| Contact Us for Quotation | Email：mewoi@mewoi.com | Whatsapp: +8618620373879 |
INTRODUCTION
| MEWOI-TL78 Porosity Holiday Detector is a special testing equipment used to detect oil and gas pipelines, cables, enamel, metal tank, hull and other protective coatings flaws. It is a professional and practical equipment. |
PRINCIPLE
| The detector generates a high DC voltage that is applied to the coating surface through a probe. The detector is connected to the substrate via the high voltage returned. When the probe is passed over a coating flaw, then the electrical circuit is completed and current flows from the probe to the substrate. As a result, audible and visual alarms are activated in the detector and a spark may be produced at the flaw. |
APPLICATIONS
| 1,oil and gas Anticorrosive factory, pipelining company, construction departments and qualitative inspect branch. |
| 2,also use to gas company and water company pipeline inspecting |
| 3,Shipbuilding, petrochemical plant, factory, machinery plant, enamel factory and bridge engineering anticorrosion-layer inspecting. |
| 4,Pipeline transportation company anticorrosion-layer inspecting |
FEATURES
| 1,Low power consumption, small size, light weight。 |
| 2,Microelectronic integrated high voltage generator，to overcome the electrostatic； |
| 3,digital display，high-precision； |
| 4,Automatic exchange for High voltage and source voltage； |
| 5,intelligent charging； |
| 6,Adopt imported microswitch, action is sensitive and reliable and with good stability； |
| 7,Power on self test function |
| 8,Anti static，High voltage Protection |
| 9,Automatic regulation； |
| 10,Modular structure，Three-proofing design，long service life and reliability。 |
TECHNICAL SPECIFICATION
| Model No. | MEWOI-TL78 |
1、Measuring range | A：0.03-3.5mm（Epoxy coal tar pitch medium）,B：3.5-10.mm（Petroleum asphalt medium） |
| 2,Output high voltage | A：0.5-15KV, B：15-36KV |
| 3,Display | Digital Supply |
| 4,High voltage control system | Full digital control |
| 5,Power supply | 12V DC |
| 6,Consumption | ＜5w |
| 7,Alarm delay | 1-2s |
| 8,High voltage probe | Electronic high voltage generator |
| 9,Packing | Aluminum box |
| 10,Main dimension | Main dimension： 165mm×155mm×68mm |
| 11,Weight | 1.5kg（Including battery） |
| 12,Accessories | Hostx1,High voltage probex1, Brush platex1,Fan-shaped brushx1,Warning Lightx1,220V power linex1,Long cable x1,Short connecting line x1,Connecting magnet x1,earth stick x1,Rubber glovesx2,Manual x1 |
Note
| Standard configuration: |  |
| Optional configuration: |  |
SELECTION GUIDE
| Model No. | Brush | Type | High voltage control system | High voltage probe | Range | Output High Voltage | Display | Power Supply | Comsumption |
|
| - | Ordinary potentiometer | Electronic high voltage generator | A：0.03-3.5mm | A：0.5-15KV, | Pointer | DC 12V | ＜5w |
| - | Ordinary potentiometer | Electronic high voltage generator | B：3.5-10.mm | B：15-35KV, | Pointer | DC 12V | ＜5 | |
| - | Ordinary potentiometer | Electronic high voltage generator | C:0.03-10.mm | C：0.5-35KV | Pointer | DC 12V | ＜5w | |
|
| - | Analog Digital Controller | High end Voltage Generator | A：0.03-3.5mm | A：0.5-15KV, | Digital | DC 12V | ＜5w |
| - | Analog Digital Controller | High end Voltage Generator | B：3.5-10.mm | B：15-35KV, | Digital | DC 12V | ＜5w | |
| - | Analog Digital Controller | High end Voltage Generator | C：0.03-10.mm | C：0.5-35KV | Digital | DC 12V | ＜5w | |
|
| Online | Analog Digital Controller | High end Voltage Generator | 0.03-10.mm | C：0.5-35KV | Digital | AC 220V | ＜5w |
|
| - | Analog Digital Controller | High end Voltage Generator | A：0.03-3.5mm | A：0.5-15KV, | Digital | DC 12V | ＜5w |
| - | Analog Digital Controller | High end Voltage Generator | B：3.5-10.mm | B：15-35KV, | Digital | DC 12V | ＜5w | |
| - | Analog Digital Controller | High end Voltage Generator | C：0.03-10.mm | C：0.5-35KV | Digital | DC 12V | ＜5w | |
|
| Online | Analog Digital Controller | High end Voltage Generator | 0.03-10.mm | C：0.5-35KV | Digital | AC 220V | ＜5w |
|
| - | Ordinary potentiometer | Electronic high voltage generator | A：0.03-3.5mm | A：0.5-15KV, | Pointer | DC 12V | ＜5w |
| - | Ordinary potentiometer | Electronic high voltage generator | B：3.5-10.mm | B：15-356KV, | Pointer | DC 12V | ＜5w | |
|
| - | Analog Digital Controller | High end Voltage Generator | A：0.03-3.5mm | A：0.5-15KV, | Digital | DC 12V | ＜5w |
| - | Analog Digital Controller | High end Voltage Generator | B：3.5-10.mm | B：15-36KV, | Digital | DC 12V | ＜5w | |
|
| - | Analog Digital Controller | High end Voltage Generator | A：0.03-3.5mm | A：0.5-15KV, | Digital | DC 12V | ＜5w |
| - | Analog Digital Controller | High end Voltage Generator | B：3.5-10.mm | B：15-36KV, | Digital | DC 12V | ＜5w |
