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Vaisala Polaris PR53AC Guide D'installation page 19

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5. Install gasket for the refractometer.
6. Mount the refractometer. Make sure the cable glands on the refractometer are in a
downward position.
a. Finger tighten to 3 Nm if you are using the standard clamp (with one tightening
screw).
b. Tighten to 28 Nm with 9/16 inch wrench if you are using the high pressure clamp
(with two tightening screws).
19

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