Spellman XLG SERIES, XLF SERIES Instruction Manual

R

XLG/XLF SERIES

MODEL :
SERIAL# :
DATE :

SPELLMAN
HIGH VOLTAGE ELECTRONICS
CORPORATION

475 Wireless Blvd.
Hauppauge, New York, 11788

[phone]*FAX: [phone]*
E-mail: [e-mail]
Website: www.spellmanhv.com

High Voltage Power Supply

XLG/XLF MANUAL 118021-001 Rev C

IMPORTANT SAFETY PRECAUTIONS

SAFETY

THIS POWER SUPPLY GENERATES VOLTAGES THAT ARE DANGEROUS AND MAY BE FATAL.

OBSERVE EXTREME CAUTION WHEN WORKING WITH THIS EQUIPMENT.

High voltage power supplies must always be grounded.

Do not touch connections unless the equipment is off and the

Capacitance of both the load and power supply is discharged.

Allow five minutes for discharge of internal capacitance of the power supply.

Do not ground yourself or work under wet or damp conditions.

SERVICING SAFETY

.

Maintenance may require removing the instrument cover with the power on.

Servicing should be done by qualified personnel aware of the electrical hazards.

WARNING note in the text call attention to hazards in operation of these units

that could lead to possible injury or death.

CAUTION notes in the text indicate procedures to be followed to avoid possible

damage to equipment.

Copyright © 2000, Spellman High Voltage Electronics Corporation. All Rights Reserved.

This information contained in this publication is derived in part from proprietary and patent data. This information has

been prepared for the express purpose of assisting operating and maintenance personnel in the efficient use of the

model described herein, and publication of this information does not convey any right to reproduce it or to use it for

any purpose other than in connection with installation, operation, and maintenance of the equipment described.

118004-001 REV. B

WICHTIGE SICHERHEITSHINWEISE

SICHERHEIT

DIESES HOCHSPANNUNGSNETZTEIL ERZEUGT LEBENSGEFÄHRLICHE HOCHSPANNUNG.

SEIN SIE SEHR VORSICHTIG BEI DER ARBEIT MIT DIESEM GERÄT.

Das Hochspannungsnetzteil muß immer geerdet sein.

Berühren Sie die Stecker des Netzteiles nur, wenn das Gerät ausgeschaltet ist und die elektrischen

Kapazitäten des Netzteiles und der angeschlossenen Last entladen sind.

Die internen Kapazitäten des Hochspannungsnetzteiles benötigen ca. 5 Minuten, um sich zu entladen.

Erden Sie sich nicht, und arbeiten Sie nicht in feuchter oder nasser Umgebung.

SERVICESICHERHEIT

Notwendige Reparaturen können es erforderlich machen, den Gehäusedeckel während des Betriebes zu

entfernen.

Reparaturen dürfen nur von qualifiziertem, eingewiesenem Personal ausgeführt werden.

“WARNING” im folgenden Text weist auf gefährliche Operationen hin, die zu Verletzungen oder zum Tod

führen können.

“CAUTION” im folgenden Text weist auf Prozeduren hin, die genauestens befolgt werden müssen, um

eventuelle Beschädigungen des Gerätes zu vermeiden.

118004-001 REV. B

PRECAUTIONS IMPORTANTES POUR VOTRE SECURITE

CONSIGNES DE SÉCURITÉ

CETTE ALIMENTATION GÉNÈRE DES TENSIONS QUI SONT DANGEUREUSES ET PEUVENT ÊTRE FATALES.

OYEZ EXTRÊMENT VIGILANTS LORSQUE VOUS UTILISEZ CET ÉQUIPEMENT.

S

Les alimentations haute tension doivent toujours être mises à la masse.

Ne touchez pas les connectiques sans que l’équipement soit éteint et que la capacité à la fois de la charge et de

l’alimentation soient déchargées.

Prévoyez 5 minutes pour la décharge de la capacité interne de l’alimentation.

Ne vous mettez pas à la masse, ou ne travaillez pas sous conditions mouillées ou humides.

CONSIGNES DE SÉCURITÉ EN CAS DE REPARATION

La maintenance peut nécessiter l’enlèvement du couvercle lorsque l’alimentation est encore allumée.

Les réparations doivent être effectuées par une personne qualifiée et connaissant les risques électriques.

Dans le manuel, les notes marquées « WARNING » attire l’attention sur les risques lors de la manipulation de ces

équipements, qui peuvent entrainer de possibles blessures voire la mort.

Dans le manuel, les notes marquées « CAUTION » indiquent les procédures qui doivent être suivies afin d’éviter

d’éventuels dommages sur l’équipement.

118004-001 REV. B

IMPORTANTI PRECAUZIONI DI SICUREZZA

SICUREZZA

QUESTO ALIMENTATORE GENERA TENSIONI CHE SONO PERICOLOSE E

POTREBBERO ESSERE MORTALI.

PONI ESTREMA CAUTELA QUANDO OPERI CON QUESO APPARECCHIO.

Gli alimentatori ad alta tensione devono sempre essere collegati ad un impianto di terra.

Non toccare le connessioni a meno che l’apparecchio sia stato spento e la capacità interna

del carico e dell’alimentatore stesso siano scariche.

Attendere cinque minuti per permettere la scarica della capacità interna dell’alimentatore

ad alta tensione.

Non mettere a terra il proprio corpo oppure operare in ambienti bagnati o saturi d’umidità.

SICUREZZA NELLA MANUTENZIONE.

Manutenzione potrebbe essere richiesta, rimuovendo la copertura con apparecchio

acceso.

La manutenzione deve essere svolta da personale qualificato, coscio dei rischi elettrici.

Attenzione alle AVVERTENZE contenute nel manuale, che richiamano all’attenzione ai

rischi quando si opera con tali unità e che potrebbero causare possibili ferite o morte.

Le note di CAUTELA contenute nel manuale, indicano le procedure da seguire per evitare

possibili danni all’apparecchio.

