Human Humalyzer 2000 - Valve Tubing Replacement

Na!
Rev. B
21
Valve Tubing Replacement
The short length of silicone tubing used in the sampling valve may become clogged or worn with
age. A replacement is included in the tubing kit.
1.
Set the power switch to OFF (O). Open the instrument as described in “Opening the
instrument" . Refer to Figure 8-A. Locate the valve behind and to the right of the
photometer.
Refer to Figure 8-B. Pull back the pinch bracket and remove the valve tubing from the
valve body.
Disconnect the valve tubing from the fittings at both ends.
Install the replacement tubing to the valve body in a similar manner. Push the tubing
over the tubing barbs until seated. Be especially careful not to kink, stretch, or tension
the tubing.
Carefully lower the instrument cover and replace the screw.
Humalyzer 2000 Service Manual