The IFM SI6700 is a hygienic thermal flow monitor designed for monitoring liquid and gas flow in clean process environments. It provides a liquid setting range of 3…300 cm/s and a gas setting range of 200…3000 cm/s. The sensor provides one configurable PNP switching output with normally open or normally closed operation. Its G1 Aseptoflex Vario connection and stainless-steel wetted construction support hygienic installations. The SI6700 is rated for 30 bar pressure and medium temperatures up to 95 °C, with SIP capability up to 140 °C.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The SI6700 is designed for hygienic systems where reliable flow monitoring is required. Its thermal sensing principle detects both liquid and gaseous flow. The 38 mm probe provides the sensing element within the process. Flow switching can be adjusted through the integrated pushbutton. The 10-LED display provides clear visual feedback.
The G1 Aseptoflex Vario process connection provides a hygienic interface for compatible process adapters. Stainless-steel wetted materials support demanding clean-process applications. The sensor also features gold-plated electrical contacts. This construction is particularly suitable for food and beverage processing environments. The compact design simplifies installation within process piping.
The SI6700 supports medium temperatures from -25…95 °C. During SIP processing, the permitted medium temperature extends to 140 °C. Pressure resistance is rated at 30 bar. IP67/IP69K protection supports demanding washdown environments. These characteristics make the sensor suitable for hygienic industrial process monitoring.
Thermal flow monitoring
Hygienic design
Liquid and gas monitoring
3…300 cm/s liquid range
200…3000 cm/s gas range
One PNP switching output
NO/NC configurable
38 mm probe
G1 Aseptoflex Vario
30 bar pressure rating
SIP up to 140 °C
10 LED display
IP67/IP69K
Gold-plated contacts
Food and beverage processing
Hygienic production
CIP/SIP systems
Liquid circulation
Pump monitoring
Process-flow monitoring
Clean manufacturing
Industrial automation
The SI6700 provides adjustable switching for a broad flow range. For water under specified test conditions, repeatability is 1…5 cm/s. Factory-condition switch-point accuracy is ±2…±10 cm/s. Hysteresis is 2…5 cm/s. The response time is adjustable from 1…10 seconds.
Install the sensor through the appropriate G1 Aseptoflex Vario adapter. Ensure that the probe is correctly positioned within the process flow. Check the process seal before pressurising the system. Use the LED display and pushbutton to verify the switching point. Follow the process manufacturer's cleaning and SIP requirements.
| Specification | Details |
|---|---|
| Model | SI6700 |
| Product type | Hygienic flow monitor |
| Order code | SIR11ABBFPKG/US-100-IPF |
| Measuring principle | Thermal / calorimetric |
| Medium | Liquids and gases |
| Liquid setting range | 3…300 cm/s |
| Liquid sensitivity | 3…100 cm/s |
| Gas setting range | 200…3000 cm/s |
| Gas sensitivity | 200…800 cm/s |
| Probe length | 38 mm |
| Outputs | 1 digital |
| Electrical design | PNP |
| Output function | NO/NC configurable |
| Output current | 250 mA |
| Voltage drop | 2.5 V |
| Supply voltage | 19…36 V DC |
| Current consumption | <60 mA |
| Protection class | III |
| Reverse polarity | Yes |
| Power-on delay | 10 s |
| Response time | 1…10 s |
| Medium temperature | -25…95 °C |
| SIP temperature | Up to 140 °C |
| Pressure rating | 30 bar |
| Ambient temperature | -25…60 °C |
| Process connection | G1 Aseptoflex Vario |
| Wetted material | Stainless steel 316L |
| Display | 10 LED, three-colour |
| Electrical connection | M12 |
| Protection rating | IP67/IP69K |
Browse product families and jump into the exact catalog section you need.