118004-001 REV. B

Table of Contents

PAGE

1. INTRODUCTION

1.1 Description of the XLG/XLF Series....................................................................1

1.2 XLG/XLF Specifications.....................................................................................1

1.3 Standard Features.................................................................................................2

1.3.1 Remote Operating Features ....................................................................2

1.3.2 System Status and Fault Diagnostic Display..........................................2

1.4 Options.................................................................................................................3

1.5 Interpreting the Model Number...........................................................................3

2. INSPECTION & INSTALLATION

2.1 Initial Inspection..................................................................................................4

2.2 Mechanical Installation........................................................................................4

3. OPERATING INSTRUCTIONS

3.1 Operation .............................................................................................................6

3.2 Standard Features.................................................................................................6

4. PRINCIPLES OF OPERATION

4.1 Chassis .................................................................................................................16

4.2 Line Rectifier and Filtering..................................................................................16

4.3 Inverter.................................................................................................................17

4.4 High Voltage Transformer...................................................................................17

4.5 High Voltage Assembly.......................................................................................17

4.6 Control/Power PWB ............................................................................................17

4.7 Front Panel Assembly..........................................................................................18

4.8 Filament Supply PWB .........................................................................................18

4.9 Options.................................................................................................................18

5. OPTIONS

5.1 Adjusting Overload Trip......................................................................................19

5.2 220C AC Single Phase Input ...............................................................................19

5.3 No Slow Start.......................................................................................................19

5.4 Non-Standard Slow Start .....................................................................................19

5.5 Extra Length Output Cable..................................................................................19

5.6 Adjustable Power Trip.........................................................................................19

5.7 Arc Trip Option ...................................................................................................19

5.8 Instant ON Option................................................................................................19

5.9 Custom Designed Models....................................................................................19

XLG/XLF MANUAL i 118020-001 REV E

6. MAINTENANCE

6.1 Periodic Servicing................................................................................................21

6.2 Performance Test.................................................................................................21

6.3 High Voltage Dividers.........................................................................................21

7. REPLACEMENT PARTS

7.1 Replacement Parts................................................................................................22

7.2 Correspondence and Ordering Spare Parts..........................................................22

8. FACTORY SERVICE

8.1 Warranty Repairs.................................................................................................23

8.2 Factory Service Procedures .................................................................................23

8.3 Ordering Options and Modifications...................................................................23

8.4 Shipping Instructions...........................................................................................23

APPENDIX

A. Specification Controls (Custom Models Only)

LIST OF FIGURES

Figure 2.1 Dimensions XLG and XLF............................................................................5

Figure 3.1 Typical Operating Setup XLG.......................................................................8

Figure 3.2 Typical Operating Setup XLF........................................................................9

Figure 3.3A Remote Programming via Voltage Source ....................................................11

Figure 3.3B Remote Programming via External Resistance..............................................11

Figure 3.4 Remote Monitor Test Point Designations......................................................12

Figure 3.5 Remote Control of HV ON and HV OFF......................................................12

Figure 3.6 External Inhibit Interface Circuit...................................................................13

Figure 3.7 External Interlock Interface Circuit...............................................................13

Figure 3.8 Remote HV ON and Remote HV OFF Indicator Circuit...............................14

Figure 3.9 Remote Mode Indicators Interface ................................................................15

Figure 5.1 Instant ON Option..........................................................................................20

Figure 5.2 Adjustable Power Remote Interface ..............................................................20

Table 1.1 Options...........................................................................................................3

Table 3.1 Rear Panel Interface.......................................................................................10

Table 4.1 List of Main Assemblies................................................................................17

XLG/XLF MANUAL ii 118020-001 REV E

LIST OF TABLES

Chapter 1

INTRODUCTION

1.1 Description of the XLG/XLF
Series

he XLG/XLF series of high voltage power supplies
represent an advanced approach to X-ray generator

T

power requirements. These power supplies provide
all of the power, control, and support functions required
for practically all X-ray applications. The XLG/XLF
series provide high voltage, high current outputs with
very low ripple. Extremely stable voltage and current
outputs result in significant performance improvements
over previously available technology. Low output ripple
provides higher intensity levels, with no increase in tube
loading.

All these advancements are possible only by Spellman’s
long history in X-ray power systems. These series of
power supplies utilize extremely advanced resonant
conversion techniques, along with sophisticated digital
technology.

The XLF series is specifically designed for X-ray tube
application where the high voltage is a negative polarity,
and the filament circuits are referenced to the cathode
high voltage potential, (floating filament). The XLG
series is specifically designed for X-ray tube applications
where the high voltage is a positive polarity, and the
filament circuits are referenced to cathode ground
potential, (grounded filament).

The X-ray tube voltage and tube emission current are all
continuously adjustable via front panel and/or remote
controls.

The power supplies operate from a variety of line
voltages and are convection cooled for 1 – 300W models
and fan cooled for 800 to 1200W models requiring no
water cooling. Custom designed units for single use or
OEM applications are available.

1.2 XLG/XLF Specifications

 Output Control: Voltage and current are

continuously adjustable over the entire range from

zero to maximum rating a ten-turn potentiometer

with a lockable counting dial.
 Input Voltage: 115Volts AC10%, 50/60Hz, single

phase or 220Volts AC 10%, 50/60Hz, single phase.

1200W models are available with 220 V AC input

only. Specify input voltage at time of order. Other
line voltages are available.

 Voltage Regulation:

Load Regulation: 0.005% of full voltage for a no

load to full load change.

Line Regulation: 0.005% of full voltage over the

specified input voltage range.

 Current Regulation:

Load Regulation: 0.05%  of full current ±100uA

for any voltage change.

Line Regulation: 0.01% of full current over the

specified input voltage range.

 Ripple: 0.03%rms below 1kHz,

0.75%rms above 1kHz.

 Filament XLG:

HPWR: 9A, 3V
LPWR: 3A, 3V

 Filament XLF: 5A, 15V.
 Stability: 0.01% per hour after 1/2 hour warm up.

0.02% per 8 hours (typical).

 Temperature Coefficient: 100 ppm per C. Higher

stability (50 ppm per ºC) available on special order.

 Ambient Temperature:

Operating: 0C to +40C
Storage: -40C to +85C

 Metering: Digital voltage and current meters are

accurate to 1%.

 Weight: 17 to 30 lbs. (7.7 to 14kg) depending on

model.

 Physical:

XLG:

30-60kV: 3 ½”H x 19”W x 19”D rack mount.
(89 x 483 x 483mm).
80-130V: 3 ½”H x 19”W x 19”D rack mount.
(89 x 483 x 483mm).

XLF:

3 ½”H x 19”W x 20”D rack mount.
(89 x 483 x 508mm).

XLG/XLF MANUAL 1 118020-001 REV E

1.3 Standard Features

The XLG/XLF series incorporates several standard
features designed to optimize user satisfaction and safety.

KV AND MA/FILAMENT CURRENT RAMP
CIRCUITS: This feature provides for a gradual rise for

kV, mA and filament current. This feature is designed to
limit voltage shock and filament shock to the X-ray tube.
The kV ramp rate is approximately 6 seconds. The
filament current is slowly increased until the desired mA
level is achieved. This time is typically 5 seconds for full
mA output. These ramp conditions are started at the
initial HV ON control signal.

ARC DETECT / ARC QUENCH / ARC COUNT:
These features allow the user to tailor the power supply to
meet specific needs in dynamic load applications. If an
arc occurs, the output is inhibited for approximately one
second, then the output is ramped up to the preset level
with the Slow-start circuitry. See Chapter 3 for operating
details and information for user customization for these
features.

REMOTE HIGH VOLTAGE CONTROL: Allows
remote control of the HIGH VOLTAGE ON and HIGH
VOLTAGE OFF functions. Signals are also provided for
remote indication of HV ON or HV OFF status.

