Chapter 6: Replacements ABL77 Service Manual
Valve Board
Introduction
This valve board kit (REF: 902-812) may only be used to replace the valve board
from a valve board with replaceable valves assembly.
NOTE: The valves and tubing from any older valve board / manifold assembly are
not interchangeable with this board, nor is this “valve board only”
interchangeable with an older valve board assembly.
NOTE:
The valve board and analog board are a matched set. When either is replaced, the
Hct and SC circuits and must be re-calibrated. This also applies when replacing the
lower module or electronics module, which contains these boards. Calibration is
not required when these boards are only removed and put back into the same
analyzer. Refer to Chapter 4, Test and Calibration Procedures, for instructions on
performing this procedure.
CAUTION: Wear suitable protection gear during this procedure.
WARNING/
CAUTION:
CAUTION: Be prepared to collect fluids exiting the tubing connections as tubing
is disconnected and removed.
Continued on next page
6-10 Rev. F
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