DF/FF Series 3-4kW Industrial X-Ray Generators

 La serie DF/FF de generadores de rayos X de Spellman cuenta con un diseño de inversor nuevo el cual incorpora transistores IGBT para conmutación de energía y proporciona nuevos niveles de confiabilidad. Adicionalmente, el rediseño de la fuente de alimentación del filamento interno de la DF/FF elimina el ruido audible en los niveles de operación normales funcionando a una frecuencia más alta. La serie DF/FF utiliza una fuente de corriente de onda senoidal, producida por medio de circuitos resonantes en serie con cambio de fase a frecuencias de conmutación mayores de 20 kHz para generar CD de alto voltaje. Esta técnica elimina la indeseable radiación electromagnética normalmente asociada con los reguladores de conmutación y control de potencia. La alta eficiencia de estas unidades permite el enfriamiento por aire en un chasis con altura de 5 1/4” (133.35 mm, 3U).

Aplicaciones típicas:

• Difracción de rayos X (XRD)
• Fluorescencia de rayos X (XRF)

Especificaciones

^{(Ref. 128001-001 REV. T)}

Input Voltage:

220Vac ±10%, 50 or 60 Hz, single phase (three phase optional).

Input Current:

3kW: 220Vac @ 29.5A, single phase
208Vac @ 12.8A/phase, three phase

4kW: 220Vac @ 39.3A, single phase
208Vac @ 17.0A/phase, three phase

Output Voltage:

DF3: 0 to 60kV negative polarity.

FF3: 0 to 60kV positive polarity.

Other output voltages are available.

Output Current:

DF3: 0 to 80mA.

FF3: 0 to 100mA. Other output currents are available.

Maximum Output Power: 

3kW (4kW optional).

Output Voltage Regulation:

Load: 0.005% of rated output for full load change.

Line: 0.005% of rated output over specified input range.

Temperature Coefficient: 50 ppm/°C (20 ppm/°C optional).

Long Term Stability: 0.01%/8 hours.

Emission Current Regulation:

Load: 0.01% of rated output for a 10 to 60kV change.

Line: 0.005% of rated output over specified inputs.

Temperature Coefficient: 50 ppm/°C

Long Term Stability: 0.01%/8 hours.

Ripple:

0.03% rms <1kHz, 0.75% rms above 1kHz. 

Environmental:

Temperature Range:

Operating: 0°C to 40°C

Storage: -20°C to 85°C

Humidity:

10% to 90%, non-condensing.

Filament Voltage:

DF: 12Vac

FF: 12Vdc

Filament Current:

5A (up to 12A max available).

Dimensions:

51/4”(3U) H x 19“ W x 22” D (13.3cm x 48.3cm x 55.9cm).

Weight:

90 lbs (40kg).

Regulatory Approvals:

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

ADDITIONAL FEATURES

Water Flow Switch:

A 24Vdc signal is available on the rear panel to turn on the cooling water to the X-ray tube. This signal can be enabled either when control power is on or when the high voltage is turned on. (Customer must specify).

Fail Safe Interlock:

A 24Vdc signal is available on the rear panel to energize an external X-ray on lamp. This signal is energized when the high voltage is turned on. High voltage will not enable if this circuit is open. (A 220Vac signal is optional).

Preheat and Ramp:

Automatic preheat and ramp control circuits are provided which ramp the kV and mA slowly to set levels. kV ramps in approximately 10 seconds while mA ramps in approximately 20 seconds.

Output Connector:

75kV, 3 conductor Federal Standard X-ray connector. -60kV is connected to terminal “C”. Terminals “S” and “L” are jumped together. The filament output is connected between terminals “C” and “S”. Other configurations are optional. (On the FF3, all output connections S, L, & C are connected together).

Remote Signal Connector:

Remote interface is available via a 50 pin mini D connector. Extensive remote programming and monitoring is provided. 

OPTIONS

RS232 - RS232 Interface  
220FSI - 220Vac Fail Safe Interlock  
208-3P - 208Vac Three Phase Input

Electronic Component (Power Source)

DF/FF 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 DF/FF series is not intended to be operated by end users as a stand-alone device. The DF/FF series power supply can only be fully assessed when installed within a system, and as a component part within that system.

JB1 MINI D CONNECTOR 50 PIN

Tablas y Diagramas

DIMENSIONS: in.[mm]

Cost reduced version for OEM quantities available, contact Sales.

Frequently Asked Questions

Application Notes AN-12 – The Benefit of Using a Current Source to Power X-Ray Tube Filament Circuits
Application Notes AN-14 – The Limits of Front Panel Digital Meters
Application Notes AN-01 – Fundamentals of X-Ray Generator – X-Ray Tube Optimization