Analysis Tech 32-106 Series Intermittent Continuity Tester

Overview

The Analysis Tech 32-106 Series Intermittent Continuity Tester is a precision-engineered, high-speed electrical continuity monitoring system designed for detecting transient open-circuit events in safety-critical wiring harnesses, connectors, sensors, and electromechanical assemblies. It operates on the principle of real-time resistive monitoring: each channel applies a stable, user-selectable DC test current across a continuity loop and continuously measures voltage drop to derive instantaneous resistance. When resistance exceeds a programmable threshold—indicating an intermittent break—the instrument records the event with microsecond-level temporal resolution. Unlike conventional ohmmeters or basic continuity checkers, the 32-106 captures sub-millisecond discontinuities that are otherwise invisible to manual or low-bandwidth test methods. Its architecture is optimized for reliability testing under mechanical stress (e.g., vibration, flexing, thermal cycling), making it integral to aerospace, automotive, defense, and medical device qualification protocols where latent intermittents pose functional or safety risks.

Key Features

• 32-channel independent monitoring with fully configurable per-channel parameters: threshold resistance (0.1–2000 Ω), test current (1–100 mA), and minimum event duration (0.1, 0.5, or 1.0 µs standard; extended ranges available via field-swappable clock modules)
• High-fidelity analog front-end with ≤±5% threshold tolerance and ≤2.5 V compliance voltage, ensuring stable operation across variable load impedances
• Simultaneous real-time event capture and timestamping with internal 100 ns timing resolution (hardware-limited), enabling correlation with external stimuli such as shaker table triggers or thermal ramp profiles
• Modular scalability: multiple 32-106 units can be daisy-chained via 4-way interconnect cables for synchronized monitoring of up to 128 channels (matching the capacity of the 105-series mainframe)
• Integrated WinDatalog software provides real-time waveform visualization, statistical event logging (count, duration, channel ID, timestamp), export to CSV/Excel, and post-test analysis including histogram generation and failure clustering by channel or time window
• Compatible with optional HLV (High-Sensitivity Low-Voltage) amplifiers for milliohm-range detection, supporting applications requiring sub-ohm threshold resolution and minimal circuit loading

Sample Compatibility & Compliance

The 32-106 supports a broad spectrum of passive and semi-active test specimens—including normally-open switches, fiber-optic continuity adapters (via conductive coupling), high-resistance thermistors, hybrid connector assemblies, and multi-pole cable harnesses. Its low-current, low-voltage excitation scheme ensures non-destructive evaluation of delicate contacts and thin-film traces. The system meets general requirements for electromagnetic compatibility per FCC Part 15 Class A and CE Directive 2014/30/EU. While not certified to specific industry standards out-of-the-box, its measurement traceability, data audit trail (via WinDatalog’s session logs and calibration report), and deterministic timing behavior support compliance with ISO/IEC 17025 laboratory accreditation, DO-160 Section 22 (intermittent fault testing), SAE ARP4761 safety analysis workflows, and internal GMP/GLP validation protocols where raw continuity event data is required for root-cause investigation.

Software & Data Management

WinDatalog v5.x serves as the native control and analysis platform. It establishes bidirectional communication over USB or RS-232C, allowing full remote configuration of all 32 channels, real-time status monitoring, and immediate event alerting via on-screen indicators and optional audible tones. All captured events are stored with absolute UTC timestamps, channel identifiers, resistance values at event onset, and duration metadata. The software supports configurable pass/fail criteria per channel, automated report generation (PDF/HTML), and direct integration with LabVIEW via ActiveX controls. Audit-ready features include user login tracking, parameter change history, and immutable session files—enabling alignment with FDA 21 CFR Part 11 requirements when deployed in regulated environments with appropriate system validation documentation.

Applications

• Aerospace wiring harness qualification per MIL-STD-889 and RTCA DO-160G Section 22 (intermittent fault detection during vibration and temperature cycling)
• Automotive ECU connector validation under mechanical shock (SAE J2380) and thermal cycling (J2293)
• Medical device cable assembly release testing per IEC 60601-1 Clause 8.8.3 (mechanical integrity of patient-connected circuits)
• Defense electronics survivability assessment during HALT/HASS sequences
• R&D troubleshooting of MEMS switch reliability, PCB trace fatigue, and solder joint degradation under accelerated life testing
• Production line final test for high-reliability relays, battery disconnect units, and safety interlock circuits

FAQ

What is the shortest detectable intermittent event duration?
The standard 32-106 supports minimum event durations of 0.1 µs, 0.5 µs, and 1.0 µs. Additional durations—including 100 ns—can be enabled using optional field-replaceable clock modules.
Can the 32-106 measure resistance values quantitatively, or only detect threshold breaches?
It performs continuous resistance calculation (R = V/I) in real time but is optimized for event-triggered logging rather than continuous analog output. Quantitative resistance trends are accessible via WinDatalog’s “resistance vs. time” plot mode.
Is calibration traceable to NIST standards?
Yes—each unit ships with a certificate of calibration traceable to NIST, covering channel current sources, voltage sensing, and timing reference.
How does the system handle noisy industrial environments?
Shielded 10-ft input cables (PVC-rated to 105°C, optional high-temp version to 180°C), differential sensing architecture, and adjustable hysteresis in threshold logic minimize false positives from EMI or contact bounce.
Can I integrate the 32-106 into an automated test station?
Yes—WinDatalog exposes COM interface and command-line control options; hardware trigger inputs/outputs support synchronization with PLCs, motion controllers, and environmental chambers.