64
34405A User’s and Service Guide
4
Performance Tests and Calibration
Calibration Overview
Closed - Case Electronic Calibration
The instruments features closed- case electronic calibration. No internal
mechanical adjustments are required. The instrument calculates correction
factors based upon the input reference value you set. The new correction
factors are stored in non- volatile memory until the next calibration
adjustment is performed. Non - volatile EEPROM calibration memory does
not change when power has been off or after a remote interface reset
Agilent Technologies Calibration Services
When your instrument is due for calibration, contact your local Agilent
Service Center for a low- cost recalibration. The 34405A is supported on
automated calibration systems, which allow Agilent to provide this service
at competitive prices.
Calibration Interval
A 1- year interval is adequate for most applications. Accuracy
specifications are warranted only if adjustment is made at regular
calibration intervals. Accuracy specifications are not warranted beyond the
1- year calibration interval. Agilent does not recommend extending
calibration intervals beyond 2 years for any application.
N O T E
Make sure you have read
“Test Considerations”
on page 67 before calibrating the
instrument.
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