SpellmanHV XRF Series 80-640W Industrial X-Ray Generators

XRF Series

  • 160kV Output Voltage
  • Rack-Mountable
  • Floating Filament
  • Internal Grid Power Supply (80W Model)
  • Power Factor Correction
  • Closed-loop Emission Control
  • OEM Customization Available

*Note: All specifications are subject to change without notice. Please consult the English PDF version of this datasheet for the most up-to-date revision.

Two Year Extended Warranty & RoHS Compliant Logos CE Marking

80-640W Industrial X-Ray Generators

Spellman’s XRF Series x-ray generator allow for a wide range of input voltages and supply either 80W, 320W or 640W of output power at up to 160kVdc. These lightweight rack-mountable X-ray generators house a miniaturized high voltage system in a solid encapsulated, oil-free design. The XRF Series x-ray generator is designed with a power factor corrected input circuit which reduces harmonic emissions and noise normally associated with other high frequency switching power supplies. The XRF Series x-ray generator incorporates an internal floating filament and a closed-loop emission control circuit for precise regulation of emission current. Remote monitoring and control of voltage, current and filament current is also provided.

Typical uses of the XRF x-ray generator are:

  • X-ray Inspection
  • Non-Destructive Testing



(Ref. 128013-001 REV. R)

Input Voltage:

80W: 90-125Vac at 48-62Hz @ 1.9A

180-264Vac at 48-62Hz @ 0.9A

320W: 180-264Vac at 48-62Hz @ 3.5A

640W: 180-264Vac at 48-62Hz @ 7A

Power Factor:

0.9 or better.

High Voltage Supply:

Output Voltage:

0-160kV, negative polarity.

Output Current:

80W: 0.5mA max. 320W: 2.0mA at 160kV 640W: 4.0mA.

Output Voltage Stability:

Within 0.1% of set value after warm-up period at full load.

Output Voltage Ripple:

80W & 320W: <0.1%, or 160V p-p for high freq. and line freq. at full load.

640W: 0.03% rms <1kHz, 0.75% rms above 1kHz. 

Beam Current Stability

80W: Within 0.1% of set value after 1/2 hour warm-up at constant output setting of 30-160kV and line voltage of 90-125 & 180-264Vac. 

320W & 640W: Same as 80W except line voltage of 180-264Vac.

Filament Supply: Constant current DC filament supply with closed-loop current feedback.

Filament Voltage: 7V rms (high frequency) max.

Filament Current: 5A max., adjustable 0-5.0A by external Filament Limit Programming input.

Floating Grid Power Supply:

Grid Supply: The grid supply controls tube beam current in a closed-loop regulation design.

Grid Voltage: 0 to 1200Vdc.

Grid Voltage Ripple: Less than 1.0V rms at any frequency.

Grid Supply Response: Less than 0.5mA in less than 10ms.

Control and Monitoring:

Analog Control Inputs: Three inputs have internal load resistance greater than 330kohms.

Voltage Programming: 

80W, 320W & 640W:

0 to +10Vdc, where 10.0Vdc = 160kV output.

Beam Tube Current Control:

80W:  0 to +10Vdc, where 10.0Vdc = 0.5mA tube current.

320W: 0 to +10Vdc, where 10.0Vdc = 2.0mA tube current.

640W: 0 to +10Vdc, where 10.0Vdc = 4.0mA tube current.

Filament Current Control:

0 to +10Vdc, where 5.0Vdc = 5.0A filament current.

Analog Monitor Outputs: (See tables for details)

Digital Control Inputs: (See tables for details)

Digital Outputs: (See tables for details)


Output Connector: 

R24 (see owners manual for details)

Input Power Connector:

5-pin male MS-type, Amphenol P/N 97-3102A-18-20P

Control Connector:

25-pin “D” connector, male, chassis-mounted.


0 to +50°C at 10-95% RH, non-condensing. 
Forced convection cooling.


7”H x 19”W x 22”D (17.8cm x 48.3cm x 55.9cm).

Regulatory Approvals:

Compliant to EEC EMC Directive. Compliant to EEC Low Voltage Directive. RoHS compliant


DF - Dual Filament    AT - Arc Trip

GS - Grid Supply IO - Instant ON 

SL - Slides SS(X) - Non Standard Slow Start

Electronic Component (Power Source)

XRF series is intended for installation as a component of a system. It is designed to meet CE standards, with conditions of acceptance often being: customer provided enclosure mounting, EMC filtering, and appropriate protection, and isolation devices. The XRF series is not intended to be operated by end users as a stand-alone device. The XRF series power supply can only be fully assessed when installed within a system, and as a component part within that system.


Output Voltage kV Output Current mA Output Power W Model Number XRFxxx
160 0.5 80 XRF160N80
160 2.0 320 XRF160N320
160 4.0 640 XRF160N640


5 Pin MS Type 7 Pin UTG Type Connection
A 1 Auxiliary (Logic) Line
B 2 Auxiliary (Logic) Neutral
C 3 Ground
D 4 Main (Inverter) Line
E 5 Main (Inverter) Neutral

JB1 160kV XRF 80W, 320W, 640W 25 PIN

Pin Signal Signal Parameters
1 Filament Limit 0-5V = 0-5A Filament Limit
2 High Voltage on Control +12VDC IN = HV ON
3 N/C  
4 N/C  
5 High Voltage On Status Low = HV ON
6 A-Ground Ground
7 kV Monitor 0-10V = 0-160kV
8 Interlock Control +12VDC IN = Interlock Closed
9 N/C  
10 mA Demand 0-10V = 0-100% Rated Output
11 N/C  
12 N/C  
13 D-Ground Ground
14 Fil. Monitor 0-5V = 0-5A
15 N/C  
16 N/C  
17 N/C  
18 N/C  
19 mA Monitor 0-10V = 0-100% Rated Output
20 N/C  
21 +12VDC Out  
22 kV Demand 0-10V = 0-160kV
23 Grid Inhibit/Fil. Select Low = Grid Inhibit
24 N/C  
25 Chassis Gnd (I/O Shield) Chassis Gnd.

160kV XRF 80W, 320W, 640W TERMINAL BLOCK 10 PIN

Pin Signal Signal Parameters
1 Interlock Jumper to TB1-2 to close interlock
2 Interlock Return  
3 kV Monitor 0-10V=0-160kV
4 mA Monitor 0-10V = 0-100% Rated Output
5 Filament Monitor 0-5V=0-5A
6 N/C  
7 HV ON Indicator +15V = HV ON
8 Voltage Mode Indicator Low = Voltage Mode.
9 Current Mode Indicator Low = Current Mode.
10 GND Ground

Tables & Diagrams