Small explosion-proof thermal conductivity type flow switch

The unique conical probe design can effectively prevent entanglement in the medium. Fully waterproof shell design, unique waterproof adjustment knob, no need to remove the sealing screw, you can adjust arbitrarily, convenient and reliable.

Applicable pipe diameter range is large, set point can be adjusted at will, anti-corrosion type is optional, withstand voltage up to 100Bar, indicator light directly displays flow, optional relay, analog output or analog switch integrated output.

The NK-600E series thermal conductivity type flow switch can monitor the liquid flow in the pipeline in real time. There are no moving parts, maintenance-free, and easy to install. One model is used for a variety of pipe diameter requirements, providing switch output, and adopts 6 LEDs display the fluid flow rate status in real time, and realize the following monitoring functions: medium flow, reduce/increase the flow rate; medium presence/absence; medium flow/static; monitor the fluid flow rate in the pipeline, cut-off monitoring or prevent the pump from idling.

It is widely used in petrochemical, electric power, metallurgy, steel mills, papermaking, food processing, water treatment, battery factories and other industries. Gas-liquid dual-purpose type, can be used in pneumatic and hydraulic systems, can be used for circulating water, cutting fluid and lubricating oil cut-off monitoring, and pump idling protection.

Setting range: 1…150cm/s (water), 3…300cm/s (oil), 20…2000 (air)

Signal output: PNP, NPN, relay, 1) normally open + normally closed (SPDT)

Power supply: 24V±20%DC2)

Power on: Maximum 400mA (PNP or NPN type) Maximum 1A48VAC/DC (relay type)

No-load current: Max 80mA

Flow indicator: LED row (6)

Setting method: potentiometer setting

Pressure range: 100bar

Medium temperature change: ≤4℃/s

Response time: 1…13s, typical value 2s

Initialization time: about 8s

Electrical protection: reverse phase, short circuit, overload protection

Explosion-proof grade: ExdII CT6

Protection level: IP67

Medium temperature: -20…100℃

Ambient temperature: -20…80℃

Storage temperature: -20…100℃

Wiring mode: M12 connector

Material quality: Probe: Stainless steel Case: Stainless steel

Repeatability: 　±2%

Small explosion-proof thermal conductivity type flow switch with indicator light FR12B-600EX

The EX-600 series thermal conductivity flow switch is designed based on the principle of heat exchange. The probe has a built-in heating module and a thermal module. The heat conduction of the flow switch is closely related to the flow rate of the medium. During measurement, the heating module emits heat. If there is no medium flowing in the pipeline, the heat received by the thermal module is a fixed value. When the medium is flowing, the heat received by the thermal module will change with the flow rate of the medium. The thermal module converts the temperature difference signal into an electrical signal, and then the processor converts it into a corresponding standard analog signal or contact Signal output, the flow switch uses this signal to display and control the flow rate of the medium.

Small explosion-proof thermal conductivity type flow switch with indicator light FR12B-600EX

After receiving the product, please check whether the packaging and appearance are intact, and check whether the model and specifications are consistent with the product you purchased.

Be sure to check whether the power supply voltage is correct and the wiring is correct before powering on. The company does not guarantee the product burned out or the load product damaged due to continuous errors.

Do not install live!

During the installation process, use a hexagonal wrench and do not forcefully install or disassemble. Otherwise it is easy to damage the product, especially in accordance with the thread and shell.

If there is an abnormal phenomenon, unless you have product adjustment equipment and skills, please contact our after-sales technicians for the product.