Specifications

Cathode Ray Tube
Type: Post-deflection accelerator, aluminized P31 phosphor,
electrostatic focus and deflection.
Viewing Area: Approximately 9.6 cm vertically by 11 .O cm
horizontally (3.8 in x 4.7 in). The CRT is completely turned off with
(GE) (CLEAR WRITE) (trace B, KSg) and on with [SHIFT) [HOLD]
(trace B, KSh) to avoid unnecessary aging of the CRT during long-term
unattended operation of the analyzer.
Instrument State Storage
Up to six complete sets of user-defined control settings may be stored
and recalled by pressing SAVE or RECALL and the desired register
number (1 to 6) from the keyboard. Register 0 stores the current state
while register 7 stores the instrument state prior to the last function
change via the numeric/unit keyboard, step keys, or INSTR PRESET.
Registers 8 and 9 store the two instrument calibration states.
To lock the save registers press (SHIFT)
[SAVE) (KS( ). To unlock the
save registers, press (EJ [RECALL] (KS) ).
Instrument state information stored in registers 0 through 7 is
retained in memory for approximately 1 year in STANDBY mode or
after line power is removed and analyzer is stored between 20
“C and
30 “C.
Remote Operation
The standard HP 8568B operates on the Hewlett-Packard Interface
Bus (HP-IB). All analyzer control settings (with the exception of
VIDEO TRIGGER LEVEL, FOCUS, ALIGN, INTENSITY, FREQ ZERO,
AMPTD CAL, and LINE power) are remotely programmable. Function
values, marker frequency/amplitude, and A/B traces may be output;
CRT labels and graphics may be input.
LCL: Returns analyzer to local control, if not locked out by controller.
Service Request: (SHIFT] OLIN) (KSr) calls an HP-IB request for service.
4-10 Characteristics