N108-E1-04A (986760), страница 2
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Forcomparative output models, the display color can be set to changefrom green to red, or from red to green, according to the status of thecomparison criterion.ParameterSetting valueinitMeaningoff---onInitializes all parameters.Red113.36Use this to reset the K3MA-J after returning it to its factory-set condition.OUT1 valueAverage ProcessingOUT2 valueGreen100.05Average processing stabilizes displayed values to minimize flicker byaveraging the fluctuating input signals. Average processing can beperformed for the measurement values in either of four steps (OFF, 2times, 4 times, or 8 times).8.781RedDisplay Auto-return TimeThis function automatically returns the display to the operation level’scurrent value if no keys are pressed for a preset time (called the display auto-return time).This is useful for ignoring rapid fluctuations, e.g., eliminating spikenoise.Hysteresis (Comparative OutputModels Only)The hysteresis of comparative outputs can be set to prevent chattering in the output when the measurement value fluctuates finely nearthe OUT value.Move-to-Protect-Level TimeThe time required to shift to the protect level can be set as desired.Forced-zero FunctionIt is possible to shift from a value to the zero point with one touch ofthe Up Key on the front panel (for example, when adjusting referencevalues).Upper limit (high acting)Set valueMAX/MINHysteresisLEVELMODESHIFTUPMeasurement valueNote: Used only for releasing the forced-zero with the Protect menu.MAX/MIN DisplayONOutputThe maximum and minimum measurement (display) values from thetime the power is turned ON until the current time can be stored anddisplayed.
This is useful, for example, when measuring the maximumvalue.OFFZero-limit FunctionThe zero-limit function changes any value below the set value tozero. This is useful when you want to change negative values to zerorather than display them, or when you want to make the display in thesmallest part of the input range zero.Current valueMAX/MINMAX/MINParameter=-limlim-pSetting valueLEVELMODESHIFTUPMeaningoffOFF: No zero-limitonON: Zero-limit0 to 990 to 99: Zero-limit valueMAX valueMaxMAX/MINMAX/MINLEVELMODESHIFTUPDisplayMIN valueMinMAX/MINMAX/MINLEVELMODESHIFTUPZero-limitsetting valueInputProcess MeterK3MA-J7Nomenclature2.
Operation indicatorsMaxMin121. Main indicatorSV3. Level indicatorZTMAX/MINLEVELMODESHIFTUP4. MAX/MIN key8. Up key5. Level key6. Mode keyName7. Shift keyFunctions1. Main indicatorDisplays current values, parameters, and set values.2. Opera- 1tion indica- 2torsSVLit when output 1 is ON.Lit when output 2 is ON.Lit when a set value is being displayed or changed.MaxLit when the main indicator is showing the MAX value.MinLit when the main indicator is showing the MIN value.ZLit during the forced-zero operation.TLit when the teaching function is operable.
Blinks while the teaching function is operating.3. Level indicatorDisplays the current level that the K3MA-J is in. (See below for details.)4. MAX/MIN KeyUsed to display the MAX and MIN values when a measurement value is being displayed.5. Level KeyUsed to change the level.6. Mode KeyUsed to allow the main indicator to indicate parameters sequentially.7. Shift KeyUsed to enable a set value to be changed. When changing a set value, this key is used to move along the digits.8. Up KeyUsed to change a set value. Used to set or clear a forced-zero function when a measurement value is being displayed.Level indicatorLevelpProtectNot litOperationsfInitial settingAdvanced-function settingDimensionsFinger protectivecover (provided)101.291Main indicatorcharacter sizePanel cut-out120 min.A14.2 mmBCDE859775 min.7.6 mm092+0.5045+0.5121.38096The K3MA-J uses M3 terminals.44.848MAX/MIN8LEVELProcess Meter K3MA-JMODESHIFTUPApplication ExamplesMonitoring interiortank pressureE8AA Pressure Sensor4 to 20 mADisplaying/outputtingliquid levelPaK3MA-JPump4 to 20 mAor 0 to 10 VFlowrate sensorm/minmmK3MA-JE4PA Ultrasonic DisplacementSensor4 to 20 mAK3MA-JPumpTankFlowrate SensorDischarge valve• Monitoring gas pressure• Inspection instruments in food or pharmaceutical plants• Monitoring liquid level in cleaning tanks• Water tanks, devices using chemicals,etc.• Monitoring sendout flowrate• Water processing devices, etc.Installation1.
Insert the K3MA-J into the panel cut-out hole.2. For a waterproof installation, insert the rubber gasket onto thebody of the K3MA-J.■ Wiring Precautions• Use crimp terminals.• Tighten the terminal screws to a torque of approximately 0.5 N⋅m.• To avoid the influence of noise, route signal lines and power linesseparately.■ Wiring• Use the following M3 crimp terminals.5.8 mm max.3. Fit the adaptor into the grooves on the left and right sides of therear case, then push it until it contacts the panel to secure theK3MA-J.5.8 mm max.■ Unit Labels (Provided)• The unit labels are not attached to the K3MA-J. Select the desiredlabels from the provided sheet.Note: For scales and gauges, use the unit labels that are specified bythe relevant laws or regulations.Process MeterK3MA-J9PrecautionsWARNINGDo not touch any of the terminals while the power is being supplied.
