Gambro Prisma System - User Manual

2002 Gambro Renal Products, Inc. P/N 306100068 Rev A
Prisma
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System
Scale Diagnose and Calibration Procedures
BEFORE YOU BEGIN
! Read complete description of Scale Diagnose and Scale Calibration procedures in
Prisma Service Manual
! These instructions are not meant to replace the Prisma Service Manual instructions
ENTER SERVICE MODE
! Insure Prisma machine is turned off
! Simultaneously press and hold the softkeys 4 and 9 as shown below. Press the power
switch on and hold the softkeys until the PRISMA Service Screen displays.
DIAGNOSE SCALES
! Access Service Mode per above procedure
! Press Diagnose softkey to access Service-Diagnose Screens (for a complete description
of “Service-Diagnose Screens”, consult Prisma Service Manual, page 5-11).
! Press Scales softkey to access the diagnose screen for scales
! Observe values displayed for A/D and Averaged-grams displayed on Prisma screen. The
values should be as follows:
o A/D values
: The A/D Monitor and Control readings are displayed as bits. Each bit
represents the voltage signal at the scale and each bit is approximately equal to 1
gram. When there is no weight on the scale, -3000, +
500 should be displayed as
the A/D control and monitor readings.
o Averaged-grams
: When no weight is applied, the Averaged-grams readings
should be 0, +
7 grams. If you wish to check the calibration of the scales, you can
4 9

Gambro Prisma System Specifications