Product Description
Precision Digital Differential Pressure Manometer – HM3531DLM310
The Series HM35 Precision Digital Differential Pressure Manometer provides dependable pressure-drop measurement for laboratories, calibration facilities, and industrial hygiene programs.
This configuration features a 0–245 PSI differential pressure range with 0.20% accuracy, integrated data logging, graphical trend display, and a factory calibration certificate — making it ideal for HVAC commissioning, filter testing, regulator diagnostics, and compliance audits.
Engineered for air and compatible gases, the HM3531DLM310 supports ventilation surveys and secondary-standard calibration programs where traceability and repeatable performance are required.
Differential Pressure Range, Accuracy & Operating Limits
• Pressure Range: 0–245 PSI (Differential)
• Measurement Modes: Differential, Absolute, Gage
• Accuracy Configuration: ±0.20%
• Service Media: Air & compatible gases
• Operating Temperature: 32–122°F (0–50°C)
• Storage Temperature: −4 to 140°F (−20 to 60°C)
• Humidity: 95% RH max, non-condensing
Construction & Instrument Design
• Wetted Materials: 18/8 Stainless Steel
• Display: Graphical back-lit LCD (128 × 64)
• Enclosure Rating: IP54 / NEMA 3
• Weight: 10.5 oz (270 g)
Data Logging & Power
• Memory Capacity: 10,742 readings
• Recording Interval: 1 second to 24 hours
• PC Download: IR serial port
• Power: (3) AA batteries or 6–9 VDC external
• Current Draw: 25 mA (no backlight / IR)
Pressure Connections
• Hose: 4 / 6 mm
• Thread: 1/8″ NPT
Typical Applications
• HVAC commissioning
• Filter differential testing
• Ventilation surveys
• Cleanroom validation
• Regulator pressure-drop testing
• Calibration labs
• Industrial hygiene audits
• Process diagnostics
Why Professionals Choose the HM3531DLM310
• Differential pressure capability
• Included calibration certificate
• Data-logging memory
• Trend graph display
• Rugged IP54 housing
• Portable battery operation
• Multi-mode pressure measurement
Compliance & Certifications
• CE Approved
• IP54 / NEMA 3 rated
Shipping Information
Lead time subject to factory availability.
