Hach sc200 User Manual

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Problem ResolutionController will not power up, or powers upintermittentlyMake sure the AC power connections are properly terminated inthe controller.Make sure the power strip, line power, wall plug are all properlyplugged in.Contact Technical SupportNetwork or sensor module not recognizedMake sure the module is properly installed.Make sure the module selector switch is set to the propernumber.Remove sensor module and install the module into the secondanalog slot. Apply power to the controller and allow the controllerto perform a device scan.Contact Technical Support.Sensor not recognizedNote: Example of possible display message: ****If the sensor is an analog sensor and a corresponding module isinstalled in the controller, refer to the instructions supplied withthe Network or Sensor Module.Make sure the digital connector wiring harness is seated on theinside of the door assembly and that the wiring harness is notdamaged.If the digital sensor is connected to the controller with a digitaltermination box, user supplied junction box, digital extensioncables, or a user-supplied extension cable, connect the sensordirectly to the controller and perform a device scan. If thecontroller recognizes the sensor, check that all the wiring in thejunction boxes or extension cables is correct.Make sure that only two sensors are installed in the controller.Although two analog module ports are available, if a digitalsensor and two analog modules are installed, only two of thethree devices will be seen by the controller.Contact Technical SupportDevice Missing error message appearsPerform a Device Scan from the Test/Maintenance menu.Power cycle the controllerTest and Maintenance menu1. From the Settings Menu, select Test/Maint and push ENTER.Option DescriptionScan devices Performs a scan for active and missing devices.Output cal• Output 1• Output 2Lets the user calibrate the 4–20 mA outputs with a 250 ohm resistor in series tothe mA output terminals. The settings for each output are adjusted until thecorrect value (4 mA or 20 mA) is supplied.Calibrate 4 mA output (Min: 0 Max: 25000)Calibrate 20 mA output (Min: 35000 Max: 65533)Hold outputs Sets the value the controller sends to an external system for a defined period oftime. After the time period, the instrument goes back to reporting real time values.Set activation—Launch or releaseSet Outmode—Hold Outputs (default) or Transfer OutputsSet Channels—All (default) or select from hardware list48 English