Setra System Model 270 User Manual
Page 3
INSTALLATION INSTRUCTIONS FOR MULTIPLE HOOK-UP
OF 4-WIRE SETRA PRESSURE TRANSDUCERS
OPTION #1
Uses a single, ground referenced power supply for excitation and separate, isolated (not ground refer-
enced) readout or “differential input” to a data acquisition system for each pressure transducer output.
OPTION #2
Uses a separate, isolated power supply for each pressure transducer’s excitation and a single, ground
referenced readout or “single ended input” to a data acquisition system for all of the outputs.
Power Supply (Nominal 24 VDC)
PT - Pressure Transducer (4 Wire Circuit)
DVM/DAS - Digital Volt Meter or Data Acquisition System
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