Holykell factory SP400 RS485 flexible magnetostrictive level sensor with Automatic tank level gauge

FOB Reference Price:Get Latest Price
$500.00 - $900.00 / Pieces | 1 Piece/Pieces (Min. Order)
Report Suspicious Activity
Quick Details
Place of Origin:
Hunan, China (Mainland)
Brand Name:
Model Number:
Min Level range:
0.5M for level measuring with tank gauge
Max level range:
500 Meters for level magnetic sensor
Explosion proof:
Yes used for oil and water measurement
Temperature Compensation:
Working Temp:
-30℃ to 70℃
Signal Output:
4-20 mA ,0~5V output
Power supply:
12~36V DC
316 stainless steel for magnetostrictive probe
Certificate approving:
Exia IICT6 and CE Certificate
One year
Supply Ability
Supply Ability:
5000 Piece/Pieces per Month magnetostrictive level sensor flexible
Packaging & Delivery
Packaging Details
Standard Wood Boxes for SP400 RS485 magnetostrictive level sensor flexible
Video Description

                      SP400 RS485 Magnetostrictive Level Sensor Flexible



Product Description


HOLYKELL SP series magnetostrictive probe magnetic sensor  take advantages of Wiedeman effect, Viuary effect and ultrasonic effect of intelligence material, convert displacement information to time value which most easily to be measured with high-precision, so achieve high accuracy measuring for liquid level. Because of few mechanical parts, magnetostrictive probe have distinct features as high reliability ,easy-to-install and wide application, etc.




Magnetostrictive probe is mainly composed of electric house ,temperature sensors,protection steel pipe,magnetostrictive waveguide wire and floaters with magnet inside. Install electric house inside the riser pipe of oil tank, insert protection steel pipe into liquid in underground tank, floaters floats on the liquid surface, and slides up and down on pipe according to the changes of liquid level. Processing measured data of product level ,water level and average temperature of five-points by filtering algorithm, then transmit these data to smart console by digital communication port.


Control board of probe is composed of CPU ,instrument amplifier circuit and communication circuit. CPU adopts high-frequency processor, to ensure the instantaneity and reliability of data sampling. High-accuracy instrument amplifier circuit makes sure the authenticity of sampled data waveform. And digital communication make sure the reliability and anti-jamming when data transmit far away.



Power supply

DC12V, 50mA





Resolution of product level


Resolution of temperature


Resolution of water level


Temperature range


Points of temperature measured


Maximum communication




Intrinsic safety parameter

Power port: Ui = 15V,Ii= 400mA,Pi = 1.2W, Ci = 4.85uF,Li = 0.


Signal port: Ui = 7.14V,Ii= 147mA,Pi = 0.26W, Ci = 0,Li = 0.

Mark of explosion proof


Associated apparatus

HOLYKELL GSB03 safety barrier

Definition of power cable


Medium applicable

Gasoline, kerosene, diesel, light oil, heavy oil ,alcohol mixture,

Communication address

6 digits, please see “Manufacturing Code ” on nameplate of probe


 Tank Gauge

Measurement input

Input signal

Current:0~20mA,0~10mA, 4~20mA, 0~10mA evolution, 4~20mA evolution

Voltage:0~5V,1~5V,0~10V, ±5V, 0~5V evolution, 1~5Vevolution, 0~20 mV,

0~100mV, ±20mV, ±100mV

Resistance thermometer detector:Pt100, Cu50,Cu53, BA1,BA2

linear resistance:0~400Ω

Thermoelectric couple:B, S, K, E, T, J, R, N, F2, Wre3-25 and Wre5-26


Output signal

Analog output:4~20mA(load resistance≤380Ω),0~20mA(load resistance≤380Ω),0~10mA(load resistance≤760Ω),1~5V(load resistance ≥250KΩ),0~5V(load resistance ≥250KΩ)and 0~10V(load resistance ≥500KΩ)

