LCT-840 Capacitive Level transmitter

Featured Product from Shanghai Yuanben Magnetoelectric Tech. Co., Ltd.

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Overview

The principle of the LCT-840 capacitive liquid level transmitter is to use the capacitance formed by filling the liquid medium between the positive and negative probes to change the capacitance (the amount of change in the liquid level) into a standard electrical signal output. The core components of the product are highly integrated, dedicated capacitance measuring chips with precise temperature compensation and linear correction for high precision, high stability, safety, reliability and continuous measurement.

 

Features:

1. The fuel consumption value is obtained directly by measuring the oil volume of the oil drum, and does not have any effect or influence on the oil pipe.

2. It can be fixed by thread or flange and is easy to operate.

3. The sensor can be customized according to different oil drum sizes of the customer; its adds temperature compensation function to automatically correct the error caused by the volume change of the oil drum caused by temperature change.

4. The capacitive sensor is directly installed in the oil drain hole of the oil drum, and the NPT taper pipe thread is used to prevent the oil leakage problem.

5. Without any mechanical moving parts, mature and stable circuit structure and high quality components will make the sensor continuous use.

 

 

Technical performance parameters:

1. Power   5VDC, 12VDC, 15 ~28VDC, 5VDC powered only RS485 digital output 

2. Displacement range      100~1500mm  

3. Nonlinear error         ±0.1%F.S   

4. Repeat error            <±0.02%F.S

5. Temperature Coefficient  0.025%/°C

6. Operating temperature   -40°C ~ +85°C

7. storage temperature     -40°C ~+100°C

8. Fixed work stress        0.63MPa

9. Rod material           Aluminum alloy/stainless steel

10. Output signal      0~5VDC or 0~10VDC Three-wire system 

 4~20mA Three-wire system or RS-485 output

11. load capacity    Voltage signal output minimum load >5KΩ,

current signal maximum output load resistance 600Ω

12. Installation interface   Flange or threaded connection

13. Way out             Straight out cable

14. Shell IP grade         IP65

 

Note:

B: Sensor effective range  mm 

C:Sensor rod length=Effective range+26(mm)

L:Total length of sensor=Effective range+89(mm)

The testing Length of senson can be selectable,As,B,C,L,custom.ged

 

 

 

Wiring method and port description

 

Wire color

Label

definition

Note

red

24Vdc

Power supply

 

black

GND

Negative power supply

 

blue

A

RS485  T/R+

 

white

B

RS485  T/R

 

blue   

Vout

Analog voltage output

0~10V   0~5V

blue

Iout

Analog current output

4~20mA

 

RS-485      Output format data format and baud rate

M:Modbus   Output (factory default baud rate 19200)

RTU format   0,2400  1,4800  2,9600  3,19200  4,38400  5,76800   6,115200

ASCII        A,2400  B,4800  C,9600  D,19200  E,38400  F,76800  G,115200