RF Admittance Level Switch

RF Admittance

The RF admittance level switch uses the probe (sensing electrode) and the container wall (ground electrode) as the two plates of a capacitor. Because the dielectric constants of the air and the measured medium between the two plates are different, the capacitance value changes as the level of the medium between the plates changes. When the capacitance value reaches the switch's set value, it outputs a switching signal for response control, enabling high and low level detection and alarms.

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Measured Medium: Solid, Liquid, Powder, Slurry
Dielectric Constant: ε≥1.6
Operating Voltage: 15VAC320VDC, ±15%
Power: <1W
Output: 2-channel switch, DPDT relay output (AC220V/5A, DC 30V/5A)
Delay Time: 0999s adjustable
Sensitivity: 0.3 pF
Operating Pressure: -0.1...64 Bar
Operating Temperature: Sensor: -50°C ... +200°C; Electronic unit: -40°C ... +80°C
Protection Rating: IP67
Electrical Interface: M20*1.5 / 1/2NPT (cable diameter 6~12mm)
Electrical Interface : M20*1.5 / NPT 1/2"
Process Connection: Threads from G3/4, NPT3/4 and flanges from DN50, 2"
Process Seal: Fluoroelastomer seal
Wetted Material: Stainless steel 304+PTFE / Stainless steel 316L+PTFE / Stainless steel 304+FEP / Stainless steel 316L+FEP

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