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TRANSFORMER COMPONENTS
Liquid level indicator
Instruction manual
3. Operating principle 10
3.1 Functioning 10
3.2. Outputs 10
3.3 Technical features 10
3.3.1 Microswitches 10
3.4 Tests 11
4. Installation 12
4.1 Float assembly 12
4.1.1 LA version (radial) 12
4.1.2 LB version (axial) 12
4.2 Liquid level indicator: general information 13
4.3 Comem L140 14
4.4 Comem OLI / eOLI 14
4.5 Comem OLI22 / eOLI22 (with special flange) 15
4.6 Comem L220 15
4.7 Comem L340 16
4.8 Comem eViewer 16
5. Electrical connection 17
5.1 Micro-switches wiring 18
5.2 Analog output and Modbus communication
wiring (for Comem eOLI and Comem eOLI22) 18
5.2.1 Power voltage 18
5.2.2 Analog output 18
5.2.3 Modbus communication (optional) 18
5.3 Comem eViewer wiring 18
5.3.1 Power voltage 18
5.3.2 Analog input 18
5.3.3 Comem eViewer – Comem eOLI connections 19
6 Operation and maintanence 20
6.1 Operation 20
6.2 Maintenance 20
6.3 Storage 20
A. Appendix A: MODBUS communication 21
A.1 MODBUS register 21
A.1.1 MODBUS address 21
Contents
1. Safety 2
1.1 Safety instructions 2
1.2 Specified applications 2
1.3 Safety notes on the equipment operation 2
2. Drawings 3
2.1 Comem OLI 3
2.2 Comem eOLI 3
2.3 Mounting flange 4
2.3.1 Comem OLI/eOLI (radial) 4
2.3.2 Comem OLI/eOLI (axial) 4
2.3.3 Comem OLI22 / eOLI22 (radial) 5
2.3.4 Comem OLI22 / eOLI22 (axial) 5
2.4 Comem L140 6
2.4.1 Radial 6
2.4.2 Axial
2.5 Comem L220 7
2.6 Comem L340 8
2.7 Comem eViewer 9
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