Universal IV - Level Measurement System
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Section 3: Hazardous Location Approval Supplementary
Installation & Operating Instructions
3.1 General safety information
This document contains installation instructions for potentially
explosive atmosphere applications.
The Universal U IV is approved for use in hazardous locations
when properly installed. Control drawings detailing installation
guidelines are available in
Section 8
.
Always Install to Local Codes / Requirements / Directives as
Mandated by the Authority Having Jurisdiction.
The aluminum enclosure must be protected from mechanical
friction and impact that could cause ignition capable sparks.
3.1.2 Warning
• Installation, Start-Up, and Service should only be performed
by personnel trained in explosive atmosphere installations.
• Substitution of Components May Impair Intrinsic Safety.
3.1.3 Device Description
The Universal IV is a Continuous Level Measurement System.
Measurements are displayed via remote communications or an
integrated display screen.
3.1.4 Electrical connection
WARNING! Read the following information carefully.
• Live Maintenance should only be carried out by Skilled
Personnel trained in explosion protection methods.
• Test Equipment used to perform “Live Maintenance” must be
certified to use in the associated hazardous area.
Intrinsically Safe Installations
When the Universal IV is installed as an intrinsically safe device
per the agency control drawings, the housing cover may be safely
opened. For system configuration, remove the view port housing
cover to access the display keypad for local system configuration.
Explosionproof or Flameproof Installations
No Live maintenance is permitted.
Disconnect power to the device and check that the atmosphere is
clear of hazardous substances.
