TSI Incorporated HM685 Digital Manometer
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The TSI Incorporated HM685 is a digital manometer with 0–300 psi range, backlit display, universal flow calculations, and USB data logging.
Product details
| Model | HM685 |
| Manufacturer | TSI Incorporated |
| Category | Manometers |
| Availability | Made to order |
Description
Overview
The TSI Incorporated HM685 is a digital manometer designed for HVAC field service and commissioning. It measures pressure in multiple units and provides on-board calculations for flow, energy, and system performance assessment. The backlit display and data logging capability make it suitable for both immediate readings and historical analysis.
Key Features
- Pressure measurement range 0–300 psi (0–2068 kPa)
- Multiple unit support: H₂O, ft. H₂O, psi, in. Hg, mm Hg, m H₂O, kPa, bar
- Large backlit display for visibility in low-light conditions
- Universal flow and BTU/hr calculations
- Programmable Cv/Kv factors (up to 100 entries)
- On-board calculation of brake power, heat flow, and impeller sizing
- Data storage: up to 4,000 readings
- USB interface for data download and software control
- Dual temperature probe inputs
- Splash-proof, rugged case
- Weight: 2.65 lbs with batteries
- Powered by four alkaline or NiMH rechargeable batteries
Included Accessories
- Hard carrying case
- Two 6.7 ft × ¼-inch hoses with shut-off valves
- Two B&G readout probes
- Two P/T gauge adapter probes
- Temperature probe
- Power cord
- CompuDat™ USB downloading software
- USB interface cable
Applications
- HVAC system balancing and commissioning
- Airflow and ductwork diagnostic testing
- Pressure drop calculations and troubleshooting
- Energy efficiency audits and system optimization
Specifications
| Pressure Range | 0–300 psi (0–2068 kPa) |
| Pressure Units | H₂O, ft. H₂O, psi, in. Hg, mm Hg, m H₂O, kPa, bar |
| Display | Large backlit |
| Temperature Probe Inputs | 2 |
| Flow Calculations | Universal; Cv/Kv factors (up to 100) |
| Data Storage | Up to 4,000 readings |
| Interface | USB |
| Power Source | Four alkaline or NiMH rechargeable batteries |
| Weight | 2.65 lbs with batteries |
| Case | Splash-proof, rugged |
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