EXTERNAL INHIBIT: A circuit that will inhibit the
high voltage output is provided of the 25 pin mini-D
connector on the rear of the chassis. A logic low, ground,
will inhibit the high voltage output and a logic high, open,
will restore the high voltage output to the preset level.
NOTE: The External Inhibit circuit should
NOT be used for protection against injury or for safety
interlock. See External Interlock for this type of safety
control

EXTERNAL INTERLOCK: Interlock connections are
provided on the terminal block on the rear of the chassis
for connection to a safety switch. The unit will not
operate unless the interlock circuit is closed. During high
voltage operation, opening the interlock circuit will cause
the High Voltage to shut off. This circuit should be used
for safety interlock circuits.

INTERNAL FAULT PROTECTION: The XLG/XLF
series continually monitors internal circuits critical to the
proper operation of the power supply. In the event that
one of these circuits does not function correctly, the fault
detection circuit latches the appropriate fault on the front
panel display and turns off the outputs and reverts the unit
to the POWER DOWN mode.

INDICATOR LAMPS: HIGH VOLTAGE OFF and
HIGH VOLTAGE ON indicators.

OUTPUT CABLE: XLG models are provided with a
ten foot shielded high voltage output cable. The cables
are designed with a plug arrangement so that they can be
easily removed from the mating receptacle located on the
rear of the chassis. internal EMI filter and fuse provide
protection against line voltage surges and power supply
faults.

1.3.1 Remote Operating Features

REMOTE PROGRAMMING: Allows remote
adjustment of the output voltage and current via an
external voltage source. The output power is also
remotely controllable when the CPC or APT option is
ordered.

REMOTE MONITOR: Allows remote monitoring of
the tube voltage and tube emission current. NOTE:
Output power remote monitor is included with the CPC
and APT options.

1.3.2 System Status and Fault
Diagnostic Display

“Dead Front” type indicators are provided to give the user
complete indication of system operation and fault
conditions. If a fault occurs the power supply will revert
to the POWER DOWN mode. This is indicated by both
the HV ON and HV OFF lamps turning off. To reset,
depress the HV OFF switch.

VOLTAGE (CONTROL): Indicates the output voltage
regulator circuit is maintaining voltage regulation.

CURRENT (CONTROL): Indicates the output current
regulator circuit is maintaining current regulation.

POWER (CONTROL): Indicates the output power
regulator circuit is limiting tube power (optional).

HV INHIBIT: Indicates the high voltage supply is being
inhibited by either the EXTERNAL INHIBIT or internal
protection circuitry.

INTLK CLSD: Indicates the EXTERNAL
INTERLOCK connections are in the closed position.
This also indicates closure of internal power supply
interlocks.

INTLK OPEN: Indicates the EXTERNAL
INTERLOCK connections are in the open position. This
also indicates opening of internal power supply
interlocks.

XLG/XLF MANUAL 2 118020-001 REV E

OVERVOLT: Indicates the overvoltage protection
circuitry has caused the power supply to turn off.
Overvoltage protection is internally set to 110% of rated
output voltage.

OVERCURR: Indicates the output current has exceeded
the programmed current trip level when the AOL
(Adjustable Overload Trip) or the OL (overload Trip)
options are installed.

The options available are listed kin Table 1.1. See
Section 5 for more information on these options along
with operating and set-up instructions. With few
exceptions, these options and modifications can be
retrofitted to your power supply at the factory in a short
time. For price and retrofit arrangements, contact
Spellman’s Sales Department.

OVERPWR: Indicates the output power has exceeded
the internally set level or the remote programmed level if
the optional circuitry is installed.

ARC: Indicates that an arc has occurred within the
previous one second or that the ARC COUNT/TRIP has
shutdown the power supply.

RGLT ERR: Indicates a failure in the voltage, current or
power regulation circuitry. This fault usually occurs
when there is a lack of output power to maintain
regulation.

FILAMENT STANDBY/LIMIT (rear panel):

Indicates the filament is in a standby or limit mode. Also,
when illuminated, this indicates the emission current
regulator is not regulating.

1.4 Options

CODE DISCRIPTION

• AOL Adjustable Overload Trip (0-103%)

• APT Adjustable Power Trip

• AT Arc Trip

1.5 Interpreting the Model

Number:

The model number of the power supply describes its
capabilities. After the series name is:

(1) the maximum voltage (in kV)
(2) the maximum output (in watts)
(3) the option codes for all options that are included.
Custom units have an X number after the option codes.

XL 30 P 1200/ AOL / X(#)

Series
Name

Maximum
Voltage

Polarity

Maximum
Power

Option

Custom

"X" Numb er

• SS(X) Non-Standard Slow Start

• NSS No Slow Start

• IO Instant ON

• ( ) Specify 220V or 100V or 200Vac Single

Phase input with order

• DPM4 4 ½ digit ±1 least significant digit panel mrt

• LL(X) Extra Length Output Cable

• SL Slides

• BFP Blank Front Panel

Table 1.1 XLG/XLF Options

XLG/XLF MANUAL 3 118020-001 REV E

Chapter 2

Inspection and Installation

nitial inspection and preliminary checkout
procedures are recommended. For safe

I

operation, please follow the step-by-step
procedures described in Chapter 3, Operating
Instructions.

2.1 Initial Inspection

Inspect the package exterior for evidence of
damage due to handling in transit. Notify the
carrier and Spellman immediately if damage is
evident. Do not destroy or remove any of the
packing material used in a damaged shipment.

After unpacking, inspect the panel and chassis
for visible damage.

Fill out and mail the Warranty Registration card
accompanying the unit. Standard Spellman
XLG/XLF high voltage power supplies and

components are covered by warranty. Custom
and special order models (with an X suffix in the
model number) are also covered by warranty.

2.2 Mechanical Installation

Units in the XLG/XLF series have front panel
holes for standard EIA rack mounting. The rack
must allow rear access for cable connections.
Units are fully enclosed and are suitable for
bench or tabletop operation. Standard unit
dimensions are shown in Figure 2.1. It is
strongly recommended to support the chassis by
guides or slides. Slides are available for ease of
servicing (SL option).

XLG/XLF MANUAL 4 118020-001 REV E

Figure 2.1 XLF & XLF DIMENSIONS

XLG/XLF MANUAL 5 118020-001 REV E

Chapter 3

Operating Instructions

3.1 Operation

WARNING

THIS EQUIPMENT GENERATES

DANGEROUS VOLTAGES THAT MAY BE

FATAL.

PROPER GROUNDING OF ALL HIGH

VOLTAGE EQUIPMENT IS ESSENTIAL.

WARNING:

Before connecting the power supply to the

AC line, follow this step-by-step procedure.
Do not connect the power supply to the AC

line until Step H is reached.

Failure to follow these procedures may void

the warranty.

A) Insure that the Circuit Breaker is in the OFF
position (0).

B) Check the input voltage rating on the nameplate
of the supply and make certain that this is the rating of the
available power source. Spellman XLG/XLF units
operate on 115VAC (or 220V if 220 V option is ordered),
single phase unless ordered with a different input voltage.

