Precision Under Pressure: Why the Digi-Stem® DSP Is Redefining Process Monitoring

In the world of process control, accuracy isn’t optional—it’s everything. Whether you're monitoring critical systems in a chemical plant or ensuring safe operation on the factory floor, precision can mean the difference between smooth operation and costly downtime.

That’s why Palmer Wahl developed the Digi-Stem® Advanced Digital Process Pressure Gauge with Data Logger (DSP)—an industrial-grade innovation that brings unparalleled accuracy, robust durability, and smart data functionality into a single powerful tool.

Built to Endure. Engineered to Excel.

At the heart of the DSP is a commitment to reliability. Housed in a rugged stainless steel enclosure, this device is IP68 and NEMA 6P compliant, making it fully sealed against water and environmental ingress. Whether you're working in high-moisture environments or demanding outdoor conditions, the DSP is ready to perform.

The DSP is also protected from EMI and RFI interference—a critical layer of defense in electrically noisy environments. You can count on precise measurements even in the most complex industrial settings.

Accuracy You Can Trust—Up to 0.1%

The DSP isn’t just another digital gauge. It delivers 0.1% accuracy at 23°C across a broad range of pressure types:

• Relative Gauge

• Absolute

• Compound

• Vacuum

• Barometric

Need guaranteed precision across a wider temperature band? Opt to add the 9-Point NIST Traceable Certificate of Conformance, which ensures that 0.1% accuracy extends from 0°C to 50°C—ideal for critical operations.

Smarter Display, Safer Readings

The DSP features a large, backlit digital display that’s easy to read in any lighting condition. The 0.9-inch primary digits show real-time pressure readings, while the secondary display provides Max, Min, Avg, or Delta readings in 0.4-inch digits.

A Range Bar percentage indicator allows the operator to quickly make sure pressures are within a safe range, preventing overrange.

One Million Data Points. Infinite Insight.

Need to monitor trends over time? The integrated data logger captures up to 1 million time-stamped data points, allowing for deep process analysis and better decision-making. Whether you’re optimizing performance or identifying issues before they escalate, the DSP puts actionable data at your fingertips.

Extended Battery Life That Keeps Up With You

Battery-powered DSP models feature exceptionally long life thanks to a C cell lithium metal battery that lasts up to four years at a default one-second refresh rate. Want to extend it further? Easily adjust the refresh rate to fit your process needs and monitor remaining battery life right from the display.

Upgrade to add Transmitter and Switch

For those needing advanced functionality, Palmer Wahl offers optional transmitter and switch capabilities:

• 4–20 mA or 0–5 V analog output

• Programmable pressure switch with high and low alarm points

• Color-coded visual alarms (Red for high, Blue for low, Green for normal)

• Seamless integration with relay systems, including safety and time delay relays

These features allow the DSP to power the display, transmitter, switch, and alarms simultaneously - without skipping a beat.

Designed for Flexibility

Installation is rarely one-size-fits-all. That’s why the DSP is available in both Fixed and Adjustable Angle mounting configurations. The adjustable angle fitting offers superior flexibility, allowing for optimal screen visibility in even the most confined or unconventional spaces.

Made in the USA. Trusted Worldwide.

Every Digi-Stem® DSP is manufactured in our Asheville, NC facility, ensuring the quality, consistency, and expert craftsmanship that have defined Palmer Wahl for nearly two centuries.

Ready to Take Control of Your Process?

From its unbeatable accuracy and robust durability to its smart logging and integrated alert systems, the Digi-Stem® DSP is more than just a pressure gauge—it’s a complete solution for modern process monitoring.

Experience precision under pressure. Request a quote or learn more today.