Agilent Technologies 5517B Operation And Service Manual page 32

SECTION III OPERATION
3-1. INTRODUCTION
3-2. This section provides operating information for the HP 5517B Laser Head. Included are operation features of
the instrument's front and rear panel controls, indicators, and connector. Also provided is supplemental operating
information for HP 5501A Laser Transducer Systems equipped with HP 5517B Laser Heads.
3-3. Installation instructions for the HP 5517B Laser Head are given in Section II of this manual.
3-4. Power Application
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
3-5. The HP 5517B Laser Head is activated when +15 Vdc and -15 Vdc are applied to the unit. ±15 Volts is applied
by connecting either the HP 10791A/B/C Power Supply/Reference Cable (used when connecting the laser head to the
HP 5501A system electronics) or the HP 10793A/B/C Laser Head Cable (used when connecting the laser head to the
HP 5527A electronics) to the rear panel connector (A1J2). Ensure that the power source is adjusted to conform to the
following requirements before connecting it to the HP 5517B:
NOTE
REPETITIVE POWER-UP CYCLING SHOULD BE AVOIDED. THIS WILL
REDUCE
COMPONENTS.
3-6. HP 5517B LASER HEAD FRONT PANEL CONTROLS
3-7. Figure 3-1. identifies and describes each of the operating controls, connectors, and indicators. Refer to
for information regarding the specific power and signal lines at each of the connectors.
Measured Voltage
+15V± 0.3 Vdc -15V ± 0.3
Vdc
THE EXPECTED LIFE OF THE HIGH VOLTAGE
Table 2-1