Chapter Three: Overview Labels
27
Labels
Serial Number Label
The Serial Number label, located on the side of the instrument, lists the serial number and the
product model number of the unit.
250E-1-A-PLO
Serial #:
Model #:
0123456789
MKS Instruments, Inc. Made in the USA
Figure 7: Serial Number Label
The instrument is identified as “250E - X - Y - Z”, where:
250E = Type number
X = Number of set point controls
Y = Display Option
Z = Option
Refer to
Appendix B: Model Code Explanation
, page 47
,
for more information.