Operating instructions

Charged Aerosol Detectors
Corona Veo and Corona Veo RS
Operating Instructions Page 117
8.7.2 Assembling the Valve
1. Insert the rotor in the valve. Make sure that the rotor sealing surface with its engraved
flow passages faces away from the valve. The smooth side of the rotor must show to
the valve. The pattern of the rotor is asymmetrical to prevent improper placement.
2. Install the stator on the valve. Make sure that the stator is in correct orientation.
3. Insert the two socket head screws in the stator and valve. Tighten them gently until
both are tightened. Do not overtighten the screws. They only hold the assembly
together and do not affect the sealing force, which is automatically set as the screws
close the cap against the valve body.
4. Re-connect the capillaries to the stream-switching valve (→ page 40).
5. Turn on the detector. Observe the notes and precautions in section 5.2 (→ page 47).
Allow the detector to perform the self test before proceeding.