Thermo Scientific Sarasota FD900, User Manual

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Commissioning
3-4
User Guide for Sarasota ID900, FD900, & PD900 Gas Density Meters Thermo Fisher Scientific
Sarasota RTR900
Caution
If the seal housing bleed valve is blocked, the seal housing may
still be under pressure. When the clamp nut is first released, examine for
excessive fluid loss. If further loss is excessive, retighten the clamp nut and
resolve the leak issue before going any further.
▲
7. Unscrew the clamp nut while supporting the instrument and retractor.
The top of the retractor and instrument may be removed for inspection
and maintenance. Remove the Inconel C ring from the top of the seal
housing and keep in a clean, safe place. Cover the top of the housing to
keep it clean. Alternatively, grease the C ring to protect it from dirt.
Figure 3–1.
Average insertion torque versus pressure