Product Description
Series HM28 Handheld Digital Pressure Manometer – 0–10″ w.c. / 2.5 kPa, Model HM28D3B10000
The Series HM28 handheld digital manometer is engineered for technicians, commissioning agents, and calibration laboratories that require high-resolution pressure measurement in ultra-low-pressure environments. Covering 0–10 inches of water column (2.5 kPa), this model supports differential, gauge, and absolute pressure modes with selectable accuracy tiers down to ±0.05% full scale.
Its compact form factor and intuitive interface make it ideal for HVAC balancing, cleanroom testing, filter loading diagnostics, and confined-space troubleshooting. Every unit includes a calibration certificate, allowing the HM28 to serve as a secondary calibration reference for verifying transmitters, regulators, and airflow systems.
Ultra-Low Pressure Measurement & Key Specifications
• Pressure Range: 0–10″ w.c. / 2.5 kPa
• Accuracy Options: ±0.20%, ±0.10%, or ±0.05% FS
• Measurement Modes: Differential, gauge, absolute
• Media Compatibility: Air and compatible gases
• Wetted Materials: 18/8 stainless steel
• Display: Two-line LCD with adjustable character size
• Memory: 964 readings
• Logging Intervals: 1–60 seconds or manual
• Power: 9V battery or 7–14 VDC external
• Ingress Protection: IP54 / NEMA 3
• Pressure Ports: 4/6 mm hose or 1/8″ NPT
• Approvals: CE
High-Speed Sampling & RS-232 Output
With rapid sampling rates and RS-232 connectivity, the HM28 captures pressure fluctuations during airflow commissioning and diagnostic testing. PC downloads simplify compliance reporting and calibration records.
The rugged enclosure and low-power draw make this handheld instrument a dependable tool for both field technicians and laboratory benches.
Why Professionals Choose the HM28 Handheld Series
✔ Portable design for field diagnostics
✔ Differential, gauge, and absolute modes
✔ Accuracy tiers to ±0.05% FS
✔ Calibration certificate included
✔ Data logging with PC download
✔ RS-232 communication
✔ IP54 enclosure
