Siemens SITRANS LR 400 Application Manual page 5

Part Two: Zone O Emitter Change
The SITRANS LR 400 with Zone 0 approvals has a specially designed emitter. If the emitter assembly comes apart before
Appendix
reattachment, see
Zone 0, Step One: Remove Housing from Horn Assembly
1. Set the unit upright on a firm and clean surface.
2. Loosen locknut connecting housing and flange
assembly.
locknut
Zone 0, Step Two: Removing Top Emitter Assembly
1. Using an adjustable wrench open to 36mm, loosen
the top PTFE emitter assembly from flange.
Easy Aimer LR and SITRANS LR 400 Retrofit
Troubleshooting
: on page 9.
3. Carefully lift housing from flange assembly, exposing
the PTFE emitter.
4. Set housing aside on a secure surface.
2. Lift the top emitter assembly out of the flange and set
aside for use in
NOTE: If assembly comes apart, see
AG030612
APPLICATION GUIDE
Zone 0, Step Six
.
Appendix:
Troubleshooting
on page 9.
emitter
5 of 9