1:Six LED display 2:Operation in wide flow rates for water and oil,air. 3:waterproof design
Thermal Conductivity Type Flow Switch
Product Description
RTF thermal conductivity type flow switch is based on the principle of heat exchange design, the heat conduction of the flow switch and the measured fluid flow rate are closely related, if no medium is flowing in the pipeline, the heat received by the thermal sensor is a fixed value, but when the fluid medium flow overflow switch when the probe is to heat as measured by the thermal sensor with the changes in the flow rate of the medium varies, then this temperature differential signal is converted into an electrical signal, the built-in A / D processing circuit will set the flow and the instantaneous flow rate, compared to output contact signals. Trends in thermal conductivity flow switch integration for the flow probe and signal processors, six LED indicators provide a flow state switch action value can simply protect the screw potentiometer on the front panel to adjust the switch output form.
Feature
1: 6 LED display alarm and flow state
2: Switch point field adjustable wide range
3: For diameter range
4: Withstand voltage up to 100Bar
5: Fluid barrier, no wear, no maintenance
6: Special anti-fouling coatings of probe, stain-resistant capabilities
Technical Parameters
| Working medium | water:0~5m/s;oil:0~10m/s;gas:0 ~ 50m/s |
| Switching characteristics | Repeatability:± 1% set point range |
| Corresponding time | Typical2s, Maximum15s Temperature gradient: Maximum250K/min Pressure rating:10MPa Corresponding time:≤ 12s |
| Temperature Range | from -25°C to +80 °C |
| Operating voltage | DC24V;AC110V;AC220V |
| Current consumption | ≤ 65mA |
| Connection type | G1/2’’ M20×1.5(or customized according to customer's request) |
| LED indication | 1:The flow rate is lower than the set value, the red light |
| 2:Flow rate equal to or greater than the set value, the yellow light | |
| 3:Flow rate is greater than the set value, four green light according to the flow size varying degrees of light (yellow light at the same time bright) | |
| Output mode | Relay 0.2A/220VAC |
| Shell protection | IP67 protection, 304 stainless steel housing |
Installation
RTF-K type Thermal Flow Switch
