Stryker Medical Renaissance Series, Maintenance Manual

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Service Information
20
SCALE SYSTEM DIAGNOSTICS AND SERVICE
Diagnostic Mode Functions:
1. Download Barcode: This is a factory set–up mode and is not used in the field.
2. Calibrate Scale: This may be required in the field if replacement of several load cell assemblies or of
the scale CPU is required. Replacement of a single load cell assembly does not normally require this
procedure.
3. Change LBS/Volts: This is required whenever a load cell assembly or a scale CPU is changed in the
field.
4. Change Ref. Volts: This is a factory set–up mode and is not used in the field.
5. Init. to Defaults: This will be required in the field when replacing the scale CPU board.
6. Display Corner: This function displays the individual corner weights for each load cell assembly and can
be used to isolate a defective load cell.
7. Serial Option (If so equipped): This enables the scale system remote display port.
8. Quit/Save: This exits the diagnostic mode. Changes made in the diagnostic mode (with the exception
of Calibrate Scale) must be saved in permanent memory using this function. Quitting without saving will
reset all variables to their previous values, as will unplugging the bed power cord without using the save
function.
Entering Diagnostic Mode:
1. To enter diagnostic mode, remove power from the scale system by switching the scale lockout switch
toward the foot of the bed.
2. Press and hold down the LBS/KGS key.
3. While still holding the LBS/KGS key, switch the scale lockout switch toward the head of the bed.
4. After two seconds, release the LBS/KGS key. The scale monitor should read DOWNLOAD BARCODE.
The diagnostic mode is now active.
Special Key Functions in the Diagnostic Mode:
1. The four keys on the left side of the green scale key grouping function as POSITION keys, corresponding
with the four corners of the bed 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 BED = Head end, patient’s right side.
b. ZERO/GAIN LOSS = Foot end, patient’s right side.
c. CHANGE EQUIP. START = Head end, patient’s left side.
d. CHANGE EQUIP. FINISH = Foot end, patient’s left side.