Specifications

Service and Maintenance

Further service and maintenance topics:

Verification and Calibration

Self-Test Procedure

Firmware Update

Instrument Sanitize

Calibration Switches

Disassembly

Manual Updates

Types of Service Available

If your instrument fails during the warranty period, Agilent Technologies will repair or replace it under the terms of your

warranty. After your warranty expires, Agilent offers repair services at competitive prices.

Many Agilent products have optional service contracts that extend coverage after the standard warranty expires.

Obtaining Repair Service (Worldwide)

To obtain service for your instrument, contact your nearest Agilent Technologies Service Center. They will arrange to

have your unit repaired or replaced, and can provide warranty or repair–cost information where applicable. Ask the Agi-

lent Technologies Service Center for shipping instructions, including what components to ship. Agilent recommends

that you retain the original shipping carton for return shipments.

Before Returning the Unit

Before returning the unit, make sure the failure is in the instrument rather than any external connections. Also make

sure that the instrument was accurately calibrated within the last year (see Calibration Interval).

If the unit is inoperative, verify that:

l the AC power cord is securely connected to the instrument

l the AC power cord is plugged into a live outlet

l the front-panel power switch is turned on

If self-test failed, verify that:

Ensure that all connections (front and rear) are removed when self-test is performed. During self-test, errors may be

induced by signals present on external wiring, such as long test leads that can act as antennae.

Repackaging for Shipment

To ship the unit to Agilent for service or repair:

Agilent N8900 Series Operating and Service Guide 117