DF3/FF3 MANUAL
22
118018-001
Rev E
5
OPTIONS
The options available for this power supply are
described in this section. Options are specified by
including the option code in the model number as
described in Section 1.5.
5.1
208V AC THREE PHASE
INPUT
3 PH
DF3/FF3 power supplies with the 208Vac input
option will operate from an input voltage of
208Vac rms
10%, 50-60Hz, three phase.
5.2
HIGH STABILITY
HS
20ppm/
C temperature coefficient is available for
both voltage and current regulation.
5.3
220VAC FAIL SAFE
CIRCUIT FSI
(220V)
Remote Fail-Safe circuit operating at 220Vac is
available. This replaces the standard WFS 220V
circuit.
5.4
12VDC FAIL SAFE
CIRCUIT
FSI (12V)
Remote Fail-Safe circuit operating at 12Vdc is
available. 24Vdc is standard.
5.5
24VDC WATER FLOW
SIGNAL
WFS
(24V/PO)
24Vdc water flow signal is switched with POWER
ON. The standard configuration is switched with
X-RAY ON.
5.6
220VAC WATER FLOW
SIGNAL WFS
(220V/PO)
220Vac water flow signal is switched with
POWER ON. The standard configuration is
switched with X-RAY ON. This option is not
available with FSI (220V).
5.7
DUAL FILAMENT
SUPPLY
DFS
A dual filament supply is available on FF3 models
only. This option allows the FF3 to power Varian
DTS-68 X-Ray tubes and equivalents.
5.8
4kW OUTPUT 4kW
4kW maximum power is available. On FF3 units,
maximum current is limited to 80 mA (100mA is
standard on 3kW FF3).
5.9
ELAPSED TIME METER
ETM
An elapsed time meter is provided. It displays
cumulative hours of X-RAY ON.
5.10
LARGE-COMMON
LC
The standard DF/FF output connections are
Common = 60kV, L and S = filament output. The
LC option ties L and C together and has the
filament on S.
5.11
NON-STANDARD SLOW
START
SS(x)
The non-standard slow start option allows the
gradual rise time of the output voltage to be
different from the standard. To order the option
place the time desired in seconds after the suffix
letter; i.e. SS(10) denotes a 10 second rise time.
5.12
SLIDES
SL
Units can be supplied with slides that mount into a
standard EIA 19” wide rack.
5.13
CUSTOM DESIGNED
MODELS X(#)
Units built to customer specifications are assigned
an X number by the factory. If this unit is an X
model, a specification control sheet is added at the
end of this instruction manual.
Spellman welcomes the opportunity to tailor units
to fit your requirements or to develop new
products for your applications. Contact the
Spellman Sales Department with your needs.