Specifications

4-2 CALIBRATION AND
MEASUREMENT
CONDITIONS
The surrounding environmental conditions and the stability and condi
-
tion of the test port connectors, throughline, and calibration kit determine
system measurement integrity to a large extent.
These are all user controlled conditions, and as such, should be evaluated
periodically for impact on system performance. If these conditions vary
significantly with time, the system verification procedures should be per
-
formed more often than the recommended annual cycle.
Standard
Conditions
The standard conditions specified below must be observed when perform
-
ing any of the operations in this chapter—both during calibration and
during measurement.
q
Warm-up time: 90 minutes minimum
q
Environmental Conditions:
Temperature: 23 ±3 Degrees C
Relative Humidity: 20 to 50% (recommended)
Special
Precautions
When performing the procedures in this chapter, observe the following
precautions:
q
Prevent any vibration and movement of the system, attached
components, and throughline.
q Check pin depth and condition of all adapters, throughlines, and
calibration components. Clean as required.
q
Pre-shape the throughlines so as to minimize their movement
during calibration and measurement activities.
4-4 MS462XX MM
CALIBRATION AND MEASUREMENT PERFORMANCE VERIFICATION