Product Description
Ultra-Precision Digital Differential Pressure Manometer – 0–14.5 PSI
The Series HM35 ultra-precision digital differential pressure manometer is engineered for laboratories, calibration benches, and industrial verification environments requiring exceptional accuracy and traceable performance. Capable of measuring absolute, differential, or gauge pressure, this model delivers measurement accuracy as tight as 0.05% of full scale while capturing long-term pressure trends through onboard data logging.
Each instrument ships with a calibration certificate, allowing it to function as a trusted secondary calibration reference for validating transmitters, regulators, and pressure controllers.
Pressure Range & Instrument Specifications
• Pressure Range: 0–14.5 PSI
• Accuracy Options (per order code):
– ±0.20% FS + 1 digit
– ±0.10% FS + 1 digit
– ±0.05% FS + 1 digit
• Media Compatibility: Air and compatible gases
• Wetted Materials: 18/8 stainless steel
• Operating Temperature: 32 to 122°F (0 to 50°C)
• Storage Temperature: –4 to 140°F (–20 to 60°C)
• Humidity: 95% RH max, non-condensing
• Display: Graphical backlit LCD, 128 × 64 resolution
• Memory Capacity: 10,742 readings
• Recording Interval: 1 second to 24 hours or manual
• Power Supply: (3) AA batteries or 6–9 VDC external
• Current Draw: 25 mA (without backlight, IR, or buzzer)
• Ingress Protection: IP54 / NEMA 3
• Weight: 10.5 oz (270 g)
• Pressure Connections: 4/6 mm hose or 1/8" NPT
• Approvals: CE
Integrated Data Logging & Graphical Trend Display
This HM35 manometer stores more than 10,700 readings internally, enabling technicians to monitor pressure stability, capture transient fluctuations, and document calibration events. Data can be transferred to a PC through the instrument’s infrared port for reporting and audit trails.
The large graphical LCD visualizes pressure trends, peak values, and valleys in real time — ideal for airflow testing, leak detection, HVAC diagnostics, and laboratory research.
Applications
• Calibration laboratories
• Research facilities
• Instrument verification programs
• HVAC testing
• Industrial QA departments
• Pressure transmitter validation
• Process control troubleshooting
Why Professionals Specify the HM35 Series
✔ Ultra-precision accuracy to 0.05% FS
✔ Measures absolute, differential, and gauge pressure
✔ Secondary calibration reference capability
✔ Onboard data logging with PC download
✔ Graphical trend visualization
✔ Stainless steel wetted components
✔ IP54 enclosure for field or lab use
✔ Battery or external power operation
Shipping Information
Shipping availability depends on factory production schedules. Customers requiring expedited delivery should contact customer service to confirm lead times prior to ordering.
