Information on the most widely used ASTM standards within the materials testing industry
Model: UT2033
The pipe opacity tester can be used to determine the impermeability determination of plastic pipes and fittings (showing results as a percentage). The instrument is controlled by an industrial touch screen and operated by a touch screen. It has the function of automatic analysis, recording, storage, display. The series of products are widely used in scientific research institutions, universities, quality inspection departments, production enterprises.
Conform to standard: ISO 7686:2005 Plastics pipes and fittings — Determination of opacity
General Introduction
The pipe opacity tester can be used to determine the impermeability determination of plastic pipes and fittings (showing results as a percentage). The instrument is controlled by an industrial touch screen and operated by a touch screen. It has the function of automatic analysis, recording, storage, display. The series of products are widely used in scientific research institutions, universities, quality inspection departments, production enterprises.
Conform to standard: ISO 7686:2005 Plastics pipes and fittings — Determination of opacity
Key Features
1. Can be tested at the same time four specimens, if less than four specimens can also be selected to test;
2. The use of industrial-grade anti-jamming ability of the touch screen as a human-computer interaction interface, the operation process is simple and convenient;
3. Light-flux acquisition system using high-precision optical collectors and at least 24 bits of module-digital conversion circuit.
4. With four specimens, 12 measuring points automatic ally, positioning, tracking, mobile test function, that is, to achieve fully automatic measurement.
5. With automatic analysis, recording, storage, display functions.
6. The instrument structure is reasonable, stable performance, high efficiency, energy saving, simple operation and easy maintenance.
Main Technical Specification
| Control mode | ARM core board control, test process fully automatic, touch screen operation, display |
| Pipe diameter range | Diameter 16 to 40mm |
| light flux acquisition system | the use of high-precision optical collector and 24-bit module conversion circuit |
| optical wavelength | 545nm x 5nm, led energy-saving standard light source |
| light flux resolution | ±0.1% |
| light flux measurement error | ±0.5% |
| Grating | 5 kinds of specifications: 16, 20, 25, 32, 40 |
| automatic in/out speed | 384mm/min |
| automatic in/out of the position moving distance | 160mm±0.5mm |
| sample tracking system movement speed | 420mm/min |
| sample tracking system positioning accuracy | ±0.1mm |
● The use of grating automatic replacement system, with automatic control of grating movement according to the sample specifications, automatic positioning, automatic tracking of the prototype function. ● The specimen frame has automatic positioning of the specimen, to ensure that the specimen surface and incident light vertical function. ● With a continuous completion of the same pipe sample of 4 specimens (3 measuring points per specimen) automatic identification, positioning, tracking, mobile test function. ● Supporting a set of 540nm enzyme label analyzer, including a light transmission rate of 3.16%, 10%, 31.6%, 63% of the standard substances each piece, for the calibration of the instrument. | |

Light source filter permeability chart
Standard
ISO 7686 Plastics pipes and fittings — Opacity — Test method
ISO 7686 principle consists in measuring the light flux passing through a test piece cut from a pipe or fitting as a percentage of the incident light flux on the test piece. The standard lays down the maximum acceptable limit for the light which may pass through the wall of the pipe or fitting, if the product standard specifies that they shall be opaque.
Pipe Opacity Testing: These tests are performed to determine the opacity of pipes and fittings. The pipes must meet ISO 7686:2005 standards that specifies a method for the determination of the opacity of plastics pipes and fitings. lt is an ideal device for pipe manufacturers, research and inspection institutions.
UnitedTest UT2033 Opacity testing is a process of testing how opaque and also how transparent a particular substance is. Opacity testing can also be used to test the quality of Plastics Films.
Test Procedure , Troubleshooting
Test procedure:
The specimen should be divided into 4 groups and placed horizontally on the specimen holder, and the convex surface of the pipe fitting should be parallel to the optical tube. The parallel light with a wavelength of 550±10 needs to be irradiated three times at different positions of the horizontal line at the highest point of the same graph on each specimen, and calculate the average value. After all 4 groups were tested, the maximum of the average value is the opaqueness.

Trouble Shooting:
| No respond of touchscreen and the tester. | Problem: Power is off Solution: Plug in the power |
| Measurement error is out of range. | Problem: The specimen is not placed in the specimen holder properly Solution:Replace the specimen correctly from the specimen chamber |
| Testing result is larger than expected or even display error. | Problem: Zero value is not correct Solution: Reset the zero value as recommended |
| Other | Solution: Power off the tester and contact the after-sales service department |
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