Proline Promass 83E/F/O Modbus RS485 Operating Instructions

Proline Promass 83 Modbus RS485Troubleshooting9 Troubleshooting9.1 Troubleshooting instructionsAlways start troubleshooting with the following checklist if faults occur after commissioning orduring operation. The routine takes you directly to the cause of the problem and the appropriateremedial measures.Check the displayNo display visible and nooutput signals present.No display visible, butoutput signals are present.Display texts are in aforeign language.Measured value indicated,but no signal at the currentor pulse output1. Check the supply voltage Terminals 1, 22. Check device fuse ä 10685 to 260 V AC: 0.8 A slow-blow / 250 V20 to 55 V AC and 16 to 62 V DC: 2 A slow-blow / 250 V3. Measuring electronics defective order spare parts ä 1011. Check whether the ribbon-cable connector of the display module is correctly pluggedinto the amplifier board ä 1012. Display module defective order spare parts ä 1013. Measuring electronics defective order spare parts ä 101Switch off power supply. Press and hold down both the P keys and switch on themeasuring device. The display text will appear in English (default) and is displayed atmaximum contrast.Measuring electronics defective order spare parts ä 101ÆError messages on displayErrors which occur during commissioning or measuring operation are displayed immediately. Error messages consist of avariety of icons. The meanings of these icons are as follows (example):– Error type: S = system error, P = process error– Error message type: $ = fault message, ! = notice message– MEDIUM INHOM. = error designation (e.g. fluid is not homogeneous)– 03:00:05 = duration of error occurrence (in hours, minutes and seconds)– #702 = error number" Caution!See the information ä 41ÆOther error (without error message)Some other error hasoccurred.Diagnosis and rectification ä 99Issue/Rev. 0.2 (12/12) MN0M030 • Page 89