MNX Series

  • 50kV at 50 or 75 Watt Max
  • 65kV at 65 Watt Max
  • Adjustable Integrated Filament Supply
  • Local and Remote Emission Control
  • CE Marked, UL Recognized


Ask about our X-Ray subsystem capabilities

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50-75W Industrial X-Ray Generators

The MNX Series is the result of Spellman’s exceptional high voltage packaging and surface mount fabrication techniques coupled with proprietary encapsulation technology producing this ultra-compact X-Ray generator module. The MNX powers grounded cathode X-Ray tubes from a variety of well-known manufacturers, featuring a 0 to 50kV/65kV high voltage output @ 2mA limited to 50, 65 or 75 Watts. The MNX uses closed loop filament control circuitry providing highly regulated beam current. The ground referenced low noise dc filament supply operates between 0.3 and 3.5 amps. Offering tight regulation, high stability and low ripple, the MNX provides users local and remote analog control to set beam voltage, emission current and filament current limit.

Typical applications:

Powering grounded cathode X-ray tubes from Kevex, Oxford, RTW, Superior, Varian and Trufocus.

Specifications

(Ref. 128023-001 REV. W)

Input Voltage:

+24Vdc ±10%, for 50W or 75W units

+24Vdc ±1V, for 65kV @ 65W unit

Input Current:

MNX50P50: 4.0 amps, maximum

MNX50P75: 6.0 amps, maximum

MNX50P65: 5.0 amps, maximum

GB Option: 1.0 amp additional, maximum

Efficiency:

80-85%, typical

Output:

0 to 50kV at 0 to 2mA, limited to a maximum of 50 watts or 75 Watts. 0-65kV at 2mA limited to 65 Watts.

Voltage Control:

Local: Internal multi-turn potentiometer to set voltage from 0 to full output voltage.

Remote: 0 to +10Vdc proportional from 0 to full output voltage. Accuracy: ±1%. ZIN: 10Mohm.

Emission Control:<

Local: Internal potentiometer to set beam current between 0 and full output current.

Remote: 0 to +10Vdc proportional from 0 to full output current. Accuracy : ±1%. ZIN: 10Mohm. Filament limit and filament preheat control capability is also provided.

DC Filament Supply:

Current: 3.5A, adjustable limit

Voltage: 5.0 volt limit

Voltage Regulation:

Load: 0.01% of output voltage no load to full load.

Line: ±0.01% for ±10% change in input voltage.

Current Regulation:

Load: 0.01% of output current from 0 to rated voltage.

Line: ±0.01% for ±10% change in input voltage.

Ripple:

0.1% p-p of maximum rated output voltage, 50kV units (50/75W)

0.1% rms maximum rated output voltage, 65kV units (65W)

Environmental:

Operational: 0°C to +50°C

Storage: -40°C to +85°C

Humidity: 0% to 90%, non-condensing

Temperature Coefficient:

0.01% per °C, voltage and current.

Stability:

0.05% per 8 hours after 1/2 hour warm-up.

Voltage and Current Monitors:

0 to +10Vdc proportional from 0 to rated output. Accuracy ±1%.

Dimensions:

50kV Unit: 5.00”H x 2.87”W x 8”D (127.00mm x 72.90mm x 203.25mm)

65kV Unit: 5.00”H x 2.87”W x 9”D (127.00mm x 72.90mm x 228.65mm)

XCC Option: 5.00”H x 2.87”W x 9”D (50/75W units only) (127.00mm x 72.90mm x 228.65mm)

Weight:

6.5 lbs. (2.9kg)

Regulatory Approvals:

Compliant to 2004/108/EC, the EMC Directive and 2006/95/EC, the Low Voltage Directive. UL/CUL recognized, File E227588. Note: MNX65P65 is not UL/CUL recognized. Compliant to 2002/95/EC, RoHS.

OPTIONS

XCC - XRM Compatible HV Cable (50kV only)

5VPM - 0 to 5 Volt Programming and Monitor Scaling

5302 - Mammoflex HV cable for MNX

2001 - Mammoflex HV cable for MNX w/XCC option

X-Ray Tubes

The MNX powers grounded cathode X-Ray tubes from manufacturers such as Varian Medical Systems, Petrick GmbH and others.

cathode X-Ray tubes

See product PDF for more specification and features.

J2 POWER INPUT CONNECTOR

Pin Signal Parameter
1 +24V Input +24 volts @ 5A, max.
2 24V Return (Gnd.) Power Ground

J3 FILAMENT CONNECTOR

Pin Signal Parameter
1 Filament Out 0.3A to 3.5A, 5 volt, max.
2 Filament Return Filament Ground

J4 ANALOG INTERFACE CONNECTOR MALE 15 PIN MINI "D"

Pin Signal Parameters
1 Monitor Return Signal Ground
2 Voltage Monitor 0-10 volts = 0 to full scale, Zout=1KΩ
3 Current Monitor 0-10 volts = 0 to full scale, Zout=1KΩ
4 Interlock Output Connect 12V HVON bulb to pin 15 to enable
5 +10 Volt Reference +10 Volts at 1mA, maximum
6 Filament Monitor 1 volt = 1 amp, Zout=1KΩ
7 Voltage Program Input 0-10 volts = 0 to full scale, Zin=10MΩ
8 Local Voltage Program* 0-10 volts, screwdriver adjust
9 Filament Limit Setpoint* 1 volt = 1 amp, screwdriver adjust
10 Current Program Input 0-10 volts = 0 to full scale, Zin=10MΩ
11 Local Current Program* 10 turn pot, screwdriver adjust
12 Not used (+24V Out for Interlock) (Optional Interlock configuration)
13 Not used (Interlock Coil) (Optional Interlock configuration)
14 Filament Preheat Setpoint* 1 volt = 1 amp, screwdriver adjust
15 Interlock Return Interlock Ground

 *Denotes 10 turn potentiometer located on front panel

J1 HIGH VOLTAGE OUTPUT CONNECTOR

Spellman drywell type detachable connector.

Standard: A one meter (39.4”) long polyethylene mating high
voltage cable is provided.

5302: A one meter (39.4”) long Mammoflex mating high voltage
cable is provided, SHV p/n 201946-007

2001: A one meter (39.4”) long Mammoflex mating high voltage cable
is provided, compatible with the XCC Option SHV p/n 201946-002

How to Order:

Sample model number:
50 Watt unit: MNX50P50
65 Watt unit: MNX65P65
75 Watt unit: MNX50P75

Options are added to the model number as follows:
MNX50P50/XCC

Tables & Diagrams

DIMENSIONS: in.[mm]

50KV

MNX X-Ray Generator (Image 1)

50KV WITH XCC OPTION

MNX X-Ray Generator (Image 3)

MNX X-Ray Generator (Image 2)

6KV5

MNX X-Ray Generator (Image 5)

MNX X-Ray Generator (Image 6)

CE ROHS RU Marking

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