The PG1275F test system from Montena is designed for Conducted Susceptibility testing of 28V DC electrical power systems in armored vehicles and military land platforms, in full compliance with the stringent requirements of the MIL-STD-1275F military standard. The system provides an integrated solution to test the immunity of Equipment Under Test (EUT) against voltage surges and spikes.
Key Features
- Full Military Standard Compliance: Specifically designed to satisfy MIL-STD-1275F requirements.
- High Current Capability: Supports continuous operating current up to 16A, expandable up to 400A using the DM400 external diode module.
- Computer Control & Automation: PC connectivity via RS232 or USB interfaces with dedicated software support for measuring transient process parameters.
- Flexible Installation: Suitable for mounting in a standard 19″ rack or as a standalone unit with a protective enclosure.
Technical Specifications
Parameter | Specification |
Reference Standard | MIL-STD-1275F |
EUT Operating Voltage | 28V Nominal (Min: 23V, Max: 33V) |
Tested Phenomena | Injected voltage spikes, Injected voltage surge |
Max Open-Circuit Voltage (Spikes) | 500 V |
Max Stored Energy (Spikes) | 1 J |
Rise Time (Spikes) | < 50 ns (typical open circuit) |
Frequency (Spikes) | 20 kHz to 500 kHz |
Max Open-Circuit Voltage (Surge) | 110 V |
Max Stored Energy (Surge) | 2.6 kJ |
Pulse Duration (Surge) | 500–505 ms (including pulse tail) |
Output Impedance (Surge) | < 45 mΩ (DC) + 300 µH |
Max Operating Current (EUT) | 16 A (expandable up to 400 A with DM400 module) |
Remote Control Interface | RS232, USB |
Power Supply | 90–264 Vac / 47–63 Hz / 650 VA |
Operating Temperature | 10°C to 40°C |
Dimensions (L x W x H) | 19″ Rack version (9U): 630 x 485 x 405 mm With Enclosure: 630 x 530 x 485 mm |
Weight | 40 kg (Rack version); +18 kg with enclosure |
Accessories & Options
- SW1275-F Automation Software: Dedicated application for full test setup automation according to MIL-STD-1275E/F standards.
- DM400 Separation Diode Module: External high-current diode unit (up to 400A) for surge testing on high-power power supply lines (Dimensions: 280 x 230 x 170 mm, Weight: 7 kg).
- Additional Test Auxiliary Equipment: Line Impedance Stabilization Networks (LISN), Decoupling Capacitors, Differential Voltage Probes, and Oscilloscopes.
Key advantages of the Montena PG1275F test system over market competitors
The montena PG1275F test system offers several key advantages over competing market solutions (such as general-purpose programmable power supplies or multi-standard EMC generators):
- Dedicated “All-in-One” Architecture for MIL-STD-1275F: Unlike signal generators or multi-disciplinary power supplies requiring complex waveform configurations and external impedance-matching networks, the PG1275F is specifically engineered to generate both transient types (spikes up to 500V and surges up to 110V) within a single 19-inch enclosure, fully compliant with standard requirements.
- High Stored Energy Capability and Low Output Impedance: The system provides up to 2.6kJ of stored energy during surge pulses with extremely low output impedance (less than 45mΩ DC + 300µH). This ensures that the pulse injected into the Equipment Under Test (EUT) maintains the required waveform and voltage profile defined by the standard, even under heavy military electrical loads.
- Current Expansion Up to 400A: The generator includes an internal decoupling diode rated for 16A. While many competing solutions are constrained by lower operating currents, montena offers an optional external module (DM400) that enables continuous line surge testing at high operating currents up to 400A.
- Full Automation and Automated Reporting (SW1275 Software): The dedicated control software automatically measures and calculates transient parameters (rise time, transferred energy, peak voltage) and generates military compliance test reports, eliminating the need for complex manual oscilloscope waveform analysis.
- Full Compliance with Repetitive Surges: Revision F of the standard mandates a continuous series of pulses (5 pulses spaced at 500ms intervals). The PG1275F is designed for rapid capacitor bank charging and discharging, preventing voltage drops or thermal degradation during fast pulse sequences.
