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Alicat Scientific
Alicat Scientific PCD Series Dual-Valve Pressure Controllers
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Alicat PCD: dual-valve pressure controllers; 0.07–3000 PSI; ±0.25% FS; 10,000:1. RFQ.
Download datasheet PDF
RFQ cart holds BOM lines only. Submit for engineering quote.
Key parameters
Accuracy
±0.25% of full scale (high-accuracy option ±0.125% FS)
Supply
PCD/PCDS/PCP: 12–24 Vdc, 250 mA; PCRD/PCRDS: 24 Vdc, 1 A
Pressure Range
0.07–3000 PSI full scale (absolute, gauge, or differential)
Repeatability
±0.08% of full scale (2σ)
Control Range
0.01–100% of full scale (10,000:1 turndown)
Operating Temperature
−10 to 60°C (ambient and gas)
Fits dual-valve closed-volume pressure control where you need an Alicat Scientific PCD Series. Dual-valve controllers spanning 0.07–3000 PSI full scale (absolute, gauge or differential), accuracy ±0.25% FS (high-accuracy ±0.125% FS), repeatability ±0.08% FS, control range 0.01–100% FS (10,000:1), and ambient/gas temperature −10 to 60 °C.
Key advantages
- Architecture — Dual-valve PCD
- Range — 0.07–3000 PSI FS
- Accuracy — ±0.25% FS (std)
- Control — 10,000:1
- Temp — −10 to 60 °C
Typical applications
- Closed-volume pressure control.
- Dual-valve lab loops.
- Gauge/abs/diff set-points.
Selection guide
- Range / mode
- Valve sizing
- Comms
Common mistakes
- Single-valve expectation.
- Overrange.
- Temp outside band.
When to RFQ / what to tell us
- Range/mode/options.
- Quantity, ship-to.
Request a Quote · Get selection help
Specs
| Spec | Value |
|---|---|
| SKU | 48592 |
| Brand | Alicat Scientific |
| Model | PCD Series |
| Product type | Pressure Controller |
| Pressure range | 0.07–3000 PSI full scale (absolute, gauge, or differential) |
| Accuracy | ±0.25% of full scale (high-accuracy option ±0.125% FS) |
| Repeatability | ±0.08% of full scale (2σ) |
| Control range | 0.01–100% of full scale (10,000:1 turndown) |
| Operating temperature | −10 to 60°C (ambient and gas) |
Documents
FAQ
Q: Dual-valve? A: Yes, PCD architecture.
Q: Turndown? A: 10,000:1.
Q: What should I send for a quote? A: Range/mode/options, quantity, ship-to.
Links
| Parameter | Value |
|---|---|
| Accuracy | ±0.25% of full scale (high-accuracy option ±0.125% FS) |
| Supply | PCD/PCDS/PCP: 12–24 Vdc, 250 mA; PCRD/PCRDS: 24 Vdc, 1 A |
| Pressure Range | 0.07–3000 PSI full scale (absolute, gauge, or differential) |
| Repeatability | ±0.08% of full scale (2σ) |
| Control Range | 0.01–100% of full scale (10,000:1 turndown) |
| Operating Temperature | −10 to 60°C (ambient and gas) |
| Control Response Time | As fast as 30 ms (user-adjustable; flow/valve dependent) |
| Communications | RS-232/Modbus RTU default; RS-485, Modbus TCP/IP, DeviceNet, EtherCAT, EtherNet/IP, Profibus, PROFINET, IO-Link options |
| Analog Io | 4–20 mA, 0–5 Vdc, 1–5 Vdc, 0–10 Vdc |
| Ingress Protection | IP40 |