Valhalla Scientific 4650A Digital Igniter Tester

The Valhalla Scientific 4650A Digital Igniter Tester is a programmable instrument for accurate and reliable testing of igniters across multiple resistance ranges. The unit features a 20-digit digital display and status LEDs for clear result indication, with IEEE-488 interface support enabling integration into automated test systems and remote operation. Three selectable measurement ranges deliver high-resolution, low-current testing optimized for igniter applications while limiting test currents to ensure safety during volatile device evaluation.

– Technical Specifications

Display and Interface
• 20-digit digital display with status LEDs
• IEEE-488 interface for automated systems and remote data acquisition

Resistance Measurement Ranges
• Range 1: 10 µΩ maximum input resolution; ±0.015% of range accuracy (±0.1% secondary accuracy); 5 mA test current
• Range 2: 100 µΩ maximum input resolution; ±0.015% of range accuracy (±0.1% secondary accuracy); 500 µA test current
• Range 3: 1 mΩ maximum input resolution; ±0.015% of range accuracy (±0.1% secondary accuracy); 50 µA test current

– Key Features

• Current-limited test outputs protect against hazardous igniter devices
• Multi-range configuration accommodates low-resistance measurements from 10 µΩ to 1 mΩ sensitivity
• High-precision accuracy (±0.015% of range) for critical igniter resistance verification
• IEEE-488 connectivity supports integration with ATE and data logging systems
• Programmable operation for repeatable test sequences and automated workflows

– Typical Applications

Primarily designed for testing igniters in aerospace, defense, and pyrotechnic applications where resistance measurement accuracy and safety are critical. The unit’s current-limited design mitigates risks when evaluating potentially volatile components.

– Compatibility & Integration

The IEEE-488 interface enables integration with standard automated test environments and remote control systems. Equipment must be properly grounded and operated outside explosive atmospheres or environments containing flammable gases and fumes.