Vaisala HMP228 Guide de l'utilisateur télécharger pdf (Page 13)

Chapter 4 __________________________________________________________ Installing the probe

VAISALA _______________________________________________________________________ 11

MMP78 pipe dimensions (in mm); 400 mm (adjustment range 340 mm).

Tightening the clasp nut

1. Adjust the probe to a suitable depth according to the type of installation

and tighten the clasp nut first manually.

2. Tighten the clasp nut first manually.

3. Mark the fitting screw and the clasp nut.

4. Tighten the nut a further 30 - 40° (ca.1/12" turn) with a plastic wrench.

If you have a suitable torque spanner, tighten the nut to max 35±5 Nm

(25±4 ft-lbs).

NOTE

Take care not to over tighten the clasp nut to avoid difficulties when

opening it.

1. clasp nut, 27 mm hex nut

2. fitting body, 24 mm hex head

1. probe

2. clasp nut

3. pen

4. fitting screw

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Vaisala HMP228 Guide de l'utilisateur Page 13