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Description
OPTISWITCH is a level sensor with tuning fork for level detection. It is designed for industrial use in all areas of process technology and is preferably used for bulk solids.
The vibrating element (tuning fork) is energized piezoelectrically and vibrates at its mechanical resonance frequency. The piezos are fixed mechanically and are hence not subject to temperature shock limitations.
If the vibrating element is submerged in the product, the vibrating amplitude changes. This change is detected by the integrated oscillator and converted into a switching command.
Typical applications are overfill and dry run protection. Thanks to its simple and robust measuring system, OPTISWITCH is virtually unaffected by the chemical and physical properties of the bulk solid. It functions even when exposed to strong external vibration or changing products.
Fault Monitoring
The electronics of OPTISWITCH continuously monitors the following criteria:
- Correct vibrating frequency
- Line break to the piezo drive
If one of the stated malfunctions is detected or in case of power failure, the electronics takes on a defined switching condition, e.g. the relay deenergises (safe condition).
Specifications
Specifications
Brand
Ambient Temperature Range
- -40° to 70° C (-40° to 158° F) on the Housing
Applications
- Plastic Processing
- Solid Detection in Water
Approvals & Certifications
- Recurring Function Test (NAMUR & 2-Wire Electronics): SIL 2 According to IEC 61508 (Redundant, Stage SIL 3)
Approvals & Certifications
- ATEX II 1/2 G, 2 G EEx d IIC T6, ATEX II 1/2 D IP66 T, ATEX II 1 G, 1/2 G, 2 G EEx ia IIC T6, ATEX II 1 G, 1/2 G, 2 G EEx ia IIC T6 + ATEX II 1/2 D IP66 T6
- CE: EMVG (89/336/EWG), Emission: EN 61326: 1997, EN 61326/A1: 1998 (Class B), Susceptibility: EN 61326: 1997/A1: 1998, NSR (73/23/EWG), EN 61010-1: 2001
- CSA: Class I/II/III, Div. 1, Groups A, B, C, D, E, F, G (NI, IS, XP)
- FM: Class I/II/III, Div. 1, Groups A, B, C, D, E, F, G (NI, IS, XP)
BSP Connection
- G 1-1/2” 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
- 1 x Plug M12x1
Enclosure, Body Material
- 316 Stainless Steel
- Aluminum Die Casting Powder-Coated
- Plastic PBT (Polyester)
Environmental Protection
- Dust Explosion Protection
- IP66
- IP67
Process Connection Material
- Process Fitting (Thread & Flange): 316 Stainless Steel for OPTISWITCH 3100 C, 3200 C & 3300 C
- Process Fitting (Thread): PBT for OPTISWITCH 3000 C
Process Temperature
- -20° to 80° C (-4° to 176° F) for OPTISWITCH 3200 C
- -50° to 150° C (-58° to 302° F) for OPTISWITCH 3100 C & 3300 C
- -50° to 100° C (-58° to 212° F) for OPTISWITCH 3000 C
Seat / Seal Material
- Seal Ring between (Aluminum/Plastic) Housing & Housing Cover: Silicone
- Seal Ring between (Stainless Steel) Housing & Housing Cover: NBR
- Seal: Chloroprene Rubber (CR) for OPTISWITCH 3200 C
- Seal: Chlorosulfonated Polyethylene Rubber (CSM) for OPTISWITCH 3200 C
- Seal: Kligersil C 4400 for OPTISWITCH 3100 C & 3300 C
Sensor Protection
- Transistor Output: Overload & Permanently Shortcircuit Proof
Sensor, Probe Style
- Tuning Fork
Sensor, Probe Type
- NAMUR Processing System According to IEC 60947-5-6 (EN 50227 / DIN 19234)
Storage Temperature
- -40° to 80° C (-40° to 176° F)
Supply Voltage
- 2-Wire Output: 10-36 Vdc (Via the Signal Conditioning Instrument)
- NAMUR Output: Approximately 8.2 V for Connection to Amplifier According to NAMUR IEC 60947-5-6
- Relay Output & Contactless Electronic Switch: 20-253 Vdc/ac, 50/60 Hz
- Relay Output: 20-72 Vdc (At U > 60 Vdc, the Ambient Temperature Can Be, Max.
- Transistor Output: 10-55 Vdc
Switch Type
- Floating Transistor (NPN)
- Relay Output: 2 Floating SPDT's
- Relay Output: DPDT
System Pressure
- psi: -14.5 to 232 (kPa: -100 to 1,600, bar: -1 to 16) for OPTISWITCH 3100 C & 3300 C
- psi: -14.5 to 87 (kPa: -100 to 600, bar: -1 to 6) for OPTISWITCH 3200 C & 3000 C
Wetted Materials
- BPT
- Vibrating Element: 316L Stainless Steel / 318S13 (1.4462)
