8.2.2 Emergency Stop The emergency stop switch should be tested daily (minimally) or before each shift in a multi-shift plant operation. To test, manually position the crosshead up or down. While the crosshead is in motion, depress the emergency stop switch. The crosshead should stop. Press and rotate the emergency stop to release. Press the jog switch to position the crosshead up or down. The crosshead should move normally. 8.2.3 Fuse Replacement See the Fuse Specification chart on page 14. HAZARD Make sure to shut all power to your MMD or FMD Series system to OFF. Dangerous voltage may cause personal injury. NOTE The MMD and FMD Series used with 110/120V input power use two (2) 6.3A slow-blow fuse. NOTE The MMD and FMD Series used with 220,230, or 240V input power use two (2) 3.15A slow blow fuse.
9.0 Calibration and Verification Factory testing is performed on your MMD or FMD Series test frame prior to shipment to you. Starrett calibrates and verifies MMD and FMD Series performance specifications using calibration equipment trace- able to international standards, e.g. National Institute of Standards and Technology (NIST). This testing and calibration is to verify your system will operate to its published specifications. A complete calibration of your MMD or FMD Series test frame should be performed on-site at the time of installation per your preferred or required international standard, e.g. ASTM E4, ISO 7500-1, EN 10002- 2, etc. This calibration should be performed by Starrett or an autho- rized Starrett representative. Starrett recommends that your system undergo a calibration and verification at least annually. If you MMD or FMD Series test frame is physically moved, a calibration and verification is necessary. A Starrett calibration compares the actual load values measured by your MMD or FMD Series system and its applied load cell sensor to a known “standard or artifact” that is traceable to national standards and ensures that the load measurement complies with your particular standard, e.g. ASTM, ISO, etc. A Starrett verification ensures that your measurements are reading correctly or within the published specifications. Verification of the fol- lowing measurements are provided during a Starrett calibration:
• Force (ASTM E4) • Displacement (ASTM E2309/E2309M) • Crosshead Velocity (ASTM E2658)
WARNING Always replace the fuse with the correct type and amp rating.
NOTE Strain verification (on Extensometers) is not performed by the L.S. Starrett Company. We recommend that customers who use extensometers with our testers obtain Strain verification from their service organizations.
To change the fuse, perform the following: 1. Ensure that power to your MMD or FMD Series is removed entirely. 2. Ensure that the Power On/Off switch on your MMD or FMD Series is in the OFF position. 3. Ensure that the Emergency Stop Button is in the Stop (Down) position. 4. Verify that power to the machine is OFF. View the Start/Stop button and make sure no light is displayed. Use the jog key and make sure there is no crosshead movement. 5. Locate the Power Entry Module on the back panel of your MMD or FMD Series frame. 6. Using a small flat screwdriver, remove the cap from the Power Entry Module that covers the Fuse Compartment. 7. Grasp and remove the Fuse Holder. 8. Install a new fuse into the Fuse Holder. WARNING- the replace- ment fuse MUST be the factory-specified type and rating as the original. An incorrect fuse may damage the electrical circuits inside your machine. 9. Re-insert the Fuse Holder. 10. Place the protective cap onto the Power Entry Module. 11. Reconnect the power cable to the MMD or FMD Series. 12. Dis-engage the Emergency Stop Button. 13. Turn the main Power Switch to ON.
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