Vibrating Rod Point Level Switches Manufacturer, Supplier in India, Trumen

About LSVR

Trumen vibrating rod point level switch model LSVR suitable for solids and powder containing fine-grained and non-fluidized bulk solids.

Trumen vibrating rod is a single element tuned mechanical level sensing device. Suitable for a wide range of applications.

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About Trumen

Trumen came into existence in 2009 and initially started with manufacturing of Tuning Fork Level Switches for liquid and solid applications. With time, the manufacturing range increased with addition of Capacitance Level Transmitter & Capacitance Level Switches, RF Admittance Level Switches, Rotating Paddle Level Switches, Conductivity Type Level Switches, Vibrating Rod Level Switches, Hydrostatic Level Transmitter, Radar.

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Features

Compact in size.
Calibration-less operation.
Universal power supply on same termionals
(15 to 80VDC or 15 to 260VAC)
Customized process connection threaded/ flanged/ hygienic etc.
Tropicalized sealed electronics module for easy maintenance and reduced failure Various output options.
Single rod construction for easy maintenance.
Inbuilt settable switching delay 5 sec.

Application

Trumen vibrating rod is used in different applications like-

Free flowing solids, powder, fly ash, clinker, cement, salt, calcium carbonate, sand etc. Please note granuals size should not be more than 25mm.
Process temperature maximum 200 / 250 ° C (available on requirement).
Operating pressure 15 bar maximum.
Minimum bulk density less than (350gm/litre).

PVC Powder

Polyester chips

Pulses

Wheat grain

Operating Principle

Electronics of LSV-R excites the piezo-electric-crystals inside the tuning rod, which makes the rod vibrate at it’s natural resonance frequency in free air.

Amplitudes of vibration are above threshold when rod is free to vibrate.

When Material touches the rod, vibration stops as resonance gets disturbed.

Amplitude of vibration as sensed by the electronics falls below the threshold, Materials presence is thus detected by observing the amplitude of vibration.

Operation

Device operation and settings:
Trumen vibrating rod level switch is very easy to operate-

Open the cover of Trumen LSVR and you can see there are 9 terminals. Terminal 1, 2 & 3 are for auxiliary power supply. Terminal 4, 5, 6 & 7, 8, 9 are for relay output.
Connect the power supply either 15 to 80VDC or 15 to 260VAC on terminal 1 & 2 and switch on the power.
Trumen vibrating rod level sensor starts vibrating in air. power LED is in on and status LED is in OFF conditon.
Now we fill the material solids, granuals or powder up-to the rod level.
You can see the status LED of LSVR is on means material reaches to the high level.
Now we empty the material, you can see the status LED is off means material goes below the sensor.
Relay status also change fron NC to NO.
There are 4 DIP switches provided on connection panel. Via DIP switch no. 1 we can set the sensitivity that means if the material is fluffy in nature or having low bulk density (less than 350gm/litre) we need to ON switch no.1. In this condition LSVR will sense the material. Keep it turned off for normal density (more than 350gm/litre) materials.
Switch no. 2 is to set dry delay means off delay. On the DIP switch no.2 and empty the material. LSVR will wait for 5sec once the material goes below the sensor and after 5 sec it generate switching.
Switch no. 3 is to set wet delay means on delay. On the DIP switch no.3 and fill the material. LSVR will wait for 5sec once the material touches the sensor and after 5 sec it generate switching.
Switch no. 4 is to set fail safe means the instruments should be in alarm condition if the sensor facess power failure. When the sensor is installed for high level keep the DIP switch no.4 is turn off, failsafe high or maximum and when the sensor is installed for low level keep the DIP switch no.4 turn on, failsafe low or minimum.
You can easily replace the electronics as shown.
In case of any further support please contact our sales and support team.

Connection Terminals

+ of DC or Live of AC Supply input
- of DC or Neutral of AC Supply input Supply:
15 to 80VDC or 15 to 260VAC 50/60Hz
Earth terminal for safety
Normally connected terminal of contact 1
Common terminal of contact 1
Normally open terminal of contact 1
Normally connected terminal of contact 2
Common terminal of contact 2
Normally open terminal of contact 2