CiDRA SONARtrac PW VF-100 - Manual (Page 14)

20829-01 Rev 03 Page 3-4
3.3.4 Additional Warnings for installations in Hazardous Areas
such as Class I, Division 2
In addition to the General Warnings and Cautions, observe these rules
when operating or servicing this equipment to mitigate the risks
associated with explosive gas atmospheres. (For ATEX Zone 2
installations, additional warnings may be found in the SONAR
PROCESS MONITORING SYSTEM SUPPLEMENT FOR ATEX
ZONE2 SAFETY.)
Only equipment marked with the appropriate hazardous area rating
should be installed in those areas. Verify the system hazardous
area rating on the equipment labels.
Install the equipment in locations consistent with the environmental
ratings of the equipment. (Refer to labels and Appendix A)
Power Entry and Inputs/Outputs must be installed in accordance
with the sections of Article 501 of the National Electrical Code
ANSI/NFPA 70 (or the equivalent applicable standard) that define
wiring techniques for unrated circuits.
Sensor Head Cable must be installed in accordance with the
sections of Article 501 of the National Electrical Code ANSI/NFPA
70 (or the equivalent applicable standard) that define wiring
techniques for Nonincendive rated circuits.
If the sensor band was shipped with a sensor band shorting plug
installed on the sensor band to preamplifier cable connector,
ensure the sensor band shorting plug is installed on the sensor
band cable prior to installing sensor band. Sensors bands with an
‘R” in the Part Number suffix (e.g. Part #: 20686-26-R) do not
require a shorting plug.
Use a dampened cloth to wipe sensor band cover and transmitter
when installed in Hazardous areas to dissipate potential static
charge buildup.
WARNING
Using a dry cloth to clean the transmitter enclosure can cause
static discharge, which could result in an explosion in an
explosive atmosphere. Always use a damp cloth to clean the
transmitter enclosure.
As for any electrical equipment in Hazardous area installations
wherein explosive atmospheres might be present, it is especially
important to de-power and remove the passive sonar meter from
service if its appearance or operating behavior indicates that it is
damaged or malfunctioning and/or that its safety features have
been otherwise compromised.