Yokogawa CA71 Portable Calibrator Handy Calibrators

The CA71 Portable Calibrator is a small, lightweight, multifunction calibrator that can simultaneously source and measure voltage, current, resistance, TC, RTD, frequency, and pulse signals. The Handy Calibrator incorporates rotary switches for simple handling. Just open the carrying case cover and connect the cables, and you're ready to take measurements.

Source and measure operations can be performed at the same time.

(Select from the following source signal and measurement signal options: voltage,

current, resistance, thermocouple (TC), resistance temperature detector (RTD),

frequency, pulse).

AC voltages, including supply voltage, can be measured.

Includes a wide array of additional functions.

Easy operation.

Compact size and Lightweight

Specification of Model CA71

Auto-Step Output Function n 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 Input Voltage terminal: 300 V AC Current terminal: 120 mA DC

Current Terminal Input Protection Fuses: 125 mA/250 V

Measuring Unit Ground Voltage Maximum 300 V AC

Measurement Display Updating RateApproximately once per second

Serial Interface Enabled when communication cable (RS232) is connected; sold separately as optional accessory

Display Segmented LCD (Approx. 76 mm × 48 mm)

Backlight LED backlight; auto-off after one minute (from when LIGHT key is turned on)

Power Supply Four 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 Function Approx. 10 minutes (auto-power-off can be disabled through a DIP switch setting)

Applicable Standard EN55011: 1998, Class B, Group 1

EN61326-1: 1997 + A1: 1998

IEC61010-1, IEC61010-2-31

Insulation Resistance Across 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 Dimensions Approx. 190 × 120 × 55 mm

Weight Approx. 730 g (including batteries)