AGT800 Laser Thickness Gauge

AGT800 Laser Thickness Measurement Gauge

The AGT800 is designed for measuring metals and virtually any other material that is processed in coil, sheet or strip form. It provides fast and reliable thickness measurements and S.P.C. reporting using the latest in laser triangulation technology.

Direct benefits realized through these measurements include documented compliance with ISO9002, QS9000, and other quality specifications, improved process control, increased productivity, and scrap reduction. The standard system also provides disk and/or network data storage and easy recall of all S.P.C. information. This feature eliminates the need to maintain large files of printer paper for long-term record-keeping purposes.

Principle of Operation

The AGT800 is an optical based measuring system. For this reason, it is important to keep the sensors clean and free of excessive dust, dirt, scale, water and oil mist. Two non-contact, high precision semi-conductor laser sensors are mounted above and below the strip to be measured, and their beams are focused on the same spot on the target material. Each sensor emits a Class II laser beam and receives the beam back on a RS-CMOS pixel array. The gauge determines the distance to the target material and precise material thickness is then calculated. The system is calibrated based on this data allowing it to provide continuous, high speed, non-contact, accurate and reliable thickness measurements.

Features

  1. Hassle Free

    There are no licensing or leak test requirements, no risk of terrorism, and no shipping or radioactive source disposal fee issues.

  2. Easy Installation

    C-frames typically mount on two pedestals, and there is no requirement for water.

  3. Keyence Laser Sensors

    Our development engineers tested more than a dozen laser sensor models from five different countries and made the decision to manufacture all A.G.T. laser thickness gauges with high-end Keyence sensors. These are the fastest sensors in the world, and they produce the highest possible accuracy and repeat ability. This translates to the most consistent and stable thickness measurements possible.

  4. Reliability

    Simplified hardware configuration increases the reliability of this gauge. The measurement system utilizes the latest in technology, reducing the requirement for peripheral hardware. The system configuration provides a very reliable platform for thickness measurement and S.P.C. reporting.

  5. Calibration Verification

    Our system features a fast and accurate calibration cycle, called ISOcal™.

  6. Automatic Reporting

    The system automatically generates several reports, providing all the information you need in user friendly formats.

  7. Networking

    The system is fully capable of network data storage, remote printing and control. Auto Data Gathering can be used to automatically position the C-frame, start the measurement and reporting function. Auto Data Entry can be used to automatically enter coil data. Using both functions simultaneously, the AGT800 can run itself with no operator intervention.

  8. Data Storage

    All coil data is automatically stored to disk. Any desired information can be easily and conveniently accessed at any point in the future, and the respective reports reprinted with relative ease.

  9. Diagnostics

    All digital inputs and outputs, analog inputs, and power supplies can be monitored simultaneously in real-time on a single screen. This feature provides for a means of greatly simplified troubleshooting.

  10. Upgradeability

    Our unique system design enables future upgrades to be performed in the field, in a matter of minutes.

S.P.C. Reports

  • Coil Report

    Presents a graphic representation of strip thickness over the coil length, in strip chart fashion, and indicates location of out of tolerance material. In addition, this report presents a histogram of thickness distribution, footage, weight, average thickness, UCL, LCL, UTL, LTL, X Double Bar, R Bar, Cp, Cpk, and CR. This entire report is automatically scaled to fit on a single page, allowing for much neater record-keeping.

  • Defect Summary Report

    Presents a useable summary of each defect type, along with its respective location in the coil.

  • Shift Summary Report

    Presents a period summary of production, available automatically at regularly scheduled times, or on demand.

  • ISOcal™ Report

    this routine allows the gauge to check its own calibration over a range of samples. This report can be sent to the system printer, allowing for regular system performance checks, and providing the necessary documentation to keep you in compliance with quality requirements.

  • Diagnostic Data Report

    This report is actually a printout of the Diagnostic Data screen. It shows the real-time status of all digital and analog I/O, nominal and actual internal sample readings, pre-amp and power supply voltages, and much more. Most of the major test points in the system are displayed simultaneously, making troubleshooting a very straightforward process. This page can easily be printed and faxed to Advanced Gauging Technologies for troubleshooting assistance.

  • System Setup Report

    This report shows all setup parameters for a specific gauging system, listed on a single page.

System Display

During normal operation, an interactive display shows real-time graphical representations of measured thickness, deviation, and a histogram of thickness values for the current coil. Also displayed are thickness, target, upper and lower tolerance limits, job number, coil number, shutter status, coil footage, coil width, defects if selected, product, and much more. Additional display screens are provided for next coil data, strip profile (thickness versus width), product setup, defect setup, report setup, calibration, diagnostics, message review, and data recall.

Diagnostic Data

Advanced Gauging Technologies is a service oriented company, and for that reason we’re proud that all of our thickness gauges have incredibly useful built-in diagnostic features. The Diagnostic Data Screen shows the real-time status of all digital and analog I/O, nominal and actual power supply voltages, and much more. All of the major test points in the system are displayed simultaneously, making troubleshooting a very straightforward process. This screen can easily be printed and emailed or faxed to A.G.T. for troubleshooting assistance.

