DeFelsko PosiTest HHD Verifier
The DeFelsko PosiTest HHD Verifier is a standalone voltmeter used to verify the output voltage of high-voltage holiday detectors (pulse or continuous DC). Portable and battery-powered, it features wide range, simple two-step operation, and comes with a NIST-traceable calibration certificate for field or laboratory checks.
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Designed for quality assurance and calibration routines, this verifier checks whether detectors are delivering the correct voltage (0.5-35 kV). It requires no external power, includes ground wire, and delivers results within the combined tolerances of both devices—ensuring compliance and safety before conducting coating tests.
DeFelsko PosiTest HHD Verifier
The PosiTest HHD Verifier simplifies verification of holiday detectors: connect the ground, apply the probe to the detector electrode, and read the displayed voltage. Lightweight, rugged, accurate to ±5%, and suitable for field or lab, it aids in maintaining confidence in spark-testing equipment performance.
Features
Overview
| Specification | Value / Detail |
|---|---|
| Model | PosiTest HHD Verifier (pulse DC), and HHD C Verifier (continuous DC) |
| Voltage Range | 0.5 – 35 kV (pulse version); 0.5 – 30 kV (continuous version) |
| Resolution | – From 0.5-1 kV: 10 V steps – Above 1 kV: 100 V steps |
| Accuracy | ± 5 % of reading |
| Input Impedance | 1 MΩ |
| Max Input Power Dissipation | 12.5 W |
| Operating Temperature | −20° to +60 °C (−4° to 140 °F) |
| Power Source | 3 × AAA batteries (alkaline) |
| Size | 43 × 5 × 5 cm (17″ × 2″ × 2″) |
| Weight | 476 g (1.05 lbs) including batteries and ground wire |
| Ground Cable | 1.8 m (6 ft) ground wire included |
| Warranty | 2 years |
