Setra System Model 869 User Manual
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2.0 INTRODUCTION
DOCUMENTING PROCESS CALIBRATOR:
The Setra Micro-Cal Model 869 is a pressure generating, very low pres-
sure documenting calibrator. The calibrator has been designed and
optimized to meet the needs of our customers for a capable system for
the calibration, troubleshooting and documentation of very low pressure
measuring sensors.
The design of the Model 869 exploits years of experience in the calibra-
tion of Setra transducers, as well as NASA patented and Setra exclusive
licensed technology. The Pocket PC user interface provides a familiar
“state-of-the-art” application of computer technology and an upgrade path
for future developments.
Major Features:
• Pocket PC user interface, capable of storing thousands of Units Under
Test (UUT) data files.
• Portable, battery powered system, capable of full operation for up to
eight (8) hours.
• Closed loop pressure control which is immune to the effects of ambient
pressure perturbations, (doors closing, people moving around).
• Very low internal reference pressure standards, which are selectable to
match customer needs.
• Auto zero pressure “tare” function.
• Ability to source power to the UUT, or use external power supply.
• Strip chart capability for troubleshooting drift conditions.
• High resolution pressure control capable of precise generation and
pressure control in the micro inch of water column pressure ranges.
• Leak testing
Diagram 1
Standard 869
Expert-Equipped 869