Alicat P Series Pressure Gauge - Manual (Page 65)

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Technical Data for PCDS & PCRDS Dual Valve Pressure Controllers
Mechanical Specifications
Standard Specifications (Contact Alicat for available options.)
Performance PCDS Controllers PCRDS Controllers
Full scale pressure Standard Accuracy ± 0.25%
Full scale pressure High Accuracy Option ± 0.125%
Repeatability ± 0.08% Full Scale
Zero Shift and Span Shift 0.02% Full Scale / ºCelsius
Operating Range / Turndown Ratio 0.5% to 100% Full Scale / 200:1 Turndown
Excess Pressure 102.4% FS Controllable
Burst Pressure 3 X Full Scale
Typical Response Time 1 100 ms (Adjustable)
Warm-up Time < 1 Second
1. Volumes, feed pressures, exhaust pressures and line sizing will determine the limits of response times.
Operating Conditions PCDS Controllers PCRDS Controllers
Gas Compatibility Compatible with all non-corrosive gases 1
Operating Temperature -10 to +50 ºCelsius
Common Mode Pressure
(Differential Pressure Units Only)
150 psig
Mounting Attitude Sensitivity None Mount with valve cylinder vertical & upright
Valve Type Normally Closed
Ingress Protection IP40
Wetted Materials
316LSS, 303SS, 430FRSS, FFKM (Kalrez) standard; Viton, EPDM, Buna,
Neoprene as needed for some gases. If your application demands a different
material, please contact Alicat.
1. In addition to all non-corrosive gases, PC & PCR controllers are configured to operate with the following
aggressive gases: Ammonia, Hydrogen Sulfide, Nitric Oxide, Nitrogen Dioxide, Nitrogen Triflouride, Propylene.
The following gases are available upon request: Refrigerant gases to 100% (Refrigerant gases my require
custom seals, consult Alicat.) Other gases to 1000 ppm in an inert carrier. If your application requires another gas
or gas mixture, please contact Alicat. PCS and PCRS devices may be used with chemically compatible liquids.
Please contact Alicat for technical assistance if your application involves fluids.
Communication / Power PCDS Controllers PCRDS Controllers
Monochrome LCD or Color TFT Display
with integrated touchpad
Displays Pressure
Digital Output Signal 1 Options RS-232 Serial / RS-485 Serial / PROFIBUS 3
Analog Output Signal 2 Options 0-5 Vdc / 1-5 Vdc / 0-10 Vdc / 4-20 mA
Optional Secondary Analog Output Signal 2 0-5 Vdc / 1-5 Vdc / 0-10 Vdc / 4-20 mA
Electrical Connection Options 8 Pin Mini-DIN / 9-pin D-sub (DB9) / 15-pin D-sub (DB15) / 6 pin locking
Supply Voltage 12-30 Vdc (15-30 Vdc for 4-20 mA outputs) 24-30 Vdc
Supply Current 0.250 Amp 0.750 Amp
1. The Digital Output Signal communicates Pressure
2. The Analog Output Signal and Optional Secondary Analog Output Signal communicate Pressure
3. If selecting PROFIBUS, no analog signal is available. PROFIBUS units do not have the display. See
PROFIBUS specifications for PROFIBUS supply voltages and currents. ( www.alicat.com/profibus)
Dual Valve Pressure Controllers Mechanical Dimensions Process Connections 1
PCDS All Standard Ranges 4.1”H x 4.8”W x 1.1”D 1/8” NPT Female
PCRD All Standard Ranges 5.5”H x 10.6”W x 2.3”D 3/4” NPT Female
1. Compatible with Swagelok® tube, Parker®, face seal, push connect and compression adapter fittings. VCR and
SAE connections upon request.
Select One Unit of Measure when Ordering
PSIA inHG Atm
PSIG inH
2
O Torr
mmHG mBar kPa
Standard Available Ranges
PCDS and PCRDS Controllers
-15 psig to 0 psig
1 psid 1 psig
5 psid 5 psig
15 psid 15 psig 15 psia
30 psid 30 psig 30 psia
100 psid 100 psig 100 psia
150 psid 300 psig 300 psia
500 psig* 500 psia*
*Not available on PCRD. Other ranges available. Please contact Alicat.