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rk34s02a0602b

LEVEL SWITCHES :: Vibration - NIVOCONT R - 7110 NIVOCONT R-300 AND R-400 SERIES OF VIBRATION RODS

Advantages such as robustness, self-cleaning formost mediums through vibration, pressure & corrosion resistance and great life span offered by Vibration Rods (also called Tuning Rods) make them the optimal solution for single point level switching in free flowing solids. Because of these excellent features the vibration rods from Nivelco are considered as one of the most reliable level switching devices. The vibration rod is energised and kept in resonance by an electronic circuit. When covered by material the damping of the vibration will be detected by the electronics which, after a built-in programmable time delay, initiate the switching of the output relay.The NIVOCONT is specifically designed for providinghigh or low level switching signals in silos or bins containing free-flowing powders and granular materials such as carbon black, sugar, grain, cement, lime, sand etc. with a material bulk density of 50 kg/m

TECHNICAL DATA

MODEL STANDARD ROD EXTENDED CABLE EXTENDED Outline Probe length 235 mm 0.3 to 3 m 1 to 20 m Parts protruding into tank SS316Ti (1.4571) Probe: SS316TiCable: PE coated Housing material Powder paint coated aluminium (R-300)Flame retardant plastic (R-400)

APPLICATION

Process connection 1
1/2 ” BSP or 1
1/2 ” NPT Temperature ranges Process temp. RK: –30°C to +110°C RH: –30°C to +160°C –25 °C to +90°C

½ " BSP/NPT socket, either on thetop or in the sidewall of the silo the unit is easy to installand simple to commission. The Ex version is approved for use in dust hazardous areas (Zone 20).

Ambient temp. –30°C to +60°C Max. pressure (absolute) 25 bar (2.5 MPa) 6 bar (0.6 MPa) Minimum medium density 0.05 kg/dm
3 Voltage version I.: 16 ... 40V AC (50/60 Hz) or 19 ... 55V DCVoltage version II.: 85 ... 265V AC (50/60 Hz) or 120 ... 375V DC

3

Supply voltage

or more. Manufactured in three different versions the standard unit is designed for side mounting in vessels whereas the rigid extended and the flexible cable extended versions are intended for vertical installation. Requiring only a1

Power consumption Voltage version I.: ≤ 2.5 VA, 1.2WVoltage version II.: ≤ 2.5 VA, 1.3W Output SPDT relay 250 V AC, 8A, AC1 or solid state (SPST) DC 350 mA/50V Response time 2 sec or 5 sec (selectable) Ingress protection IP 67 (NEMA6) Electrical protection Class I. Explosion proof protection mark ATEX II 1/2 D IP 65 T Certificates by DMT Techical info Data sheet RK34A
Technical specification may be changed without notice

NIVELCO PROCESS CONTROL CO.

H-1043 BUDAPEST, DUGONICS U.11

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TEL.:(36-1) 369-7575 FAX:(36-1) 369-8585 E-mail:sales@nivelco.com http://www.nivelco.com