Flowserve D30 Installation, Operation & Maintenance Manual page 5

Maintenance Service
Warning!
When upgrading electronically parts inside a PMV positioner approved for installation in
Hazardous locations special procedures apply, permission from PMV/Flowserve is required
prior to the start of work. Please contact a Flowserve office for information regarding proper
procedures www.pmv.nu or infopmv@flowserve.com
-Always turn off the air and electrical supplies before starting any work.
Safety instruction
Read the safety instructions in this manual carefully before using the product. The
installation, operation, and maintenance of the product must be done by staff with the
necessary training and experience. If any questions arise during installation, contact the
supplier/sales office before continuing work.
Warning
The valve can open or close very quickly when in operation and, if handled incorrectly, it may
cause damages. There may also be unintentional effects due to it fully opening or shutting
off the flow in the process pipe. Please note the following:
• If the input signal fails or is switched off, the valve operates quickly to its default position.
• If the compressed air supply fails or is turned off, rapid movements can occur.
• The valve is not controlled by the input signals when in the Out of Service mode. It will
open/close in the event of an internal or external leak.
• If a high value is set for Cut off, fast movements can occur.
• When the valve is controlled in the Manual mode, the valve can operates quickly.
• Incorrect settings can cause self-oscillation, which can lead to damage.
Important
• Always turn off the compressed air supply before removing or disconnecting the air
supply connection or the integral filter. Remove or disconnect with care as air connection
"C-" is still under pressure even after the air supply is turned off.
• Always work in an ESD (Emergency Discharge) protected area when servicing the Printed
circuit boards (PCB´s). Make sure the input signal is switched off.
• The air supply must be free from moisture, water, oil and particles according to DIN/ISO
8573-1-2001 3.2.3.
D30 Digital Positioner
5
FCD PMENIM0030-01-A5 – 05/18