Holiday Detector PoroTest-HHD
เครื่องทดสอบโพรงอากาศคุณภาพของสีบนคอนกรีต
The PosiTest® HHD is a high-voltage DC Pulse Holiday Detector locate small defects and discontinuities (called “pinholes” or “holidays”) in a protective coating system applied to a conductive substrate. With adjustable output from 0.5-35kV the HHD can be used to inspect non-conductive coatings thicker than 500 μm (20 mils). Audible and visual alerts notify the operate when flaws are detected.
Features
- Conforms to ASTM D4787/D5162/G62, ISO 29601, NACE SP0188/SP0274/SP0490, AS3894.1
- Includes NIST Traceable Long Form Calibration Certificate
- Lightweight, ergonomic design provides comfortable all-day use, reducing operator fatigue
- Voltage calculator feature — choose one of 11 international standards, and input the coating thickness to automatically calculate the required test voltage
- Choose from a wide range of rolling spring and flat wire brush electrodes or use electrodes from other manufacturers with optional adaptors — custom sizes available upon request
- Industry-standard connectors and adaptors for compatibility with nearly all existing electrodes
- Rugged, environmentally sealed ABS plastic enclosure is weatherproof, dustproof and shockproof
- Included Pelican Storm case with custom foam inserts for superior protection
- Two year warranty
- Removable Smart lithium-ion battery provides power for up to 40 hours of continuous measurement
- 7.6 m (25') ground (earth) cable with locking connector and spring clamp
- Shock proof/creep proof — internally sealed to minimize creep distance to high voltage components. Designed in accordance with IEC 61010-1
- Built-in certified voltmeter (crest meter, jeep meter) displays and regulates the voltage at the electrode
Complete Kit
- PosiTest HHD is supplied as a complete kit including:
- 7.6 m (25') ground (earth) cable with ground clip
- Li-ion battery pack with built-in charge state indicator
- Smart charger with universal AC voltage input
- Stainless steel fan brush
- 50 cm (20" ) extension rod with thumb screw
- Shoulder strap
- Instruction Manual
- Durable Pelican Storm case
- Long Form Certificate of Calibration traceable to NIST
- Two year warranty
Specifications
Output Voltage Range |
0.5 – 35 kV |
Output Voltage Adjustment |
0.5 kV – 1 kV: 10 Volt Steps
1 kV – 35 kV: 100 Volt Steps |
Output Accuracy |
+/-5% |
Pulse Duration |
10 µs |
Pulse Repetition Rate |
30 Hz |
Coating Thickness Range |
up to 20 mm / 780 mils (Based on NACESP0274-2011 recommendations) |
Typical Battery Life |
Based on selected voltage and load
Ø 12” Rolling Spring @ 10kV, 40 hrs.
Ø 40” Rolling Spring @ 10kV, 30 hrs. |
Operating Temperature |
-20° to 60°C (-4° to 140°F) |