Operating Instructions OPTISWITCH 3000 C with NAMUR output
Contents Contents 1 About this document 1.1 1.2 1.3 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. .. 5 5 5 5 Configuration. . . . . . . Principle of operation . Operation . . . . . . . . . Storage and transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .. .. .. 6 6 7 7 General instructions. . . . . . . . . . . . . . . . . .
Contents 9.2 9.3 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Certificates . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Supplementary operating instructions manuals Information: OPTISWITCH 3000 C is available in different versions. Depending on the selected version, supplementary operating instructions manuals may also come with the shipment. The supplementary operating instructions manuals are listed in section "Product description.
About this document 1 About this document 1.1 Function This operating instructions manual has all the information you need for quick setup and safe operation. Please read this manual before you start setup. 1.2 Target group This operating instructions manual is directed to trained, qualified personnel. The contents of this manual should be made available to these personnel and put into practice by them. 1.3 Symbolism used Information, tip, note This symbol indicates helpful additional information.
For your safety 2 For your safety 2.1 Authorised personnel All operations described in this operating instructions manual must be carried out only by trained specialist personnel authorised by the operator. For safety and warranty reasons, any internal work on the instruments must be carried out only by personnel authorised by the manufacturer. 2.2 Appropriate use OPTISWITCH 3000 C is a sensor for level detection.
Product description 3 Product description 3.1 Configuration Scope of delivery The scope of delivery encompasses: l l Components OPTISWITCH 3000 C level sensor Documentation - this operating instructions manual - Supplementary instructions manual "Plug connector for level sensors" (optional) OPTISWITCH 3000 C consists of the following components: l l l Housing cover Housing with electronics process fitting with tuning fork 1 2 3 Fig.
Product description Fault monitoring The electronics of OPTISWITCH 3000 C continuously monitors the following criteria: l l Correct vibrating frequency Line break to the piezo drive If one of these faults is detected, the electronics signals this via a defined current to the signal conditioning instrument. The connection cable to the vibrating element is also monitored. Physical principle The tuning fork is piezoelectrically energised and vibrates at its mechanical resonance frequency of approx. 150 Hz.
Product description Storage and transport temperature l l Storage and transport temperature see "Supplement Technical data - Ambient conditions" Relative humidity 20 … 85 % 31355-EN-060830 8 OPTISWITCH 3000 C - with NAMUR output
Mounting 4 Mounting 4.1 General instructions Switching point In general, OPTISWITCH 3000 C can be mounted in any position. The instrument must be mounted in such a way that the vibrating element is at the height of the requested switching point. Moisture Use the recommended cables (see chapter "Connecting to power supply") and tighten the cable gland.
Mounting Warning: The housing must not be used to screw in the instrument! Applying tightening force on the housing can damage its internal mechanical parts. To screw in, use the hexagon above the thread. 4.2 Mounting instructions Socket The vibrating element should protrude into the vessel to avoid buildup. For that reason, avoid using mounting bosses for flanges and screwed fittings. This applies particularly to use with adhesive products.
Mounting Horizontal mounting To achieve a very precise switching point, you can install OPTISWITCH 3000 C horizontally. However, if the switching point can have a tolerance of a few centimeters, we recommend mounting OPTISWITCH 3000 C approx. 20° inclined to the vessel bottom to avoid buildup. a. b. 20° Fig. 4: Horizontal mounting a Protective sheet b Concave protective sheet for abrasive solids If OPTISWITCH 3000 C is mounted in the filling stream, unwanted switching signals may be generated.
Mounting 1 2 Fig. 5: Orientation of the tuning fork in case of flow 1 Marking with screwed version 2 Direction of flow Adhesive products In case of horizontal mounting in adhesive products, the surfaces of the tuning fork should be vertical in order to reduce buildup on the blades. On the screwed version you will find a marking on the hexagon. With this, you can check the position of the tuning fork when screwing it in. When the hexagon touches the seal, the thread can be still turned by approx.
Connecting to voltage supply 5 Connecting to voltage supply 5.1 Preparing the connection Note safety instructions Generally not the following safety instructions: l Select power supply Connect only in the complete absence of line voltage Connect the power supply according to the following diagrams. Take note of the general installation regulations. As a rule, connect OPTISWITCH 3000 C to vessel ground (PA), or in case of plastic vessels, to the next ground potential.
Connecting to voltage supply 10 Screw the housing cover back on The electrical connection is hence finished. Fig. 7: Connection steps 5 and 6 5.
