Hill-Rom VersaCare P3200, Service Manual

Page: 353 / 379

6.1 Scale Calibration
Chapter 6: General Procedures
7. Remove the cover (B).
8. Remove the two screws (D) securing the electronics module cover (E) to
the electronics module (F).
9. Remove the electronics module cover (E).
10. If installed, remove the shield (G) covering the scale P.C. board (H).
11. Place 25 lb (11 kg) in the center of the bed. Do not place the calibration
weight on the bed at this time.
SHOCK HAZARD:
The potential for electrical shock exists with electrical equipment.
Establish policies and procedures to educate your staff on the risks
associated with electrical equipment.
12. Press and release the calibration switch (I) on the scale P.C. board.
13. The display changes to 100.0 (45.0 for OIML beds).
14. Use the +/- switches (next to the calibration switch) to adjust the weight up
and down to match the calibration weight.
15. When the correct weight is displayed, press and release the calibration
switch. (PPM beds only, press and release the calibration switch twice, the
weight cannot be adjusted so 100 lb must be used).
16. Lower the head section to the flat position.
17. The display should change to CAL0. Do not touch the bed as it zeros.
18. When the bed is zeroed the display changes to CAL1, and one tone will
sound.
19. Add the calibration weight to the left head of the bed, over the load cell.
20. After approximately 30 seconds the display changes to CAL2, and two
tones will sound.
NOTE:
The time may vary depending on environmental conditions.
21. Remove the calibration weight.
6
VersaCare™ Bed Service Manual (MAN333 REV 2) Page 6 - 13