USER'S MANUAL
Contents
1. NPT 1 NPT 1 4 RO NPT 8 i S H yg fi S g fi 3 3 i i S 2 i i i 3 A B C z sl i R300 100 89 120 i R400 93 89 118 Figure 3 3 INSTALLATION Prior to installation it is advised to check the switching function for proper adjustment on a sample quantity of material see Calibration The unit may not work with mediums within the specified density range but having very large size of granules or extremely little friction WARNING Handle the device with great care especially the sensing probe Any impact on the sensing probe may ruin its resonance system A protective shield should be installed see Figure 6 if the probe is exposed to falling material or a excessive mechanical load Screw in the device by its hexagon neck After screwing tight the process connection the housing can be rotated max 300 to adjust the cable gland to the required position It might be necessary to install the device at an offset level position relative to the switching level actually required taking into account caving or arching of the material in the silo see Figure 4 High level indication Low level indication S TT Figure 4 With powder level detection device should be installed at an inclination exceeding the angle of repose or in case of high level detection vertically to prevent powder deposition on vibrating rod2. The a switch B is to be selected to comply with requirements of the process control technology the units is used for Note The instrument may be damaged via switches by electrostatic discharge ESD thus the precautions commonly used to avoid ESD is to be applied 5 ELECTRICAL CONNECTION AB G Status LED Status LED PE FE Figure 7 Electrical connection of relay output version Figure 8 Electrical connection of a optocoupled sink input to a solid state output version supplied from a AC line ABC Overload LED Status LED Status LED Device to be gt controlled 5V B Q lt 5W N IN N k 1 F ae PE GND gi PE Figure 9 Figure 10 Electrical connection of a load to a a solid state output version supplied from a AC line Electrical connection of a logical voltage input to a solid state output version supplied from a AC line 5 1 OPERATING DIAGRAM Baret GREEN 6 ENERGISED VIBRATING COVERED HIGH So gs DE ENERGISED so 6 VIBRATING DE ENERGISED FREE Ce es HIGH GREEN o6 ENERGISED o 4 NOT LIT o 6 HIGH DE ENERGISED 5 2 The regulations of EN 50281 1 2 European Standard must be fulfilled temperature dust layer thickness etc 6 MAINTENANCE REP
3. plug in type terminal block for max 1 5 mm wire cross section ingress protection IP 67 NEMA6 MSZ EN 60529 2001 Electrical protection Class Explosion proof protection mark II 1 2D IP 65 10 sensor 2D housing except version with plastic housing Weight with plastic housing 1 56 kg 1 56 kg 1 4 kg m 1 56 kg 0 6 kg m Housing material Process connection Poeren Supply voltage universal Electrical connections extension aluminium housing 1 94 kg 1 94 kg 1 4 kg m 1 94 kg 0 6 kg m 2 1A TEMPERATURE DATA x C Ex version eee RKK 3 RKG 3 Ruha RN Manufacturer 4 i NIVELCO Process Control Co Medium temperature range category 1D 30 C 110 C 30 C 95 C 30 C 160 C H 1043 Budapest Dugonics u 11 Max surface temperature T 110 C 95 C 160 C Phone 36 1 369 7575 Fax 36 1 369 8585 Ambient temperature range category 2D 30 C 50 C 30 C 60 C 30 C 35 C E mail sales nivelco com http Awww nivelco com Max surface temperature T at process connection cable gland 90 C 85 C 135 C category 2D may depend on friction and granular size of the medium in the presence of explosive atmosphere 0 8 1 1 bar 2 2 Output versions RELAY SOLID STATE M F ROO OOD 1 ROO O00 3 LA ROD O00 2 ROD O00 4 Mia RO0 000 5 RO0 000 7 RKH RODO O00 6 RODO O00 8 RHH RKR F Output SPDT potential fr
4. AIR The NIVOCONT R 300 R400 series devices do not require maintenance on a regular basis In some instances however the vibrating section may need a cleaning from deposited material This must be carried out gently without harming the vibrating section of the vibrating rod Repairs during or after the guarantee period are effected at the Manufacturers The equipment sent back for repairs should be cleaned or neutralised desinfected by the User 7 STORAGE CONDITIONS Ambient temperature 35 to 60 C Relative humidity max 98 8 WARRANTY All Nivelco products are warranted free of defects in materials or workmanship for a period of two years from the date of purchase Repairs under guarantee are carried out at the Manufacturer s premises The Purchaser is liable for costs of dismantling and re installation as well as transport costs Nivelco shall not be liable for misapplication labour claims direct or consequential damage or expense arising from the installation or use of equipment o 4 RED RED GI rkh3011a0600h_03 2002 August Nivelco reserves the right to change technical specifications without notice
