Honeywell SMV 3000 - Manual (Page 112)

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9.2 Preventive Maintenance
Maintenance Routines
And Schedules The SMV 3000 transmitter itself does not require any specific
maintenance routine at regularly scheduled intervals. However, you should
consider carrying out these typical inspection and maintenance routines on
a schedule that is dictated by the characteristics of the process medium
being measured and whether blow-down facilities are being used.
• Check piping for leaks
• Clear the piping for sediment or other foreign matter
• Clean the transmitter’s process heads including the barrier diaphragms