C) PROPER GROUNDING TECHNIQUE: The
chassis of high voltage power supplies must be grounded,
preferably to a water system ground using copper pipe or
other earth ground using the connection terminal at the
rear of the unit.. See Figure 3.1, 3.2 for a typical
operating setup.

The return line from the load should be connected to the
terminal on the rear of the power supply. Using a
separate external ground at the load is not recommended.

The units are provided with a three conductor line cord.
D) Attach the output cable to the load.
E) Plug the high-voltage output cable into the rear

of the supply and hand tighten the knurled collar.

XLG/XLF MANUAL 6 118020-001 REV E

F) Options Note: See section 5 for hook up and
operating instructions for the options on your unit.
Custom models may also require set up changes.

G) For initial turn-on, rotate the KILOVOLT
control fully counter-clockwise to the zero voltage
position.

H) The input power cable may now be connected to
the AC power line.

I) Switch the front panel circuit breaker to the ON
position (1). (If the supply is to be turned off for an
extended period of time the line cord should be
disconnected). The unit is now in the HIGH VOLTAGE
OFF mode. The HIGH VOLTAGE OFF light should be
lit.

J) Depress and hold the HIGH VOLTAGE OFF
switch. The front panel meters will now read the preset
value of the KILOVOLT control dial and the
MILLAMPERES control dial. To preset the desired level
of the current and voltage during operation, hold the
HIGH VOLTAGE OFF switch and rotate the appropriate
control dial while noting its corresponding meter reading.
Release the HIGH VOLTAGE OFF switch.

NOTE: No actual output is being produced at this stage.
K) Depress the HIGH VOLTAGE ON switch. The

light inside the switch should light up and the output will
slow start to the preset level output voltage and/or output
current.

Note: The XLG/XLF series is equipped with a slow start
circuit that ramps the output up to its maximum setting in
approximately 6 seconds after the HIGH VOLTAGE ON
switch is depressed.

L) To terminate the generation of output power,
depress the HIGH VOLTAGE OFF switch. In the HIGH
VOLTAGE OFF mode the power supply’s fault and
interface circuits are still active.

M) To turn off the power supply, turn the circuit
breaker to the off position (0).

NOTE: If a power supply fault, or system monitoring
fault occurs, the power supply will revert to the POWER
DOWN mode. In this mode the output power will be
turned off. The HV OFF lamp will be off. To reset,
depress the HV OFF Switch.

WARNING

AFTER TURNOFF, DO NOT HANDLE THE LOAD

UNTIL THE CAPACITANCE HAS BEEN

DISCHARGED!

LOAD CAPACITANCE MAY BE DISCHARGED BY

SHORTING TO GROUND.

WARNING

THE VOLTMETER ON THE POWER SUPPLY

FRONT PANEL DOES NOT

VOLTAGE WHEN THE POWER IS TURNED OFF,

EVEN IF A CHARGE STILL EXISTS ON THE

READ THE OUTPUT

LOAD.

CAUTION

control (front panel control), jumpers are installed on the
connector JB1 in the rear of the chassis between JB1-10
and JB1-11 for voltage control and between JB1-8 and
JB1-9 for current control.

For remote programming, the jumpers are removed and a
positive voltage source, from 0 to 10 volts, is applied to
the appropriate terminals. Programming signals should
be referenced to JB1-1 signal ground. By adjusting the
voltage source from 0 volts (zero output) to 10 volts (full
rated output) the desired output can be selected. See
Figure 3.3A for wiring diagram and specifications.

An alternate method of controlling the output remotely is
by using external resistance such as a potentiometer or a
resistor network. For remote control the jumpers are
removed and the desired resistor configuration is
installed. See Figure 3.3B for wiring diagram.

ALWAYS OPERATE THE UNIT WITH THE COVER

ON.

A fan maintains safe operating temperature in the XLF
power supplies by drawing air over the circuit
components. The cover must be on in order to direct the
air flow over the areas that need cooling. In operation,
the unit must be places so that the air intake and the fan
exhaust are clear of any obstructions that might impede
the flow of air. The XLG units do not use forced air
cooling. Simply maintain ambient temperature
specifications.

3.2 Standard Features

A note on remote interface circuitry and remote signal
grounding. Whenever possible, electrical isolation should
be provided when interfacing with any high voltage
power supply. For power control signals such as
EXTERNAL INTERLOCK, HIGH VOLTAGE OFF and
HIGH VOLTAGE ON isolated relay contacts should be
used. For status signals and control signals such as HIGH
VOLTAGE ON, HIGH VOLTAGE OFF, EXTERNAL
INHIBIT, etc. Opto-isolation should be used. If possible,
analog programming and monitoring signals should be
isolated via analog isolation amplifiers. Spellman
application engineers are available to assist in interface
circuitry design. All interface cables should be properly
shielded. All power supply signals should be referenced
to the power supplies signal ground on the rear terminal
block JB1-1.

REMOTE PROGRAMMING: Allows remote
adjustment of the output voltage and current via an
external voltage source. (Output power is also remotely
controllable with the CPC and APT options). In local

REMOTE MONITOR: Test points are made available
on the rear of the chassis for monitoring the voltage and
current output. (Output power monitor is included with
the CPC and APT option). The test points are always
positive regardless of the output polarity, where zero 0 to
10 volts equals 0-100% of output ±0.5%. Test points
have an output impedance of 5k ohms. See Figure 3.4 for
test point designation.

REMOTE CONTROL: Remote control of the POWER
ON, HIGH VOLTAGE ON and HIGH VOLTAGE OFF
can be accomplished via the rear panel interface. The
POWER ON control is an on-off toggle contact. HIGH
VOLTAGE OFF and HIGH VOLTAGE ON are
controlled by momentary normally closed normally open
contacts, respectively. See Figure 3.5 for recommended
interface.

EXTERNAL INHIBIT: Allows the user to inhibit the
power supply output without switching HIGH
VOLTAGE OFF control. This circuit can be used to
generate fast slewing output waveforms or control high
voltage generation as in Laser and Capacitor discharge
applications. The maximum inhibit rate should not
exceed 5Hz. Consult factory for higher repetition rates or
high pulse load applications. See Figure 3.6 for the
recommended interface circuit.

WARNING

It is extremely dangerous to use this

Inhibit circuit to inhibit high voltage

generation for the purpose of servicing

or approaching any area of load

considered unsafe during normal use.

