The LC300 is a 2-wire-loop-powered capacitance level probe transmitter for level measurement of liquids, solids and slurries.
Available in two versions (rod and cable), the SITRANS LC 300 capacitance level probe 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.
The LC300 capacitance level probe performs in liquids, bulk solids and slurries, including viscous (conductive or non-conductive) materials, even in challenging environments involving vapour and dust.
The LC 300 is a 2-wire level measurement instrument combining a sophisticated, yet easy-to-adjust, microprocessor with field-proven Pointek CLS 300 probes. It is available in two versions: rod and cable.
All wetted parts are made of stainless steel with a PTFE/FEP insulator for high chemical resistance. Materials with low or high dielectric properties are accurately measured and the patented Active-Shield technology helps in ignoring the effects of build-up.
Manufactured by: Siemens-Milltronics
Model: SITRANS LC 300 Capacitance Level Probe Transmitter
Tank level measurement
Conductive and non-conductive
Liquids and solids
Input | |
Measuring range | 1.66 - 3300 pF |
Span | Min. 3.3 pF |
Output | |
Loop current | Continuous signal 4 - 20 mA/ 20 - 4 mA acc. to NAMUR 43 |
Accuracy (transmitter) | |
Temperature stability | 0.25% of actual capacitance value |
Non-linearity and repeatability | < 0.4% of full scale and actual measurement value |
Accuracy | Deviation < 0.5% of actual measurement value |
Rated operating conditions† | |
Ambient conditions | |
- Ambient temperature | -40 - +85 °C (-40 - +185 °F)‡ |
- Installation category | I |
- Pollution degree | 4 |
- Ingress protection | Type 4/NEMA 4/IP65 (optional IP68) |
Installation conditions | |
- Location | Indoor/outdoor |
Process pressure | -1 - +35 bar g (-14.6 - +511 psi g) |
Process temperature | -40 - +200 °C (-40 - +392 °F)†† |
Min. dielectric constant εr | 1.5 |
Design | |
Material | |
- Enclosure | Aluminum, epoxy-coated |
Probe diameter | |
- Rod version | 19 mm (0.75 inch) with PFA jacket |
- Cable version | 9 mm (0.35 inch) with PFA jacket, 6 mm (0.24 inch) without PFA jacket |
Active shield length | |
- Rod version | threaded: 120 mm (4.72 inch) flanged: 100 mm (3.94 inch) |
- Cable version | threaded: 125 mm (4.92 inch) flanged: 105 mm (4.13 inch) |
Process connection of the probe | |
- Threaded rod mounting | ¾”,1”,1½”, 1½” NPT [(Taper), ANSI/ASME B1.20.1] R ¾”,1”, 1½” [(BSPT), EN 10226/PT (JIS-T), JIS B 0203] G ¾”,1”, 1½” [(BSPP), EN ISO 228-1/PF (JIS-P), JIS B 0202] |
- Threaded cable mounting | 1½” NPT [(Taper), ANSI/ASME B1.20.1] R 1½” [(BSPT), EN 10226/PT (JIS-T), JIS B 0203] G ½” [(BSPP), EN ISO 228-1/PF (JIS-P), JIS B 0202] |
- Flange mounting | 1 - 4” ASME, DN 25 - 100 |
Enclosure cable inlet | 2 x ½” NPT or 2 x M20x1.5 |
Power supply | 12 - 30 V DC any polarity, 2-wire current loop circuit |
User interface | |
Display | Local LCD, 4 digit, each 0 - 9 and limited alpha characters |
Safety | |
Measurement current signalling | According to NAMUR NE 43, signal 3.8 - 20.5 mA, fault ≤ 3.6 or ≥ 21 mA (22 mA) |
Certificates and approvals | |
General | CE, CSAUS/C, FM, C-TICK |
Dust ignition proof (intrinsically safe probe circuit) | (Europe) ATEX 1/2 D T100 °C (US/Canada) FM/CSA: Class II, Div. 1, Groups E,F,G Class III T4 |
Flame Proof (intrinsically safe probe circuit) | (Europe) ATEX II 1/2 G EEx d [ia] IIC T6...T1 ATEX II 1/2 D T100 °C |
Explosion Proof (intrinsically safe probe circuit) | (US/Canada) Class I, Div. 1, Groups A,B,C,D Class II, Div. 1, Groups E,F,G Class III T4 |
Marine | Bureau Veritas Type Approval ABS Type Approval |
Overfill protection | AIB-Vincotte |
Other | Pattern Approval (China) |
† When operation is in areas classified as hazardous, observe restrictions according to relevant certificate. See also Pressure/Temperature curves. ‡ Thermal isolator is used if process connection temperature exceeds +85 °C (+185 °F) †† Not suitable for steam environments |