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DeFelsko PosiTest HHD C Instruction Manual

High voltage holiday detector
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High voltage Holiday Detector
Instruction Manual

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Summary of Contents for DeFelsko PosiTest HHD C

  • Page 1 High voltage Holiday Detector Instruction Manual...
  • Page 2 500 µm (20 mils). Designed for maximum utility, the powerful Li-on batteries of the PosiTest HHD C fit neatly within the wand handle eliminating the need for a separate battery box—reducing weight and eliminating operator fatigue.
  • Page 3 For safe PosiTest HHD C operation: DO NOT — Use in wet or rainy conditions. Use if you are fitted with a pacemaker. Use without first connecting the ground (earth) cable. Touch or allow anyone else to touch the object being tested.
  • Page 4 Smart Battery charger with universal AC voltage input Hard shell case (not shown) Accessories A variety of optional and replacement accessories are available to help you get the most out of your PosiTest HHD C. See www.defelsko.com/hhd to learn more.

  • Page 5: Quick Start

    Quick Start The PosiTest HHD C powers-up when the power button pressed. To preserve battery life, it powers down after approximate- ly 5 minutes of no activity. Alternatively, hold the power button for 5 seconds for immediate power down. All settings are retained.
  • Page 6 PosiTest HHD C. 4. The PosiTest HHD C should power on and display the test voltage. 5. Press and hold the trigger on the PosiTest HHD C to turn on the high voltage and activate Detection Mode.
  • Page 7 6. Touch the electrode to the bare ground wire or grounded substrate of the part being inspected. 7. The PosiTest HHD C audible and strobe alerts should activate. NOTE: 8. Release the trigger to turn high voltage OFF and return the PosiTest HHD C to Standby Mode, then remove the electrode from the part being tested.
  • Page 8 1mm diameter hole drilled in the center. Ensure that the PosiTest HHD C detects the holiday or hole in the shim, and that it does not alarm over areas without defects or holidays.
  • Page 9 Detection Mode could leave the surface charged. Touching a charged surface could result in electrical shock. Calibration and Verification The PosiTest HHD C is shipped with a Certificate of Calibration Calibration showing traceability to a national standard. DeFelsko recommends customers establish calibration intervals based upon their own experience and work environment.
  • Page 10 PosiTest HHD C to a voltage within the 500V – 1,000V range in 10V steps, and 1kV – 30kV range in 100V steps. The PosiTest HHD C integrated voltmeter is accurate to ± 5% of the generated test voltage.
  • Page 11 Check Electrode Connections: With the detector powered OFF, PosiTest HHD C will not detect holidays check all connections. Ensure the electrode is fully engaged within the electrode collar of the PosiTest HHD C and the thumb screw is secured. Check Ground Connections: With the detector powered OFF, remove the ground cable and then fully reinsert it into the ground socket.

