Krohne OPTISWITCH 6500 Capacitance Level Switches

Made in Japan
Manufacturer: KROHNE Japan KK
Model: OPTISWITCH 6500

Features

Unaffected by foam, condensate or build-up
Can be set to detect foam or even a change in media characteristics of the same liquid
For media with dielectric constant >1.5
Very fast response times
Maintenance-free ‐ can be installed in any position
Wide variety of hygienic process connections available
Also available with a sliding connection for tanks with thick wall thickness / insulation or to overcome high process temperature
EHEDG and 3A certified; complies with FDA and EC1935/2004

Small tanks in hygienic applications
Tanks with tough, pasty or strongly adhesive media
Overflow protection, high/low-level detection, dry-run or pump protection in tanks
Interface detection
Detection of foam
Blockage prevention
Media recognition

OPTISWITCH 6500

General Information
Product type	Level switch
Product family name	OPTISWITCH
Product positioning	For advanced hygienic applications
Product variants	OPTISWITCH 6500 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
Probe length units to display	mm/in
Probe length	18…250 mm / 0.7…9.8 in
Operating Conditions
Process pressure	-1…16 barg / -14.5…232 psig
Process temperature	-40…+200°C / -40…+390°F
Materials
Gaskets	Ethylene propylene diene monomer (EPDM), Fluoroelastomer rubber (FKM/FPM), Kalrez® 6375, PFA
Wetted parts	Austenitic stainless steel (1.4404/316L)
Process Connections
Thread connections	Male: G½ G½ for hygienic adapters
Hygienic adapters	Collar ferrule (DIN 11851): DN25, DN40, DN50 Tri-Clamp®: 1½”, 2″ 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
Ingress protection	IP67, NEMA4/4X
Certificates/Approvals Ex	ATEX
Certificates/Approvals Hygienic	FDA, 3A
Communication
Discrete outputs	NPN/PNP, Transistor