XLG/XLF MANUAL 7 118020-001 REV E

EXTERNAL INTERLOCK: Interlock connections are
provided on the terminal on the rear of the chassis for
connection to a safety switch. The unit will not operate
unless the interlock circuit is closed. If the interlock is
not being used, the jumper installed on the terminals
before shipping must be in place. If the jumper is
missing, or there is an open between the interlock
terminals the unit’s high voltage inverter will be disabled.
During high voltage operation, opening the interlock
circuit will cause the unit to revert to the HIGH
VOLTAGE OFF mode. Subsequent closing of the
interlock circuit will NOT return the unit to HIGH
VOLTAGE ON mode, this must be accomplished by
depressing the HIGH VOLTAGE ON switch. See Figure

3.7 for the recommended interface circuit.
ARC DETECT / ARC QUENCH ARC COUNT: The

ARC DETECT circuit senses dynamic arcing or
discharge conditions present at the output load. If an arc
occurs, the output is inhibited for one second. After the
one-second period, the output is ramped up to the
previous set level. This ramp is based on the standard
six-second slow start feature. The ARC DETECT ramp
circuit may be disabled by removing CR32 on the

Control/Power PWB. Caution should be observed if this
feature is disabled. Discharge rates of greater than 1 Hz
may cause excessive power dissipation in the power
supply’s output limiting resistors.

The ARC COUNT feature will allow the user to program
the ARC fault parameters. The ARC indicator on the
front panel will illuminate for approximately one second
after each arc has occurred. The power supply can be
programmed to trip to the POWER DOWN mode if an
arc occurs. The standard feature is programmed to trip
the power supply if 8 arcs occur within a twenty second
period.

REMOTE HIGH VOLTAGE ON & REMOTE HIGH
VOLTAGE OFF: Signals are provided for remote

monitoring of the HIGH VOLTAGE ON/OFF status. See
Figure 3.8 for recommended interface.

REMOTE MODE INDICATORS: Signals are
provided for remote indication of the control mode status,
voltage control, current control and power control. See
Figure 3.9 for the recommended interface.

Figure 3.1 Typical Operating Setup XLG

XLG/XLF MANUAL 8 118020-001 REV E

Figure 3.2 Typical Operating Setup XLF

XLG/XLF MANUAL 9 118020-001 REV E

JB1 SIGNAL SIGNAL PARAMETERS

1 Power Supply Common Signal Ground
2 External Inhibit Ground = Inhibit, Open = HV ON
3 External Interlock +15V at Open, <15mA at Closed
4 External Interlock Return Return for Interlock
5 Current Monitor 0 to 10V = 0 to 100% rated output
6 KV Test Point 0 to 10V = 0 to 100% rated output
7 + 10V Reference +10.24V, 1mA max.
8 Remote Current Program In 0 to 10V = 0 to 100% rated output

9 Local Current Program Out Front Panel Program Voltage
10 Remote Voltage Program In 0 to 10V = 0 to 100% rated output
11 Local Voltage Program Out Front Panel Program Voltage
12 Power Monitor 0 to 10V = 0 to 100% rated output
13 Remote Power Program In (Optional)
14 Local HV OFF Out +15V at Open, <25mA at Closed
15 HV OFF Connect to HV OFF for FP operation.
16 Remote HV ON +15V, 10mA max = HV ON
17 Remote HV OFF Indicator 0 = HV ON, +15V, 10mA max = HV OFF
18 Remote HV ON Indicator 0 = HV OFF, +15V, 10mA max = HV ON
19 Remote Voltage Mode Open Collector 50V max, 10mA max,
20 Remote Current Mode On = Active
21 Remote Power Mode
22 Remote PS Fault 0 = Fault, +15V, 1mA max = No Fault
23 + 15V Output +15V, 100mA max
24 Power Supply Common Signal Ground

Table 3.1 Rear Panel Interface

XLG/XLF MANUAL 10 118020-001 REV E

Voltage Source 0-10V = 0-100% of Rated Output
It is recommended that analog signals be isolated

via isolation amplifiers.

JB1

1

PS Common

All cables should be shielded with the shields
being returned to the chassis ground of the
High Voltage Power Supply.

Remove jumpers for

remote programming

Figure 3.3A Wiring Diagram for Remote Programming Via Voltage Source

Fully Counterclockwise = Zero Output
Fully Clockwise = 100% of Rated Output

JB1

1

2
3
4
5
6
7
8

Z in = 10M Ohms

9

10

Z in = 10M Ohms

11

PS Common

v

Remote
Current
Program

V

Remote
Voltage
Program

10
11

2
3
4
5
6
7
8
9

20k Ohm

CW

+10.32V
1mA max.

Z in = 10M Ohms

Z in = 10M Ohms

Remote
Current
Control

All cables should be shielded with the shields
being returned to the chassis ground of the
High Voltage Power Supply.

If connections to external potentiometers are
excessively long (>10 ft), motorized
potentiometers are recommended.

Remove jumpers for

remote programming

Figure 3.3B Wiring Diagram for Remote Programming Via External Resistance

XLG/XLF MANUAL 11 118020-001 REV E

20k Ohm

Remote
Voltage
Control

CW

It is recommended that analog signals be isolated
via isolation amplifiers.

All cables should be shielded with the shields
being returned to the chassis ground of the
High Voltage Power Supply.

Figure 3.4 Remote Monitor Test Point Designations

It is recommended to use relay contacts for S1 and S2.
Relays should be located as close as possible to the high
voltage power supply. Coils should be driven form

JB1

1
2
3
4
5
6
7

PS Common

Current

M

Monitor

Z out = 4.99k ohms ±0.1%

Z out = 4.99k ohms ±0.1%

isolated sources. Signals are at ¢ 15Vdc, 25mA max, and
are only to be used for contact closure.

S1 must be closed to enable HIGH VOLTAGE ON.

M

Voltage
Monitor

Remove jumper for remote
high voltage control

All cables should be shielded
with the shields being returned

to the chassis ground of the
High Voltage Power Supply.

Figure 3.5 Remote Control of High Voltage ON and High Voltage OFF Interface

JB1

14
15
16
17

S1

S2

S1=Remote High

Voltage Off

S2=Remote High

Voltage On

XLG/XLF MANUAL 12 118020-001 REV E

Transistor should be located as close as possible

to the power supply.

All cables should be shielded with the shields
being returned to chassis ground of the
High Voltage Power Supply.

+15V

JB1

1

2

2.2K
3

High Voltage Power
Supply Internal inhibit circuitry.

4

Figure 3.6 External Inhibit Interface Circuit

It is recommemded to use relay contacts for S1. The relay

should be located as close as possible to the power supply.

Signals are ~15Vdc, 25mA max and are only to be used
for contact closure.

JB1

PS Common

Transistor
ON
Inhibits
High
Voltage

1

2

Remove jumper
for remote
external interlock

All cables should be shielded with the shields being returned
to chassis ground of the High Voltage Power Supply.

3

4

5

S1

S1 Open = Interlock Open
S1 Closed = Interlock Closed

Figure 3.7 External Interlock Interface

XLG/XLF MANUAL 13 118020-001 REV E

External Safety
Interlock Control

12Vdc lamps or relay coils may replace opto-couplers.

Opto-couplers, lamps or relays should be located as close
as possible to the high voltage power supply.
All cables should be shielded with the shields being returned
to chassis ground of the High Voltage Power Supply.