Calibration

The AGT800 uses ISOcal™, which is the most advanced calibration routine available on the market today. This procedure can be performed in less than five minutes. N.I.S.T. certified samples are placed on a custom fabricated sample holder. Data is calculated and statistical outliers are automatically removed by the program. The calibration is then determined using all valid data points, and C-frame temperature is stored at that time. Once the calibration is saved, all future measurements are temperature compensated to automatically account for expansion and contraction of the C-frame.

Options

  • C-frame (required)

    Includes an electric drive motor that allows the operator to position the C-frame from the operator’s station. Optional oscillating configuration equipped with additional logic and control circuits enable the gauge to automatically sense strip width and scan from one edge to the other. In this configuration, the Profile Display Screen and Reports are enabled, which show a strip cross-section of thickness versus width.

  • Certified Samples (required)

    A set of six aluminum calibration sample plates which have their thicknesses certified as traceable to N.I.S.T. Also includes a custom sample holder assembly to properly position the samples on the C-frame. Calibration takes less than five minutes using six certified samples, which are placed on the custom sample holder.

  • Passline Angle Compensation

    Patented technology which uses a third laser sensor to determine passline angle, then calculates and applies a correction factor.

  • Remote Operator Control Station

    Includes an additional remote monitor, keyboard, and touchpad mouse.

  • Offline Data Analysis

    Allows easier access to coil reports by enabling the recall of reports from a single or multiple gauges simultaneously via a company network or USB stick. Reports can be accessed without interrupting the gauge measurement or line operation. Also allows coil reports to be formatted as PDF files.

Technical Specifications

AGT800 (20) AGT800 (50) AGT800 (80) AGT800 (150)
Thickness Range 25 µm to 2.5 mm.
(.001 to .100″)
0.06 to 6.3 mm.
(.003 to .250″)
0.10 to 10 mm.
(.004 to .400″)
0.19 to 19 mm.
(.008 – .750″)
Strip Width up to 18 cm. (7″) up to 61 cm. (24″) up to 122 cm. (48″) up to 244 cm. (96″)
Air Gap 41 mm. (1.61″) 103 mm. (4.06″) 165 mm. (6.50″) 310 mm. (12.20″)
Measurement Range ± 2 mm. (± 0.08″) ± 7 mm. (± 0.28″) ± 12 mm. (± 0.47″) ± 25 mm. (± 1.00″)
Sensor Enclosure Rating IP67 IP67 IP67 IP67
Light Source Red semi-conductor laser Red semi-conductor laser Red semi-conductor laser Red semi-conductor laser
Wavelength 650 nm. 650 nm. 650 nm. 650 nm.
IEC/IFDA (CDRH) Laser Class Class 2/Class II Class 2/Class II Class 2/Class II Class 2/Class II
Laser Power Output 0.95 mW 0.95 mW 0.95 mW 0.95 mW
Laser Spot Diameter 25 μm. x 1,400 μm.
(at reference distance)
50 μm. x 2,000 μm.
(at reference distance)
70 μm. x 2,500 μm.
(at reference distance)
120 μm. x 4,200 μm.
(at reference distance)
Ambient Light Resistance 10,000 lux maximum (incandescent or fluorescent) 10,000 lux maximum (incandescent or fluorescent) 10,000 lux maximum (incandescent or fluorescent) 5,000 lux maximum (incandescent or fluorescent)
Sampling Cycle 1 ms 1 ms 1 ms 1 ms
Response Time 10 ms 10 ms 10 ms 10 ms
Calibration Accuracy < 1.3 μm (.05 mils) < 3.3 μm (.13 mils) < 5.3 μm (.21 mils) < 10 μm (.39 mils)
Linearity ± 2.4 μm (± .09 mils) ± 8.0 μm (± .31 mils) ± 14.4 μm (± .57 mils) ± 32.0 μm (± 1.26 mils)
Mounting mode Diffuse reflection Diffuse reflection Diffuse reflection Diffuse reflection
Analog Output Resolution 1 µm 1 µm 1 µm 1 µm
Precision (noise) ~ 5 µm ~ 5 µm ~ 5 µm ~ 5 µm
Temperature Range 0 to 50° C
(32 to 122° F)
0 to 50° C
(32 to 122° F)
0 to 50° C
(32 to 122° F)
0 to 50° C
(32 to 122° F)
Relative Humidity Range 35 to 85% (no condensation) 35 to 85% (no condensation) 35 to 85% (no condensation) 35 to 85% (no condensation)
Central Processing Unit Intel Core i3-2120 (3.3GHz) or equivalent Intel Core i3-2120 (3.3GHz) or equivalent Intel Core i3-2120 (3.3GHz) or equivalent Intel Core i3-2120 (3.3GHz) or equivalent
Software Visual Basic operating in Windows® 7 Professional Visual Basic operating in Windows® 7 Professional Visual Basic operating in Windows® 7 Professional Visual Basic operating in Windows® 7 Professional