Agilent Technologies 5517B Operation And Service Manual page 44

SECTION V ADJUSTMENTS
5-1. INTRODUCTION
5-2. This section describes adjustments and checks required to return the HP 5517B Laser Head to peak operating
capabilities when repairs have been made. Included in this section are the test equipment required, equipment
setups, and procedures to perform the adjustments.
5-3. SAFETY CONSIDERATIONS
5-4. The following warnings contain information thai must be understood for your safety.
WARNING
FROM 1.2 KILOVOLTS TO 12 KILOVOLTS DC IS PRESENT ON THE
ANODE OF THE LASER TUBE IN THE HP 5517B. EXERCISE EXTREME
CAUTION WHEN WORKING INSIDE THE INSTRUMENT. THE HIGH
VOLTAGE COULD CAUSE SERIOUS PERSONAL INJURY IF CON-
TACTED. THE FOLLOWING ADJUSTMENTS SHOULD BE PERFORMED
BY SERVICE-TRAINED PERSONNEL.
CAUTION
ALWAYS REMOVE POWER FROM THE LASER HEAD PRIOR TO
CONNECTING OR DISCONNECTING LASER HEAD CABLING TO OR
FROM THE HP 5517B'S REAR PANEL.
5-5. RECOMMENDED TEST EQUIPMENT
5-6. Test equipment required for each adjustment is included in the adjustment procedure. Detailed critical
specifications for the required test equipment are contained in
specifications given in the table may be substituted for the recommended model(s).
5-7. FACTORY SELECTED COMPONENTS
5-8. As of the publication date on the title page of this manual there are no factory selected components.
5-9. ADJUSTMENT PROCEDURES
5-10. The following paragraphs contain the adjustment procedures for the HP 5517B Laser Head. A performance
test is given in Section IV.
5-11. Reference Temperature Adjustments
5-12. This adjustment sets the laser preheat temperature to 105°C (221°F) The adjustment must be performed when
the laser tube is at room temperature, 21 to 25°C (69.8 to 77.0°F)
Table 1-2.
Any equipment that satisfies the critical