Alarm output:Normally-open output of relay,contact capacity1A/250VAC(Resistive load)

Feed output:DC24V±1,load current≤250mA

Communication output:RS485/RS232 communication interface,baud rate1200~57600bps(settable). The standards are listed as follows:MODBUS   RTU communication protocol,maximum RS-485 communication distance: 1km;maximum RS-232 communication distance:15m;Ethernet communication interface,communication speed10M,(merely applicable to Local Area Network)

Composite parameters

Measurement accuracy


Sampling period


Setting mode

Light-touch key setting; password locking of parameter setting value; permanent saving of setting value outage.

Display mode

7-inch 800*480 dot matrix widescreen, TFT high-brightness color graphic LCD, LED backlight, clear display and wide visual angle.

The screen brightness is adjustable. The display contents consist of Chinese characters, figures, process curves and bar graphics. By pressing the key on the panel, you can complete page turning, historical data search and modification of curve time scale, etc.

Data backup

Support USB and SD card for data backup and transfer, maximum capacity: 8GB, support FAT and FAT32 formats.

Storage capacity

Internal Flash storage capacity: 64M Byte

Time interval of recording

Time interval for selection: 1, 2, 4, 6, 15, 30, 60, 120, 240 ( Unit: second)

Time duration of storage

(Continuous record without power failure)

4days(1-second time interval)—5825 days(240-second time interval)



(! Note: Calculation of channel number: The program will divide the channel into five classes of 4, 8, 16, 32 and 64. When the channel number falls within the range of two classes, the bigger one should be taken. If, for instance, the channel number is 12, the number of 16 should be taken as the channel number.)

Operating environment

Environmental temperature: -10~50℃;relative humidity: 10~90%RH (no condensation); preventing strong corrosive gases.

(! Note: Please state the special instructions when placing an order in case of severe environmental conditions on the site)

Working power

AC85~264V(switch power) ,frequency range:50~60Hz,maximum power consumption:20VA



Details about the tank gauge


Details about SP series





How to place an order

In order to recommend you the most suitable pressure transmitter and make an accurate quotation, please fill in the following form and send it to our sales when you are going to make an inquiry, thanks!




Technical Parameters


Level range(Tank height)



Output signal



Cable length





Your other requirements will be welcome


How do you ensure the quality of products?

We have a complete quality control system, all of our products will be fully pre-inspection by QC departments before shipping to you.



Our Services

1. Customized Product

Holykell Sensor provides OEM Pressure Sensors and Custom-Design services. 

With know-how technique and mass production capability, we are able to provide the specified sensing solution according to customer's application. 

2. Quality Quarantee

We quarantee product quality for 12 months starting from the date of delivery. For any unproper situation, please feel free to let us know.

3. Shipment & packing

Pressure sensors are generally shipped by International Express including UPS, FedEx, DHL and TNT as you required.  By plane or by ship is available, too. Please discuss details with our sales.

All products will be well packed in hard paper box properly and security. Packing list will be enclosed inside the box. Please take care of this when you unpack the package.

4. Contact us

We have an active and experienced sales team to serve you on technical question and business issue.

Just leave us message or click the Online Service for questions and enquiries.

Within 24 working hours, we will come to you at the first time!



Company Information


You benefits from:

Factory Experience 

More than 18 years of experience in Level sensor industry.
large stock : 

within 24 hours delivery for standard specifications.
Supply Ability : 

At least 50000 pcs per Month.
Supply Area : 

All over the world, about 90 countries (Most of them are from North America, Europe, Australia,Asia and Africa

Certificate :  

CE, ROHS, ATEC Audited by TUV Rheinland and ECM


OEM/ODM :  Accept.



Our products are widely applied in the fields of chemical industry, petroleum, pharmacy, electricity, municipal works, environmental protection, food and paper-making.





You May Like
Not exactly what you want? 1 request, multiple quotations Get Quotations Now >>
You May Like