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PMX70

Compact Space Saving Modular Format
Fast Rise/Fall Time Minimize Patient Exposure
High Speed Starter, Boost/Brake Capability
Ethernet/RS-232 Interfaces

Certifications & Compliance

The PMX70 is Spellman’s new high performance X-Ray generator designed to power Varex Mammography X-Ray tubes. It features a 12kW peak high frequency inverter and high voltage section complete with a smart learning filament power supply and high speed starter. State of the art power conversion technology provides stable and accurate X-Ray tube high voltage with fast rise and fall times. Ethernet and RS-232 interfacing provides easy system integration. Preloaded X-Ray tube parameters, easy access interlocks and I/O connections, and internal generator diagnostics. Optional GUI utility software is also offered to help with initial system integration.

Specifications

Specifications

^{(Ref. 128113-001 REV. A)}

Input Voltage:
230Va c ±10%, single phase, 50Hz/60Hz
Input Current:
30 amps, customer to fuse.
Mains Contactor – not provided.
Customer is responsible for mains safety disconnection.
Less than 30 amps over a typical scan is defined as following:
Due to unknown line impeadance, customer supllied external inductors 100uH to 300uH in series with input connections, (200uH to 600uH total), may be required to keep rms currents below 30 amps and to avoid erroneous circuit breaker trips. Spellman can recommend appropriate inductors as required.
Output (Tube) Voltage
Output Voltage Range:
25kV to -70kV
Polarity:
Negative output polarity; to drive rotating anode, floating cathode X-Ray tube (Varex M-1581).
Accuracy:
2% (measured per IEC60601-2-45)
Reproductibility:
<0.5%
Output (Tube) Current/Power
Output Current Range:
10mA to 200mA
Output Power:
12kW peak, 400 watt average.
Duty Cycle:
25%. A typical scan being at fixed settings in the range of 40kV- 70kV and 16mA-200mA. Pulsed operation is supported.
Accuracy:
< ±10% on exposure less than 10ms (measured per IEC60601-2-45)
Rise Time:
1-2 milliseconds, typical (HV cable dependent). Fall time is load dependant, and the HV cable is a significant factor. The HV cable which is not provided with the PMX70, has a maximum length of 8 feet (2.4m).
Fall Time:
<10ms with a HV cable length of 8 feet (2.4 meters)
Exposure Time (Loading Time):

Maximum Single Exposure Time:
20 seconds

Shortest Single Exposure Time:
4ms
Loading time accuracy:
±3% +1ms (measured per IEC60601-2-45)
Maximum mAs:
3200mAs
Exposure Timer:
4ms-20 seconds
Reproductibility:
<0.5%
Filament Configuration:

AC high frequency filament drive:
self-corrected filament preheat settings with closed loop emission
control and smart learning algorithm.

Filament Output:
0-6 amps at a compliance of 5.5 volts, maximum.
High Speed Starter:
High speed (360Hz) starter configured via the serial interface. Boost and Brake capability provided.
AC Input Connector:
Two position terminal block
System Interface Connector:
25 pin male D connector
Rotor Interface Connector:
Four position terminal block
Tube and Interlock Interface Connector:
16 pin terminal block
High Voltage Connector:
Claymount CA-11 type or equivalent.
Communication Interface Connector:
Ethernet, RJ45 jack
Grounding Point:
M5 ground stud provided on chassis
Environmental:
Temperature Range:
Operating: 10°C to 40°C
Storage: -40°C to 85°C
Humidity: 20% to 85%
RH, non-condensing.
Cooling:
Forced air, Internal fan
Dimensions:
10.08˝ H X 19.49˝ W X 10.75˝ D (256mm x 495mm x 273mm)
Weight:
48.5 pounds (22.0kg)
Rotational Capability:
Capable of working on a rotating gantry with a nominal rotating speed of 0.5 Hertz.
Regulatory Approvals:
Designed to comply with IEC 60601. RoHS Compliant.
Customer provided external EMC filter may be required to meet CE/EMC specifications.
X-Ray Tube Compatability:
Varex M-1581

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