Specifications; Ambient/Operating Temperature; Installation Conditions - Siemens SITRANS LR 400 Kurzanleitung

SITRANS LR 400
The SITRANS LR 400 is to be used only in the manner outlined in this manual, otherwise
protection provided by the equipment may be impaired.
The SITRANS LR 400 Radar Level Instrument is designed for medium to long range level-
measuring of solids and liquids in storage vessels. SITRANS LR 400 uses a high microwave
frequency and operates reliably even with poorly reflecting measuring media.
The SITRANS LR 400 supports HART,®

Specifications

Ambient/Operating Temperature

WARNING: Internal temperature must not exceed 85°C! Warranty may
be void.
Power
• 120 to 230 Vac, ±15%, 50/60 Hz, 6W (12 VA)
or
• 24 Vdc, +25/-20%, 6W (optional)

Installation Conditions

• location: indoor/outdoor
• altitude: 2000 m max.
• installation category: II
• pollution degree: 4
• range: up to 45 m (147 ft)
WARNINGS:
• The user is responsible for the selection of bolting and gasket materials which
will fall within the limits of the flange and its intended use and which are suitable
for the service conditions.
• Never attempt to loosen, remove, or disassemble process connection or
instrument housing while vessel contents under pressure.
1.
HART is a registered trademark of the HART Communications Foundation.
Page EN-2 SITRANS LR 400 – QUICK START MANUAL
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or Profibus-PA (optional).
ambient temperature: -40 to 65°C
internal enclosure temperature:
max. 85°C (185°F)
flange temperature
process temperature: -40 to 200°C (-40 to 392°F)
optional -40 to 250°C (-40 to 482°F) with
temperature extension
(-40 to 149°F)
7ML19985QN81