Siemens SITRANS LC300 Mise En Service Rapide page 4

Definitions
Short form Long Form
LRV Lower Range Value
pF pico Farads
PV Primary Variable
URV Upper Range Value
SITRANS LC300
Note: SITRANS LC300 is to be used only in the manner outlined in this manual, otherwise
protection provided by the equipment may be impaired.
This product is intended for use in industrial areas. Operation of this equipment in a
residential area may cause interference to several frequency based communications.
SITRANS LC300 is a cost-effective instrument for level measurement in applications such as
the processing of food and beverages, pharmaceuticals, detergents and pet food. It performs
in liquids, bulk solids and slurries, including viscous (conductive or non-conductive) materials,
even in challenging environments involving vapour and dust.
LC300 is a 2-wire instrument combining a sophisticated, yet easy-to-adjust, microprocessor
transmitter with field-proven probes.
SITRANS LC300 Outputs
• 4 – 20 or 20 – 4 mA, 2-wire current loop circuit
• Isolated from the measurement circuit
• Current signalling according to NAMUR NE 43
Specifications
For a complete listing, see the SITRANS LC300 Instruction Manual.
Ambient/Operating Temperature
Process Conditions
Ambient temperature
Pressure range
Process temperature range
Min. relative dielectric constant (>
Power
• Supply voltage: 12-30 V DC any polarity, 2-wire current loop circuit, max. resistance
value 550  @ 24 V DC
Page EN-2 SITRANS LC300 – QUICK START MANUAL
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– 40 to +85 °C (– 40 to +185 °F)
-1 to 35 bar g (-14.6 to 511 psi g)
-40 to +200 °C (-40 to +392 °F)
):1.5
r
Description
value for 0 % (in pF)
-12
10
measured value
value for 100% (in pF)
Units
4 mA
Farad
20 mA
A5E32268590