DC Holiday Detector
Porosity
- Elcometer - 266
ANSI/AWWA C213, AS 3894.1, ASTM C 536, ASTM C 537, ASTM D 4787,…
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Elcometer 266 Holiday Detector
The Elcometer 266 holiday detector can be used to test porosity on coatings up to 7.5mm (300 mils) thick and is ideal for inspecting coatings on pipelines and other protective coatings.
This holiday tester features a built-in voltage calculator which will determine and set the correct test voltage based upon the test standard and the thickness of the coating being tested.
- User Friendly
The voltage calculator automatically sets the correct voltage from your coating thickness value. No need to use look up tables. - Safe
Featuring a dual safety switch on the handle to avoid accidental switch on and specialised ribbing, the Elcometer 266 Holiday Detector provides superior protection. - Versatile
To change the maximum voltage range, select a different handle; 5kV, 15kV or 30kV DC or 30kV DC continuous.
Models
| Images | Models | Descriptions |
![]() | D266----4 | Elcometer 266 Holiday Detector |
![]() | T26620033-1 | Elcometer 266 Probe Handle Voltage DC5 (0.5 - 5kV) |
| T26620033-2 | Elcometer 266 Probe Handle Voltage DC15 (0.5 - 15kV) | |
| T26620033-3 | Elcometer 266 Probe Handle Voltage DC30 (0.5 - 30kV) |
Features
- the voltage calculator automatically sets the correct voltage from your coating thickness value
- Adjustable Voltage:
- 0.5kV - 1kV in 50V steps
- 1kV to 30kV in 100V steps
- Dual safety switch on the handle to avoid accidental switch on (Grey/orange probe handles only)
- Internal Voltmeter/ Jeep tester ensures that the test voltage equals the selected voltage
- Visual and audible alarms, Bright LEDs on the handle, as well as a loud buzzer, clearly indicate when a holiday is detected
- To change the maximum voltage range, select a different handle; 5kV, 15kV or 30kV DC or 30kV DC continuous
- A wide range of probe brushes and rolling springs available
Safety Features
- Dual safety switches on handle to avoid accidental switch on. 2-stage safety switch ensures that if the Elcometer 266 Holiday Detector handle is not gripped, the handle will switch off.
- Specialised ribbing provides superior protection while an optional second hand grip is ideal for two handed use. This holiday detector has been specifically designed to meet standard EN61010.
- The speaker on the holiday tester clearly emits a ticking noise to indicate that there is a voltage at the handle.
- A loud audible alarm is activated when a spark is detected. The beep volume can also be adjusted to ensure it can be heard - even in noisy environments.
Standards
ANSI/AWWA C213, AS 3894.1, ASTM C 536, ASTM C 537, ASTM D 4787, ASTM D 5162-B, ASTM G 62-B, BS1344-11, DIN 55670, EN 14430, ISO 2746, ISO 29601, JIS K 6766, NACE RP0274, NACE RP0188, NACE RP0190, NACE RP0490, NACE SP0188, NACE SP0490
| Elcometer 266* | D266----4 |
| High Voltage Output Accuracy | ±5% or ±50V below 1000 Volts |
| Operating Temperature | 0°C to 50°C (32°F to 120°F) |
| Power Supply | Rechargeable Battery Pack: battery fully charged within 4 hours |
| Measured Current Flow Accuracy | ±5% of full scale ; 0 - 100μA maximum Output Current |
| Typical Battery Life - Backlight Off (On) | DC5: 40 (20) hours DC15: 20 (15) hours DC30: 10 (8) hours |
| Instrument Case Dimensions | Waterproof, ABS case: 520 x 370 x 125mm (20.5 x 14.5 x 5”) |
| Weight | Base unit (including battery pack): 1.2kg (2.7lb),Handle: 0.6kg (1.3lb) |
| Packing List | Elcometer 266 DC Holiday Detector, battery pack, curly connection cable for high voltage handle, 10m (32") signal return lead, battery charger with UK, EUR, US and AUS plugs, band brush, shoulder strap, tough plastic carry case and operating instructions |
* The Elcometer 266 does not include the probe handle; please select the required handle from the accessories
Certificate: Optional Calibration Certificate available.










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