ZNC-DF1 Digital Flow Switch
The ZNC-DF1 Digital Flow Switch is a compact thermal flow monitoring device designed for simultaneous flow velocity and medium temperature monitoring.
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Thermal Flow Switch
ZNC-DF1 Digital Flow Switch
MODEL: ZNC-DF1
Flow Velocity Range: 0.00–2.00 m/s (water)
Temperature Range: 0–100 °C
Output: PNP/NPN + 4–20 mA
Power Supply: 9–36 VDC
Pressure Rating: 100 bar
Protection Rating: IP65
Description
Overview
The ZNC-DF1 Digital Flow Switch is a compact thermal flow monitoring device for measuring flow velocity and medium temperature. It features a 1.47" LCD display and supports configurable PNP/NPN switching and 4–20 mA analog outputs. With no mechanical moving parts, it offers low pressure loss and reduced maintenance.
Features
Flow velocity and temperature monitoring
1.47" LCD with LED status indication
PNP/NPN switching and 4–20 mA output
No mechanical moving parts
Pressure rating up to 100 bar
9–36 VDC power supply
G1/2 male or female connection
IP65 protection
Applications
Suitable for flow monitoring in:
Water systems
Hydraulic systems
Oil systems
Air and gas applications
Ventilation ducts
Industrial equipment and automation systems
OEM and Customization
The ZNC-DF1 can be configured according to different application requirements, including:
Different probe lengths
G1/2 male or female connection
M12 connector or direct cable
Different PNP/NPN and 4–20 mA output combinations
Selection Notes
Before ordering, please confirm:
Medium
Pipe size
Required probe length
Process connection
Output type
Operating pressure and temperature
For proper installation, the insertion depth should be selected according to the pipe diameter and actual application conditions.
Technical Specifications
| Measurement Principle | Thermal / heat-transfer principle (PTC thermistor) | Supply Voltage | 9–36 VDC |
|---|---|---|---|
| Flow Velocity Range | 0.00–2.00 m/s (water) | Operating Current | ≤ 100 mA |
| Temperature Range | 0.0–100.0 °C | Cable / Connector | M12 connector / direct cable |
| Flow Accuracy | ≤ ±2.5% F.S. | Circuit Protection | Reverse polarity, overvoltage, short circuit |
| Temperature Accuracy | ≤ ±1.0% F.S. | Display | 1.47" LCD |
| Temperature Gradient | ≤ 4 °C/s | Setting Method | Push buttons |
| Startup Time | ≤ 15 s | Pressure Rating | 100 bar |
| Process Connection | G1/2 thread, male or female | Protection Rating | IP65 |
| Medium Temperature | 0–100 °C | Ambient Temperature | −20–80 °C |
| Housing / Wetted Material | SS304 / SS304 | Panel / Button Material | PC / silicone rubber |
| Output Configuration | 2A + 1S or 2S + 1A | Contact Logic | Normally Open (NO) / Normally Closed (NC), configurable |
| Contact Rating | 60 V, 1 A | Switch Delay | ≤ 99 s, configurable |
WhatsApp
Email
+8617320288925