Doing so may result in electric shock.!CautionDo not disassemble the product or touch the internal componentsof the product while the power is being supplied. Doing so may result in electric shock.!CautionDo not allow metal objects or wire cuttings to enter the product.Doing so may result in electric shock, fire, or malfunction.!CautionPerform correct settings for the product according to the controlapplication. Failure to do so may cause unexpected operation, resulting in damage to the product or injury.!CautionTake safety measures, such as installing a separate monitoringsystem, to ensure safety even if the product fails. Product failuremay prevent comparative outputs from being generated, resultingin serious accidents.5. Do not touch the slit sections or terminals while the power isbeing supplied to prevent the product from being affected by staticelectricity.6. Do not lay heavy objects on the product during use or storage.Doing so may deform or deteriorate the product.7.
Do not use paint thinner for cleaning. Use commercially availablealcohol.Mounting• Mount the product to a panel that is 1 to 8 mm thick.• Install the product in a horizontal position.• Use crimp terminals that match screw sizes.Noise Prevention• Install the product as far as possible from devices that generatestrong, high-frequency fields (such as high-frequency welders orsewing machines) or surges.• Install surge absorbers or noise filters on nearby devices that generate noise (particularly, motors, transformers, solenoids, magnetcoils, and other devices that have a high inductance component).Line filterPowersupplyinputObserve the following precautions to ensure safety.1.
Maintain the power supply voltage within the range specified inthe specifications.2. Maintain the load within the ratings specified in the specifications.3. Check each terminal for correct number and polarity before connecting it. Incorrect or reverse connections may damage or burnout internal components in the product.4. Tighten the terminal screws securely.
The recommended tightening torque is 0.43 to 0.58 N⋅m. Loose screws may cause fire ormalfunction.5. Do not connect anything to unused terminals.6. Provide a switch or circuit breaker so that operators can easilyturn OFF the power supply when necessary. Also provide appropriate indications of such devices.7. Do not attempt to disassemble, repair, or modify the product.8. Do not use the product where flammable or combustible gasesare present.ApplicationGeneral Precautions1. Do not use the product in the following locations:• Locations subject to direct radiant heat from heating equipment.• Locations subject to exposure to water, oil, or chemicals.• Locations subject to direct sunlight.• Locations subject to dust or corrosive gases (particularly sulfuric gas or ammonia gas).• Locations subject to severe changes in temperature.• Locations subject to icing or condensation.• Locations subject to shock or vibration.2.
Do not block heat dissipation around the product, i.e., provide sufficient space for heat dissipation.3. Ensure that the rated voltage is reached within two seconds afterthe power is turned ON.4. Conduct aging for 15 minutes min. after power is turned ON forcorrect measurement.10Process Meter K3MA-J+ProcessMeterSignalinputProcessMeterPowersupplyinput−Surge absorber• To prevent inductive noise, separate the terminal block wiring forthe product from high-voltage or high-current power lines.
Do notroute the wiring for the product in parallel with or tie it in a bundlewith power lines.Take the following countermeasures against inductive noise in inputlines.Analog Signal Inputs+Signalinput2-conductor shielded cableProcessMeter−• When using a noise filter for the power supply, check for the voltageand current and install it as close as possible to the Process Meter.• Do not install the product near radios, television sets, or wirelessdevices. Doing so may cause reception interference.Increasing Service Life• Do not use the product in locations where the temperature orhumidity exceeds the ratings or where condensation may occur.When installing the product in a panel, be sure that the temperaturearound the product (not the temperature around the panel) doesnot exceed the ratings.
The product service life depends on theambient temperature. The higher the ambient temperature, theshorter the service life. To extend the product service life, lower thetemperature inside the Process Meter.• Use and store the product within the temperature and humidityranges given in the specifications. When gang-mounting ProcessMeters or arranging them vertically, heat generated by the ProcessMeters will cause the internal temperature to rise, reducing the service life.
In such cases, consider forced cooling methods, such asusing a fan to circulate air around the Process Meters. Do not, however, allow only the terminals to be cooled. Doing so will increasemeasurement error.• The life of the output relays is greatly affected by the switchingcapacity and switching conditions. Use these relays within theirrated load and electrical life.
The contacts may fuse or burn if theyare used past their electrical life.Operating Procedures■ Levels“Level” refers to a grouping of parameters. The following table lists the operations that are possible in each of the levels, and the diagram tells howto move between levels. There are some parameters that are not displayed for certain models.Level nameFunctionMeasurementProtectSetting lockouts.ContinueOperationDisplaying current values, setting/clearing forced-zero function, and Continuesetting OUT 1/2 values.Initial settingMaking initial settings of input type, scaling, output operating action, Stoppedand other parameters.Advanced-function settingSetting average processing, display color settings, and other advanced-function parameters.StoppedPower ONOperation level+Time setby user(See note.)1 s min.Protect levelFlashing stops if keyis released.1 s min.+1 s min.-1234.5Indicates change of level.Continue to press the key for 2 s min.Initial setting levelPassword "−0169"1 s min.Advanced-functionsetting levelNote: The move-to-protect-level time can be set in the advanced-function setting level.Process MeterK3MA-J11■ ParametersNote: 1.
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