ControlByWeb
1-435-750-5999

Level Monitoring | Float Sensors


Real-time level monitoring over an IP network using a standard web browser!

Float Sensors

Monitor liquid levels with a float sensor and a ControlByWeb™ module. Receive text/email alerts when a user-specified level is reached. Log and graph a tank’s level data over time.

How do Float Sensors Work

Magnetostrictive liquid level sensors consist of a float that moves up and down a stem, or rod. The float contains a permanent magnet, and the stem houses a wire waveguide that creates a magnetic field, making it possible to detect the floats position on the stem.

An electrical pulse travels down the waveguide, magnetizing it. When the pulse meets the magnetic field from the float, a vibration, also called a strain pulse, travels back to the sensor housing.

The Float sensor then measures the difference in time between the initial pulse, and the strain pulse, giving it an accurate and continuous reading of the tank's current level.

The Sensor uses Float Waves to monitor tank levels

Liquid Types

Float Sensors work well with clean and dirty liquids, as they are customizable for almost any application.

Clean Liquid
Dirty Liquid
Corrosives

Float Sensor Benefits

  • Easy to install.
  • Provide the most reliable and accurate method of level monitoring.

Sensor Ranges

  • MPX float sensors are customizable for monitoring up to 32 ft with multiple float sensors.

Sensor Accuracy

  • Sensors are accurate within 0.05% of its detected range.

Sensor Output

Modbus RS-485

Easily configure sensor data using the X-404 Modbus Master Controller. No voltage scaling required!

4-20mA

For exisiting systems that require 4-20mA, connect the sensor to one of our compatible devices (X-418, X-420, X-22s).

Recommended Installation

Top of Tank

Carefully lower the MPX Float Sensor into the tank, then secure the sensor to the tank. If the floats don't fit through the mounting hole, remove the floats and connect the floats from the inside of the tank after the stem has been lowered through the mounting hole.

The Sensor uses Float Waves to monitor tank levels

 Sensor Specifications

Performance
  • Max Length: Up to 32ft. (175.25m)
  • Accuracy: Greater of ±0.04 in. (±1mm)
    or 0.05% of full range
  • Resolution: Modbus ±0.04 in. (±1mm)
    4-20 mA: 14 bit DAC
  • Operating Temp: -40°F to 180°F (-40°C to 80°C)
Outputs
  • Modbus RTU (RS-485) with Temperature output
  • 4-20mA, 2-Wire
  • Dual 4-20mA (Loop-Powered 3 wire)
Electrical
  • External Power: 12-24 VDC
Approvals
  • Protection Rating: NEMA 4X, IP65
  • Certifications: Class 1 Division 1 Groups C & D, Class 1 Zone 1, Class 1 Zone 2
Internet Connectivity
  • NO CLOUD NEEDED! Remote connection available with ControlByWeb devices (see below)
Programming
  • Automatic programming via ControlByWeb device
Sensor Materials
  • Housing: Cast aluminium, epoxy coated
  • Cable Length: Customizable
  • Dual-Level: Monitor two liquid levels with a single sensor
Environmental
  • Operating Temp: -40°C to 85°C
Installation
  • Top of tank | Simple to install and program
MPX Float Sensor with Dual Floats

MPX Float Sensor

For Part Numbers & Pricing
1-435-750-5999

MPX Float Sensor + X-404 Modbus Master Controller


Web Enabled

All logic occurs on device, no cloud necessary.

Email/Text Alerts

Customizable email/text alerts based on sensor states.

Web Enabled

Monitor sensor status using a standard web browser.

Web Enabled

Up to 32 modbus devices/sensors.

Web Enabled

Easily create custom logic, no scripting neccessary.

Logging and Graphing

Log and graph sensor states over time.


