Introduction; Product Features; Principle - FineTek EE310 Operation Manual

3. Introduction

3.1. Product Features

 Measurements are independent of environment variation (sound waves, dust, capacitance, humidity
and temperature), and is suitable for various industrial applications.
 User-friendly operation and full functionalities with microprocessor control.
 Relay output (5A/240Vac)×4: HI, LO alarm or Pulse, Reset, fault alarm, operation indication or Lock
alarm output can be programmed.
 LCM Graphic 128x64 Dots
 Analog output: 0-20mA / 4-20mA.
 Pulse output: Transistor output (NPN/PNP).
 Cable Break Alarm: System will detect automatically when cable is broken during operation.
 Sensing Weight Buried Alarm: System will detect automatically when the sensing weight is buried in the
measured material.
 Four Detection Modes:
I. Auto operation: in period, system will be waked up in certain time period depend on the pre-setting.
II. Manual operation: User can operate system at front panel to set procedure any time.
III. Intelligent (smart) operation: The EE310 will vary its detection frequency to shorten the measuring
time while the detected material level is more far away from EE310. This function is especially useful
while customer's storage or reservoir is subjected fast change in level (Ex: Pour in / Pour out), this
smart function will decrease the possibility of weight head be buried or malfunction.
IV. External trigger operation: Support external command to start on the system.
 Auto Return Setup: User can set the sensing level threshold and force the system return at the preset
threshold value. This function is especially of service while the measured material in storage or
reservoir is lower than the threshold level, which will be in prevention away of damaging facility.
 Material Fill-Up Protection: While user's facility is on pour into material status, the system will be trigged
(By Fill-Up Protection Input) hold and return to its original to reduce the malfunction or weight head
buried possibility.
 Maximum measuring range of 30m.
 RS485 communication protocol available.
 Versatile sensing weight structure satisfy customer's requirement.
 Froze Protect: Within the EEX, it supports a heat element to warm up the electric board within shell
housing to guarantee it will work normally even under severe cold environment.

3.2. Principle

EE310 series Electro-Mechanical Level Measuring System consists of a sensing weight, a cable wire, a
pulley set with Hall sensor to count level distance, and a calculating electric board. While measuring, the
drooping cable wire will drive the pulley set in rotation, where the Hall sensor will count the number of pulley
rotation as an index. The electric board will calculate the pulse command sent to motor, and the actual
drooping length can be transferred by pulse command and the rotation number of pulley. All data displayed
at the front panel, can be transferred to output.
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