Yokogawa CA71 Multifunction Calibrator

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Short description:

Output split function (n/m), automatic step function, scan 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-purpose thermometer
Integrated reference temperature compensation sensor
The frequency can be set in the range from 1 Hz to 11 kHz

Introduction to the Yokogawa CA71 Multifunction Calibrator

The Yokogawa CA71 Multifunction Calibrator is a compact, lightweight, and versatile device capable of simultaneously sourcing and measuring voltage, current, resistance, thermocouples (TC), resistance temperature detectors (RTD), frequency, and pulse signals with high accuracy. It features easy-to-use rotary switches, making it ready for immediate use by simply opening the carrying case and connecting the cables.

Features of the Yokogawa CA71 Multifunction Calibrator

Power Source: The CA71 provides 4-20 mA steps and 24V DC power for transmitters.
Output Divide Function: Simplifies percentage output calculations.
Auto Step Function: Changes output values incrementally based on the divide output function settings.
Online Communication (CA71): Features an optically isolated RS-232C interface.
Scan Function: Increases or decreases output linearly with selectable rise/fall times of 16 or 32 seconds.
Memory Function: Stores and recalls up to 50 sets of source and measurement values from the internal memory.
Temperature Monitoring Function

Specifications Summary – Model CA71

Functions	Details
Auto Step Function	2.5 sec/step or 5 sec/step
Scan Function	16 sec or 32 sec
Memory Function	Stores 50 value sets
Maximum Measurement Input	Voltage: 300 V AC, Current: 120 mA DC
Current Input Terminal Protection	Fuse: 125 mA/250 V
Earth Voltage of Measurement Unit	Maximum 300 V AC
Display Update Rate	Approximately once per second
Serial Interface	RS232 connection (sold separately)
Display	Segment LCD (76 mm × 48 mm)
Backlight	LED backlight, auto-off after 1 minute
Power Supply	4 AA alkaline batteries or AC adapter (sold separately)
Battery Life	12 to 40 hours (depending on usage conditions)
Auto Power Off Function	Approximately 10 minutes (can be disabled)
Applicable Standards	EN55011: 1998, EN61326-1: 1997 + A1: 1998, IEC61010-1, IEC61010-2-31
Insulation Resistance	500 V DC, 50 MΩ or higher
Withstand Voltage	3.7 kVAC, for 1 minute
Operating Temperature and Humidity	0 – 50°C, 20 – 80% RH (non-condensing)
Storage Temperature and Humidity	-20 – 50°C, 90% RH or lower (non-condensing)
Dimensions	190 × 120 × 55 mm
Weight	730 g (including batteries)

Accessories and Components Included with the Yokogawa CA71

Included Accessories:

CA71/SP1: Communication cable, data recording software, 120V power supply, magnetic tool case, power/measurement cables, NIST traceable certification.

Standard Accessories:

Carrying Case: 93016
Four AA Alkaline Batteries: A1070EB × 4
Fuse: A1501EF (current input terminal protection)
Measurement Leads (one red, one black): RD031
Signal Leads (one red, two black): 98020
Terminal Adapter: 99021
User Manual: IM CA71-E

Optional Accessories (sold separately):

AC Adapter: 94012 (100 V AC power supply), 94013 (120 V AC power supply), 94016 (220–240 V AC power supply)
Accessory Case: B9108XA
Communication Cable: 91017
RJ Sensor: B9108WA (for reference temperature compensation)