IFC 110 F V2.0 IFC 110 F-EEx V2.0 - Krohne

Sect. 7.5 Part C Special applications, functional checks, service, and order numbers7.5 Faults and symptoms during start-up and flow measurement• Most faults and symptoms occurring with the flowmeters can be eliminated by following theinstructions indicated in the following tables.• For greater clarity, faults and symptoms in the tables are divided into different groups.• LED light-emitting diodes on the front panel (status messages)DIPSCdisplaycurrent output Ipulse outputs P and A1status outputs D1, D2, A1 and A2control inputs C1 and C2Before contacting the KROHNE Service Department,please read the instructions in the table. THANK YOU.Group LED Display Cause Remedial actionLED 1 Both LEDs flash A/D converter range Reduce flow rate;exceededif unsuccessful, test asdescribed in Section 7.6Measuring tube drained,-A/D conv. range exceededFill measuring tubeLED 2 Red LED flashes Fatal error, hardware and/or Replace signal converter,software fault see Section 8.3LED 3 Cyclic flashing of red Hardware fault, watchdog Replace signal converter,LED, approx. 1 sec. trips see Section 8.3LED 4 Red LED on Hardware fault Replace signal converter,continuously see Section 8.370 IFC 110 F 05/2003