DR3720 High Accuracy Digital Pressure Gauge (mbar)

The DR3720 Fix: No More False Readings

We were experiencing issues with our cleanroom environment’s air handling unit, specifically with the pressure readings from one of the key gauges. The hydraulic press was cycling slower than expected, and despite normal gauge readings, parts were consistently out of specification. This raised concerns about potential false readings affecting process control.

Low-pressure analog gauges use a delicate movement; friction in the pivot point reduces resolution below 100 mbar. In our cleanroom, where pressure variations can affect critical processes, we needed accurate measurements down to the smallest fluctuation. The traditional gauge’s limitations were leading to unreliable data and inconsistent product quality.

Investigating further, I realized that these false readings could stem from inherent mechanical limitations of the analog gauge. We replaced it with the DR3720 Digital Pressure Gauge, known for its solid-state sensor without moving parts. This allowed us to resolve pressures as low as 1 mbar accurately and reliably.

The transition was swift; within a few hours, we noticed significant improvements in our process control. Parts were now consistently within specification, leading to reduced waste and rework. The monetary savings were substantial—avoiding potential losses of $30,000 from scrapped products due to out-of-spec parts.

Key Specifications

• High accuracy measurement (mbar resolution)
• Stainless steel housing for harsh environments
• Large backlit LCD display
• Peak-hold function for capturing max pressure
• Multiple units: MPa/PSI/Kgf/cm²/bar/KPa/Pa/mbar/inH₂O/mmHg/Torr/ATM
• USB power supply or 4.5V battery (AA x 3)
• 5-digit display, resolution -99999 to 99999

How do you ensure accurate pressure measurements in your cleanroom processes?

Tags: #DR3720