Product Description
Series HM28 Handheld Digital Pressure Manometer – 0–28″ w.c. / 7 kPa, Model HM28D3C10000
The Series HM28 handheld digital manometer is built for technicians, commissioning agents, and calibration laboratories that need portable, high-resolution pressure measurement in low-range environments. Covering 0–28 inches of water column (7 kPa), this model supports differential, gauge, and absolute measurement modes with selectable accuracy tiers down to ±0.05% full scale.
Its compact housing and intuitive controls make it ideal for HVAC balancing, filter loading analysis, cleanroom pressurization studies, and industrial troubleshooting. Every unit ships with a calibration certificate, allowing the HM28 to serve as a secondary calibration reference for verifying transmitters, regulators, and airflow systems.
Low-Range Pressure Measurement & Key Specifications
• Pressure Range: 0–28″ w.c. / 7 kPa
• Accuracy Options: ±0.20%, ±0.10%, or ±0.05% FS (per order code)
• 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
The HM28 captures transient pressure changes during commissioning and diagnostics with rapid measurement rates and RS-232 connectivity. PC downloads simplify compliance reporting, airflow studies, and calibration documentation.
Durable construction and low current draw make this handheld manometer a dependable choice for field engineers and laboratory benches.
Why Professionals Choose the HM28 Handheld Series
✔ Portable design for HVAC and lab use
✔ Differential, gauge, and absolute modes
✔ Accuracy tiers to ±0.05% FS
✔ Calibration certificate included
✔ Data logging with PC download
✔ RS-232 communication
✔ IP54 enclosure
