• Compact Size.
• Calibration-less operation.
• Universal power supply on same terminals (15 to 80VDC or 15 to 260VAC).
• Inbuilt settable switching delay 5 sec.
• Tropicalized sealed electronics module & easy to maintenance.
• Customized process connection threaded / flanged / hygienic & dairy fittings etc.
• Various output options like transistor PNP/NPN , NAMUR, 8/16mA current output. Etc.

• CE Certification.
• IP-68/ 66.
• Exd Suitable for gas group IIC, T6 as per IEC 60079-1:2007 & IEC 60529:2001.
• Ex ia suitable for gas group IIC T6, as per, IS/IEC 60079-11:2006.
• Vibration test comply as per IEC standard 60068-Part 2-6.
• Functionality and environmental test of all instruments RFI-EMC, voltage transient and electrical functionality test as per IEC 61000.

Trumen vibrating fork point level switch model LFV is used in different applications like -

• Trumen vibrating fork is used in different applications like, Water, oil, milk, chemicals, solvents and liquids having viscosity up-to 10,000Cp.
• Suitable for hazardous liquids & chemicals.
• Process temperature maximum 200° C / 250° C (available on requirement).
• Operating pressure 20 bar maximum.

Device operation and settings:
Trumen LFV is very easy to operate

1. Open the cover of Trumen LFV 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.
2. Connect the power supply either 15 to 80VDC or 15 to 260VAC on terminal 1 & 2 and plant earth on terminal number 3. Now switch on the power.
3. Trumen LFV starts vibrating in air. Power LED is on and status level is in OFF condition.
4. Now fill the liquid up-to the fork tines level.
5. You can see the status LED of LFV is on means liquid reaches to the desired level.
6. Now empty the liquid, you can see the status LED is OFF means material goes below the desired level.
7. Relay status also change from NC to NO.
8. There are 4 DIP switches provided on connection panel. Via DIP switch no.1 we can set the sensitivity that means if the density of liquid is low density fluids we need to on switch no.1 in this conditon LFV will sense the liquid. Keep it turned off for normal density fluids.
9. Switch no.2 is to set dry delay means off delay. ON the DIP switch no.2 and empty the material. LFV will wait for 5 sec once the material goes below the sensor and after 5 sec it generates switching. During the delay cycle sensor ignore the turbulence.
10. Switch no.3 is to set wet delay means on delay. ON the DIP switch no.3 and fill the material. LFV will wait for 5 sec once the material touches the sensor and after 5 sec it generates switching. During the delay cycle sensor ignore the turbulence.
11. Switch no.4 is to set failsafe means the instrument should be in alarm condition if the sensor faces power failure. When the sensor is installed for high level keep the DIP switch no.4 is turned off i.e failsafe high or maximum and when the sensor is installed for low level keep the DIP switch no.4 turn on i.e. failsafe low or minimum.
12. You can easily replace the electronics as shown
13. In case of any further technical support please contact our sales and support team.