Hp 3326A Turn On And Warm Up; H P 3 3 2 6 A Turn O N A N D W A R M U P - HP 3326A Operating And Reference Manual

Turn on and Warm up
HP 3326A TURN ON AND WARM UP
Turn O n and Power Up Self Tests
Connect the HP 3326A to a suitable power source and depress the POWER switch to
POWER apply power to the entire HP 3326A. When power is applied, the HP 3326A initially dis-
plays "HP 3326A" followed by a list of the options installed. The HP 3326A then initi-
ates a series of self tests and calibrates internal circuits. During a self test, all indica-
tors (except the EXT REF indicator) and display segments are illuminated then
extinguished, and a series of internal tests are initiated. After each internal test, PASS
or FAIL followed by a test number is displayed to indicate the test results. During a
self test, the outputs are disabled.
When power is removed from the HP 3326A with the POWER key, the HP 3326A is
in a standby condition. In the standby condition, power is applied to the high stability
frequency reference circuits (Option 001) to maintain frequency accuracy.
Turn On State
The initial state of the HP 3326A at power up is dependent upon the setting of internal
switches. The normal turn on state is the preset state described in "The Preset State
and the INSTR PRESET Key". However, through the use of the internal SAVE switch,
the setup state selected prior to removing power can be selected as the turn on state.
Setting of internal switches must be done by qualified service personnel. The location
and settings of the SAVE switch are described in the HP 3326A Service Manual.
Warm Up
An HP 3326A without the high stability frequency reference (Option 001) requires 30
minutes of operation to meet all specifications. An HP 3326A with Option 001 requires
15 minutes of operation to meet frequency specifications if power is disconnected for
less than 24 hours. If power is disconnected from the HP 3326A with Option 001 for