Catalog excerpts
Digital Absolute or Gauge Pressure Control for Closed Systems alicat.com/pcd Series Overview Alicat Scientific PCD-Series digital pressure controllers precisely and rapidly control absolute or gauge pressure within closed systems via dual customized high-speed proportional control valves. This dual-valve design pairs a dedicated inlet valve with a dedicated exhaust valve, eliminating the need for bleed valves and costly continuous outgasing. Alicat’s PCD3-Series pressure controllers further incorporate a remote pressure sense port for maintenance of pressure in volumes that are distant from the controller. The PCD and PCD3 Series are also available with corrosion-resistant wetted materials and stainless steel flow bodies in the PCDS and PCD3S Series. All pressure instruments come with NIST-traceable calibration sheets. Alicat backs every PCD-Series pressure controller with generous customer support, including free technical phone support, prompt recalibration service and a lifetime warranty. Alicat PCD-Series pressure controllers feature large integrated displays with touchpads that enable setpoint control access and PID valve tuning. The PCD Series comes with both analog and RS-232 digital communications. Extensive customizations are available, including Class 1, Div 2 ATEX/CSA ratings for use in hazardous environments. Applications Alicat Scientific PCD-Series digital pressure gauges and controllers are used in a variety of industries, from leak checking and fuel cell testing to fluid dispensing and process control. A low 200:1 turndown ratio, available 0.125% accuracy, 0.2% full-scale repeatability and <100 ms control response times ensure optimal performance of pressure control processes. The PCD Series is available in full-scale absolute pressure ranges from 0-30 psia to 0-500 psia, and in fullscale gauge pressure ranges from 0-1 psig to 0-500 psig.
Open the catalog to page 1Technical Data for Alicat PCD and PCDR Dual Valve Pressure Controllers Alicat’s PCD and PCDR Dual Valve Pressure Controllers accurately and efficiently control pressure within a closed system with a minimum loss of expensive gases through the exhaust process. PCDR-Series pressure controllers are best for flows greater than 20 lpm. Standard Specifications (Contact Alicat for available options.) Performance PCDR Controllers Full scale pressure < 2” H2O Accuracy Consult Factory Full scale pressure ≥ 2” H2O Standard Accuracy Full scale pressure ≥ 2” H2O High Accuracy Option Zero Shift and Span...
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