ABB AWT420 Operating Instruction

Also see for AWT420: Commissioning instructions Manual Manual

Contents

ABB AWT420 Operating Instruction Manual pdf 76 page image

76AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | O I/A W T4 2 0 - E N R E V. B…15 Calibration proceduresTSS calibration1-Point calibration1 At the Calibrate level, press the key:The Calibrate menu is displayed:2 Use the / keys to select the sensor to be calibrated,and press the key to confirm selection.The TSS Cal menu is displayed:3 Press the / keys to select TSS Cal andpress the key to confirm selection.The Calibration Type is displayed:4 Use the key to edit the Calibration Type .Use the / keys to select the required Calibration Typeand press the key to confirm selection.Press the and key to proceed to the next step.The High Solution Value is displayed:5 Use the key to edit the High Solution Value.Use the / keys to set the value and press the keyto confirm changes.Press the and key to proceed to the next step.6 Ensure the sensor is inserted in the solution and press thekey to start the verification routine.The calibration process screen is displayed:On completion the result screen is displayed.• If the calibration passes the new settings are displayed.• If the calibration fails the reason for failure is displayed.Note. The calibration can be canceled at any time duringthe process by pressing the Abort key ( ).CalibrateBack SelectS1 : Turb TSSS2 : Turb TSSHold OutputsCalibrateBack SelectSensor VerificationTurbidity CalTSS CalTSS Manual CalSample CollectionCollection CompleteTSS CalCalibration Type1-PointNext EditTSS CalHigh Solution Value1.000 mg/lNext EditTurbidity CalHigh Solution Value20000 NTUNext EditCalibrateStart Cal?1.000 mg/lAbort ContinueCalibratePV 1.0000 mg/lmV 0.000 NTUSettling - Please WaitAbort