Yokogawa CA71 Process Calibration Table Portable Standard Source Thermocouple Signal Generator

Yokogawa CA71 multifunction calibrator is engineered to simplify the testing and calibration of industrial measurement devices. It supports voltage, current, thermocouple, and other process signals, allowing technicians to simulate real-world process conditions and verify instrument accuracy.The device includes automatic step output and scanning functions, which are essential for testing control loops and evaluating the response of transmitters or monitoring systems. With the ability to store up to 50 sets of measurement and source values, technicians can record calibration results for documentation and troubleshooting.Designed with portability in mind, the CA71 features a durable carrying case, battery-powered operation, and optional AC adapters, making it suitable for both field service and laboratory environments.Key Benefits of the Yokogawa CA71 Process CalibratorPortable and Field-Ready Calibration InstrumentThe CA71 is specifically designed for on-site calibration and testing, eliminating the need for large bench equipment.Benefits include:Lightweight handheld designBattery-powered operationDurable portable caseEasy transport for field techniciansIdeal for industrial maintenance teamsMultifunction Signal Generation and MeasurementOne of the major advantages of the CA71 is its ability to perform multiple calibration functions in a single device.The calibrator can generate and measure:Voltage signalsCurrent signalsThermocouple signalsProcess control signalsSensor and transmitter outputsThis multifunction capability allows technicians to calibrate several types of process instruments using a single device.High Accuracy for Industrial CalibrationThe CA71 is engineered for precise calibration measurements, ensuring reliable verification of process instruments.Accuracy benefits include:Stable signal generationConsistent measurement update rateReliable loop testingSuitable for quality assurance and calibration laboratoriesThis makes the CA71 suitable for industries where measurement accuracy is critical.Advanced Functional FeaturesAutomatic Step Output FunctionThe CA71 includes an automatic step output feature, which simplifies loop testing and calibration procedures.When the mV or mA output function is selected, the instrument automatically outputs predefined signal steps.Available step intervals:Approximately 2.5 seconds per stepApproximately 5 seconds per stepThis feature allows technicians to quickly test transmitter response and verify control system accuracy.Scanning Function for Signal TestingThe built-in scan function automatically increases or decreases output signals in a linear pattern.Scan duration options:16 seconds32 secondsThis feature is particularly useful for:Testing control system responsesSimulating process variable changesEvaluating instrument linearityMemory Storage FunctionThe CA71 includes an internal memory system capable of storing calibration data.Memory capabilities:Store 50 sets of measurement and source valuesEach set includes both generated signal and measured resultStored values can be recalled for comparison or documentationThis function improves traceability and calibration record management.Easy Operation and User InterfaceThe CA71 is designed for simple and efficient operation in the field.Rotary Switch ControlThe instrument features a rotary selector switch that allows operators to quickly choose the desired function.Advantages include:Faster setupReduced configuration errorsIntuitive operationClear LCD DisplayThe large segmented LCD display provides clear visibility of measurement values and calibration parameters.Display size:76 mm × 48 mmFeatures:High visibilityLED backlightAutomatic backlight timerPower Supply and Battery PerformanceThe CA71 offers flexible power options suitable for both field and lab environments.Power sources include:Four AA alkaline batteriesOptional AC power adaptersBattery performance:Operation ModeBattery LifeMeasurement OFF, output 5V DC~40 hoursSignal generation measurement~20 hoursSignal generation measurement (20 mA output)~12 hoursThese values are based on alkaline battery usage with backlight disabled.Safety and Protection FeaturesIndustrial calibration equipment must meet strict safety requirements. The CA71 incorporates several protection mechanisms.Safety specifications include:Current input fuse protectionVoltage input protectionHigh insulation resistanceWithstand voltage protectionProtection limits:Voltage