Extech HD750 Heavy Duty Differential Pressure Manometer User Guide

About this manual

The HD750 is a heavy-duty differential pressure manometer that measures gauge and differential pressure up to ±5.000 psi. It supports 11 selectable units including psi, inHg, kPa, and bar. Key features include data hold, min/max/avg recording, zero/offset, auto power-off, and USB PC interface. The device uses a 9V battery and includes quick-disconnect fittings for easy connection. It is calibrated and tested at shipment, with a three-year warranty on parts and workmanship (six months for sensors).

What's inside

• Meter Description
• Basic Operation
• Unit of Measure
• Fittings Connection
• Zero Adjust and Offset function
• MIN-MAX-AVG Record Mode
• USB PC Interface
• Displayed Error Codes
• Specifications
• Battery Replacement

Frequently asked questions

What is the maximum pressure the HD750 can measure?

The maximum pressure is 10psi.

What is the battery type used in the HD750?

The HD750 uses a 9V alkaline battery.

How long does the battery last under normal use?

The battery lasts 125 hours typical.

What are the dimensions of the HD750?

The dimensions are 8.2 x 2.9 x 1.9 inches.