The Selex 4 Liquid Level Sensor is a compact, solid state module, with advanced ferromagnetic technology to provide full galvanic isolation of liquid level sending probes. The Selex 4 uses a low impedance technique which passes no measurable current through the liquid. Detecting free ions in the liquid provides reliable level sensing even in bad conditions such as deposit build up on the probe. When designing the probe, optimal surface area is dependent on the free ion density of media under test.
Selex 4
Specifications:
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Electrical
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| Supply Voltage | "P" - 5Vdc, 4.5Vdc min - 7.5Vdc max "C" - 12Vdc, 11Vdc min - 14Vdc max |
| Maximum output | 75mA current sink into NPN collector |
| Supply current | 2.5mA normal for 12V, 1.5mA normal for 5V, excluding output load |
| Probe current | Essentially zero |
| Operation | NC - active (conducting), probe not in contact with liquid NO - active (conducting), probe in contact with liquid |
| Mechanical | |
| Case dimensions | 1.25" x 0.90" x 0.30" (32 x 21 x 8 mm) |
| Electrical connections | "P" - PCB Mounting - 6 pins 0.02" x 0.01 x 0.18" (0.5 x 0.3 x 4.5 mm) "C" - Chassis Mounting - 6 blades 0.03" x 0.11" x 0.4" (0.8 x 2.8 x 10 mm) |
| Operating temperature | -20°C to 65°C (0°F to 150°F) |
| Order Codes | |
| Codes | SELEX4-5-P - 5V, pcb mounted, through hole pcb pins SELEX4-12-C - 12V, chassis mount, push on blade connections |
Pricing
| SKU | Product title | Price | Add to cart |
|---|---|---|---|
| Selex 4 | Selex 4 - Liquid Level Sensor | $17.95 |
Contact Information:
For information, please contact Barrett Engineering at 707-725-9898.