High Precision Lct-840 Tank Capacitance Level Transmitter

• Customization: Available
• Type: Silicon Piezoresistive Type
• Structure Design: Flange Type
• Model NO.: LCT-840
• Pressure Range: 0.63MPa
• Display Type: Decile Calibration
• Accuracy Grade: 1.0G
• IP Rating: IP65
• Certification: ISO
• Customized: Customized
• Transport Package: Standard Export Package
• Trademark: Yuanben
• Origin: Shanghai
• Production Capacity: 50, 000 PCS/Year

Product Description

LCT-840 Capacitive Level transmitter
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; it 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 ~28V DC(5VDC powered only RS485 digital output)
2. Displacement range     100~1500mm(be customized)
3. Nonlinear error        ±1%F.S   
4. Repeat error           <±0.02%F.S
5. Temperature Coefficient  0.025%/ºC
6. Operating temperature   -40ºC~+85ºC
7. storage temperature     -40ºC~+100ºC
8. Fixed work stress    0.63MPa
9. Rod material       Aluminum alloy/stainless steel
10. Output signal  0~5VDC or 0~10VDC(Three-wires system) 4~20mA(Three-wires system)or RS-485 output
11. load capacity    Voltage signal output minimum load >5KΩ,

LCT-840 Capacitive level transmitter
       current signal maximum output load resistance 600Ω

1. Installation interface   Flange or threaded connection
2.  Way out            Straight out cable
3.  Shell IP grade        IP65

1. Power   5VDC  /12VDC /15 ~28V DC(5VDC powered only RS485 digital output)
2. Displacement range     100~1500mm(be customized)
3. Nonlinear error        ±1%F.S  
4. Repeat error           <±0.02%F.S
5. Temperature Coefficient  0.025%/ºC
6. Operating temperature   -40ºC~+85ºC
7. storage temperature     -40ºC~+100ºC
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

Drawing
     







Note:
B: Sensor effective range (mm)
C:Sensor rod length=Effective range+26(mm)
L:Total length of sensor=Effective range+89(mm)

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	V out	Analog voltage output	0~10V / 0~5V
blue	I out	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

Photos