General Instruction Manual
Maintenance and repair
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IM 01U10B00-00EN-R, 3rd edition, 2018-07-09
11 Maintenance and repair
Applicable country-specific regulations for opening and repairing electrical devices must
be observed.
DANGER
Risk of injury and damage to the flow meter due to ignition after sparking,
if there is mechanical impact
▶ Avoid strong mechanical impacts on the flow meter during maintenance work.
WARNING
Risk of injury due to electrical shock, as well as damage to the flow meter,
due to insufficiently trained personnel
▶ Only have skilled personnel maintain and repair the flow meter.
WARNING
Risk of injury due to electrical shock, as well as damage to the flow meter
▶ Do not perform maintenance outdoors during rain.
WARNING
Risk of injury from slipping or falling flow meter
▶ Observe notes about the transport of the flow meter in chapter Transport [}19];
these also apply accordingly during maintenance work.
WARNING
Risk of injury due to electrical shock, as well as damage to the flow meter,
due to maintenance work in areas at risk of explosion
▶ When maintaining the flow meter in areas at risk of explosion, compliance with the
applicable Explosion Proof Type Manual is mandatory.
WARNING
Risk of injury from electrical shock due to insufficiently closed housing
▶ After completion of the maintenance work, check that the housing covers of the
transmitter have been properly installed.
WARNING
Risk of open/ close the transmitter cover
▶ Please be sure to handle the transmitter cover carefully so that there are no dam-
ages and foreign matter adhesion at its thread and O-ring when it is opened or
closed. Keep checking their condition and clean the threads in case of adhering the
foreign matter. Replace the cover in case the threads receive damages. Replace the
O-ring if there is any scarring or transformation and apply silicone based grease at
the O-ring in case of the shortage and exhaustion of grease.
NOTICE
Risk of damage to the flow meter due to electrostatic discharge (ESD)
▶ When performing maintenance work on the flow meter, appropriate ESD protective
measures must be taken.
NOTICE
Be aware that all covers are closed before operating in order to prevent disturbance of
other sensitive electrical equipment due to increased electromagnetic emissions.
The need for maintaining the Rotamass Total Insight depends on process and environ-
mental conditions. Maintenance-free operation is possible for many processes. Contact
the responsible Yokogawa sales organization for details.
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