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Installation
4.3 Installing the pump tube in the sensor body
Note: Do not stretch the tubing in the sensor body, as this could affect the ability of the sensor to
detect liquid through the pump tubing.
1. Remove the four screws on the pump cover.
2. Remove the front cover of the pump housing. Remove the tubing. Locate the black
dots on the tubing. Route the end of the tube that extends farthest beyond the black
dot through the S-shaped strain relief. Attach this end to the stainless steel tubing
connector. Refer to Figure 10.
3. Install the pump tube in the pump housing so the black dots are visible just outside
the pump body.
Note: Use the proper length of silicone tubing in the pump body. An improper length can reduce the
life of the tubing and pump rollers. Refer to Figure 10 for the correct length.
4. After inserting the new pump tube as shown, reinstall the front cover and secure it
with the four screws until finger tight.
5. Make sure that the tubing extends through the liquid sensor and out of the controller
as shown in Figure 11.
Figure 9 Anchor bracket locations with mounting dimensions
1 Anchor brackets (2x) 2 Optional anchor brackets (6613100)
Goodnal STP ST041 Pre Treatment (Sigma 900 MAX All Weather Refrigerated Sampler) Vendor Manual
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