SQUIB TESTER
 Resistance and diode tester

Model 101-SQB-RAK squib tester

Documentation

Product Literature:  Squib Testers Product Sheet

Typical Applications

Missiles and bombs: • Missiles Squib circuits • Missile harness testing (internal or external) Launchers: • Thrust vector motor control and feedback elements Generic: • Resistive and diode circuit paths • Measure continuity and isolation between any circuit paths available on external connectors Fuzes: • Fuzes in sensor-fuzed weapons • Fuzes in missile simulators and targets

PRODUCT OVERVIEW

Designed for testing squibs and other electrically detonated ordnance, Space Electronics' 101-SQB series of squib testers can test diodes and measure resistances with great accuracy while dramatically reducing the risks of accidental detonations because of their built-in fail-safe modules.

Our squib testers are specialized fail-safe electronic testers that measure components of electro-explosive circuits, using a test current which is a 1000 times less than a conventional precision low resistance tester.

Our 101-SQB squib tester comes in three versions:
- The rack-mounted 101-SQB-RAK for integration in a rack with an isolated power system.
- The tabletop 101-SQB-BTP for benchtop testing.
- The portable 101-SQB-PTU. Stand-alone unit.

The rack-mount version of our squib tester is specifically designed to be implemented as the core of a multi-channel tester.

KEY BENEFITS

• Detect missing or broken wires in the 4 wire test leads to the UUT. Diagnose and locate wiring errors that other testers would show as a resistance or open circuit reading.

• Fail-safe module limits test current. Since excessive test current could cause bodily injury or death, protection for all modes of failure or operator error is built into the squib tester. A sealed, tamperproof, fail-safe module guarantees that the test current will be less than 10 mA even under worst case conditions of simultaneous failure of multiple circuit elements.

• Quick Reading. Squib tester stabilizes readings in less than 2 seconds. Reading is truly stable and clearly legible for operator (no interpretation between fluctuating values).

• Measurement Reading Ease. Our squib testers have a large format LCD display, with clear indication of range being measured, status of battery, status of calibration, and large format reading values including units. Reduces operator error through misreading.

• Ease of operation - Direct reading. 4-wire test leads arrangement, which automatically compensate for lead resistance.

• Genuine Portability (101-SQB-PTU version) - These squib testers are housed in a small "military" type case with a carrying handle and space for storage of test leads.

• Weatherproof enclosure (101-SQB-PTU version). The squib tester is enclosed in a weatherproof case that seals the electronics from damage from water spray, humidity, and dust environments.

• Digitally calibrated. Calibration of the squib tester is performed digitally, with no requirement to open the meter or trim internal or external potentiometers. The calibration kit consists of software, UUT cable, and all necessary interfaces to connect the meter to a regular Windows-based desktop or laptop computer.

• Optional calibration standards available. This provides a set of NIST traceable resistors that have been calibrated to the ANSI/NCSL Z540-1 standard.

• Fiberoptic Interface is standard on all squib tester units. It is used for calibration, and it can also be used with a separate computer for data logging and integration into a rack-mount multi-channel tester. Connection is fiberoptic to ensure safe meter integration and physical separation between the computer's power system and the squib.

• Isolated Power Supply. The power supply of our squib tester is 100% floating for safety isolation between power source and the squib. This eliminates current leakage between the UUT and earth ground, and between the meter and earth ground. As a consequence the UUT can be earth-grounded without corrupting measurement accuracy.

• Immune to differences in lead resistances. Our squib testers are specifically designed to withstand unequal lead resistances on the 4 wire cable lines.

PHYSICAL SPECIFICATIONS OF OUR SQUIB TESTERS

For all squib testers:
• Terminal Configuration: 4-wire
• Power: Rechargeable internal battery for 101-SQB-PTU and 101-SQB-RAK squib testers, external power supply for 101-SQB-BTP squib tester.
• Case: "Military" weatherproof type with handle and cable storage for 101-SQB-PTU squib tester, 2U (19") rack for 101-SQB-RAK squib tester, and rugged aluminum case for 101-SQB-BTP squib tester.

Custom options are available such as voltage and current measurement. Please contact us with your specifications.

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