![PCD-Series Pressure controller dual valve](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/PCD-Series.webp)
Absolute, Gauge, and Differential Pressure Controllers
![PCD-5PSIG-D_Web Dual valve pressure controller for absolute, gauge or differential pressure](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/PCD-5PSIG-D_Web.webp)
PCD Series
For most applications
- Non-corrosive gases
- 0.07 – 3000 PSI options
- 10 – 1000 TorrA vacuum options
Spec Sheets
- 0.07 – 3000 PSI
- Vacuum: 10 – 1000 TorrA
![PCD-5PSIG-D_AlicatScientific Dual-valve absolute or gauge pressure controllers from Alicat Scientific provide a variety of control options with high stability.](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/PCD-5PSIG-D_Web.webp)
PCDS Series
For corrosive fluids
![PCD-5PSIG-D_AlicatScientific Dual-valve absolute or gauge pressure controllers from Alicat Scientific provide a variety of control options with high stability.](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/PCD-5PSIG-D_Web.webp)
PCD3 Series
For remote pressure sensing
- Non-corrosive gases
- Measure pressure at any point and control flow at another
- Anti-corrosive options
Spec Sheets
![PCD-5PSIG-D_AlicatScientific Dual-valve absolute or gauge pressure controllers from Alicat Scientific provide a variety of control options with high stability.](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/PCD-5PSIG-D_Web.webp)
PCD-EXTSEN Series
For higher pressures
- Sensing ability of pressure transducer plus Alicat electronics and internal PID algorithm
- Precision control at a larger range
- Anti-corrosive options
Operating Manual
Build Options for Pressure Controllers
RS-485 Serial
Analog (4-20 mA, 0-10 Vdc, 0-5 Vdc, or 1-5 Vdc)
Modbus RTU (over RS-232 or RS-485)
Modbus TCP/IP
DeviceNet
EtherCAT
EtherNet/IP
PROFIBUS
PROFINET
Downloads
Manuals
PCD Series Operating ManualLatest – 10v firmware
PCD-EXTEN Series Operating Manual
PCD Series Operating ManualLegacy – 9v firmware (2021)
PCD Series Operating ManualLegacy – 8v firmware (2020)
Brochures
PCD Series Brochure
Software/Utilities
FlowVision 2.0
Serial Terminal Utility
Serial Address Dump Utility
Serial Port Troubleshooter Utility
Python Library
![CODA coriolis mass flow meter](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/Coda-Series.webp)
Liquid Flow
Liquid flow controllers use either Coriolis or laminar flow technology to accurately control liquid flows across a wide range of applications.
Gas Flow
Mass flow controllers provide precision measurement and ultra-fast control of 130+ different gases.
![](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/custom.webp)
Custom Instrumentation
Order mass flow controllers and meters custom-build to your specific application needs.
Technical Reference
Find guides, tutorials, pinout diagrams, and industrial protocol resources for your Alicat instrument.
Applications
![Aerospace SpaceX test mass flow controllers](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/04/Aerospace-SpaceX-test-1.webp)
Valve leak test stands for space exploration
![Plastic bag manufacturing requires pressure controllers for testing quality.](https://alicatprod.wpenginepowered.com/wp-content/uploads/2024/05/AdobeStock_788032809-resized-scaled.webp)
Inflating single-use bioreactor bags
Not sure which product is best for your application?
Service and Support
Whether it is time for your instrument’s annual recalibration or your instrument needs a repair or upgrade,
you can fill out the Service Request Form below, email us, call us, or start a live chat session to get the service process started.