The CA71 Portable Calibrator is a small, lightweight, multifunction calibrator by Yokogawa that can simultaneously source and measure voltage, current, resistance, TC, RTD, frequency, and pulse signals with high accuracy. 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.
General Yokogawa CA71 Specifications:
- Divided output (n/m) function, Auto-step function, Sweep function, Memory function and Communication function
- Generate voltage/current up to 30 V DC/24 mA DC and measure up to 100 V DC/100 mA DC
- Can be used as a multi thermometer
- Built-in reference junction compensation sensor
- Frequency can be set in the range of 1 Hz to 11 kHz
Specification – 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) |
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Sweep Functions | Sweep time (two options: approximately 16 seconds or approximately 32 seconds) |
Memory Function | 50 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 Rate | Approximately 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 Life | Measurement 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 Voltage | Across input terminal and output terminal, 3.7 kVAC, for one minute |
Operating Temperature And Humidity Ranges | 0 – 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) |