ControlByWeb
(435) 750-5999

Our controllers and level sensors work hand-in-hand to provide a complete level monitoring and control solution for liquids and solids. Our system is accessible on local or remote networks.

Reliable Systems for Local & Remote Level Monitoring & Control

We make level monitoring and control, whether local or remote, reliable and affordable with sensors and controllers that last for years with little to no maintenance. Our industrial-grade hardware and easy-to-use programmable interface enables municipalities, growers, systems integrators, and more to quickly deploy accurate and durable control systems almost anywhere.

Monitor liquid levels and solids with four different types of monitoring technologies: non-guided radar, ultrasonic, float, and pressure. Whether you have an IBC tank, tote, silo, or chemical injection tank, ControlByWeb has the best level monitoring system for your application.

  Features

  • Remote monitoring multiple tanks
  • Email & text alerts for user-defined thresholds
  • View and send logged data
  • No code on-device logic
  • API for sending data to other control systems
  • No cloud required

Best Sellers

Modbus Master Controler

X-410
X-404

Up to 16 Sensors Modbus Up to 32 Devices/Sensors

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Analog Input Module

XW-110
X-418

8 Analog Inputs

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Analog Inputs & I/O

X-405
X-420

4 Analog Inputs, 2 Digital I/O, 1 Wire Bus

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Mid-Range Ultrasonic

Temperature Sensor
IRU-2423

4-20 mA
25 Feet Range

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Mid-Range Ultrasonic

XW-110
MNU-2424

Modbus RS-485
25 Feet Range

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Pressure Sensors

X-405
Pressure

Pressure Sensors for ControlByWeb Products

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Float Sensors

X-405
Float

Float Sensors for ControlByWeb Products

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Need help finding the right solution?

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Sensor Types and Applications

Ultrasonic

Ultrasonic sensors are ideal for liquid level measurement with few application challenges and where budget is a priority. Ultrasonics use sound waves to detect a level surface and work well with reflective liquids like water. Distance to the surface is based on time of flight whereas the speed of sound is a known variable.

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Float

Float sensors are for liquid level measurement and typically use magnets in the float and in the float guide or stem to determine the level surface. Our float level sensors are designed for use in hazardous locations and work great in oil and gas applications. They're even capable of interface level measurement with dual floats.

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Non-Guided Radar

Radar sensors use microwaves at varying frequencies. This is another time of flight measurement technology as the speed of the microwaves through the air is known. Radar sensors are better in difficult liquid level monitoring applications and is the clear choice for solids.

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Pressure

Submersible pressure transducers are for liquids and do well in deep wells where sound and radar waves cannot reach. They're common in water wells and lift stations. They work by measuring the head pressure above the sensor and are scaled by the density of the liquid.

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Common Level Problems


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Inaccurate Sensors

Level sensors can often struggle with process conditions, scaling issues, and physical container characteristics that render measurements inaccurate.

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Difficult Controller Programming

Controllers traditionally rely heavily on programming languages such as ladder logic to build control logic, often requiring paid help from specialists.

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Poor Scalability

Control systems tend to work well in the small scale, or the large scale. Few work well in the middle, meaning you have to spend way more than you need for basic functionality.

ControlByWeb Monitoring Solutions


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Reliable Sensors

Our diverse sensor lineup means we have exactly what you need almost every time, making it easy to overcome difficult process conditions and media characteristics.

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Easy Task Builder

Our Task Builder lets you set up complex control scenarios with a few clicks of the mouse. While we support scripting, no code is required to program your level controller.

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Right Solution

ControlByWeb I/O devices scale nicely to handle systems small, medium, and large. We handle small and medium control effortless and pair nicely with larger control systems.

Typical Applications

Tank Level Monitoring System

Tank level monitoring presents many challenges with a variety of liquids, solids, mounting options, and different shapes and sizes of containers. Our level sensors give you the flexibility you need to measure accurately and our controllers let you turn data into action. Our tank monitoring systems make your job easier.

Pump & Valve Control

Controlling levels with pumps and valves requires several inputs, including level and pressure. Our programmable controllers feature a broad range of I/O capabilities with easy task-building firmware so you can carefully control your process and ensure maximum uptime for your equipment.

Water Level Monitoring

Our solutions are perfect for monitoring water, whether in a tank, well, channel, lake or river. Ultrasonic and radar sensors excel at water level monitoring, and our edge programmable logic controllers let you manage your water with ease. We work provide solutions for such industries as Water/Wastewater, Agriculture, Chemical, Oil and Gas, and more.

Remote Monitoring & Control

Pair a level sensor with a ControlByWeb controller to remotely monitor liquid levels, control pumps and valves to maintain tank levels, view log files, and send tank level information to existing monitoring systems. Program the device with our intuitive, built-in Task Builder and let the device control all logic, without needing to rely on any cloud services.

