Maintenance Procedures – Litter
86
WEIGH SYSTEM DIAGNOSTIC PROCEDURE
Diagnostic Mode Functions:
1. Calibrate Scale: This may be required in the field if the scale CPU is replaced.
2. Init. to Defaults: This may be required in the field when replacing the scale CPU board.
3. Display Corner: This function displays the individual corner weights for each load cell assembly and can
be used to isolate a defective load cell.
4. Exit Diagnostics: Changes made in the diagnostic mode (with the exception of Calibrate Scale) must be
saved in permanent memory using this function. Switching off power without saving will reset all variables
to their previous values.
Diagnostic Mode:
NOTE
It requires two people to enable the diagnostic mode for the scale system.
1. To enter diagnostic mode, unplug the bed’s power cord from the wall socket.
2. Press and hold down the LBS/KGS key.
3. While still holding the LBS/KGS key, plug the bed’s power cord into the wall socket.
4. After two seconds, release the LBS/KGS key. The scale monitor should read CALIBRATE SCALE. The
diagnostic mode is now active.
Special Key Functions in the Diagnostics Mode:
NOTE
By pressing the LBS/KGS key, the diagnostic mode functions can be scrolled.
To enter the selected mode, press the SCALE ON key.
The four keys listed in the group below function as POSITION keys corresponding with the four corners
of the bed’s litter. Whenever the scale monitor displays PICK CORNER NOW, press one of these keys
to select the load cell assembly at the desired corner.
A. ZERO = head end, patient’s right side
B. MINUS = foot end, patient’s left side
C. DELTA = head end, patient’s left side
D. PLUS = foot end, patient’s right side
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