
SI-210B Electronic Flow Switch is a new type of thermal flow switch. Integrated temperature measurement function, can display temperature value in real time. OLED displays flow trend and switch status. Supports temperature alarm and remote measurement.
Features
- New digital design.
- Replace the traditional thermal flow switch. Integrated temperature integration function.
- Save installation space.
- OLED liquid crystal visual display window.
- Gas-liquid dual-purpose type;
- Can be used for flow interruption detection of pneumatic and hydraulic systems, circulating water, cutting fluid and lubricating oil, as well as idling protection of pumps.
SI-210B Electronic Flow Switch Technical Parameters
Setting range | Water—1…200cm/s, Oil—3…300cm/s, Air—20…2000cm/s; Factory calibration or on-site customization is required. |
Measurement medium | Water, oil, gas and other media compatible with stainless steel |
Repeatability | 1%@<0.6m/s; 3%@<1.5m/s; 10%@>1.5m/s |
Switch output | NO+NC |
Output type | PNP/NPN/Relay optional/NO/NC can be set |
Load capacity | 500mA at 24VDC (NPN and PNP type), 60W (Relay type) |
Display design | OLED (0.96 inch) |
Flow indication | Digital display |
Setting method | Key setting |
Pressure range | 100bar (300bar optional) |
Medium temperature change | 4℃/s |
Response time | 1…13s, typical value 2s |
Initialization time | About 8s |
Power supply | 24V±20%DC |
Electrical protection | Reverse phase, short circuit, overload protection |
Protection level | IP67 |
Medium temperature | -20….85℃ |
Ambient temperature | -40….85℃ |
Storage temperature | -20…100°C |
Wiring method | M12 connector/directly attached 2m cable optional |
Material | Probe 304 stainless steel, housing 304 stainless steel |
Weight | About 0.4kg |

Wiring

Panel Introduction

Installation Instructions

More Featured Flow Switches
Electronic Flow Switch has been fully utilized in the fields of industrial furnaces, welding equipment, laser equipment, microwave equipment, glass machinery, lubrication machinery, printing machinery, machine tools, and large transformers with its many product advantages.
Sino-Inst supplies various types of Electronic Flow Switches, including thermal conductivity, mechanical, temperature and flow integrated, etc. If you need to purchase Electronic Flow Switch, or have related technical questions, please feel free to contact our engineers!