198. Error messagesDisplay Caused by ActionMeasurement (EC, NaCl, TDS and temperature)out of range. Check sensor.Low battery charge. Replace the batteries.E1Unstable reading during a stability measurementor during calibration.100-second timeout.Check that the sensor is properly immersed inthe sample.E2 During calibration, the difference between theconstants obtained > 30%Check standards.Check sensor.E3 During calibration,the cell constant obtained < 0.05 cm-1Check standards.Check sensor.E4 Salinity cannot be calculated. TC = 0 Modify TCE5 Same standards Check standards.Check sensor.ENGLISHsensION+ EC5 HACH 0710.indd ANG:19sensION+ EC5 HACH 0710.indd ANG:19 7/9/10 12:51:037/9/10 12:51:03