The Analytec 720.0020SE (OLS-C20) is an optoelectronic liquid level limit switch designed for high pressure applications up to 50 bar. Also designated as the OLS-C (old type: 7200020SE-59___K3P), this durable sensor features a robust stainless steel 316Ti (DIN 1.4571) construction and an M16x1,5 process connection. It operates within a fluid temperature range of -30°C to 135°C and can be installed in any mounting position. Powered by a 24 V DC supply, the unit provides a PNP transistor output with a closing on rising level (SPST) contact function. The liquid level switch comes equipped with a 3-meter PVC cable and achieves an IP66 ingress protection rating, making it well-suited for demanding industrial environments requiring reliable optical liquid level detection under pressure.
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| Manufacturer | Analytec |
|---|---|
| Country | |
| Part number | 720.0020SE (OLS-C20) |
| Inner Code | 3400769 |
| Product type | Optoelectronic liquid level limit switch |
|---|---|
| Part number | 720.0020SE (OLS-C20) |
| Catalogue title | 720.0020SE (OLS-C20) Kleingrenzschalter |
| Design | High pressure design |
| Old type | 7200020SE-59___K3P |
| New type | OLS-C |
| Pressure | 50 bar |
| Max. fluid temperature | 135°C |
| Min. fluid temperature | -30°C |
| Electrical connection | Cable PVC |
| Cable length | 3 m |
| Mounting position | Any |
| Process connection size | M16x1,5 |
| Material | Stainless steel 316Ti (DIN 1.4571) |
| Output | PNP transistor |
| Contact | Closing on rising level (SPST) |
| Power supply | 24 V DC |
| Ingress protection | IP66 |