5. Thank you for choosing a NIVELCO instrument We are sure that you will be satisfied throughout its use NIYOCONT R 300 R 400 SERIES 1 APPLICATION VIBRATING ROD LEVEL SWITCHES The vibrating rod is a mechanical resonant system excited and kept in resonance by an electronic unit The medium to be measured when reaching the vibration rod end will damp the vibration The change in vibration intensity is sensed by an electronic unit which upon the elapse of the delay time actuates the output circuit 2 0 TECHNICAL DATA 2 1 GENERAL SPECIFICATION USER S MANUAL ersion Standard Pipe extended Cable extended lt Probe length 1 20m Be Probe 1 4571 i Parts protruding into the tank 1 4571 Cable PE coated S J Aluminium Powder paint coated R 300 Plastic PBT fibre glass reinforced flame retardant DuPont R 400 RKH RHH RKR RHR RKK 1 1 2 BSP RKN RHN RKL RHL RKC 1 1 2 NPT emperature ranges see TABLE2 1a and Derating diagram ax pressure absolute 25 bar 2 5 MPa 6 bar 0 6 MPa Minimum medium density 0 05 kg dm max granular size 10 mm Response time Not vibrating covered lt 1 8 sec or 5 1 5 sec selectable Vibrating free lt 2 sec or 5 1 5 sec Voltage version I 16 40V AC 50 60Hz 19 55V DC Voltage version Il 85 265V AC 50 60Hz 120 375V DC Power consumption Voltage version lt 2 5 VA 1 2W Voltage version II lt 2 5 VA 1 3 W 2 pcs Pg16 for Z8 to 15 mm cables 2 pcs
6. ee SPST electronic RKN RHR Output rating 250 V AC 8A AC 1 350 mA 50V pick RHN A io Output protection Overvoltage overcurrent and overload F 445N M 85Nm F 45kN protection M 85 Nm Voltage drop switched of state lt 1 7 V 350 mA Figure 1 Residual current switched on state lt 10 pA Torque and force Derating diagram 2 3 ACCESSORIES tcl Uer s manual 50 Warranty card 2pcs 3 pole terminal block 1 sealing for BSP only 2pcs Pg 16 cable gland i 0 30 0 L 30 t Figure 2 Ambient temperature Ta versus medium temperature Tw 2 4 ORDER CODE i gt 50 75 10010 160 Tuf c VERSION CODE process ___ come HOUSING CODE CONN STANDARD PIPE CABLE psp Hn r k benr n Jif c PROTRUSION LENGTH__ STANDARD PIPE CABLE 235mm_ f oo o5 3m f 05 30 1 20m_ TT 2 SUPPLY OUTPUTIEX CODE 85 265 V AC 120 375 V DC relay 1 16 40 V AC 19 55 V DC relay f 2 85 265 V AC 120 375 V DC solid state _ 3 16 40 V AC 19 55 V DC solid state oa only for standard and pipe extended version 5 265 V AC 120 375 V DC relay Ex 6 40 V AC 19 55 V DC relay Ex 5 265 V AC 120 375 V DC solid state Ex 16 40 V AC 19 55 V DC solid state Ex 2 5 DIMENSION STANDARD PIPE EXTENDED CABLE EXTENDED T BSP 1 BSP 1
7. that might substantially reduce the self cleaning effect Also avoid mounting the rod in a recess see Figure 5 Oy o a Ra Sy L30x30x3 Figure 6 Figure 5 In case of tanks that are likely to be exposed to intense vibrations necessary provisions shall be made for damping the vibrations acting on the device e g vibration damping inserts made of rubber have to be applied 4 ADJUSTMENT Remove the top cover of the housing to access the connection terminals and adjusting switches Do not remove the wire form terminal pin 1 Figure 7 because it is an internal connection For grounding the unit use the PE grounding screw terminal PE After proper installation and the electrical connection established the device is ready for operation The switched on state is indicated by the lighting of the LED The DENSITY switch A switch is to be set in accordance with the density of the material LOW position recommended for loose and light materials with density below 0 1 kg dm represents small energy and amplitude of vibration as well as great sensitivity of detection HIGH position recommended for thick and heavy materials with density over 0 1 kg dm represents vibration with great energy and amplitude and small sensitivity of detection To obtain FAIL SAFE alarm switch C use the de energised or open state of the output as an alarm thus a power breakdown will also be considered as alarm see Table below
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