Vaisala HMT370EX - Attaching HMP374 to Process; Figure 26 HMP374 Fitting Body and Clasp Nut

4.5.1 Attaching HMP374 to process
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Figure 26 HMP374 fitting body and clasp nut
1 Clasp nut
2 Fitting screw, M22×1.5 or NPT 1/2"
3 Sealing washer
To attach the probe to the process:
1. Detach the fitting screw from the nut and slide it o the probe body.
2. Attach the fitting screw to the chamber wall with a sealing washer. Tighten the fitting
screw into the threaded sleeve with a torque wrench. The tightening torque is 150 ± 10 Nm
(110 ± 7 ft-lbs).
3. Insert the body of the probe into the fitting screw and attach the nut manually to the
fitting screw so that the connection feels tight.
4. Mark both the fitting screw and the nut hex.
Chapter 4 – Probe options
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