Introduction – Analytical Industries GPR-1500 A Series Trace PPM Oxygen Analyzer User Manual
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Advanced Instruments, Inc
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1. Introduction
Your new oxygen transmitter incorporates an advanced electrochemical sensor specific to oxygen along 
with state-of-the-art digital electronics designed to give you years of reliable precise oxygen measurements 
in a variety of industrial oxygen applications 
To obtain maximum performance from your new oxygen transmitter, please read and follow the guidelines 
provided in this Owner’s Manual. 
Every effort has been made to select the most reliable state of the art materials and components, to design 
the transmitter for superior performance and minimal cost of ownership. This transmitter was tested 
thoroughly by the manufacturer prior to shipment for best performance. 
However, modern electronic devices do require service from time to time. The warranty included herein plus 
a staff of trained professional technicians to quickly service your transmitter is your assurance that we stand 
behind every transmitter sold. 
The serial number of this transmitter may be found on the inside the transmitter enclosure. You should note 
the serial number in the space provided and retains this Owner’s Manual as a permanent record of your 
purchase, for future reference and for warranty considerations. 
Serial Number: ____
Advanced Instruments Inc. appreciates your business and pledges to make every effort to maintain the 
highest possible quality standards with respect to product design, manufacturing and service. 
