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Technical documents and specifications for this product.
Siemens LVL 200
SITRANS LVL200 is a standard vibrating point level switch designed for material detection in liquid and slurry applications such as overflow, high, low, and demand applications, as well as pump protection. It is certified for use in SIL-2 applications.
SITRANS LVL200 is a level switch designed for industrial use in all areas of process technology and can be used with liquids and slurries. With a tuning fork insertion length of only 40 mm (1.57 inch), SITRANS LVL200 can be mounted in small pipes and applications with confined space. The LVL200 can be used to measure products with a minimum density of > 0.5 g/cm³ (0.018 lb/in³). The LVL200 can be used in difficult conditions including turbulence, air bubbles, foam generation, build-up, or external vibration.
SITRANS LVL200 continuously monitors faults via frequency evaluation, providing early detection of strong corrosion or damage on the tuning fork, loss of vibration, or a line break to the piezo drive.
The tuning fork is piezoelectrically energised and vibrates at its mechanical resonance frequency of approximately 1200 Hz. The vibration frequency changes when the tuning fork is covered by the medium. This change is detected by the integrated oscillator and converted into a switching command. The integrated electronics evaluate the level signal and output a switching signal, directly operating connected devices.
The optional signal conditioner provides a remote test feature to ensure continuous product reliability.
Key Applications: for use in liquids and slurries, for level measurement, overflow, and dry run protection.
| Specification | Value |
|---|---|
| Mode of operation - Measuring principle | Vibrating point level switch |
| Input - Measured variable | High and low and demand (via mode switch) |
| Output options | Relay output (DPDT), 2 floating SPDTs Contactless electronic switch 2-wire Namur signal output Transistor (NPN/PNP) 10 ... 55 V DC 8/16 mA |
| Measuring accuracy - Repeatability | 0.1 mm (0.004 inch) |
| Measuring accuracy - Hysteresis | Approx. 2 mm (0.08 inch) with vertical installation |
| Switching delay | Standard, Extended: approx. 500 ms (on/off) High temperature: approx. 1 s (optionally adjustable at factory) |
| Frequency | Standard, Extended: Approx. 1200 Hz High temperature: 1400 Hz |
| Rated operating conditions - Location | Indoor/outdoor |
| Ambient conditions - Ambient temperature | ‑40 ... +70 °C (‑40 ... +158 °F) |
| Ambient conditions - Storage temperature | ‑40 … +80 °C (‑40 … +176 °F) |
| Ambient conditions - Installation category | III |
| Ambient conditions - Pollution degree | 2 |
| Medium conditions - Temperature - LVL200S Standard | -50 ... +150 °C (-58 ... +302 °F) |
| Medium conditions - Temperature - LVL200S High temperature option | -50 ... +250 °C (-58 ... +482 °F) |
| Medium conditions - Temperature - LVL200E Standard: with 316L/Alloy C22 | -50 ... +150 °C (-58 ... +302 °F) |
| Medium conditions - Temperature - LVL200E High temperature option with 316L/Alloy C22 | -50 ... +250 °C (-58 ... +482 °F) |
| Medium conditions - Temperature - LVL200H High temperature | -196 … +450 °C (-321 … +842 °F) |
| Medium conditions - Pressure (vessel) - Standard, Extended | -1 ... 64 bar g (-14.5 ... 928 psi g) |
| Medium conditions - Pressure (vessel) - High temperature instrument version | -1 … 160 bar/-100 … 16 000 kPa (-14.5 … 2320 psi g) |
| Medium conditions - Density | 0.7 ... 2.5 g/cm³ (0.025 ... 0.09 lb/in³); 0.5 ... 2.5 g/cm³ (0.018 ... 0.09 lb/in³) by switching over Density optionally starts at 0.47 cm3 (0.017 lb/in3) |
| Design - Material - Enclosure | Aluminium die-cast AISi10Mg, powder-coated, basis: Polyester Stainless steel housing, electropolished 316L Stainless steel housing, precision casting 316L Plastic housing, plastic PBT (Polyester) |
| Design - Material - Tuning fork | 316L (1.4404 or 1.4435), Alloy C22 |
| Design - Material - Extension tube [ø 21.3 mm (0.839 inch)] | 316L (1.4404 or 1.4435), Alloy C22 |
| Design - Material - Process connection: threaded | Standard, Extended: 316L (1.4404 or 1.4435), Alloy C22 High temperature: Inconel 718 |
| Design - Material - Process connection: flange | 316L (1.4404 or 1.4435), 316L with Alloy C22, ECTFE, or PFA coating |
| Design - Material - Process seal | Klingersil C-4400 |
| Design - Process connection - Pipe thread, cylindrical (ISO 228 T1) | G ¾" A, G 1" A |
| Design - Process connection - Pipe thread, tapered | ¾" NPT, 1" NPT, 1½" NPT |
| Design - Process connection - Flanges | DIN from DN 25, ASME from 1" |
