Optional Dust Cap - Siemens SITRANS LR460 HART Operating Instructions Manual

Optional Dust Cap

The dust cap must be removed before using the Air Purge feature (see
Note:
Purging System (Optional)
The dust cap fits onto the end of the horn and prevents the buildup of dust and other
process material inside the horn.
• It is particularly useful for applications in areas of high humidity, or with bulk solids
with a high moisture content.
• Two sizes are available, to fit the standard 3" and 4" horns.
Installation
1. Thoroughly clean inside the horn. If you remove the horn for easier cleaning, take
care not to damage or bend the plastic emitter.
plastic emitter
groove
2. Press the cap firmly onto the horn until the ridge inside the cap snaps into position in
the groove on the outside of the horn.
3. Hand tighten the adjustable clamp supplied to secure the cap.
4. Use a screwdriver or nut driver to tighten the clamp screw until the clamp provides
an air-tight seal.
It is critical to ensure no moisture can be trapped inside.
Note:
A5E42035355
on page 17).
SITRANS LR460 – INSTRUCTION MANUAL
Air
ridge
dust cap
clamp screw
Page 19