Tank Level Alarms

Our I/O controllers can be programmed for both local and remote alarms. Email alarms can be programmed with logic conditions to prevent false alarms or to fine tune specific event alerts. High and low alarms can be programmed to sound a local alert, turn on a light, or notify staff via email.

Redundant Tank Monitoring

ControlByWeb devices are uniquely affordable among programmable logic controllers. This makes adding a layer of redundancy both easy and inexpensive. Whether or pump control, valve control, or simple email alerts, we excel at providing a reliable redundant system.

How our Customers Use ControlByWeb™ Products

Simple Stand-Alone Device

A single ControlByWeb device can operate on its own as long as it has an IP network for communication. Data can easily be accessed on a local network or via the Internet. Ideal for remotely monitoring a single site or multiple facilities.

Stand-Alone I/O Device

Integrated in Control Systems

Integrate ControlByWeb devices throughout your advanced control system using Modbus TCP/IP, XML, SNMP and more. ControlByWeb devices act as remote terminal units (RTUs) in industrial control systems of all sizes and complexities.

Remote Terminal Unit

Complete Control System

Create a fully functional control system using ControlByWeb I/O devices and sensors. Our X-400 and X-600M with expandable I/O and programmable logic are ideal for a control system you can monitor & control locally or remotely.

I/O Control System

Frequently Asked Questions

Answer

Level monitoring is the process of using technology to monitor the liquid or solid levels and volumes in industrial tanks, silos or totes. Typically a sensor is installed in a tank or container and the measurement data from the sensor is transmitted to a local display or to a network device where levels can be monitored remotely. This is particularly useful in situations where tanks may contain liquids, such as oil, fuel, or chemicals, which can be unsafe to manually check using traditional methods. Level monitoring is also useful in applications where a tank may be difficult to reach or access, and a sensor need only be installed once and then monitored locally on a display or remotely via a web browser.

Answer

Remote tank level monitoring works by connecting a level monitoring sensor to a network controller capable of interpreting measurement data from the sensor and making that data available via a network connection. Sensor data can either be accessed on a local network or remotely, depending on the desired configuration. Many network controller manufacturers require a subscription to a cloud service, however ControlByWeb controllers can be accessed directly over the network with no need for a cloud.

Answer

There are three main types of sensors that can be used for tank level monitoring: ultrasonic sensors, float switches, and pressure transducers. Choosing the right level sensor for your particular application comes down to several key factors. The first point to consider is what kind of liquid you will be measuring. Most sensors will work well in clean liquids, however if your liquid is dirty or corrosive then a float switch or pressure transducer would be better suited for the job. The second thing to consider is where the tank can be accessed to install the sensor. If the top of the tank is easily accessible then most sensors will do. If the top is not easily accessed then a pressure transducer could be a good option since it can be installed in tank vents or head pressure. Another consideration is the size of the tank. Each type of level sensor has a range of measurement that needs to be considered before choosing a sensor. The easiest way to determine which sensor will work best is to talk to one of our level monitoring experts and they can guide you through the decision-making process.

Answer

Many of our ControlByWeb devices with analog or modbus inputs work best for level monitoring. We have developed our X-404 controller specifically for level monitoring applications. The X-404 powers and communicates with the sensors via Modbus RS-485 which allows up to 32 sensors to be daisy-chained together and connected to the X-404 for the easiest installation possible for multiple tanks. The X-404 has a built-in web server with email/text notifications, logging, and an advanced task builder that allows logic to run locally on the device for controlling pumps to help maintain tank levels. Learn More

Answer

There are two types of level monitoring, point level and continuous level. Point level sensors simply measure a single preset level in the tank. Point level monitoring is often used for an overflow line on a tank to trigger a high alarm. It can also be used to trigger a low alarm. Continuous level sensors measure the level in a tank within a given range, according to the sensor specifications. Continuous level monitoring is more robust and is useful in applications where the level of the tank needs to be measured at any given time. It is also very effective in a level management system to control pumps, valves and alarms when liquids reach specified levels within a tank.

Answer

Many controllers require a cloud service with a monthly subscription to connect and access level data. However, with ControlByWeb products, like the X-404, this measurement data can be accessed directly on the device without any monthly subscriptions. The X-404 has a built-in web server that can be accessed via port forwarding on your network router, eliminating the need for a cloud server.

