Alicat P Series Pressure Gauge - Manual (Page 57)

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Technical Data for PCD & PCRD Dual Valve Pressure Controllers
Mechanical Specifications
Standard Specifications (Contact Alicat for available options.)
Performance PCD Controllers PCRD Controllers
Full scale pressure < 2” H2O Accuracy Consult Factory
Full scale pressure ≥ 2” H2O Standard Accuracy ± 0.25%
Full scale pressure ≥ 2” H2O
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 PCD Controllers PCRD 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
302 & 303 Stainless Steel, Viton®, Silicone RTV, Brass, 400 Series Stainless Steel,
Silicon, Glass. If your application demands a different material, please contact Alicat.
1. For aggressive gases, please see our PCS and PCRS-Series pressure controllers. For use with water or other
liquids please contact Alicat
Communication / Power PCD Controllers PCRD 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
PCD 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
PCD and PCRD Controllers
-15 psig to 0 psig
2 inH
2
OD 2 inH
2
OG
4 inH
2
OD 4 inH
2
OG
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.