Overview
The SU 502 is a single channel controller for level detection of KROHNE limit switches with 8/16 mA output. The controller powers connected sensors and simultaneously processes their measuring signals. Via the integrated relay, simple control tasks can be solved. Typical applications are monitoring functions such as overfill or dry run protection. The SU 502 can also be used in hazardous areas and Safety Instrumented Systems (SIS). Optionally, an additional second relay can be ordered. Via a DIL switch the function of the second relay can be determined. It can be configured as fail safe relay or as second level relay.
Product features and options depend on device configuration: Contact us to make sure that your preferred functionality can be combined in one device.
- Powers KROHNE OPTISWITCH limit switches with 2-wire electronics and simultaneously processes their measuring signals
- DIL switch for flexible determination of second relay function
- Clearly visible status indication via 3 LEDs
- With a test key for test function
- All electronic parts are fully potted
- Easy DIN rail mounting (acc. to DIN EN 50022/60715)
- SIL 2/3 certified
Specifications
Depending on selected device configuration
General information
| Product type | Level accessory |
| Product family name | SU |
| Product positioning | For vibration level switches with 8/16 mA output |
Approvals/Standards
| Certificates/Approvals Ex | ATEX, IECEx |
| Certificates/Approvals Safety | SIL 2/3 |
| Ingress protection | IP20 |
US 15017 
GB 12633 
CA 10270 
AU 9334 
IE 5241 
BR 3199 
NZ 1817 
CN 1225 
