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Copyright 1996 Baker Hughes Company.
English–ADTS 403/405 Calibration Manual | 3
Notes on Calibration
1.7 Notes on Calibration
• For optimum calibration accuracy, the ADTS should be connected to the pressure standard
using metal, PTFE or high density polyethylene hoses to avoid contamination of the internal
sensors. This is particularly important when using an EXTERNAL pressure source.
• The ADTS should be allowed one hour to thermally stabilize after power on and before
performing any calibration routines.
• The units of pressure measurement for calibration in the following procedures are mbar.
• Calibration values that exceed the range of a channel will be ignored as a calibration value
for that channel.
• The [END PS] and the closing of the valve prevents the Ps (static) transducer from receiving
an overpressure.