China Lct-840 Capacitive Level Transmitter

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: 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. It can be fixed by thread or flange and is easy to operate.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.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. Without any mechanical moving parts, mature and stable circuit structure and high quality components will make the sensor continuous use.
Technical performance parameters:Power5VDC /12VDC /15 ~28V DC(5VDC powered only RS485 digital output)Displacement range 100~1500mm(be customized)Nonlinear error ±1%F.SRepeat error <±0.02%F.STemperature Coefficient 0.025%/ºCOperating temperature-40ºC~+85ºCstorage temperature -40ºC~+100ºCFixed work stress 0.63MPaRod material Aluminum alloy/stainless steelOutput signal 0~5VDC or 0~10VDC(Three-wires system) 4~20mA(Three-wires system)or RS-485 outputload capacity Voltage signal output minimum load >5KΩ, LCT-840 Capacitive level transmitter
current signal maximum output load resistance 600ΩInstallation interfaceFlange or threaded connection Way outStraight out cable Shell IP grade IP65Power5VDC /12VDC /15 ~28V DC(5VDC powered only RS485 digital output)Displacement range 100~1500mm(be customized)Nonlinear error ±1%F.SRepeat error <±0.02%F.STemperature Coefficient 0.025%/ºCOperating temperature-40ºC~+85ºCstorage temperature -40ºC~+100ºCFixed work stress 0.63MPaRod material Aluminum alloy/stainless steelOutput signal0~5VDC or 0~10VDC(Three-wire system) 4~20mA(Three-wire system)or RS-485 outputload capacity Voltage signal output minimum load >5KΩ,
current signal maximum output load resistance 600ΩInstallation interfaceFlange or threaded connection Way outStraight out cable 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 colorLabelDefinitionNotered24VdcPower supply blackGNDNegative power supply blueARS485 T/R+ whiteBRS485 T/R blueV outAnalog voltage output0~10V / 0~5VblueI outAnalog current output4~20mA

RS-485Output format data format and baud rate
M:ModbusOutput (factory default baud rate 19200)
RTU format0:2400 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