Reliable and accurate level monitoring with a Pressure Sensor

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Remote Monitoring

Each float sensor can be connected to a ControlByWeb module to remotely monitor liquid levels in real-time using a standard web browser or mobile device. Liquid levels can be presented to the user as a simple liquid height measurement, or the module can be configured to calculate the volume of liquid used or the volume remaining in the tank and present that to the user. No special software required.

Control tank pump with peer-2-peer communication

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Remote Control & Monitoring

In addition to simple remote monitoring, ControlByWeb modules are fully programmable and provide custom control capabilities as well. For example, you can connect a pump to a relay on a ControlByWeb module and remotely run the pump manually, or configure the pump to automatically run if the level gets too low.

Level Monitoring in Hazardous Environments


Warning: Use of these products to monitor tank levels of potentially explosive liquids or substances (such as gasoline), requires strict adherence to local safety laws and regulations. ControlByWeb modules (such as the X-404, X-420, etc) are NOT designed to be intrinsically safe and must be installed with both physical and electrical safety barriers. Installation should only be performed by qualified individuals and companies who understand the safety requirements. Please refer to sensor installation manuals and consult local safety regulations for more information.

Intrinsically Safe - Modbus Monitoring

Control tank pump with peer-2-peer communication

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Intrinsically Safe - 4-20mA Monitoring

Control tank pump with peer-2-peer communication

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Common Industries


Low cost tank level monitoring

Oil and Gas

The MPX can be custom ordered to be chemically resistant, making it optimal for monitoring oil and gasoline.

Leachate tank monitoring

Mud Tanks

Oil drilling uses powerful pumps to move mud out of the way of the drill. The MPX's sturdy design makes it ideal for the violent and turbulent conditions of a mud tank.

Waste water management

Tank level monitoring

In any application, the MPX provides the most reliable and accurate method of level monitoring.


Frequently Asked Questions

Answer

The MPX compares very well to an ultrasonic sensor's resolution and accuracy. Its resolution is ±4mm and it's accuracy is 0.05% of full scale, making it the most accurate monitoring solution. Ultrasonic sensors are accurate to 0.25% full scale.

Answer

Yes. The MPX continuous float level transmitter can measure two level simultaneously. The MPX can be custom ordered to include two floats, one that will float on the top of the oil, and the other that will float at the oil/water interface.

Answer

While floats getting stuck is a possibility, many different factors prevent this from happening. Some of these factors include the weight of the float, and the space between the float and the stem. We do not recommend using this product to monitor sticky liquids or materials that cause build-up, as these types of applications can lead to float sticking.

Float Sensors

MPX Float Sensor with Dual Floats

MPX Float Sensor

In Stock

DESCRIPTION

Magnetostrictive float sensor for robust level monitoring applications.

PRICE

Custom Orders

Starts at $1250.00

For Part Numbers & Pricing
1-435-750-5999

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Compatible ControlByWeb Controllers

X-404

X-404 Modbus Master Controller

In Stock

PART NUMBER

X-404-I

SENSORS

# of Sensors: Connect up to 32

Sensor Type: Modbus RS-485

FEATURES

  • Daisy-Chain modbus sensors
  • No voltage scaling
  • Logging
  • BASIC Interpreter
  • Email Alerts
  • Peer-to-peer

PRICE

$295.95

Quantity:

Local Display

MND Modbus Network Display

MND Modbus Display with Aluminum Housing

In Stock

PART NUMBER

MND-202201-2-0-2-0000-B81

Description

Local display for up to 10 sensors as a master, slave, or power source on any Modbus network.

PRICE

$365.00

Quantity:

Power Supplies

PART NUMBER

2868648

DESCRIPTION

Output: 24 V DC±1%, 1.75 Amp

Input Voltage: 100-240V AC

Input Frequency: 45-65 Hz

PRICE

$74.24

Quantity:

Power Supply | 12VDC

In Stock

PART NUMBER

PS12VW1.5-B

DESCRIPTION

Regulated, 12V DC, 1.5Amp (100-240V AC Input)

PRICE

$19.95

Quantity:
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