Ultrasonic flow sensor - Hachflow

Clean the sensorThe sensor requires no routine maintenance other than the occasionalcleaning.1. Use warm soapy water to clean the sensor.2. Use clean water to rinse the sensor.TroubleshootingIntermittent dataDuring calibration, data is not sent to the datalog. Thus, the datalog canhave areas where the data is intermittent.Inspect the sensor cableD A N G E RElectrocution Hazard. High voltage wiring for the controller is conducted behindthe high voltage barrier in the controller enclosure. The barrier must remain inplace except when installing modules, or when a qualified installation technicianis wiring for power, relays or analog and network cards.W A R N I N GIf a measurement problem exists, perform the following steps.1. Inspect the sensor cable for physical damage.2. If an interconnect cable is used, check the junction box.a. Disconnect the cable at both ends (sensor and controller).b. Use an ohmmeter to check the wires for continuity and internalshorts.Sensor diagnostic and test menuThe sensor diagnostic and test menu shows current and historicalinformation about the instrument. Refer to Diagnostic/test menudescription. To access the sensor diagnostic and test menu, push theMENU key and select Sensor Setup, [Select Sensor], DIAG/TEST.OptionMODULE INFORMATIONSENSOR INFORMATIONCAL DAYSTable 4 Sensor DIAG/TEST menuDescriptionShows the version and the serial number for thesensor module.Shows the name and serial number that was enteredby the user.Shows the number of days since the last calibration.Potential Electrocution Hazard. Always disconnect power to theinstrument when making electrical connections.W A R N I N GPotential Electrocution Hazard. Only qualified personnel shouldconduct the tasks described in this section of the manual.N O T I C EPotential Instrument Damage. Delicate internal electronic componentscan be damaged by static electricity, resulting in degradedperformance or eventual failure.CAL HISTORYRESET CAL HISTORYSENSOR DATARESET SENSORShows a list of and details for each calibration.Resets the calibration history for the sensor(requires service-level passcode). All previouscalibration data is lost.Shows the number of days that the sensor has beenin operation and the current sensor signal reading inms.Resets the number of days that the sensor has beenin operation and the calibration data to defaults.16 English