Installation and Start-Up | 3-23
AC Power Connection and Fusing
Both the North American and European versions of the Model 931S
and Model 932S Analyzers require a power-disconnect switch (break-
er), rated for at least 250 V
AC
, 4 A and certified for the hazardous
location (to satisfy local electrical codes, the switch must be certified
by the local author ity for the appropriate hazardous location). The
power-disconnect switch (breaker) must be connected to and mounted
near the analyzer, in an easily accessible area. The switch (breaker)
must be clearly la beled (e.g., “AMETEK Model 932 Analyzer Main
AC Power Discon nect Switch”).
For safety reasons during maintenance, this switch allows the main
AC power to be disconnected from the analyzer prior to performing
service on the analyzer. This switch (breaker) is to be supplied by
the customer/end user.
The analyzer must be operated from a grounded power source; failure
to do so will void the certification and warranty. Depending on ana-
lyzer configuration, the supply voltage may be 115 VAC ± 10 % (47–63
Hz) or 230 VAC ± 10 % (47–63 Hz). The nominal operating voltage and
power consumption is indicated on a label on the front of the Ex d Lower
Enclosure. Verify that the operating voltage indicated on the label agrees
with the operating voltage indicated on the documentation supplied with
the analyzer. The analyzer is intended for use in Installation Category II
(Overvoltage Category) and AC power requirements for each analyzer
system are specified on the system electrical drawings.
!
CAUTION
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