DC Voltage Input Pressure Controllers
Description
DC Voltage Input Pressure Controllers are devices designed to regulate pressure by receiving a DC voltage input signal. They adjust the pressure of gases or liquids within a system to maintain a desired setpoint. These controllers are integral components in systems where precise pressure regulation is critical, ensuring that the pressure remains stable and within specified limits.
Working Principle
DC Voltage Input Pressure Controllers operate by using a feedback loop to maintain a set pressure level. The controller receives a DC voltage input, which corresponds to a desired pressure setpoint. It then compares the actual pressure, sensed by a pressure sensor, to this setpoint. If there is a discrepancy, the controller adjusts the pressure by modulating the flow of the fluid, either increasing or decreasing it to reach the desired pressure. This closed-loop system ensures precise control and stability, making these controllers useful in applications where maintaining exact pressure is crucial.
Applications
DC Voltage Input Pressure Controllers are used in a variety of specific applications. For example, they are employed in industrial processes where gases like oxygen, nitrogen, or hydrogen need to be regulated precisely. They are also used in laboratory settings for experiments requiring exact pressure conditions, and in HVAC systems to maintain optimal environmental conditions.
Advantages over other Pressure Controllers
One of the advantages of DC Voltage Input Pressure Controllers is their ability to provide precise control through a closed-loop system, which can be more accurate than open-loop systems. They also offer flexibility in terms of integration with digital systems, allowing for advanced control strategies such as PID control, which can enhance performance by reducing overshoot and improving response time.
Limitations
A limitation of DC Voltage Input Pressure Controllers is that they can be susceptible to noise and calibration drift, especially in analog systems. This can affect their accuracy and reliability over time, requiring regular maintenance and recalibration to ensure optimal performance.
Considerations
When selecting a DC Voltage Input Pressure Controller, several factors should be considered. Initial costs can vary depending on the complexity and features of the controller. Operating expenses may include energy consumption and maintenance costs, which can be influenced by the controller's efficiency and durability. Accuracy is another critical consideration, as it impacts the controller's ability to maintain the desired pressure setpoint. Finally, replacement and maintenance costs should be evaluated, as these can affect the long-term cost-effectiveness of the controller. Regular maintenance is essential to prevent calibration drift and ensure the controller continues to operate accurately and reliably.
from Dynisco
Features and Benefits. Auto-tuning control in a discrete 1/4 DIN package. Graphical/text LCD Display with color change LED backlight on alarm (red/green). Graphical trend view of process, alarms & events as standard. Easy to use Setup Wizard. Single loop control. Display and control of... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation; Strain Gauge, Thermocouple, or Linear
- Features: Rate Indication/ Control
- Control: Limit; Linear
- Form Factor: Chassis
from Gefran
Single-loop microprocessor controller, 96 x 96 (1/4 DIN) format, appropriate for processes with high variation speed. Thanks to its extended functions and configurable hardware and software, it provides high applicative flexibility in systems that control and monitor pressure, force, temperature,... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation; Resistive/ Potentiometer Inputs
- Control: Limit; PID
- Controller Type: Ratio Controller
- Form Factor: DIN
from PMC Engineering LLC
The DPM is a multipurpose, easy to use digital dual-input process meter ideal for level, flow rate, temperature transmitter, or pressure transmitter applications. Various math functions may be applied to the inputs including addition, difference, absolute difference, average, weighted average,... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation
- Features: Multi-Function; Datalogger; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
- Control: Limit
- Form Factor: Chassis
from Emerson Automation Solutions – TESCOM Regulators, Valves & Systems
TESCOM ™ ER3100 Series is the ER3000 controller and 44-4000 Series pressure reducing regulator integrated together. Inlet pressures are up to 4500 PSIG [310 bar] with two different outlet ranges of 400 PSIG and 900 PSIG [27.6 and 64 bar]. The ER3100 Series may be ordered with a Cv=0.7 or a... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation
- Form Factor: Chassis
- Control: Linear; PID
- Interface: Computer Programmable
from Bronkhorst USA
EL-PRESS Metal Sealed Pressure Meters / Controllers. Metal Seal Pressure Meters and Controllers of Bronkhorst High-Tech are characterized by their unique, patented metal-to-metal seal construction with excellent resealing capability. Furthermore they distinguish themselves by a high surface quality... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation
- Features: PC-Based
- Control: Linear
- Interface: Computer Programmable (optional feature)
from HORIBA Instruments, Inc.
