AMETEK BPS Series - Manual (Page 70)

User Manual AMETEK Programmable Power
BPS Series 70
PROGRAM 2
PHASE Selects the phase angle between the external clock and the output of
the AC source. If the clock source is internal, this parameter has no
effect.
CLOCK MODE Selects internal or external clock source. The BPS Series controller
uses an open-air crystal time base with an accuracy of 100 ppm. To
improve output frequency stability and accuracy, an external clock
generator may be used.
VOLT MODE The BPS Series offers three output modes, AC, DC and AC+DC. The
VOLT MODE field can be used to toggle between these three output
modes. Both the Knob and the +/- key may be used to toggle through
these three selections. In DC mode, no frequency selection is possible
and all maximum current and power ratings are divided by two.
DC OFFSET When the AC+DC mode is selected, the VOLTAGE field in the
PROGRAM 1 screen is used to set the AC portion of the output
voltage. The DC OFFSET field in the PROGRAM 2 screen can be
used to set the DC offset level. Either the knob or the decimal keypad
may be used to set the DC offset level.
START ø Selects the start phase angle for output changes made to either voltage
or frequency. This allows changing the output at a specific phase
angle. The output on key also uses this phase angle setting to program
the output voltage up to the set level after the output relay is closed.
The default value for this field is RANDOM.