Stryker Medical 2025, Maintenance Manual

Page: 22 / 140

Maintenance Procedures – Litter
21
SCALE CALIBRATION PROCEDURE
1. Unplug the bed power cord from the wall socket.
2. Press and hold the “LBS/KG” button on the foot board. While holding the button, plug the bed power cord
into the wall socket.
3. Release the “LBS/KG” button. The LCD will display “CALIBRATE SCALE”.
4. Press and hold the “LBS/KG” button. The LCD will display “HOLD TO ZERO WEIGHT”, “RELEASE TO
ZERO”, and then “DO NOT TOUCH BED”.
5. The LCD will display “REF X100=<2>0000”. This is set up to default at 200 pounds.
NOTE
Unless 200 pounds will be used, change the display to match the weight you are using to calibrate the scale.
Pressing the Trend/Fowler button will move the cursor position to the right. Pressing the arrow up button will
increase the numbers. Pressing the arrow down button will decrease the numbers.
6. Press the “LBS/KG” button. The LCD will display “ADD H/L, HIT ON”. Place the known weight on the
litter over the head, left load cell.
7. Press the “Scale On” button. The LCD will display “RELEASE TO CAL.” and “DO NOT TOUCH BED”.
8. The LCD will display “ADD H/R, HIT ON”. Place the known weight on the litter over the head, right load
cell.
9. Press the “Scale On” button. The LCD will display “RELEASE TO CAL.” and “DO NOT TOUCH BED”.
10. The LCD will display “ADD F/R, HIT ON”. Place the known weight on the litter over the foot, right load
cell.
11. Press the “Scale On” button. The LCD will display “RELEASE TO CAL” and “DO NOT TOUCH BED”.
12. The LCD will display “ADD F/L, HIT ON”. Place the known weight on the litter over the foot, left load cell.
13. Press the “Scale On” button, the LCD will display “RELEASE TO CAL” and “DO NOT TOUCH BED”
NOTE
If the scale system detects a problem, it will display “CHECK CORNERS”. If that happens, cycle the power
and refer to the scale system troubleshooting section (page 30).
14. After all four corners have been calibrated, the LCD will display “CENTER WT ON BED”.
15. Remove the weight from the foot, left corner and position it on the center of the bed.
16. Press the “Scale On” button and the LCD will display “PRESS REV. TREND”. Press the “Reverse Trend.”
button until the bed reaches full reverse Trend. Release the button and the LCD will display “DO NOT
TOUCH BED”.
17. The LCD will display “CALIBRATE SCALE”. This indicates the calibration procedure is complete.
18. Exit the scale system by pressing the “Scale On” button until the LCD displays “EXIT DIAGNOSTICS”.
Press the “Enter” button to exit.
19. Remove the weight and zero the bed.