SITRANS LC500 Brochure

Continuous level and
interface measurement
for critical conditions
SITRANS LC500
Answers for industry.
SITRANS LC500
Power
Max. 33 V DC (30 V DC with Intrinsically Safe operation), min. 12 V DC at
3.6 mA, min. 9.5 V DC at 22 mA
Performance
Measurement range
1 to 3300 pF as standard (1 to 330 pF and 1 to 6600 pF options available*)
SITRANS LC500
Span
Minimum 3.3 pF
Accuracy
Deviation < 0.1% of measured value
SITRANS LC500 is an inverse
frequency shift capacitance level
or interface transmitter with active
shield for critical applications, such
as high-pressure coalescers, FPSO
ships, LNG processing plants, and
offshore oil and gas platforms. It
performs in liquids, solids, interfaces, and foam and is unaffected by
vapors, product deposits, dust, or
condensation and is highly resistant
to toxic and aggressive materials.
SITRANS LC500 is the right solution
if you’re looking for high-precision
level or interface measurement under extreme conditions.
Non-linearity and repeatability
< 0.1% of range and actual measured value respectively
Temperature stability
0.15 pF (0 pF) or < 0.25% (typically < 0.1%) of actual measured value,
whichever is greater over the full temperature range
Safety
• Galvanically isolated inputs / outputs
• Fully potted
Diagnostics with fault alarm
when:
• Primary variable (PV) out of limits
• Watch dog
• System failure in measurement circuit
• Self-checking facility
• Deviation between A/D and D/A converter • Check sum
Process connections
• Threaded: NPT [(Taper), ANSI/ASME B1.20.1], R [(BSPT), EN 10226/PT
(JIS-T), JIS B 0203], G [(BSPP) EN ISO 228-1/PF (JIS-P), JIS B 0202]
• Flange: ASME, EN 1092-1
• Full function diagnostics comply
with NAMUR NE 43
Process material
• 316L (1.4435 or 1.4404) stainless steel*
Probe diameter
• Rod version: 16 mm (0.63"), or 24 mm (0.95")**
• Cable version: 9 mm (0.35") with PFA jacket, 6 mm (0.24")
without PFA jacket
Probe length
• Rod version: max. 3.5 m (138") with 16 mm (0.63") diameter rod, max.
5.5 m (216") with 24 mm (0.95") diameter rod
• Cable version: 35 m (1378")
Probe insulation
PFA (standard), enamel
• Polarity-insensitive current loop
• Integrated safety barrier
Interface
Output
Galvanically isolated 4 to 20 mA / 20 to 4 mA
• Loop current 3.6 to 22 mA / 22 to 3.6 mA (2-wire current loop)
• Solid state switch 30 V peak AC / 30 V DC, 82 mA
Mechanical
• Integrated local display to facilitate on-site commissioning and
inspection
• Standard version handles temperatures from -50 to 200 °C
(-58 to 392 °F) and pressures up
to 150 bar g (2175 psi g). Optional: temperatures up to 325 °C
(617 °F) (pressure dependent)
and pressures up to 345 bar g
(5004 psi g)(temperature dependent)
Process conditions
• Built-in HART communications
and 4 to 20 mA/20 to 4 mA
current loop output
Pressure rating
-1 to 150 bar g (2175 psi g) standard (temperature dependent) up to
345 bar g (5004mpsi g)(optional)
Temperature rating
Standard: -50 to 200 °C (-58 to 392 °F), up to 325 °C (617 °F) as option,
-200 °C (-328 °F) as option for cryogenics (pressure dependent)
Ambient temperature
• General purpose: -40 to 85 °C (-40 to 185 °F)
• Relative humidity: suitable for outdoors (Type 4X/NEMA 4X/IP65/68 enclosure)
• Pollution degree: 4
Communications
HART® communication protocol
Approvals
• Probe versions up to 5.5 m (18 ft)
for the rod version, and up to 35 m
(115 ft) for the cable version
General
CE, CSA/FM, C-TICK
Hazardous areas
CSA/FM, ATEX
Marine
Lloyd’s Register of Shipping ENV1, ENV2, ENV3, and ENV5
Pressure
PED 97/23/EC, CSA B51
Others may be available on request: contact your Siemens representative for more options. ** 24 mm (0.95") only available for
PFA insulated. *** Enamel version available up to 1.5 m, Specifications are subject to change without notice. HART is a registered
trademark of the HART Communication Foundation. SITRANS is a registered trademark of Siemens AG.
© Siemens Milltronics Process Instruments Inc. 2008.
*
www.siemens.com/lc500
7ML1996-5JJ03
Printed in Canada