This document describes the features and characteristics of the Extech HD750 Heavy Duty Differential Pressure Manometer, including measurement of gauge pressure and differential pressure, 11 measurement units, data hold and record mode, zero adjustment, etc.
This manual provides instructions for the Extech HD750 heavy duty differential pressure manometer. The device measures gauge and differential pressure with a precision range of ±5.000 psi and supports 11 measurement units. Key features include a differential input port, data hold, min/max/avg recording modes, zero/offset adjustment, auto power-off, and a USB PC interface. This manual is written in Chinese.
| Precision | ±0.3%FS (@ 25°C) |
|---|---|
| Repeatability | ±0.2% to 0.5% FS |
| Max Pressure | 10 psi |
| Response Time | 0.5s |
| Battery | 9V alkaline |
| Battery Life | 125 hours |
| Dimensions | 8.2 x 2.9 x 1.9 inches |
| Weight | 9.8 oz (280 g) |
The maximum pressure is 10 psi. Applying pressure exceeding this value can damage the instrument.
Press and hold the Hold button when the instrument starts. Release when 'n' appears on the display.
ERR1 indicates that the pressure input is out of the specified limits.