The IFM SI6800 is a hygienic thermal flow monitor designed for food, beverage, and clean-process applications. It provides adjustable liquid flow monitoring from 3…300 cm/s and gas monitoring from 200…3000 cm/s. The sensor has a configurable PNP switching output with normally open or normally closed operation. Its G1 Aseptoflex Vario process connection and stainless-steel wetted parts support hygienic installations. The SI6800 also supports SIP processes up to 140 °C and pressure ratings up to 30 bar.
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The SI6800 is designed for applications where hygienic construction is important. Its wetted components are made from stainless steel and the process connection uses the Aseptoflex Vario system. The sensor monitors both liquid and gas flow. A 55 mm probe provides the sensing element for process monitoring. This makes it suitable for hygienic production systems.
The SI6800 provides one configurable PNP switching output. The output can operate as normally open or normally closed. A pushbutton allows adjustment of the flow switching point. A 10-LED bar display provides a visual indication of flow and switch-point status. This simplifies commissioning and operational checks.
The sensor supports medium temperatures from -25…95 °C. For SIP processes, the medium temperature can reach 140 °C. Pressure resistance is rated at 30 bar. IP67/IP69K protection provides additional resistance to moisture and cleaning conditions. These characteristics make the SI6800 appropriate for hygienic process environments.
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
G1 Aseptoflex Vario connection
55 mm probe
30 bar pressure rating
SIP up to 140 °C
10 LED bar display
IP67/IP69K
Gold-plated contacts
Food processing
Beverage production
CIP/SIP systems
Hygienic process equipment
Pump protection
Liquid circulation
Process-flow monitoring
Clean manufacturing systems
The SI6800 is designed for hygienic systems where cleanability and material compatibility are important. Its stainless-steel wetted construction helps support demanding process conditions. The Aseptoflex Vario connection provides a suitable interface for hygienic process adapters. High temperature capability supports SIP processes. This combination makes the sensor suitable for food and beverage automation.
Install the sensor using a compatible Aseptoflex Vario process adapter. Position the sensing probe correctly within the process line. Ensure that the process connection is correctly sealed before commissioning. Verify the flow switching point using the LED display and pushbutton. Follow the application's cleaning and sterilisation procedures when applicable.
| Specification | Details |
|---|---|
| Model | SI6800 |
| Product type | Hygienic flow monitor |
| Measuring principle | Thermal / calorimetric |
| Order code | SIR11ABBFPKG/US-100-IPF |
| 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 | 55 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 |
| Electrical connection | M12 |
| Display | LED bar graph |
| Protection | IP67/IP69K |
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