JB1

PS Common

1

2

3

4

General Purpose
Opto-Coupler

5

To High Voltage

6

7

OFF Indicator

General Purpose
Opto-Coupler

8

To High
Voltage
ON
Indicator

P/O High Voltage
Power Supply

1K Ohm

1/4 W

1K Ohm

1/4 W

9

10

11

12

13

14

15

16

R Limit

17

R Limit

18

Signals are 15Vdc, 10mA max.
R Limit must be > 500 Ohms.

Figure 3.8 Remote High Voltage ON and Remote High Voltage OFF Indicator Circuit

XLG/XLF MANUAL 14 118020-001 REV E

JB1

+15V, 100mA max.

23

Voltage Control

R1

R2

R3

19

20

21

R Limit

10mA max.

R Limit

10mA max.

R Limit

10mA max.

R limit must be > 1k Ohm
R1-R3=680 Ohm, 1/4W

Indicator
Current Control

Indicator
Power Control

Indicator

Figure 3.9 Remote Mode Indicators Interface

XLG/XLF MANUAL 15 118020-001 REV E

Chapter 4

PRINCIPLES OF OPERATION

he XLG/XLF series of high voltage power supplies
utilizes sophisticated power conversion technology.

T

A variety of analog, digital and power conversion
techniques are used throughout. The intention of the
Principles of Operation is to introduce the basic function
blocks that comprise the XLG/XLF power supply. For
details on a specific circuit, consult Spellman’s
Engineering Department.

See Table 4.1 for a list of the main assemblies found in a
typical XLG/XLF power supply.

* Due to the many variations within the XLG/XLF series,
drawing numbers may differ from unit to unit.

The XLG/XLF power supply is basically an AC to DC
converter. Within the power supply, conversions of AC
to DC, then high frequency AC, then to high voltage DC
take place. By reviewing further the sub-assemblies, a
basic understanding of the process can be gained.

4.1 Chassis

The XLG/XLF is a compact, high efficiency, high voltage
power supply. The power supply can supply up to 600
watts of DC power. (Output power capability may be
higher or lower depending upon model ordered). Output
voltages of up to 130kV can be generated.

WARNING

The energy levels used and generated by the

power supply can be lethal! Do not attempt to

operate the power supply unless the user has a

sufficient knowledge of the dangers and hazards

of working with high voltage. Do not attempt to

approach or touch any internal or external

circuits or components that are connected or

have been connected to the power supply. Be

certain to discharge any stored energy that may

be present before and after the power supply is

used. Consult IEEE recommended practices for

safety in high voltage testing #510-1983.

4.2 Line Rectification and Filtering

Basic single phase rectification provides the DC voltage
for the high frequency inverter. The line input voltage
can vary from 90 up to 242 volts within the XLG/XLF
series.

In general, the following variations can be ordered:
100Vac ±10%, 50/60Hz, single phase.
115Vac ±10%, 50/60Hz, single phase.
200Vac ±10%, 50/60Hz, single phase.
220Vac ±10%, 50/60Hz, single phase.
Other input voltages can be accommodated. If the user is

unsure which input voltage option is supplied, check the
serial tag on the rear of the power supply or consult
Spellman’s Sales Department

Circuit protection is provided by CB1 (SYSTEM BLOCK
DIAGRAM CHASSIS XLG/XLF SCHEMATIC). CB1
is a fast acting magnetic trip type circuit breaker. The
line input is connected directly to the line side of CB1.
The load side of CB1 is connected to the
CONTROL/POWER PWB. The load side of CB1 is also
connected to T1. T1 is a step-down type line transformer.
T1 provides voltage for housekeeping and control circuit
power.

WARNING

LINE VOLTAGE IS PRESENT WHENEVER THE

POWER SUPPLY IS CONNECTED TO EXTERNAL

LINE VOLTAGES. BE SURE TO DISCONNECT

THE LINE CORD BEFORE OPENING THE UNIT.

ALLOW 5 MINUTES FOR INTERNAL

CAPACITANCE TO DISCHARGE BEFORE

REMOVING ANY COVER.

When CB1 is ON, voltage is applied to CR10. CR10 is
an isolated diode rectifier bridge that contains the rectifier
diodes used for line voltage rectification. The output of
CR10 is connected to a capacitor filter (C7 through C10).
Capacitors are initially charged through NTC type or
resistive inrush limiters.

Approximately 1 second after CB1 is turned on, a relay is
energized to short the NTC or resistor limiters. This relay
is K1. This DC voltage is supplied to the high frequency
inverter.

The DC rails are connected to the high frequency rail
capacitors. These capacitors are high frequency, low loss
type. Capacitors C11, C12, C54, and C55 provide the
energy storage for the high frequency inverter.

XLG/XLF MANUAL 16 118020-001 REV E

XLG XLF

ASSEMBLY TITLE ASSEMBLY NO. SCHEMATIC NO. ASSEMBLY NO. SCHEMATIC NO.
Chassis 404486-001 440530-009 404437-002 440643-001
Power/Cont Bd (30 – 60kV)
(80 – 130kV)
Multiplier Assy (30 – 60kV)
(80 – 130kV)
Filament Board 404241-003 440606-001 404241-002 440606-001
Front Panel Bd (30 – 60kV)
(80 – 130kV)

450038-005
450038-006
403932-061
403970-131

403895-001
403895-002

440894-001 450047-004 440884-004

440533-001
440533-002

440525-001 403895-001 440528-001

404438-TAB 440648-001

Table 4.1 List of Main Assemblies

4.3 Inverter

The inverter is a series resonant, series/parallel loaded
topology. A proprietary control scheme is used for
regulating the power generated from the inverter. Q2,
Q3, Q4, and Q5 are high speed Mosfets. These devices
provide high frequency switching to control the resonant
current flow. The typical resonant operating period is
approximately 10uSeconds. The gate control for the
switching devices is provided by T2 on the
CONTROL/POWER PWB. The CONTROL/POWER
PWB also provides circuitry for sensing shoot thru and
over current conditions in the inverter. U10 and its
associated circuitry automatically shutdown the inverter.
U18 provides for the gates high current pulse
requirements. T2 provides line voltage isolation

4.4 High Voltage Transformer

The output of the High Frequency Resonant Inverter is
connected to the primary of the High Voltage
Transformer. The High Voltage Transformer is a step-up
type. Typically secondary voltages are in the range of
1kV to 4.5kV depending upon output voltage ratings.

4.5 High Voltage Assembly

The High Voltage Assembly will vary depending upon
the model ordered. The circuitry typically consists of a
full wave, full bridge. The higher voltage ranges utilize
various parallel, series arrangements of a full wave
voltage doubler.

Output filtering is typically provided by an R-C type
filter. Voltage feedback for regulation and monitoring is
provided by a high bandwidth resistive/capacitiv e divider.

Current feedback for regulation and monitoring is
provided by a sense resistor connected at the low voltage
end of the High Voltage Rectifier/Multiplier Circuit.

4.6 Control/Power PWB

The majority of control circuits for power supply controls
are located on the CONTROL/POWER PWB.