Connecting to voltage supply Wiring plan For connection to an amplifier acc. to NAMUR (IEC 60947-5-6, EN 50227). For further information see Technical data in the Supplement. Further information you will find in the "Technical data" in the "Supplement", "Ex technical data" are specified in the attached "Safety instructions manual". - + 1 2 - + 31355-EN-060830 Fig.
Set up 6 Set up 6.1 General The numbers in brackets refer to the following illustrations. Function/Configuration On the electronics module you will find the following indicating and adjustment elements: l l l DIL switch for mode adjustment - min./max. (1) Simulation key (3) Signal lamp (4) 6.2 Adjustment elements 5 VB60N NAMUR IEC 60947-5-6 1 Simulation 4 2 3 Fig.
Set up The NAMUR output can be switched over to falling or rising characteristics (see also "Function chart"). Simulation key (2) The simulation key is located in a recess on the upper side of the oscillator. Push the simulation key with a suitable object (screwdriver, pen, etc.). When the key is pushed, a line break between sensor and processing unit is simulated. The signal lamp on the sensor extinguishes. The measuring system must signal a fault and take on a safe condition when the key is pushed.
Set up Level Signal current Sensor Rising characteristics min. >=2.2 mA Rising characteristics min. <=1.0 mA Failure any Control lamp <=1.
Maintenance and fault rectification 7 Maintenance and fault rectification 7.1 Maintenance When used as directed in normal operation, OPTISWITCH 3000 C is completely maintenance free. 7.2 Rectify faults Causes of malfunction OPTISWITCH 3000 C offers maximum reliability. Nevertheless faults can occur during operation. These may be caused by the following, e.g.: l l l l Sensor Process Power supply Signal processing Fault rectification The first measure to be taken is to check the output signal.
Maintenance and fault rectification l Wrong characteristics selected à Set the correct characteristics on the characteristics reversal switch (overfill protection; dry run protection). Wiring should be carried out according to the quiescent current principle. ? Signal lamp flashes yellow l Fault in the electronics à Exchange the electronics ? Signal lamp flashes yellow l instrument defective à Exchange instrument or return instrument for repair 7.
Maintenance and fault rectification 1 2 Fig. 11: Loosen the screws 1 Electronics module 2 Screws (2 pcs.) 6 Remove the old oscillator 7 Compare the new oscillator with the old one. The type label of the oscillator must correspond to that of the old oscillator. 8 Compare the settings of the two oscillators. Set the adjustment elements of the new oscillator to the same setting of the old one. Information: Make sure that the housing is not rotated during the electronics exchange.
Maintenance and fault rectification 7.4 Instrument repair If a repair is necessary, please proceed as follows: You can download a return form from our website http://www. krohne-mar.com/fileadmin/media-lounge/PDF-Download/ Specimen_e.pdf. By doing this you help us carry out the repair quickly and without having to call back for needed information.
Dismounting 8 Dismounting 8.1 Dismounting procedure Warning: Before dismounting, be aware of dangerous process conditions such as e.g. pressure in the vessel, high temperatures, corrosive or toxic products etc. Take note of chapters "Mounting" and "Connecting to power supply" and carry out the listed steps in reverse order. 8.2 Disposal The instrument consists of materials which can be recycled by specialised recycling companies.
Supplement 9 Supplement 9.1 Technical data General data Material 316L corresponds to 1.4404 or 1.4435 Materials, wetted parts - Process fitting - thread plastic PBT (Polyester) - Process seal - Thread Klingersil C-4400 - Tuning fork 316L Materials, non-wetted parts - Housing plastic PBT (Polyester) - Seal ring between housing and housing cover silicone - Ground terminal 316L Weight 1500 g (53 oz) Max.
Supplement Process pressure -1 … 6 bar/-100 … 600 kPa (-14.5 … 87 psi) Process temperature -50 … +100 °C (-58 … +212 °F) Density >0.08 g/cm³ (0.003 lbs/in³) Electromechanical data Cable entry/plug1) - Single chamber housing l or: l 1x cable entry M20x1.5 (cable-ø 5 … 9 mm), 1x blind stopper M20x1.5 1x closing cap ½ NPT, 1x blind plug ½ NPT or: l Spring-loaded terminals 1x plug (depending on the version), 1x blind plug M20x1.5 for wire cross-section up to 1.5 mm² (0.
Supplement 9.2 Dimensions 22mm (55/64") 30,4mm (1 13/64") OPTISWITCH 3000 C G1½A 220,5mm (8 11/16") 150mm (5 29/32") ø 43mm (1 11/16") Fig.
Supplement 9.3 Certificates 31355-EN-060830 CE declarations of conformity Fig.
Subject to change without notice 31355-EN-060830
