MNL000422.doc
Revision 1
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Confidential and Proprietary Data
High Temperature
Cutout Switch
Bubbler temperature
exceeds maximum
allowed temperature.
Error message
“Thermistor Trip”
flashes on LCD,
audible, illuminated
switch flashes and DDC
alarm generated.
Heater/ cooler circuit is
disabled.
Check thermowell oil
level. Check
configuration setup
screen for “High
Temp 1 or 2” alarm
settings. Troubleshoot
as required to correct
cause of high
temperature.
Front panel Start/
Stop switch
User wishes to stop the
temperature controller
operation
The switch will change
colors. When control
power is on, the switch
will be green, when off,
it will be red. When an
alarm condition exists,
the switch will flash red.
Use Start/Stop switch
to remove power to
the circuit or to start
system in control.
4.4
Hazardous Location Installation Requirements
The requirements for equipment installed in hazardous locations are defined in the
following documents. Refer to these documents for further details of the specific
requirements.
1
Hazardous Locations requirements - Standard for “Electrical Equipment for Use
in Class I and II, Division 2, and Class III Hazardous (Classified) Locations”, UL
1604, Third Edition
2
General electrical and spacing requirements - Standard for “Industrial Control
Equipment”, UL 508, 17
th
Edition
3
Wiring methods - “The National Electrical Code”, NFPA 70 2005 Edition
4
NFPA Article 501
The VaporGuard® offers an input to remotely shut off the high energy components to
the Source Cup Assembly.