+15VDC, -15VDC, and +10VDC is generated on the
CONTROL/POWER PWB. High Voltage On/Off control
is accomplished by K3, and its associated circuitry.
Interlock control is provided by K4.

Voltage feedback from the high voltage divider is sent to
U6. Gain adjust is provided on the HV PWB. The KV
feedback signal is sent to the front panel DVM and to the
REAR PANEL TERMINAL BLOCK for remote
monitoring. K2 provides switching between feedback
and program signal for the front panel DVM’s. This
allows the user to preset the desired output before
energizing high voltage.

Program voltages are typically ramped up to set level by
the slow start circuits of U7.

Arc sense circuits U14 and U23 provide sensing, quench
and indication of arc conditions. Consult operation
manual for a detailed description of the arc sense control.

Current feedback from the high voltage rectifier is sent to
sense resistors located on the High Voltage Assembly.
Calibrated feedback is then sent to U4.

An overvoltage protection circuit provides protection in
the unlikely event of a main control loop failure. U9
provides gain adjustments for the overvoltage protection
(OVP) control.

XLG/XLF MANUAL 17 118020-001 REV E

U12 and U13 circuits provide visual indication of the
control mode, which is in operation. These signals are
sent to the FRONT PANEL ASSEMBLY for front panel
status indication.

The resonant control circuitry consists of a voltage to
pulse width converter. U17 generates all frequency and
pulse width control signals. U16 provides specific
control functions for the resonant control.

Power supply inhibit circuits are provided by U22 and
K3. System Fault Control and Indication is provided by
U19m U20, and U21 and associated circuitry. Diagnostic
signals are latched and then sent to the FRONT PANEL
ASSEMBLY for status indication.

4.7 Front Panel Assembly

Front Panel control meters, and status indications are
connected to the FRONT PANEL PWB. The FRONT

PANEL PWB interfaces directly to the
CONTROL/POWER PWB.

4.8 Filament Supply PWB

The power for the X-ray tube is provided by the filament
inverter. The filament inverter is a high frequency, series
resonant inverter. The inverter provides regulated current
to the primary of the filament transformer. The filament
isolation transformer is then connected to the output
connector.

4.9 Options

Due to the many variations of models and options
provided in the XLG/XLF series, details of actual circuits
used may differ slightly from above descriptions. Consult
Spellman’s Engineering Department for questions
regarding the principles of operations for the XLG/XLF
series.

XLG/XLF MANUAL 18 118020-001 REV E

Chapter 5

OPTIONS

He options available for this power supply are

described in this section. Interface diagrams are

T

shown where required. Options are specified by
including the option code in the model number as
described in Section 1.5.

5.1 Adjustable Overload Trip
AOL

The overload trip protection feature rapidly shuts down
the high voltage output when the load current exceeds the
limit set by the current control dial on the front panel. A
fast acting circuit inhibits the generation of high voltage
and reverts the unit to POWER DOWN mode,
illuminating the OVER CURRENT indicator. When
adjustable overload trip is provided, it replaces the
standard current regulation feature.

5.2 220V AC Single Phase Input
220

XLG/XLF power supplies with the 220 V AC input
option will operate from an input voltage of 220VAC rms
±10%, 50-60hZ, single phase.

5.3 No Slow Start NSS

The no slow start option causes the output voltage of the
power supply to rise (within 50 msec) to the rated voltage
upon depressing the HIGH VOLTAGE ON Switch.

5.4 Non-Standard Slow Start
SS(x)

5.6 Adjustable Power Trip
APT

The power control options allow monitoring and control
of the power supply output power. The APT option
allows the user to remotely adjust the power limit for the
power supply. If the power limit is exceeded, the unit
will shut down with an OVERPOWER fault. See Figure

5.2 or remote interface.

5.7 Arc Trip Option AT

When this option is ordered, the ARC Count circuit is set
so the unit trips to Standby after 1 count.

One of the applications for this option is for sensing
material breakdown under an applied high voltage.

5.8 Instant On IO

When the Instant On option is ordered, the High Voltage
is enabled as soon as line voltage is applied when the
circuit breaker is in the ON position.

To enable Instant ON, keep the jumper between JB1-14
and JB1-15 attached. Connect an additional jumper from
JB1-15 to JB1-16 as shown in Figure 5.1

CAUTION

The Power Supply will generate programmed High

Voltage whenever the circuit breaker is in the ON

position, and line voltage is applied.

The non-standard slow start option allows the gradual rise
time of the output voltage to be different from the
standard of six seconds. To order the option, place the
time desired in seconds after the suffix letter; i.e. SS(10)
denotes a 10 second rise time.

5.5 Extra Length Output Cable
LL(ft)

Standard output cable is 10’ of shielded high voltage
cable. Other lengths may be specified in multiples of 10
feet.

XLG/XLF MANUAL 19 118020-001 REV E

5.9 Custom Designed Models X(#)

Units built to customer specifications are assigned an X
number be the factory. If this unit is an X model,
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 Spellman Sales Department with
your needs.

JB1

14

Existing jumper

15

Jumper JB1 15 to 16
for Instant ON option

16

17

Figure 5.1 Instant ON

____________________________________________________________________________________

JB1

Possible programming signals

Remove internal
jumper, JP1 ON
Control/Pwr Pwb
for remote programming.
(Jumper connects internat
pot factory set at 103%
of max power).

1
2

12
13

3
4
5
6

Z in = 10M ohms

7

Remote
Power
Monitor

M

0-10V=0-100%
power output

Zout=4.99k Ohms, 0.1%

V

Figure 5.2 Adjustable Power Remote Interface

Remote
Power

Program

20k Ohm

min.

Remote Pwr
Program

potentiometer

XLG/XLF MANUAL 20 118020-001 REV E

Chapter 6

MAINTENANCE

his section describes periodic servicing and

performance testing procedures.

T

WARNING

THIS POWER SUPPLY GENERATES VOLTAGES

THAT ARE DANGEROUS AND MAY BE FATAL.

OBSERVE EXTREME CAUTION WHEN

WORKING WITH HIGH VOLTAGE.

6.1 Periodic Servicing

Approximately once a year (more often in high dust
environments), disconnect the power to the unit and
remove the top cover. Use compressed air to blow dust
out of the inside of the unit. Avoid touching or handling
the high voltage assembly. Be sure that the fan is not
obstructed and spins freely. The fan has sealed bearings
and does not need lubrication. Be sure to replace the top
cover before operating for proper cooling.

6.2 Performance Test

WARNING

HIGH VOLTAGE IS DANGEROUS.

ONLY QUALIFIED PERSONNEL SHOULD

PERFORM THESE TESTS.

High voltage test procedures are described in Bulletin
STP-783, Standard Test Procedures for High Voltage
Power Supplies. Copies can be obtained from the
Spellman Customer Service Department. Test equipment,
including an oscilloscope, a high impedance voltmeter,
and a high voltage divider such as the Spellman HVD­100 or HVD-200, is needed for performance tests. All
test components must be rated for operating voltage.

