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EPOCH 1000 Series Procedure Conventional Straight Beam Calibration.

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Presentation on theme: "EPOCH 1000 Series Procedure Conventional Straight Beam Calibration."— Presentation transcript:

1 EPOCH 1000 Series Procedure Conventional Straight Beam Calibration

2 Required Items u Cable –BCM-74-6 u Couplant –D-12 u Transducer –A109S-RM u Test Block –2214E (5-step 0.1-0.5in)

3 –Basic Menu »Velocity- 0.2320 in/µs (long. wave in steel) »Range – 1.000 in –Pulser Menu »PRF Mode- Auto Low »Energy- 100V »Damping- 50 Ω »Mode- P/E (pulse-echo) »Pulser- Square »Freq- 5MHz –Receiver Menu »Filter Group- Standard »Filter- 1.5-8.5 »Rectification- Full Initial Settings

4 Zero Calibration 1.Set the Gain to 6.0dB 2.Couple the transducer to the 0.200 in step 3.Set Gate 1 so that it surrounds the first backwall echo from the 0.200 in step 4.Use Auto-XX to adjust the gain so that the signal is at 80%.500.400.300.200.100

5 Zero Calibration (cont.) 5.Press the Auto CAL key to bring up the Calibration menu 6.Make sure the CAL Mode is set to Thickness *(If more than just Gate 1 is active you will have other options for CAL Mode) 7.Press [P3] for CAL Zero 8.Enter 0.200 in the dialog box 9.Press the Check key to continue on to the Velocity calibration

6 Velocity Calibration 1.Couple the transducer to the 0.500 in step 2.Set Gate 1 so that it surrounds the first backwall echo from the 0.500 in step 3.Use Auto-XX to adjust the gain so that the signal is at 80%.500.400.300.200.100

7 Velocity Calibration (cont.) 4.Press [P2] for CAL Velocity 5.Enter 0.500 in the dialog box 6.Use the right arrow to scroll to Calculate and then press the Check key to complete the calibration *If you are ONLY doing a velocity calibration, press Check to continue 7.Adjust the Range back to the starting value of 1.000 in

8 Calibration Complete! u Verify that your unit is properly calibrated by checking the thickness measurement at each step on the block. –NOTE: Make sure to move the gate so it surrounds the first backwall echo for each step you are on.


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