WNK268 Micro Differential Pressure Transmitter
WNK-268 is composed of stainless steel membrane and fixed electrode, which form a variable capacitance. Capacitance values change along with pressure change. Its unique detection circuit turns change of capacitance to linear direct current signal. Elastic membrane can bear overpressure of 70KPa (both positive and negative), and there will be no damage. The transmitter has been done temperature compensation so as to have developed temperature performance and long-term stability.
WNK-268 can be used for measuring differential pressure and gauge pressure (static state), and translates signal to proportional current signal, outputs 4~20mA current signal. Excitation voltage is 24VDC. WNK268 conforms to intrinsic safety requirement, explosion proof level is ia II CT4, which be applied to environment ith explosion-proof requirement. The minimum pressure range of WNK-268 is 0~100Pa, maximum pressure range is 0~100KPa. Accuracy under room temperature is
±1%FS, temperature compensation range is +5~+65ºC. Through temperature compensation circuit, the temperature influence can be lower than ±0.06%FS/ºC.
With excellent cost performance, WNK-268 has been widely applied to nature gas pipe pressure monitoring, wind pressure monitoring in power plant and etc.
Application
* Environmental pollution control
* Cleaning project
* Oven pressurization and ventilation control
* Nature gas and coal gas system monitoring
* Underground ventilation monitoring
* Medical instrument and equipment
Advantages
* 6 measuring ranges for on-site setting
* Variable capacitance sensing technology
* Stainless steel argon-arc welding sensitive elements
*Conforming to intrinsically safe explosion-proof ia II CT4(specific 268EX )
* UL94V-0 flame retardant rating
* Standard accuracy is ±1%FS
*Accuracy up to ±0.4%FS,±0.25%FS(special choice)
*Minimum measuring range is 0~100Pa
Technical Parameters:
Dimensions
Our Company
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
If you have another question, pls feel free to contact us as below
Audited Supplier 
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