Yokogawa CA71 Multifunction Calibrator

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Yokogawa CA71 Multifunction Calibrator Product Highlights

  • The Yokogawa CA71 Handy Calibrator build with rotary switches for simple handling.
  • The supply source of 24V DC Power supply for to transmitter with current 4 – 20mA steps measurement.
  • The autostep function changes the output value in step form based on the setting from the divided output (n/m) function, hence changes can be sourced automatically every 10% or 25%.
  • Increasing or decreasing linearly the output, while time can be set to either 16 or 32 seconds.
  • The memory function allows the source values and measurement forming individual value sets can be saved to or read from CA71 Handy Calibrator’s internal memory. (Maximum 50 value sets).
  • Temperature Monitor Function
Supply in box
  • CA71/SP1
  • Communication Cable
  • Data Logging Software
  • Power Adaptor
  • Magnetic Backing Instrument Case
  • Source/Measure Cable
  • NIST Traceable Certificate


Data Sheet: Yokogawa CA71 Data Sheet Catalogue: Yokogawa CA71 Catalog


Product Specifications

Specification – Model CA71

Auto-Step Output Functionn value sent automatically when n/m function selection is selected (two options: approximately 2.5 seconds/step or approximately 5 seconds/step)
Sweep FunctionsSweep time (two options: approximately 16 seconds or approximately 32 seconds)
Memory Function50 value sets (generated and measured values are stored as value sets with the same address (up to 50 value sets can be stored))
Measuring Unit Maximum InputVoltage terminal: 300 V AC Current terminal: 120 mA DC
Current Terminal Input ProtectionFuses: 125 mA/250 V
Measuring Unit Ground VoltageMaximum 300 V AC
Measurement Display Updating RateApproximately once per second
Serial InterfaceEnabled when communication cable (RS232) is connected; sold separately as optional accessory
DisplaySegmented LCD (Approx. 76 mm × 48 mm)
BacklightLED backlight; auto-off after one minute (from when LIGHT key is turned on)
Power SupplyFour AA alkaline batteries, or special AC adapter (sold separately)
Battery LifeMeasurement off, output 5 V DC/10 kO or greater: Approximately 40 hours Simultaneous signal generation/measurement, output 5 V DC/10 kO or greater: Approximately 20 hoursSimultaneous signal generation/measurement, output 20 mA/5 V: Approximately 12 hours (using alkaline batteries, with backlight off)
Auto-Power-Off FunctionApprox. 10 minutes (auto-power-off can be disabled through a DIP switch setting)
Applicable StandardEN55011: 1998, Class B, Group 1 EN61326-1: 1997 + A1: 1998 IEC61010-1, IEC61010-2-31
Insulation ResistanceAcross input terminal and output terminal, 500 V DC, 50 MO or greater
Withstand VoltageAcross input terminal and output terminal, 3.7 kVAC, for one minute
Operating Temperature And Humidity Ranges0 – 50°C, 20 – 80% RH (no condensation)
Storage Temperature And Humidity Ranges-20 – 50°C, 90% RH or less (no condensation)
External DimensionsApprox. 190 × 120 × 55 mm
WeightApprox. 730 g (including batteries)