- A ‘thro’ coating Ultrasonic Thickness Gauge
- It measures thickness of metal without removing the paint or other coating on the top.
- Works on ‘multiple echo’ technique
- Memory of 2000 thickness readings and PC connectivity in model EDISON 1TCM
- Ideal for use on pipes, tanks etc in process plants and ship hull.
EDISON - 1TC - Ultrasonic Thickness Gauge - Salient Features
| Technical Specifications | |
|---|---|
| Applicable Materials | All homogeneous materials which allow transmission of Ultrasonic energy through it like most of metals, hard plastics, glass, ceramics etc with Protective Coating. |
| Measuring Range | 3mm to 50mm. (Specified range depends on test material, transducer, surface and temperature.) |
| Probe | Single Crystal type. |
| Key Pad | Sealed tactile type. |
| Velocity | 1000 m/s to 9999 m/s. |
| Display | 4 Digit LCD type. It displays Thickness, Velocity, Battery check, Coupling check, and stored readings with IDs. |
| Resolution | 0.1 mm. |
| Accuracy | 0.1mm |
| Calibration | i> Probe Calibration: Not Required as it has Auto Probe Calibration. |
| ii> Material Calibration: It can be done for any material. | |
| Unit | Imperial (Inches) or Metric (mm) selection available. |
| Battery | Two Penlite Dry Cells (AA) or NiCd. |
| Operating time | 18 to 20 hours.(with alkaline batteries). |
| Low Battery | Indication by Blinking of LCD. |
| Auto Power off | 2 minutes after switching on/ last reading. |
| Size mm | 125(H) x 65(W) x 30(D). |
Frequently Asked Questions
What makes the Edison-1 TC different from the standard Edison-1?
The Edison-1 TC is Modsonic’s through-coating model in the Edison series. Its key difference is that it measures the metal thickness without removing the paint, coating, or protective layer on the surface. It uses a multiple echo technique and a Single Crystal probe instead of the dual crystal probe used in the Edison-1, allowing it to ignore the coating and measure only the base metal thickness underneath.
What is the through-coating multiple echo technique?
The multiple echo technique works by measuring the time between successive back-wall echoes within the metal rather than the first echo from the surface. Since all the bouncing echoes occur only within the metal layer, the coating thickness is completely ignored and only the true metal wall thickness is displayed — with no need to remove paint or coatings before measurement.
What are the typical applications of the Edison-1 TC?
The Edison-1 TC is ideal for use on pipes, tanks, and pressure vessels in process plants, as well as ship hulls, where paint and protective coatings are always present and cannot be removed during inspection. It is widely used in petrochemical plants, refineries, shipping, and infrastructure maintenance for in-service corrosion monitoring without surface preparation.
What is the measuring range and accuracy of the Edison-1 TC?
The Edison-1 TC has a measuring range of 3 mm to 50 mm depending on the test material, transducer, surface condition, and temperature. It offers a resolution of 0.1 mm and an accuracy of 0.1 mm. The narrower range compared to the standard Edison-1 is characteristic of the multiple echo technique used for through-coating measurement.
Does the Edison-1 TC require probe calibration?
No. The Edison-1 TC has Auto Probe Calibration, which means probe zero calibration is not required. Material calibration can however be performed for any material other than steel. This simplifies operation significantly and reduces the setup time before inspection.
Does the Edison-1 TC support metric and imperial units and does it have memory?
Yes. The Edison-1 TC allows selection between Imperial (inches) and Metric (mm) measurement units. The Edison-1 TCM variant of this model adds onboard memory of 2000 thickness readings with 4-digit IDs and PC connectivity via RS-232 for uploading readings directly to a spreadsheet — useful for systematic corrosion survey documentation.
What is the battery life and size of the Edison-1 TC?
The Edison-1 TC operates on two standard AA size Penlite dry cells (alkaline or NiCd) and delivers 18 to 20 hours of operating time with alkaline batteries. Auto power-off activates after 2 minutes of inactivity. It measures 125×65×30 mm — the same compact form factor as the rest of the Edison series — making it easy to carry during plant walk-downs and hull surveys.