Prod Model:	QST-201
Range:	0~0.6 Mh2o....0~200 Mh2o
Accuracy:	0.1% Fs, 0.25% Fs (Standard)
Body Material:	Stainless Steel
Temperature Compensation:	-20°c~75°c

Product Description

IP68 1-5V 4-20mA Submersible Water Level Sensor

QST-201 series liquid level transmitters are consisting of well-sealed immerging oil-filled liquid level transducers and special circuit for manometers. Have characteristics of high precision, good stability, long life and easy to fix. Adopt special sealed configuration, so with good capability of anti-leakage. According the relation between pressure, density and liquid level, the liquid level transducers measure the liquid pressure which in direct ratio with depth of liquid, then via amplificatory circuit, the measured pressure is transferred to standard 4~20mA current signal(or standard voltage signal).


Feature:
Range:0~0.6 mH2O....0~200 mH2O
Sealed structure: IP68.
Accuracy: 0.1% FS, 0.25% FS (standard)
There is two kinds of connector to be chosen: intracavity or flush membrane type Integrated construction, without external adjustment.

Product Sizes:



Technical Specifications
 

Measuring media	media which are compatible to 316 stainless steel
Measuring range	mH2O	0~0.6,0~1,0~2,0~5,0~10,0~20,0~50,0~100,0~200
Overload pressure	%FS	150
Signal output	transmitter, mA (2 wires)	4~20
	transmitter, Vdc (3 wires)	0~5
Power supply	Vdc	12~36(Model 24)
Combined accuracy	%FS	±0.25,± 0.5
Long-term stability	%FS/year	<±0.5
Response time	ms	<2
Storage temp.	ºC	-40~+100
Operation temp.	ºC	0~+80
Compensated temp.	ºC	0~+50
Temp. coefficient of ZERO	%FS/10ºC	0.2
Temp. coefficient of SPAN	%FS/10ºC	0.5
Insulation resistance	M Ω	≥500 @ 100 Vdc
Load resistance	current output, Ohm	250~1100
	voltage output, Ohm	>5000
Electrical connection	M20x1.5
Environmental protection	IP rating	IP 68 (for probe and cable)
		IP 65 (for housing)
Material	Diaphragm	316 SS
	housing for electronics	cast aluminium

Cable Coonections:

Delivery
5~10 days after order confirmed

FAQ
Q: What's your quality control system?
A: We are an ISO 9001-2015 certified manufacturer, we have strict quality control system. Besides clibartiaon, each set product we also do temperature compensation and aging test before shipment, so the quality is guaranteed.
 
Q: What is the warranty of your products?                                                      
A: 12 month from shipment date, for non-man-made damages.  
 
Q: Can we use our logo on the products? Do you provide customized products?                                       
Yes.we can use your logo, we can provide customized products per requirement. OEM/ODM is welcome
 
Q: What is yor MOQ?
A: We have no MOQ limits, small quantity order is acceptable.
 
Q: What's the transport?                                                              
A: Express such as DHL, Fedex, TNT, UPS for freight prepaid, also can use your own couier account to do the freight collect. For more goods we can arrange by air or by Sea.