terminal maximum input: 300V ACCurrent terminal input protection: 125 mA fuseInsulation resistance: ≥ 50 MΩ at 500V DCWithstand voltage: 3.7 kVAC for 1 minuteThese features ensure safe operation during high-voltage measurements and industrial testing tasks.Communication and Data InterfaceThe CA71 supports external communication via an RS-232 serial interface when connected with an optional communication cable.Communication benefits include:Data loggingCalibration documentationIntegration with software systemsRemote monitoringThe interface is optically isolated, improving safety and signal reliability.Applications of the Yokogawa CA71 CalibratorThe CA71 is widely used across various industries where accurate process calibration is required.Common applications include:Industrial Process ControlCalibration of:Pressure transmittersTemperature transmittersFlow measurement devicesProcess sensorsInstrumentation MaintenanceTechnicians use the CA71 for:Routine maintenance checksField troubleshootingSensor verificationLoop calibrationManufacturing and Production FacilitiesIndustries using the CA71 include:Chemical plantsOil and gas facilitiesPharmaceutical productionPower plantsAutomation factoriesLaboratory CalibrationThe device is also suitable for:Instrumentation labscalibration servicesquality control testingtraining environmentsTechnical SpecificationsSpecificationDetailsModelCA71Product TypePortable Process CalibratorDisplaySegmented LCD (76 mm × 48 mm)Measurement Update RateApprox. once per secondMaximum Voltage Input300 V ACMaximum Current Input120 mA DCCurrent Input ProtectionFuse 125 mA / 250 VMemory Storage50 setsScan Time16 seconds or 32 secondsAutomatic Step Output2.5 seconds or 5 secondsCommunication InterfaceRS-232 (optional cable)Power Supply4 AA batteries or AC adapterOperating Temperature0 – 50°COperating Humidity20 – 80% RHStorage Temperature–20 – 50°CDimensions190 × 120 × 55 mmWeightApprox. 730 g (with batteries)Standard Package ContentsThe CA71 portable calibrator package includes the essential accessories needed for calibration work.Standard accessories:Carrying case (93016)Four AA alkaline batteriesFuse A1501EFMeasurement leads (red and black)Signal generation leadsTerminal adapter (99021)Operation manualOptional AccessoriesOptional accessories can enhance the functionality of the CA71 calibrator.Available options:AC adapter (100V / 120V / 220-240V)Communication cable (91017)Reference junction sensorAccessory storage caseThese accessories allow the calibrator to be adapted for specific calibration environments and requirements.Why Choose the Yokogawa CA71 Process Calibrator?The CA71 is trusted by technicians and engineers worldwide due to its reliability and performance.Key advantages:High-precision calibration capabilityPortable and rugged designMultifunction measurement and signal generationAutomatic step and scan testing featuresInternal memory for calibration dataLong battery lifeIndustrial safety standards complianceFor organizations requiring accurate and efficient process calibration, the CA71 provides a dependable solution.Frequently Asked QuestionsWhat is the Yokogawa CA71 used for?The CA71 is used for calibrating and testing industrial process instruments, including transmitters, sensors, and control loops. It generates and measures signals such as voltage, current, and thermocouple outputs.Is the CA71 suitable for field calibration?Yes. The CA71 is designed as a portable handheld calibrator, making it ideal for field maintenance, on-site instrument verification, and industrial troubleshooting.Can the CA71 simulate 4–20 mA signals?Yes. The device includes a source function for 4–20 mA loop testing, which allows technicians to simulate transmitter outputs and verify control system responses.Does the CA71 support data communication?Yes. The calibrator supports RS-232 communication when connected using an optional communication cable, allowing data logging and integration with calibration software.How many calibration records can the CA71 store?The CA71 can store up to 50 sets of values, including both generated signal values and measured data.What power supply does the CA71 use?The instrument operates using four AA batteries or optional AC power adapters, providing flexible power options for both field and laboratory use.You Might Also Need These Products:Yokogawa TY720 Digital Multimeter High-Precision True RMS AC/DC Measurement ToolBattery Cover For Spectra Precision SP601281-8220 Pipe Laser Wall Charger For Trimble Spectra Precision DG711 DG511 100 To 240V