LM02X Series Submersible Level Transmitters (Special for Sewage and Sludge)

Product Features

◆There are many options for signals;

◆Anti-interference，Surge protection;

◆Special protection, dedicated to sewage and sludge;

◆Lightning protection, compliant with IEC61000-4-5/Level-4 standard.

Product Description

The LM02X series submersible level transmitters (special for sewage and sludge) are based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid. The product adopts the piezoresistive effect of ceramic sensitive elements to convert static pressure into electrical signals. Combined with a dedicated digital circuit, after signal processing such as signal amplification, linear compensation, anti-interference, and surge protection, it is an integrated product that outputs industrial standard signals. The probe is designed with different pressure inlet methods to protect the diaphragm according to different working conditions, making it suitable for application in sewage and sludge.

Product Application

◆Waterworks, chemical plants;

◆Sewage treatment;

◆Deep wells, dams;

◆Flood control, irrigation.

Technical Parameters

Measurement Range	0…1…200mH2O
Pressure Type	Gage pressure(G); Sealed gauge pressure（S）; Absolute pressure（A）
Output Signal	4…20mA;0.5…4.5VDC;0…10VDC;IIC;RS485;SDI-12
Input Voltage	8…30V DC;5…8VDC;3.3VDC
Accuracy Class	0.1%FS	0.2%FS	0.5%FS
Zero Drift	0.01%FS/℃	0.02%FS/℃	0.05%FS/℃
Sensitivity Drift	0.01%FS/℃	0.02%FS/℃	0.05%FS/℃
Compensation Temperature	0…50℃; -10…70℃
Operating Temperature	-20～+85℃
Storage Temperature	-40～+125℃
Long-Term Stability	≤0.2±%FS/Year;≤0.5±%FS/Year
Response Time	＜1ms
Overload Capacity	200%
Load Resistance	R=(U-12.5)/0.02-R_D 其中：U为电源电压，R_D电源内阻
Measuring Medium	Corrosive media compatible with 316L
Diaphragm Material	316L;Tantalum;C-276;TC4
Shell material	304SS;316L;TC4
Electrical connection	Direct outlet
Process connection	//
Protection Level	IP68
Explosion-Proof Grade	Ex ia Ⅱ CT6 (Optional)

Product Type

Code	Appearance	04
02
03

Selection Guide

LM02-	Submersible Level Transmitter (Special for Sewage and Sludge)
	Code	Appearance
	01	Ceramic piezoresistive sewage type appearance
	02	Porous sediment appearance
	…	03: Sludge flange appearance; 04: Permeable stone appearance; 0T: Special customization
		Code	Output signal
		S1	4…20mA; S2:0.5…4.5VDC; S3:0…5VDC ;
		…	S4:0…10VDC; S5:IIC; S6:RS485; ST:Special customization
			Code	Power supply range
			U1	8…30VDC
			…	U2:3.1…8VDC;U3:3.3VDC
				Code	Housing material
				30	304SS;31:316L;32:TC4;
				…	33://;34://;35:C276
					Code	Thread specification
					C1	M20*1.5
					C2	G1/2
					…	C3:G1/4；C4:1/2NPT……Cn C8 G1/8
						Cable length	Cable material
						Xxxx	PU; PE; PV; PTFE
							Measurement Range	Unit
LM02-	02	S1	U1	30	C1	X010PU	-[0…10]	mH₂O

Pressure Transmitter