Envent Engineering Ltd. Page 4 Revision 2.4
Warning & Cautions for 330S & 331S H
2
S Analyzers
Do not disconnect equipment unless power has been switched off or area is known to
be non-hazardous.
Turn off power before servicing. Ensure breakers are off before connecting or
disconnecting power supply.
Electrostatic Hazard – Backpan and Certification nameplate must be cleaned only
with a damp cloth to prevent static charging hazard.
Hydrogen Sulfide and/or other hazardous gases may be present under normal
operation – proper precaution and protective equipment is advised.
The analyzers input voltage range shown in Certification Nameplate (e.g., 120 –
240VAC) is limited when installing external devices (e.g., Solenoids).
Incorrect configuration of the analyzer may cause incorrect operation. Injury and/or
damage to facilities may occur. Check analyzer's functionality after configuration
changes have been made.
Total Sulfur Furnace reaches a temperature of up to 900 °C internally after 1 hour on.
Do not touch external surface as it can reach up to 150 °C. Allow enclosure 1 hour
after powering down the analyzer to cool down before servicing.
The analyzer should be mounted in an area in which it is not exposed to vibration,
excessive pressure, temperature and/or environmental variations.
Disassembly of the pressure regulator and solenoids in the field is not advised.
Consult Envent Engineering Ltd if the regulator or solenoid appears contaminated.
Before resuming line pressure, be sure that all port connections, sample sweep and
sample conditioning system are securely installed.
All connections must be leaktight to ensure the effectiveness of the analyzer as well
as safety. The user is solely responsible for the product selection, safety and warning
requirements for the application. If the equipment is used in a manner not specified by
Envent Engineering Ltd, the protection provided by the equipment may be impaired.
Do not use solvents, brake cleaners, soaps, detergents or rubbing alcohol to clean up
analyzer or sample system.
This unit requires a disconnect device rated 24 VDC and 5A max. It must be protected
by a circuit breaker rated 24 VDC and 5A max, and it is to be installed in accordance
with local electrical codes.
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