YPL displacement type Level Transmitter is designed to sense Liquid level, Interface and Specific gravity. The output of the Instrument is proportional and is designed to measure and transmit electrical signal proportional to changes in Liquid level or Specific Gravity.

Principal Of Operation

The YPL series measures changes in Liquid Level, Specific Gravity or Interface Level and transmits a current output signal proportional to the change in the process parameter. The change in the process parameter causes a change in the displacer position, which is transferred to the Torque Tube producing a Rotary motion. This rotary motion is transferred through bellow to lever assembly that is supported by flexure strips.
Magnets attached to the lever assembly move past a hall effect position sensor that converts the magnetic field signal to an electrical 4- 20mAsignal.

Technical Specification

 

Displacer Length: Minimum 100mm to 6 meter
Input Signal: Liquid level or liquid to interface level: from 0 to 100%
of Displacer length min. differential
Specific Gravity : 0.3 to 1.2 (with standard displacer) & 0.2(with special displacer)
Output Signal: Two wire 4-20mA dc
Output Action: Direct– increasing input increases output or
Reverse– increasing input decreases output
Display: LCD display meter
Reference Accuracy
(specific gravity 1.0):
±0.1% of full scale(better on request)
Linearity Adjustment: 8 point through software
Damping: 32 sec.
Calibration Facility: By three method i.e. hand held communicator(HHC),
Push button & PC
Power Supply: a) 35V DC for explosion proof
b) 30V DC for intrinsically safe
Power Supply Effect: Negligible between 13 and 35V DC
Load Resistance: 600 Ohm at 24V DC
Span Adjustability: 30 to 100% of displacer length for level application using
standard volume displacer
Zero Adjustability: 15% of sensing element range
Diagnostic of Mech.& elect.: provided
Cage Sensor: Cage can be furnished in a variety of end connection style to
facilitate mounting on vessels
Oper. Amb.Temp: 65°C , Elect. Connection : ½” NPT

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