Spy® model 780 portable dc holiday detector DIAGRAM 1: Shows the method when the pipe is on wood skids or hanging from pipe slings; attach the holiday detector ground cable directly to the uncoated substrate (pipe cutback) with a clamp and also a grounding rod with a grounding cable attached to the pipe cut back to complete the circuit
portable dc operating - libertysales. net Prior to each use of the Model 780 DC Holiday Detector it is important to perform a Field Calibration to verify that the required voltage setting for the coating thickness will accurately detect defects (holidays) in the coating
SPY 780 Operating Instructions Manual | Manualzz The Model 780 DC Holiday Detector is a low voltage (1-5kv) detector designed specifically for thin film epoxy coatings The output voltage of this detector is normally D C (direct current)
Portable Holiday Detectors - Manuals+ A brief description of the steps necessary to operate a SPY®Ã Model 780, 785 or 790 holiday detector is presented here with detailed steps following later in the manual
SPY Model 780 Portable Holiday Dectector - Proline Global The Spy 780 Holiday Detector is used to detect pinholes and imperfections in pipe coatings, specifically 4-50 Mils FBE Thin Film Coatings Used with a spring or brass brush this unit gives audio and visual signals when a hole in the pipes coating is detected
Model 780 (1-5 Kv) – Portable – Tremco Pipeline Equipment Over a range of two inch through sixty inch pipe the detector output voltage automatically adjusts under the working load to the voltage levels you set Now you can forget compensations for pipe size, or moisture on the pipe – the detectors automatically make these adjustments