KROHNE OPTISWITCH 6700 Capacitive Level Transmitter
Capacitance level switch for hygienic and industrial applications
- With IO-Link interface for quick configuration; two freely programmable outputs available, e.g. IO-Link/PNP, IO-Link/NPN, IO-Link/4…20 mA, etc.
- Point level detection of liquids, solids and liquid-liquid interface
- -40…+115°C / -40…+239°F (extended length version up to +150°C / +302°F); non-hygienic version up to 100 bar / 1450 psi
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Description
Description
Specifications
Depending on selected device configuration
General information
| Product type | Level switch |
| Product family name | OPTISWITCH |
| Product positioning | For hygienic and industrial applications |
| Product variants | OPTISWITCH 6700 C: Compact housing |
| Measurement variables | Level |
| Measurement principle | Capacitance |
| Level measurement type | Point level detection |
| Contact to measured medium | Yes |
| Interface measurement | Yes |
| Redundancy | No |
| Measured media | Liquids, Liquid/liquid interface, Foam, Slurries, Pastes, Solids, Bulk solids, Granulates, Powders |
Operating conditions
| Process pressure | -1…100 bar/ -14.5…1450 psi Variant with G½ hygienic: max. 10 bar / 145 psi Variant with sliding connection: max. 5 bar / 72,5 psi |
| Process temperature | -40…+115°C/ -40…+239°F Variant with sliding connection: up to +150°C / +302°F |
Materials
| Gaskets | Ethylene propylene diene monomer (EPDM), Fluoroelastomer rubber (FKM), Nitrile butadiene rubber (NBR), Silicone |
| Wetted parts | Polyetheretherketone (PEEK) |
Process connections
| Thread connections | Male: G½ (ISO 228-1) G½ (DIN 3852-E) ½ NPT G¾, reverse-threaded (ISO 228-1) G½ for hygienic adapters |
| Hygienic adapters | Collar ferrule (DIN 11851): DN25, DN40, DN50 Tri-Clamp®: 1½”, 2″ Clamp (DIN 32676): DN25, DN32, DN40, DN50 Clamp (ISO 2852): 25, 38, 51 Varivent®: N Collar ferrule (SMS 1147): 51 mm Weld-in sleeve: 30 mm / 1.2″ Weld-in sleeve with shoulder: 29 mm / 1.1″ Collared weld-in sleeve: 45 mm / 1.8″ Spherical weld-in sleeve: 35 mm / 1.2 |
Approvals/Standards
| Certificates/Approvals Hygienic | FDA, EHEDG, EC 1935/2004, EC2023/2006 |
| Ingress protection | IP67, IP69K |
Communication
| Analogue outputs | 4…20 mA |
| Discrete outputs | NPN/PNP |
| Digital outputs | IO-Link |
Features & Options:
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- Level switch with IO-Link communication for automated sensor configuration
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- Problem solver for adhesions and difficult products: level detection not affected by product build-up, foam or condensate
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- Two switching outputs for different trigger thresholds allow monitoring of different processes or measured media
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- Switch points can be indicated by 360° multicolour LEDs: available with transparent polycarbonate collar or with the LEDs collar-protected by a metal crown
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- Stainless steel housing with PEEK sensor material
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- Optimal sensor shape: Easy-to-clean, minimised risk of clogging by sticky products
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- Maintenance-free, can be installed in any mounting position
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- Wide variety of hygienic adapters available
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- Also available with a sliding connection for tanks with thick wall thickness / insulation or to overcome high process temperature
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- Sensor version with reverse-threaded G¾ connection allows for mounting in a pipe extension tube for low level detection from the top
Other Available Models:
- OPTISWITCH 6500
- OPTISWITCH 6600
- OPTISWITCH 6700
