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QUICK SET-UP

Model No. 900-370
Digital Twin Rockwell tester

(HRSS-150)
  1. Loosen 4-nuts on bottom of crate. Lift the crate off of the platform being careful not to scratch side of tester.
  2. Remove the tool kit from the platform.
  3. Remove plastic dust cover
  4. Remove string holding handles and top cover
  5. Lift top cover straight up.
  6. Remove rubber band holding indicator lever and discard
  7. Remove back cover by removing 2-phillip head screws from top/bottom
  8. Carefully remove strings that are holding the weight bar to the loading arm
  9. Remove the weight bar from the loading arm by lifting the hook of the bar from the loop on the arm.
  10. Remove the 2-nuts at the bottom of the bar.
  11. Open test kit and remove the weights. Clean any oil/grease from weights.
  12. Plug in and power up unit.
  13. Set date & time. Press enter to save data entry
  14. Select scale and press enter
  15. Select weight using selector knob
Keypad Button Function
PRT

Print command – must be a min. of 3 tests/ first test will not print.

DEL Delete last test result
CLR Clear display
TIME + Pressure time  (Rockwell = 10 seconds / Superficial = 5 seconds)
TIME - Pressure time  (Rockwell = 10 seconds / Superficial = 5 seconds)
LIGHT+ Increase light on test table
LIGHT- Decrease light on test table

To show conversions to different scale, press up/down arrows. The different scales will be displayed in the center of the display. These will not print
Select weight and push enter to change scales.

 
HARDNESS TESTER RESOURCES
Hardness Tester Accessories Portable Hardness Testers
Hardness Tester Block Certification Minimum Thickness Chart for Rockwell Hardness Testing
Rebuilt Inventory with Full Warranty Rockwell Hardness Scale Indentor Load Chart
Hardness Tester Conversion Chart Hardness Setup:
  • 900-331
  • 900-340
  • 900-360
  • 900-370
  • Principle of Rockwell Hardness Testing NIST Links
    Roundness Correction Chart for Hardness Testing ASTM Links
    HARDNESS TESTER LINKS
    TRADE SHOWS
    • Visit our booth #6824 @ Quality Expo September 25-27, Rosemont, Illinois