  • Page 12: Returning For Service

    4. Press and hold the trigger. 5. Touch the electrode to ground (earth) to simulate a holiday. 6. If the PosiTest HHD C does not activate the Audio and Strobe alarms or create an arc, remove the batteries and return the PosiTest HHD C without the batteries for service.
  • Page 13 High voltage Holiday Detector Instruction Manual...
  • Page 14 Introduction The PosiTest High voltage Holiday Detector (HHD) is a Pulse Type DC Holiday Detector designed to locate small defects and discontinuities (called “pinholes” or “holidays”) in a protective coating system applied to a conductive substrate. High voltage holiday detectors are commonly used to inspect non-conductive coatings thicker than 500 µm (20 mils).
  • Page 15 Operational Safety IMPORTANT: DeFelsko recommends that the operator read and fully understand this manual prior to using the PosiTest HHD. WARNING: This equipment generates high voltages up to 35,000V (35kV). Accidental contact with the electrode may result in an electric shock. Always keep the working end of the electrode away from your body and never touch it when activated.
  • Page 16 Li-ion Battery Pack with built-in charge state indicator Smart Battery charger with universal AC voltage input Hard shell case (not shown) Accessories A variety of optional and replacement accessories are available to help you get the most out of your PosiTest HHD. See www.defelsko.com/hhd to learn more.
  • Page 17 Fan brush Li-Ion Battery b Thumb screw c Anti-rotation tab High voltage Holiday Detector d Shoulder strap attachment points www.defelsko.com Made in USA e Electrode rod f Lock gate button for electrode rod g Battery compartment h Battery i Battery cover...
  • Page 18 Quick Start The PosiTest HHD powers-up when the power button is pressed. To preserve battery life, it powers down after approximately 5 minutes of no activity. Alternatively, select from the menu for immediate power down. All settings are retained. 1. Review Operational Safety (pg. 2). 2.
  • Page 19 Grounding Ensure the ground (earth) cable is uncoiled and fully extended. Connect the ground clip to an exposed (uncoated) area of the part, or grounding rod. If no ground is available, a trailing ground wire, grounding collar, or grounding mat may be used. Verify that the instrument is properly grounded by touching the electrode to the grounded substrate, ensuring that the audible and visual alerts are properly triggered.
  • Page 20 8.Release the safety trigger to turn high voltage OFF and return the PosiTest HHD to Standby Mode. The PosiTest HHD is now ready to use. Adjusting the Test Voltage 1.With the detector powered ON and in Standby Mode, press to open the menu and then select the Voltage Set icon 2.The detector will display the test voltage.
  • Page 21 Adjustment using the built-in Voltage Calculator The Voltage Calculator simplifies the task of setting the correct test voltage for a particular coating system. It prompts the user to enter the coating thickness on the part to be tested and the standard the user is conforming to, and automatically calculates the correct test voltage.

  • Page 22: Instrument Operation

    Adjusting the Sensitivity By default, the Sensitivity of the PosiTest HHD is factory-set to ensure that the instrument alarms when holidays are detected, while ignoring ‘false positives’ due to surface moisture, electrode movement, etc. For most applications, the default sensitivity setting is ideal.
  • Page 23 Mode, press and hold the power button and activate and hold the safety trigger. The lightning bolt icon will appear at the bottom of the display and the PosiTest HHD will show the test voltage being generated. 6. Continue holding the safety trigger and release the power button 7.
  • Page 24 Calibration and Verification The PosiTest HHD is shipped with a Certificate of Calibration Calibration showing traceability to a national standard. DeFelsko recommends customers establish calibration intervals based upon their own experience and work environment. A detector used frequently, roughly, or in harsh operating conditions may require a shorter calibration interval than if used less frequently and handled with care.
  • Page 25 Strobe Alarm: The HHD uses a high-intensity white LED to alert the operator when a holiday is PosiTest detected. WARNING: This visual alert may affect operators who are susceptible to photosensitive epilepsy or other Strobe photosensitive conditions. The strobe alarm can be turned ON or OFF: Select the strobe icon to toggle the strobe alarm state.
  • Page 26 Made in USA Li-Ion Battery High voltage Holiday Detector The battery also features a built-in charge state indicator. Press www.defelsko.com Made in USA the button on the battery to display the remaining power. The charger automatically switches between 110V and 240V AC making it ideal for use worldwide.
  • Page 27 IMPORTANT: Keep all electrical contacts clean. PosiTest HHD Troubleshooting Check Electrode Connections: With the detector powered OFF, PosiTest HHD will not detect holidays check all connections. Ensure the electrode rod is fully engaged within the barrel of the PosiTest HHD and the lock gate is engaged.
  • Page 28 Accessories...

  • Page 29: Technical Data/Specifications

    Technical Data/Specifications Type: Pulse DC (30Hz) Range: 500 – 35,000V Resolution: 500 – 1,000V in 10V increments, 1kV – 35kV in 100V increments Output Accuracy: +5% Operating Temperature Range: -20° to 60° C (-4° to 140° F) Battery: Rechargeable Smart Li-ion battery Battery Life: Depends on test voltage and electrode load Weight: 1.8 kg (4 lbs.) with battery (no electrodes) Dimensions (no attachments): 64 cm x 6.4 cm x 13 cm...
  • Page 30 © 2021 DeFelsko Corporation USA All Rights Reserved This manual is copyrighted with all rights reserved and may not be reproduced or transmitted, in whole or part, by any means, without written permission from DeFelsko Corporation. DeFelsko, PosiTest, PosiTector, and PosiSoft are trademarks of DeFelsko Corporation registered in the U.S.

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