FLOW SENSOR WIRE (GRAY PIN)
FLOW SENSOR WIRE (GRAY PIN) is a flow sensor’s gray pin depends on the manufacturer and model of the sensor, it acts as a control of output
Description
Specifications:
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SPECIFICATION FOR AUTO VALVE
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| Product Code | 2660 |
| BRAND | RUNXIN |
| USED IN | INDUSTRIAL RO SYSTEM |
| TYPE | FLOW SENSOR WIRE |
| Country of Origin | CHINA |
The function of a flow sensor’s gray pin depends entirely on the specific manufacturer and model of the sensor, as there is no universal standard color code for sensor wiring. In many cases, it acts as a signal or control output wire.
Common Functions
- Signal/Output Wire: In industrial sensors, gray wires are often used for a control output or an external input, depending on how the system is configured.
- Signal Ground or Signal Return: In some multi-wire configurations (like a 4-wire Mass Air Flow sensor), one ground might be for power, and another (potentially gray) might be a dedicated ground for the signal circuit to ensure a clean signal.
- Reference Voltage: In some wind sensors, a pin (not necessarily gray, but the color coding is product specific) may provide a reference voltage for calibrated output.
- Other Functions: Depending on the specific sensor, a gray wire could have a completely different purpose (e.g., power supply, temperature output, etc.).
Important Considerations
- Consult the Manufacturer’s Manual: Always refer to the specific datasheet or operation manual for your flow sensor model to determine the exact function of the gray wire.
- Standard Color Codes: While there are no universal standards, industrial sensors commonly use:
- Brown for positive power supply (+Vcc).
- Blue for ground (GND).
- Black for the main signal output.
Connecting a sensor incorrectly can damage the component, so correct wiring based on the official documentation is crucial.
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