Circuit Board Level Controllers
Last Updated: April 1, 2025
Description
Circuit Board Level Controllers are devices that manage and regulate the levels of liquids or solids within a process. These controllers are typically integrated into a printed circuit board (PCB) and are designed to monitor and control the level variables by sending electrical signals to actuate various components such as motors, pumps, and valves.
Working Principle
Circuit Board Level Controllers operate by receiving input signals from sensors that detect the level of a substance within a container or system. These inputs are processed by the controller, which then sends output signals to control devices like pumps or valves to maintain the desired level. The controllers can be programmed to respond to specific conditions, ensuring precise control over the process. This functionality is crucial for maintaining system stability and efficiency, as it helps prevent overflow, underflow, and other level-related issues.
Applications
Circuit Board Level Controllers are used in a variety of applications where precise level control is necessary. For example, they are commonly found in industrial processes that involve liquid storage tanks, where maintaining a specific liquid level is critical for operational efficiency. They are also used in water treatment facilities to control the levels of chemicals and water, ensuring proper treatment processes. Additionally, these controllers are employed in the food and beverage industry to manage the levels of ingredients in mixing and processing tanks.
Advantages over other Level Controllers
One of the primary advantages of Circuit Board Level Controllers is their integration into a PCB, which allows for compact and efficient design. This integration can lead to reduced space requirements and potentially lower costs compared to standalone controllers. Additionally, the ability to program these controllers for specific conditions provides greater flexibility and precision in level management, which can be advantageous over more basic control systems that may not offer the same level of customization.
Limitations
A limitation of Circuit Board Level Controllers is their susceptibility to electromagnetic interference (EMI), which can disrupt the signals and lead to control unit dropouts. This can result in downtime for the entire system, particularly in environments with high levels of electrical noise. Additionally, the complexity of programming and integrating these controllers into existing systems may require specialized knowledge and expertise.
Considerations
When considering Circuit Board Level Controllers, it is important to evaluate the initial costs, which can vary depending on the complexity and features of the controller. Operating expenses should also be considered, as these can be influenced by the energy efficiency of the controller and the maintenance requirements. Durability and accuracy are critical factors, as they impact the long-term reliability and performance of the controller. Finally, replacement and maintenance costs should be assessed, as these can affect the overall cost of ownership and system downtime.
from Gems Sensors & Controls
Solid State Reliability. DC Power Supply. Low Maintenance. Easy to Install and Replace. Low Volt / Low Amp. Protective Housing. Model DC controls are designed for applications where only direct current power is available. DC units can be used as differential level controls or single point alarm... [See More]
- Form Factor: Board
- Media: Liquid
- Control Signal: Switched Output
from Florite International, Inc.
The Model N920 is an embedded version of the 900 Series instrument incorporating user selectable digital and analog inputs, as well as analog and relay outputs. Other Model N920 features include .005% high accuracy PID, batch, and dose control functions. Additionally, the Model N920 encompasses rate... [See More]
- Form Factor: Board; Chassis; PCB Mount
- Control: Limit
- Controller Type: Batch; Flow
- Features: PLC; Datalogger; Is a Chart Recorder; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
from Gems Sensors & Controls
Solid State Reliability. No Contactors. 11 or 19K Ohms/cm Sensitivity. Direct or Inverse Modes. LED Indicator. Spade Terminals for Easy Installation. CSA Approved. U.L. "Motor Control". Series 19MR controls are the ideal choice where pump up or pump down service is necessary. This control eliminates... [See More]
- Form Factor: Board
- Media: Liquid
- Control Signal: Switched Output
from Gems Sensors & Controls
Solid State Reliability. Up to 100K Ohm/cm Sensitivity. Internal Surge Suppression. Single Level or Differential Service. Series 27 intrinsically safe controls have SPDT output contacts and are UL approved for use in Class I, Groups A, B, C & D; Class II, Groups E, F & G; and Class III... [See More]
- Form Factor: Board
- Media: Liquid
- Control Signal: Switched Output
from Gems Sensors & Controls
Solid State Reliability. 0-50K Ohm/cm Sensitivity. Alarm Contacts for Audible and Visual Alarms. 4 Channel Relay. Removable Terminal Strips. Inverse or Direct Acting Field Selectable. U.L. Recognized. Series 47 intrinsically safe controls offer complete alarm panel control in a single package. [See More]
- Form Factor: Board
- Media: Liquid
- Control Signal: Switched Output
from Gems Sensors & Controls
Open Circuit Board Design or. Convenient Plug-in Design. UL Recognized Motor Control. Power Outage Time Delay Available on. Series A. Series A has an open circuit board design. Series AM provides convenient plug-in design, either octal socket or DIN mount. The housing carries no NEMA rating. [See More]
- Form Factor: Board
- Media: Liquid
- Control Signal: Switched Output
from Gems Sensors & Controls
Solid State Reliability. Compact Size. Spade Terminals for Easy Wiring. Manual Reset (optional). Power Outage Feature (optional). U.L. "Limit Control". Dual function Series DF models are designed to control two independent level functions: one single-level control operation and one... [See More]
- Form Factor: Board
- Control Signal: Switched Output
- Control: Limit
- Media: Liquid
from Gems Sensors & Controls
Internal Mounting. Meets CSD1 Requirements. U.L. Recognized "Limit Control". Compact Size. Options Include: Manual Reset, Power Outage Feature, and Test Feature. Gems LWC-700 is designed for boiler low-water cutoff protection, and offers the most compact internally mounting package for boiler and... [See More]
- Form Factor: Board
- Control Signal: Switched Output
- Control: Limit
- Media: Liquid