Six Reasons Why You Should Choose ControlByWeb®


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Industrial-Grade Reliability Is Our First Priority

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Scalable Solutions for any Industrial Application

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Cost Effective, Self-Contained I/O Devices

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Flexible Communications and Compatibility

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Responsive Support and Thorough Documentation

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Founded in 1999 and Manufactured in the USA

FREE LEVEL MONITORING AND CONTROL CONSULTATION


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Level Monitoring & Control Products

  • FILTER
  • 0-10ft Range
  • 10-30ft Range
  • 30-50ft Range
  • 50ft Plus Range
  • Float
  • Ultrasonic
  • Pressure
  • Oil & Gas
  • Water or Wastewater
  • Chemicals
  • Modbus

Level Sensors

In Stock

PART NUMBER

IRU-2423-C6-B81

PRICE

$651.39

DESCRIPTION

Ultrasonic Level Sensor, 25 Feet Range, 2 inch NPT, 4-20mA, 6' Cable (call for custom lengths)

Requires RST-3002 for setup.

Quantity:

Ships Within: 10-15 Business Days

In Stock

PART NUMBER

IRU-3433-C6-B81

PRICE

$881.61

DESCRIPTION

Ultrasonic Level Sensor, 50 Feet Range, 3 inch NPT, 4-20mA, 6' Cable (call for custom lengths)

Requires RST-3002 for setup.

Quantity:

Ships Within: 10-15 Business Days

In Stock

PART NUMBER

MNU-2424-C6-B81

PRICE

$546.36

DESCRIPTION

Ultrasonic Level Sensor, 25 Feet Range, 2 inch NPT, Modbus RS-485, 6' Cable (call for custom lengths)

Quantity:

Ships Within: 10-15 Business Days

In Stock

PART NUMBER

MNU-3434-C6-B81

PRICE

$655.64

DESCRIPTION

Ultrasonic Level Sensor, 40 Feet Range, 3 inch NPT, Modbus RS-485, 6' Cable (call for custom lengths)

Quantity:

Ships Within: 10-15 Business Days

In Stock

PART NUMBER

IRU-5413-C6-B81

PRICE

$582.43

DESCRIPTION

Ultrasonic Level Sensor, 4-79 inch Range, 1 inch NPT, 4-20mA, 6' Cable (call for custom lengths)

Requires RST-3002 for setup.

Quantity:

Ships Within: 10-15 Business Days

In Stock

PART NUMBER

PT-500

PRICE

$699.95

DESCRIPTION

Submersible pressure transducer for long-range level monitoring in extreme conditions

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

In Stock

PART NUMBER

MPX

PRICE

$1250.00

DESCRIPTION

Magnetostrictive float sensor for robust level monitoring applications.

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

Level Monitoring Modules

ControlByWeb
(435) 750-5999

X-404™ | Modbus Master Controller

Part number(s): X-404-I

OUTPUTS

-

INPUTS

Modbus Sensors: Up to 32 modbus devices/sensors

1-Wire Bus: Up to 16 temperature/humidity sensors

FEATURES

Email Alerts

Logging

Scheduling

BASIC Interpreter

Peer-to-peer

PROTOCOLS

HTTP, HTTPS, SSL, XML, Modbus TCP/IP, SNMP V1,2C,V3, SMTP

PRICE

$295.95

Please contact our sales department for quantity discounts.

Quantity:
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OUTPUTS

-

INPUTS

Analog Inputs: 8

Input Range: ±1.28V, ±2.56V, ±5.12V, ±10.24V, 4-20mA (No external resistors required.)

FEATURES

Email Alerts

Logging

Scheduling

BASIC Interpreter

Peer-to-peer

PROTOCOLS

HTTP, HTTPS, SSL, XML, Modbus TCP/IP, SNMP V1,2C,V3 protocols

PRICE

$274.95

Select Model Quantity:
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OUTPUTS

DIGITAL I/O: 2

Configurable as relays/digital inputs

INPUTS

Digital Inputs: (See Outputs)

Analog Inputs: 4

Input Range: ±1.28V, ±2.56V, ±5.12V, ±10.24V, 4-20mA, (No external resistors required.)

1-Wire Bus: 16

Temperature/Humidity

Frequency Input: 1

0-20 kHz Frequency

FEATURES

Email Alerts

Logging

Scheduling

BASIC Interpreter

Counters: Inputs 1-2

Peer-to-peer

Configurable Digital I/O

PROTOCOLS

HTTP, HTTPS, SSL, XML, Modbus TCP/IP, SNMP, SMTP, Remote Services

Select Model Quantity:
MORE INFORMATION

Level Monitoring Accessories

In Stock

PART NUMBER

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

PRICE

$398.90

DESCRIPTION

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

Quantity:

Ships Within: 15 Business Days

In Stock

PART NUMBER

LPD-000001-C6-0-0-B81

PRICE

$240.93

DESCRIPTION

4-20 mA loop power display, 6 ' Cable.
Only compatible with IRU ultrasonic sensors.

Quantity:

Ships Within: 10-15 Business Days

In Stock

PART NUMBER

RST-3002

PRICE

$115.64

DESCRIPTION

IRU ultrasonic sensors programming module

Includes: USB Cable and Software

Quantity:

Ships Within: 10-15 Business Days

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