Endress+Hauser Flowfit CYA27, Руководство по эксплуатации

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Commissioning Flowfit CYA27
28 Hauser
6 Commissioning
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CAUTION
Risk of injury from high pressure, high temperature or chemical hazards if process
medium escapes.
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Before subjecting the assembly to the process pressure, verify that all connections are
sealed.
‣
Wear personal protective equipment consisting of protective gloves, goggles and
protective clothing.
‣
Increase the process pressure slowly.
6.1 Function check
Prior to commissioning, ensure that:
• all seals are correctly seated (on the assembly and on the process connection)
• the sensor is correctly installed and connected
• all other connection points of the assembly are correctly connected or appropriately
sealed
• all pipes and/or hoses are in perfect condition.
6.2 Switching on the device
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CAUTION
Incorrect operating sequence of valves during commissioning
This may lead to increased pressure in the assembly and may impair or completely disrupt
the functioning of the sensors (loss of calibration). This may in turn cause further harm (to
other plant components, dosing system personnel).
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Follow the operating sequence in accordance with the instructions below.
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Instruct operating personnel regularly and, if necessary, attach a notice to the
measuring point.
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CAUTION
Medium may escape if the needle valves are unscrewed fully.
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Open the needle valves by a maximum of three turns.
NOTICE
Switch-on sequence of needle valves
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First open the needle valve at the outlet and then open the needle valve at the inlet
module.
The needle valve at the outlet should always be open during operation and is not used
to configure the flow.
The needle valve at the inlet is used to configure the flow.