6.3 High Voltage Dividers

High voltage dividers for precise measurements of output
voltage with an accuracy up to 0.1% are available from
Spellman. The HVD-100 is used for voltages up to
100KV. The HVD-200 measures up to 200KV. The
Spellman divider is designed for use with differential
voltmeters or high impedance digital voltmeters. The
high input impedance is ideal for measuring high voltage
low current sources, which would be overloaded by
traditional lower impedance dividers.

XLG/XLF MANUAL 21 118020-001 REV E

Chapter 7

REPLACEMENT PARTS

7.1 Replacement Parts

otact the Spellman Customer Service Department for
parts lists for specific models.

C

Spellman provides parts and subassemblies for its high
voltage power supplies but recommends that only
qualified personnel perform the repair. High voltage is
dangerous; even minor mistakes in repairs can have
serious consequences.

When requesting parts please give the model number and
serial number of the power supply

7.2 Correspondence and
Ordering Spare Parts

Each Spellman power supply has an identification label
on the rear of the chassis that bears its model and serial
number.

When requesting engineering or applications information,
please state the model and serial number of the power
supply. If specific components or circuit sections are
involved in the inquiry, it is helpful to indicate the
component symbol number(s) shown on the applicable
schematic diagram.

When ordering spare parts, please specify the part’s
description, the part’s reference designation or part
number, and the model and serial number of the unit.

XLG/XLF MANUAL 22 118020-001 REV E

Chapter 8

FACTORY SERVICE

8.1 Warranty Repairs

During the Warranty period, Spellman will repair all units
free of charge. The Warranty is void if the unit is worked
on by other than Spellman personnel. See the Warranty
in the rear of this manual for more information. Follow
the return procedures described in Section 8.2. The
customer shall pay for shipping to and from Spellman.

8.2 Factory Service Procedures

Spellman has a well-equipped factory repair department.
If a unit is returned to the factory for calibration or repair,
a detailed description of the specific problem should be
attached.

For all units returned for repair, please obtain an
authorization to ship from the Customer Service
Department, either by phone or mail prior to shipping.
When you call, please state the model and serial numbers,
which are on the plate on the rear of the power supply,
and the purchase order number for the repair. A Return
Material Authorization Code Number (RMA Number) is
needed for all returns. This RMA Number should be
marked clearly on the outside of the shipping container.
Packages received without an RMA Number will be
returned to the customer. The Customer shall pay for
shipping to and from Spellman.

A preliminary estimate for repairs will be given by phone
by Customer Service. A purchase order for this amount is
requested upon issuance of the RMA Number. A more
detailed estimate will be made when the power supply is
received at the Spellman Repair Center. In the event that
repair work is extensive, Spellman will call to seek
additional authorization from your company before
completing the repairs.

8.3 Ordering Options and
Modifications

Many of the options listed in Chapter 5 can b e retrofitted
into Spellman power supplies by our factory. For prices
and arrangements, contact our Sales Department.

8.4 Shipping Instructions

All power supplies returned to Spellman must be sent
shipping prepaid. Pack the units carefully and securely in
a suitable container, preferably in the original container, if
available. The power supply should be surrounded by at
least four inches of shock absorbing material. Please
return all associated materials, i.e. high voltage output
cables, interconnection cables, etc., so that we can
examine and test the entire system.

All correspondence and phone calls should be directed to:
Spellman High Voltage Electronics Corp.

475 Wireless Boulevard
Hauppauge, New York 11788
TEL: [phone] FAX: [phone]
E-Mail: [e-mail]
http://www.spellmanhv.com

XLG/XLF MANUAL 23 118020-001 REV E

SPELLMAN HIGH VOLTAGE ELECTRONICS

WARRANTY

Spellman High Voltage Electronics (“Spellman”) warrants that all power supplies it manufactures will be

free from defects in materials and factory workmanship, and agrees to repair or replace, without charge, any
power supply that under normal use, operating conditions and maintenance reveals during the warranty
period a defect in materials or factory workmanship. The warranty period is twelve (12) months from the
date of shipment of the power supply. With respect to standard SL power supplies (not customized) the
warranty period is thirty-six (36) months from the date of shipment of the power supply.

For all Spellman LPX products that incorporate an X-Ray Tube, the standard Spellman Warranty does not apply to
the X-Ray tube for which the orig inal manufacturer’s warra nty applies. Spellman specifically disclaims any direct
warranty for such tubes. In the event of a tube failure within one year from shipping date, provided there is no
evidence of misuse or abuse, the tube will be replaced according to the terms of the original tube manufacturer’s
warranty to Spell m an.

This warranty does not apply to any power supply that has been:

 Disassembled, altered, tampered, repaired or worked on by persons unauthorized by Spellman;
 subjected to misuse, negligent handling, or accident not caused by the power supply;
 installed, connected, adjusted, or used other than in accordance with the original intended application and/or

instructions furnished by Spellman.

THE FOREGOING WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
THOSE OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

The buyer’s sole remedy for a claimed breach of this warranty, and Spellman’s sole liability is limited, at

Spellman’s discretion, to a refund of the purchase price or the repair or replacement of the power supply at
Spellman’s cost. The buyer will be responsible for shipping charges to and from Spellman’s plant. The

buyer will not be entitled to make claim for, or recover, any anticipatory profits, or incidental, special or
consequential damages resulting from, or in any way relating to, an alleged breach of this warra nty.

No modification, amendment, supplement, addition, or other variation of this warranty will be binding unless
it is set forth in a written instrument signed by an authorized officer of Spellman.

For an authorization to ship contact Spellman’s Customer Service Department. Please state the model and
serial numbers, which are on the plate on the rear panel of the power supply and the reason for return. A
Return Material Authorization Code Number (RMA number) is needed from Spellman for all returns. The
RMA number should be marked clearly on the outside of the shipping container. Packages received without
an RMA Number may delay return of the product. The buyer shall pay shipping costs to and from Spellman.
Customer Service will provide the Standard Cost for out-of-warranty repairs. A purchase order for this
amount is requested upon issuance of the RMA Number (in-warranty returns must also be accompanied by
a “zero-value” purchase order). A more detailed estimate may be made when the power supply is received
at Spellman. In the event that the cost of the actual repair exceeds the estimate, Spellman will contact the
customer to authorize the repair.

Spellman will warrant for three (3) months or balance of product warranty, whichever is longer, the repaired
assembly/part/unit. If the same problem shall occur within this warranty period Spellman shall undertake all
the work to rectify the problem with no charge and/or cost to the buyer. Should the cause of the problem be
proven to have a source different from the one that has caused the previous problem and/or negligence of
the buyer, Spellman will be entitled to be paid for the repair.

For a complete listing of Spellman’s Global Service facilities please go to:

http://www.spellmanhv.com/en/Contact-Us/Customer-Service.aspx

Factory Service Procedures

Factory Service Warranty

Spellman Worldwide Service Centers

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