This is the manual of Extech Heavy Duty Differential Pressure Manometer Model HD755
The Extech HD755 is a heavy-duty differential pressure manometer designed to measure gauge and differential pressure in the range of ±0.500 psi. It features an 11-unit selectable display, data recording capabilities (MIN/MAX/AVG), zeroing functions, and a built-in USB interface for PC connectivity.
| Measurement Range | ±0.500 psi |
|---|---|
| Units of Measure | 11 selectable units (psi, mbar, etc.) |
| Accuracy | ±0.3%FS + 1d (@ 25°C) |
| Response Time | 0.5s typical |
| Battery Type | 9V alkaline battery |
| Operating Temperature | 0 to 50°C (32 to 122°F) |
| Storage Temperature | 0 to 60°C (14 to 140°F) |
Press and hold the HOLD button while turning the meter on, then release when 'n' appears.
It indicates that the pressure input exceeds specified limits.