MKS HPS 917, Operation And Maintenance Manual

Page: 9 / 32

3 Pirani Vacuum Sensor System
No operations personnel should remove covers, casings, or plug-in
components. Any part replacement or internal adjustments must be
performed by a qualified technician only.
To prevent damage to the Series 917 Pirani Controller, use
the correct line voltage.
The Controller must be used with only the specified line voltage. Use only a
fuse of the correct type, voltage, and current rating. Only qualified personnel
should change line voltage or fuse ratings if required.
Outside of the U.S., use only a harmonized, detachable cord set that has
conductors with a cross-sectional area equal to or greater than 0.75 mm
2 .
Power cables should be approved by a European agency such as VDE,
Semko, or SEV.
The Series 917 Pirani System and all its accessories must be
used as instructed by MKS Instruments, HPS
TM
Products, to
ensure safe operation. Use or modification of the equipment
in a manner not consistent with specifications may render
the product's inherent protection useless.