Emerson 51-DO-03, 51-DO-04 Alarm 4 setup Feed limit timer, Interval timer setup

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MODEL DO-03/04	SECTION 5.0
	SOFTWARE CONFIGURATION

5.6CHANGING ALARM PARAMETERS (continued)

11.Interval timer setup:

Alarm 1, 2, or 3 can be used as an interval timer. The selected relay will open and close at time intervals programmed by the user. The interval timer is useful for automatic cleaning of sensors.

NOTE

Alarm 4 setup

Feed limit timer

Interval timer

ExitEnter

Timer : Disable

Timer: Time activated

Interval: 24.0 hr

The alarm relay used for the interval timer cannot be used for other purposes. When a timer sequence is occurring, both current outputs are placed in hold (even if hold was not enabled) and the other two alarms will be placed in their default states.

a.From the menu header screen (step 6) move the cursor to "Interval timer."

b.With the cursor on "Interval timer", press Enter (F4). Use the key to scroll through the selections. Use the arrow keys to change settings. Press Save (F4) to store.

Refer to the diagram for definition of terms: interval, repeats, on time, off time, and recovery.

ExitEdit

FIGURE 5-4. Interval Timer

The user must determine the optimum cleaning frequency and duration. Operating the air blast cleaner for 60 seconds every eight (8) hours is a good starting point. Allow a 90-second recov- ery time.

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Contents Dissolved Oxygen Measurement System with Air Blast Cleaner Model DO-03/04Essential Instructions Page Model DO-03/04 Measuring System Section Title10.0 List of Tables11.0 Section Title List of FiguresIii Section Specifications Features and BenefitsPower Repeatability ±0.05 ppm 25CRFI/EMI EN-61326 Output Accuracy ± 0.05 mAMaximum distance between compressor and sensor Maximum continuous pressure 50 psig 446 kPa absMaterials of Construction Analyzer dimensions Enclosure dimensions Description Power required selection9240048-00 Tag, stainless steel, specify marking Section Installation InstallationUnpacking and Inspection Model or part number DescriptionInstalling the handrail mounting assembly Installing the air compressor enclosureAssembling the pipe and pipe clamp Attaching the pipe boom to the handrail mounting assembly Installing the sensor in the washer head assemblyAssembling the washer head and pipe boom Attaching the air compressor enclosure to the handrail Installing the sensor in the washer head assembly POWER, ALARM, and Output Wiring Section WiringGeneral 454EPH02 Section Section Wiring the Oxygen Sensor Sensor WiringGeneral Alarm Status Section Display and OperationDisplay KEY Functions and ControlSection Software Configuration Menu Tree for the 54eA AnalyzerOn following Main Menu Calibrate See Diagnostic Variable see Program Settings List Choices Factory Settings SetpointsChoices Factory Settings Configure Choices Factory Settings Alarm setpoints Alarm 1 setpointAlarm 2 setpoint Alarm 3 setpointMA 0.00 ppm 20 mA 20.00 ppm Output 1 12.00 mA Ranging the OutputsSimulated tests Test alarm 1 OpenTest output Outputs Alarms DisplayMeasure Oxygen Meas units ppmTemp units C Output 1 mA Output 2 mA Display contrast Timeout OnLanguage English Display left Display right Out Output 1 control OutputsOutput Measurement Output 1 Control Output 1 SetupRange 4-20 mA Dampen 0 sec Hold Last Value Configure Alarm 1 controlAlarm 1 setup Alarm 2 control Changing Alarm ParametersAlarm 1 control Alarm 1 setupAlarm Low Activate ProcessAlarm Fault Feed limit DisableTimeout 3600 sec Alarm 4 setupAlarm 4 setup Feed limit timer Interval timerTimer Disable Timer Time activated Interval 24.0 hr Interval timer setupTemperature Compensation and Temperature Units Temp comp AutoTemp units C Temp comp Manual Temp units C60 Hz Noise ReductionBar units mm Hg Bar meas AutoBarometric Pressure Main sensor cal Salinity 0.0 o/ooNoise rejection Main sensor cal Security SecurityCondition Definitions Analyzer Mode PriorityAction Definitions Section Calibration Temperature IntroductionAdjust temp + 025.1 C Temperature CalibrationSection Calibration Dissolved Oxygen Sensor Current as a Function Dissolved Oxygen ConcentrationSensor must be in zero solution Zeroing the SensorStabilizing . . . Wait Calibrating the Sensor in AIRSection Calibrate 8.32 ppm Calibrating the Sensor Against a Standard InstrumentZero main sensor Adjust temperature Calibrate main sensorStandardize Calibrating Barometric PressureSection Calibration Current Outputs Trimming the OutputsSection Maintenance Replacement PartsCleaning the membrane Replacing electrolyte solution and membraneSection Power Fuse Spare PartsReplacement Parts Location Part Number Description AIR Blast Sensor WasherSection Troubleshooting Troubleshooting When a Fault Message is ShowingFault message Explanation See Section OverviewTemperature error low or high High input currentCheck sensor zero Sense line openProblem See Section Troubleshooting When no Fault Message is Showing OxygenZero current is too high Zero reading Is unstable Possible error warning during in-process calibrationBarometric pressure reading is too high or too low Process readings are erratic Readings driftSensor does not respond to changes in oxygen level Oxygen readings are too lowTroubleshooting not Related to Measurement Problems Problem ActionSimulating Inputs Dissolved Oxygen Sensor Polarizing Voltage Resistance Expected currentSimulating Temperature Simulating temperatureSection Return of Material GeneralReturn of Materials Request Sensor or Circuit Board onlyWarranty Specifications subject to change without notice