Campbell HMP45C Guida Utente Scaricare il pdf (Pagina 12)

HMP45C Temperature and RH Probe

5. Continue to carefully insert the probe a further 10mm, until the shoulder of

the larger section is approximately level with the hole in the lowest curved

disc, as shown in Figure 2 (b), below.

6. Tighten the large retaining nut by hand (do not use any tools) until the probe

is firmly gripped. If the probe does not appear to be sitting squarely inside

the shield, loosen the nut, re-position the probe and re-tighten. DO NOT

PULL THE PROBE DOWNWARDS PRIOR TO TIGHTENING THE

NUT, as this will also pull the sealing membrane downwards producing a

water trap. (See CAUTION below.)

7. Finally, bend the cable in a gentle loop back up towards the mounting arm

and attach it to the arm with the cable ties supplied.

Figure 2 Inserting the Probe into the Radiation Shield

Larger section of probe body in final

position (level with lip of first curved disc)

and showing the sealing membrane on

the flat disc in the correct

osition.

Sealing membrane must curve

upwards to repel water.

Flat white disc.

Carefully push the HMP45C up into

the radiation shield.

(a)

(b)

Observe here

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Campbell HMP45C Guida Utente Pagina 12