Product Details
OLED NPN PNP Smart Electronic Level Switch 0-20mA RS485 Output
1. Liquid and oil media level measurement
2. Switching points settable
3. Switching can be set normally open / normally closed
4. Analog output span settable
5. High light switch indicating
6. OLED self-luminous display
7. Display turnable 180°
8. Housing with electrical connection against process connection
rotatable 330°
9. Media density settable
Smart Electronic Level Switch with OLED Display |
Model No. | SLS |
Measuring range | 0…1mH2O to 100mH2O |
Accuracy | ≤0.5%FS |
Supply power | 12...30VDC |
Temperature error within rated temp range | ±0.02%FS/℃ (Zero/full span) |
Long-term stability | ±0.3%FS/year |
Analog output accuracy | ±0.2%FS |
Output configurations | switching+voltage+ communication: 2×PNP + 0V~5VDC/10VDC + MODBUS |
switching+current+ communication: 2×PNP + 0mA/4mA~20Madc + MODBUS |
Switching current | 1.0A(Max.) |
Switching type | normally open , normally closed |
Switching respond time | <10ms |
Switching delay | 0.00s~1000.0s |
Switching motion mode | delay or windows mode |
Analog signal output and maximum ohmic load RL | Current output: 0/4…20mA,20…4/0mA RL≤0.5kΩ |
Voltage output: 0…5/10V,5/10…0V RL>10kΩ |
Screen display | OLED |
Switching indicator | 2X red LED |
Displaying pressure units | psi,bar,mbar,Pa,kPa,MPa |
Working temperature | -30℃~80℃ |
Media temperature | -30℃~80℃ |
Storage temperature | -40℃~80℃ |
Electromagnetism compatible | GB/T 17626.2/3/4-2006 |
Shock resistance | ≤10g/10Hz...500Hz(IEC 60068-2-6-2007) |
Vibration resistance | ≤50g/11ms(IEC 60068-2-27-2008) |
IP rating | IP65 |
FAQ
Q: Are you trading company or manufacturer ?
A: We are a manufacturer since the year 2004, committed to
producing high accuracy, long-term stability, cost-efficient
pressure/level/temperature measuring instruments.
Q: What's your quality control system?
A: Our factory is cerrified under ISO 9001-2015. All products are
completed with temperature compensation and 48 hours aging test
before shipment.
Q: What is the warranty of your products?
A: 12 month from shipment date, for non-man-made damages.
Q: Shipping and Delivery
A: Small orders are delivered with DHL, Fedex, TNT, UPS , with
delivery time in 4 - 5 business days.
Large orders are recommended to ship by sea.
Company Profile
Founded in 2004, HEFEI WNK SMART TECHNOLOGY CO., LTD is a hi-tech
company specializing in different kinds of technologically-advanced
and good quality sensor, transmitter and automation instrument. We
devote to developing, manufacturing and selling of automation
control system, providing our customers comprehensive fieldbus
technical solutions and factory informatization construction.

Our main products include iEOS industrial cloud data base
developing plate form; industrial Internet of Things; WNK-WMS
industrial wireless measurement system; onsite measurement
instruments like temperature, pressure, flow, level sensor and
transmitter etc, widely applied in Petrochemical, Chemical, Power,
Steel and Cement.

WNK is the third company in China developed PROFIBUS transmitters.
WNK series PROFIBUS transmitter is the fourth in China certificated
by international PROFIBUS organization, and Chinese first that
completely having proprietary intellectual property rights. WNK
PROFIBUS-PA temperature transmitters filled Chinese blank
technology in the field.

With strict, scientific management system, WNK has been
certificated to conform to standard GB/T 19001-2008 / ISO 9001:2008
by CHINA CLASSIFICATION SOCIETY CERTIFICATION COMPANY. WNK commits
to developing of new products and technical innovation. With
continuously effort in advanced technology of automation control
system, WNK has been undertaking some innovation projects of MST
(Ministry of Science and Technology), and has been honored as
promising enterprise of “Giant of Technology ”in Hefei Hi-tech
Industry Development Zone.

As Chinese first and unique qualified production enterprise of
0.075% measurement in Anhui, WNK brand was awarded Anhui Famous
Brand.
