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OPTISWITCH 4000 C Vibration Level Switch
Brand: Krohne
OPTISWITCH 4000 C series is a level sensor that uses a vibrating fork for detecting level. It is designed for use in all liquids.
It is not affected by foam and external vibration. It is also unaffected by variations of product properties such as εr, viscosity etc.
Features- Output options: relay, transistor, NAMUR, contactless electronic switch and 2-wire
- LED signal lamp for indicating the switching condition (with plastic housing only)
- Repeatability: ±2 mm
- Thread connections G/NPT 3/4"; flange sizes from DN25 PN40; Triclamp 1" or 2" and other hygienic fittings
Specifications
Brand
Ambient Temperature Range
- Housing: -40° to 70° C (-40° to 158° F)
Applications
- Chemical Industry
- Dry-Run & Overfill Protection
- Food & Beverage
- Hygienic & Sanitary Applications
- Oil & Gas Applications
- Process & Storage Tanks for Liquids
- Reactors
- Water & Wastewater
Approvals & Certifications
- ATEX II 1/2 G, 2 G EEx d IIC T6, ATEX II 1/2 D IP66 T6, ATEX II 1/2 G, 2 G EEx d IIC T6, ATEX II 1/2 D IP6X T
- CE
- EMC (89/336/EEC): Emission EN 61326, A1: 1998 (Class B), Immunity EN 61326: 1997, A1: 1998
- LVD (73/23/EEC): EN 61010-1: 2001
Approvals & Certifications
- Functional Safety According to IEC 61508
BSP Connection
- G 1” A Male
- G 3/4” A Male
Cable Entry
- 1 x 1/2” NPT, 1 x Blind Stopper 1/2” NPT
- 1 x M20x1.5 (Cable: Ø 5 to 9 mm), 1 x Blind Stopper M20x1.5
Consumption
- Contactless Electronic Switch: Approximately 3 mA (Via Load Circuit)
- Transistor Output: 0.5 W, Max.
Current
- Transistor Output (Blocking Current): < 10 µA
- Transistor Output (Load Current): Max.
Delay Time
- When Immersed: Approximately 0.5 second
- When Uncovered: Approximately 1 second
Density Range
- > 0.7 g/cm² (> 0.025 lbs/in²)
Electrical Connectors
- Plug Connection: 1 x Plug DIN 43650
- Plug Connection: 1 x Plug M12 x 1
- Screwed Terminals: for Wire Cross-Section up to 1.5 mm²
Enclosure, Body Material
- 316L Stainless Steel
- Plastic PEI
Environmental Protection
- M12 x 1 Plug Connection (Transistor Output): IP66
- Valve Plug with IDC Method of Termination & M12 x 1 Plug (Transistor Output): IP67
- Valve Plug: IP65
Frequency
- Approximately 1,200 Hz
Function
- Level Detection of Liquids
Gasket Material
- Klingersil C-4400
Hysteresis
- Approximately 2 mm (0.08”) with Vertical Installation
Indication
- Control Lamp: LED Signal Lamp for Indicating the Switching (Plastic Housing Only)
Materials of Construction
- LASER Marking: Aluminum Foil Label
Measuring Time
- Integration Time: Approximately 500 milliseconds
NPT Connection
- 1” NPT Male
- 3/4” NPT Male
Output Format
- Contactless Electronic Switch
- Transistor Output
Process Connection Material
- Process Fitting (Thread): 316L Stainless Steel
Process Temperature
- High Temperature Version: -40° to 150° C (-40° to 302° F)
- Standard: -40° to 100° C (-40° to 212° F)
Repeatability
- ± 2 mm
Sensor Protection
- Transistor Output: Overload & Permanently Shortcircuit Proof
Sensor, Probe Style
- Tuning Fork
Storage Temperature
- -40° to 80° C (-40° to 176° F)
Supply Voltage
- Contactless Electronic Switch: 20-253 Vac/dc, 50/60 Hz
- Transistor Output: 10-55 Vdc
Switch Type
- Floating Transistor (NPN)
System Pressure
- psi: -14.5 to 928 (kPa: -100 to 6,400, bar: -1 to 64)
Tri-Clamp Connection
- 1” Tri-Clamp
- 1-1/2” Tri-Clamp
Viscosity
- 0.1 to 10.000 MPa S (Requirement: with SG=1)
Voltage
- Transistor Output (Turn-On): Max.
- Transistor Output (Voltage Loss): 1 V, Max.
Wetted Materials
- Vibrating Element: 316L Stainless Steel
