Varec, Inc. 1
Chapter 1
Introduction
Using this Manual
This manual is designed to assist the user in the installation, operation, maintenance, and
troubleshooting of low-pressure 2500 Automatic Tank Gauges. Former 2600 Series gauges
with a hand crank are included. These gauges are for use at atmospheric pressure or at low
pressure (2.5 psig). Medium- and high-pressure tanks are served by the 2520 ATG gauges for
pressure vessels to 300 psig and are covered in their respective product manuals.
Proper operation of the gauge requires the user to pay serious attention to assuring high
quality control during the installation. Long term, satisfactory performance of the gauge can
thus be obtained. If the installation quality is compromised, gauge accuracy, and life may be
degraded.