Chemglass 30L thru 50L Jacketed - Manual (Page 12)

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CG-1978-P and CG-3498 Probes for Reactor Systems Installed in Hazardous/XP or ATEX environments.
Chemglass PT100 and thermocouple probes that will be used in a hazardous/explosion proof area must be used
with a Zener barrier.
Zener barriers are used in control and instrumentation systems for the process of standardized signals, such as
20 mA or 10 V. Zener barriers contain intrinsically safe circuits that are to be used to drive intrinsically safe
field devices with hazardous area. The manufacturer’s data sheets must be consulted. The relevant
regulations and directives governing the intended application must be followed. Zener barriers must be
installed in conformance with the National Electrical Code. Please check with your company/university.
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Vineland, NJ 08360
US & Canada Phone: (800) 843-1794 International: (856) 696-0014
US & Canada Fax: (800) 922-4361 International: (856) 696-9102
PT100 Sensor in
Reactor System