Hazardous Locations - Honeywell SLG 700 User Manual
Smartline level transmitter guided wave radar
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Also See for SLG 700:
- Option manual (220 pages) ,
- User manual (198 pages) ,
- Quick start manual (40 pages)
Table of Contents
5.3.8 Hazardous Locations
Warning: When installed as explosion-proof or flame-proof in a hazardous location, keep
covers tight while the transmitter is energized. Disconnect power to the transmitter in
the non-hazardous area prior to removing end caps for service. When installed as
non-incendive or non-sparking equipment, disconnect power to the transmitter in the
non-hazardous area, or determine that the location is non-hazardous before
disconnecting or connecting the transmitter wires.
Product Approvals: All replacement sensor electronic modules are built according to the
same quality and regulatory processes as the original transmitter parts and complete
transmitter. Deviating from these instructions, or using other replacement parts, may
invalidate the product approvals marked on the transmitter nameplate.
Hi-Pot (Dielectric Strength) Test: The replacement sensor electronic modules are hi-pot
tested at the factory prior to shipment, using a voltage of 850 V for 1 second. If
applicable standards for the installation still require a hi-pot test after device repair,
the voltage shall not exceed 600Vac or 850Vdc between loop terminals and case. The
hi-pot test will fail with lightning protection terminal assemblies installed. The hi-pot
test must only be performed with a non-lightning protected terminal assembly
installed in the transmitter during the test.
The Hi-Pot test may be performed on the transmitter electronics, before re-installing
on the process connector.
Revision 7
SLG 700 SmartLine Level Transmitter User's Manual
Page 125
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