As a dedicated power source these setting units convert the standard flow rate setting voltage input (+5 VDC) to the desired type of flow rate. The pressure setting signal is also input to the controller. SU-502 EA: analogue. SU 503 ED: digital. RoHS compliant [See More]
- Type: DC Voltage Inputs; Serial / Digital Input
- Interface: Switches; Digital Front Panel
- Form Factor: Stand-Alone
- Control Signal: Analog Voltage Output; Serial / Digital
from Florite International, Inc.
The 900 Series is an economic one loop microcomputer-based instrument incorporating user selectable digital and analog inputs, as well as analog and relay outputs. Other 900 Series features include .005% high accuracy PID, batch, and dose control functions. Additionally, the 900 Series encompasses... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation; Resistive/ Potentiometer Inputs; Switch / Relay Input; Frequency Inputs; Serial / Digital Input; Fieldbus / Network Input; Screw Terminal
- Control: Limit; Linear; Feedforward; PID
- Controller Type: Laboratory
- Features: PLC; Multi-Function; Datalogger; Is a Chart Recorder; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
from Nor-Cal Products, Inc. - The Vacuum Experts
IntellisysTM adaptive pressure controllers come in many different package sizes and with a variety of options to fit every application. A unique controller series exists for every valve type. For bench-top or laboratory use consider the touch screen LCD front panel version. [See More]
- Type: DC Voltage Inputs
- Interface: Network
- Control: Limit; PID
- Control Signal: Analog Voltage Output; Serial / Digital; Network / Fieldbus Output; Other; TTL
from First Sensor AG
Electronic pressure controllers are precision devices which maintain a pneumatic process pressure at a preset level using closed-loop control. These devices can be configured to control pressure or flow and replace mechanical control systems or mass flow controllers. Typical applications include... [See More]
- Type: DC Voltage Inputs
- Control Signal: Analog Voltage Output
- Form Factor: Stand-Alone
- Accuracy: 0.2
from PMC Engineering LLC
The PM is a multipurpose, easy to use digital process meter ideal for level, flow rate, temperature, or pressure transmitter applications. It accepts current and voltage signals. Three of the front panel buttons can be custom programmed for a specific operation. Dual Scale for Level Applications -... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation
- Features: Multi-Function; Datalogger; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
- Control: Limit
- Form Factor: Chassis
from Emerson Automation Solutions – TESCOM Regulators, Valves & Systems
Easy to automate, Easy to use, Easy on you!. Get repeatable, accurate and robust pressure control results, easy to use software with remote capabilities and detailed data acquisition. The ER5000 Series is a microprocessor based PID (Proportional, Integral, Derivative). controller that brings precise... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation; Serial / Digital Input; RS-485
- Form Factor: Chassis
- Control: Linear; PID
- Interface: Computer Programmable; Web
from Bronkhorst USA
EL-PRESS Digital Electronic Pressure Meters / Controllers. The EL-PRESS series digital electronic pressure transducers and controllers for gases and liquids have a well-proven compact thru-flow design. The instruments include a diaphragm type piezo-resistive pressure sensor for pressure... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation
- Features: PC-Based
- Control: Limit
- Interface: Computer Programmable (optional feature)
from Florite International, Inc.
The Florite Model 990X is an innovative, technically superior, high quality and reliable microcomputer-based controller suitable for any commercial or industrial application. The instruments user configurable screw-terminal channels enable any mix of up to eight inputs and or outputs regardless of... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation; Resistive/ Potentiometer Inputs; Switch / Relay Input; Frequency Inputs; Serial / Digital Input; Fieldbus / Network Input; Screw Terminal, DA15
- Control: Limit; Linear; Feedforward; PID
- Controller Type: Laboratory
- Features: PLC; Multi-Function; Datalogger; Is a Chart Recorder; Rate Indication/ Control; Totalizing (Length or Roll Diameter) Indication/ Control
from First Sensor AG
Electronic pressure controllers are precision devices which maintain a pneumatic process pressure at a preset level using closed-loop control. These devices can be configured to control pressure, vacuum or flow and replace mechanical control systems or mass flow controllers. Typical applications... [See More]
- Type: DC Voltage Inputs; Current Loop (Transmitter) Excitation (optional feature)
- Control Signal: Analog Voltage Output; Current Loop Output (optional feature)
- Form Factor: Stand-Alone
- Accuracy: 0.2