Introduction to the SITRANS LC 300 The SITRANS LC 300 is a cost-effective instrument for level measurement in high accuracy 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.
The Manual Notes: • Please follow the installation and operating procedures for a quick, trouble-free installation and to ensure the maximum accuracy and reliability of your Siemens Milltronics instrument. • This manual applies to the SITRANS LC 300 only. This manual will help you set up your LC 300 for optimum performance. We always welcome suggestions and comments about manual content, design, and accessibility.
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4 mA Pressure Equipment Directive safety approval pico Farads Farad Primary Variable measured value Grounded metal tube with Stilling Well openings Upper Range Value value for 100% (in pF) 20 mA 7ML19985HE01 SITRANS LC 300 – INSTRUCTION MANUAL Page 3...
- primary variable (PV) out of measurement limits - failure in measurement circuit - memory check sum - system watch dog See Fault Values on page 18 for detailed descriptions of Diagnostic messages. Page 4 SITRANS LC 300 – INSTRUCTION MANUAL 7ML19985HE01...
• rope/cable version: 125 mm Max. tensile load (rope/cable version) • 1900kg (4188 lbs) Other process connections available on request. See Probe: Standard on page 9, or Probe: Cable on page 10. 7ML19985HE01 SITRANS LC 300 – INSTRUCTION MANUAL Page 5...
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• Lloyd’s Register of Shipping, categories ENV1, ENV2, and ENV5 *Please verify against device nameplate. For a chemical resistance list for PFA/PEEK, contact your local distributor. See the Pressure/Temperature Curve in Appendix I: Application Notes on page 21. Page 6 SITRANS LC 300 – INSTRUCTION MANUAL 7ML19985HE01...
This product is susceptible to electrostatic shock. Follow proper grounding procedures. The SITRANS LC 300 as supplied in the standard probe lengths is normally mounted on the vessel top or through the tank wall at the detection level (if used as Point Level switch).
5000 mm insulation (200") 25000 mm (985") max. cable / rope with PFA jacket-9 mm (0.35") without PFA jacket-6 mm (0.25") ø 19 mm (0.75") tensile weight ø 32 mm (1.26") Page 8 SITRANS LC 300 – INSTRUCTION MANUAL 7ML19985HE01...
76 mm (3") 120 mm (4.7") lid clip ½” NPT 145 mm electronics (5.7") enclosure active shield 100 mm (3.94") 300 to 5000 mm (14 to 197") probe ø19 mm (0.75") 7ML19985HE01 SITRANS LC 300 – INSTRUCTION MANUAL Page 9...
Make sure that no cable strands are pushed out of their position in the cable and that the cable is fully inserted. Re-fasten the weight by tightening the three set screws. 7ML19985HE01 SITRANS LC 300 – INSTRUCTION MANUAL Page 11...
Mount diagonally if vertical space is restricted. Wall Restriction Notes: • These drawings are not to scale. 50 mm 50 mm (2") min (2") min • Distance applies to standard version. Page 12 SITRANS LC 300 – INSTRUCTION MANUAL 7ML19985HE01...
Caution: Protect probe from falling Caution: Tensile load must not material. exceed probe or vessel rating. 500 mm (20") min Note: Buildup of material in active shield area does not affect the instrument. 7ML19985HE01 SITRANS LC 300 – INSTRUCTION MANUAL Page 13...
Interconnection Signal Amplifier/Power Supply The SITRANS LC 300 uses a switched power supply circuit that makes the most efficient use of the available power present on the terminals. If the signal current is low (4 mA), the terminal voltage will increase due to a voltage drop of other components in the loop, and if the signal current is high (20 mA), the terminal voltage will decrease.
(:) is displayed when the debounce delay timer has expired and the new value has been accepted. Positions 0 (Primary Variable in pF) and 3 (corresponding loop-current values in mA) are the recommended positions during normal operation. 7ML19985HE01 SITRANS LC 300 – INSTRUCTION MANUAL Page 15...
10, 100, and 1000 (displayed as 1E3). When no button is pressed for 4 seconds, the step size decreases to the next smallest value. At each step size, press the buttons for less than 1 second to adjust the value. Page 16 SITRANS LC 300 – INSTRUCTION MANUAL 7ML19985HE01...
LCD will read C:An. System errors that would trigger a fault are a checksum error, an absence of measurement signal, or a primary variable beyond 1.66 pF (low) or 3300 pF (high). 7ML19985HE01 SITRANS LC 300 – INSTRUCTION MANUAL Page 17...
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For example: If fault value 1 and fault value 2 occur together, the display will read fault value 3. If the display reads fault value 10, it means fault value 8 and fault value 2 have occurred together. Page 18 SITRANS LC 300 – INSTRUCTION MANUAL 7ML19985HE01...
[(PV–LRV) * 100 / actual level in %] + LRV] URV = [(37–12.5) * 100 / 45] +12.5 = 66.94 pF When calculating the URV, best results are achieved when using the highest possible actual level. 7ML19985HE01 SITRANS LC 300 – INSTRUCTION MANUAL Page 19...
Maintenance The SITRANS LC 300 requires no regular maintenance or cleaning. Even with significant build-up on the SITRANS LC 300 probe, the level controller will continue to operate. Note: Build-up of material on the active shield area has little or no effect on the performance of the SITRANS LC 300.
Siemens Milltronics Process Instruments B.V. Nikkelstraat 10 - 4823 AB BREDA - The Netherlands Declare, solely under own responsibility, that the product Capacitance Level Transmitter, SITRANS LC 300 Mentioned in this declaration, complies with the following standards and/or normative documents:...
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Siemens Milltronics Process Instruments B.V. Nikkelstraat 10 - 4823 AB BREDA - Niederlande Wir erklären hiermit auf eigene Verantwortung, dass das Kapazitive Füllstand Messgerät, SITRANS LC 300 Das Gegenstand dieser Erklärung ist, mit den folgenden Normen und/oder Regelwerken übereinstimmt: Anforderungen Bemerkungen Zertifizierungs-Nr.
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4 list 3 installation location 7 upper range value 16 interconnection 14 URV 16 signal amplifier 14 introduction to SITRANS LC 300 1 lower range value 16 LRV 16 maintenance 20 menu position 0 16 position 1 16 7ML19985HE01 SITRANS LC 300 –...