A buoyant float rises and falls with the liquid and opens or closes a switch at a set point to start a pump, stop a fill or trigger a high or low level alarm.
Float Switch Types
- Tethered cable floats – wide switching range for sumps and wastewater
- Vertical stem floats – compact, precise point level in tanks
- Side-mount floats – install through the tank wall
- Multi-point float switches – several level points on one stem
- Sanitary and chemical-resistant floats – stainless, PVDF and polypropylene
Choosing a Float Switch
Consider the liquid's specific gravity, temperature and chemical makeup, along with the tank's size and mounting options. Check the switch rating against the load. Many pumps need a relay or motor control panel. Avoid using floats in turbulent or heavily coated liquids unless they're designed for it.
Centro offers float switches for water, wastewater, chemical and process tanks, and can help you match material and mounting to your application.
Related categories: Liquid Level | Level Transmitters | Float Switch | Radar | Differential Pressure Control
Liquid level switches detect when a liquid reaches a set point in tanks, sumps and vessels. They control pumps and valves and trigger high and low alarms.
Level Switch Types
- Float switches – simple, reliable switching
- Vibrating fork switches – unaffected by foam or turbulence
- Conductivity switches – conductive liquids
- Optical switches – compact point detection
- Capacitive switches – liquids and slurries
Choosing a Switch
Consider liquid type, temperature, pressure, buildup and mounting. Use an independent high-level switch for overfill protection.
Centro supplies liquid level switches for tanks and sumps.
Related categories: Liquid Level | Level Sensors | Differential Pressure Control | Water Gauges | Radar
Panel meters and displays turn signals from transmitters, sensors and electrical circuits into clear readings on a control panel. Operators can see flow, temperature, pressure, level, speed or current at a glance, and many models also provide alarms and retransmitted outputs.
Display Options
- Process meters – read 4-20 mA and 0-10 V signals in engineering units
- Electrical meters – AC/DC voltage, current and power
- Temperature displays – direct thermocouple and RTD inputs
- Rate and totalizer meters – flow rate, totals and counts from pulse inputs
- Large-digit displays – visible across the plant floor
Choosing a Meter
Match the input type and range, then decide whether you need relay alarms, analog retransmission or serial communication. Check the panel cutout size (1/8 DIN is common), power supply and front-panel rating for washdown areas. Loop-powered meters are useful where no separate power is available.
Centro carries panel meters and displays from leading instrumentation brands and can help you match one to your signal.
Related categories: Controllers | PID
Liquid level sensors detect or measure liquid in tanks and containers. They support pump control, inventory tracking and overfill protection.
Sensor Types
- Ultrasonic sensors – non-contact continuous level
- Capacitive sensors – point and continuous level
- Optical sensors – compact point detection
- Submersible pressure sensors – hydrostatic level
- Float sensors – simple, dependable
Choosing a Sensor
Consider liquid type, tank size, mounting and the output you need. Foam, vapor and buildup affect some technologies.
Centro supplies liquid level sensors.
Related categories: Liquid Level | Water Gauges | Level Switches | Differential Pressure Control | Radar
Flow switches monitor liquid or air flow and trigger alarms or shutdowns when flow is too low or too high. They protect pumps, heat exchangers, chillers and cooling systems.
Flow Switch Types
- Paddle flow switches – simple, rugged
- Thermal flow switches – no moving parts
- Piston and magnetic flow switches – precise set points
- Air flow switches – ducts and HVAC
Choosing a Switch
Select by media, flow range, pipe size, pressure and temperature. Adjustable set points add flexibility.
Centro supplies flow switches.
Related categories: Flow Control | Flow Transmitters | Flow Meters | Flow Sensors | Flow Control Accessories
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$517.33$649.00
$656.03$823.00
$710.23$891.00
$167.40$210.00
Subject to factory lead times
$334.79$420.00
Subject to factory lead times
$148.27$186.00
$38.27$48.00
$361.10$453.00
$167.40$210.00
Subject to factory lead times
$598.64$751.00
$271.82$341.00
Subject to factory lead times
$271.82$341.00
Subject to factory lead times
$543.64$682.00
Subject to factory lead times
$403.35$506.00
$94.86$119.00
Subject to factory lead times
$94.86$119.00
Subject to factory lead times
$189.72$238.00
Subject to factory lead times
$121.96$153.00
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
$0.00$273.00
Configure product to see pricing
Configure product to see pricing
$517.33$649.00
$656.03$823.00
$710.23$891.00
$167.40$210.00
Subject to factory lead times
$334.79$420.00
Subject to factory lead times
$148.27$186.00
$38.27$48.00
$361.10$453.00
$167.40$210.00
Subject to factory lead times
$598.64$751.00
$271.82$341.00
Subject to factory lead times
$271.82$341.00
Subject to factory lead times
$543.64$682.00
Subject to factory lead times
$403.35$506.00
$94.86$119.00
Subject to factory lead times
$94.86$119.00
Subject to factory lead times
$189.72$238.00
Subject to factory lead times
$121.96$153.00
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times
Subject to factory lead times