Sensors and instruments require a wide variety of operation checks in the field. The Yokogawa
CA71 Handy CAL calibrator is a small, lightweight, multifunction calibrator that can simultaneously
source and measure voltage, current, resistance, TC, RTD, frequency, and pulse signals. By itself,
the Yokogawa CA71 Handy CAL calibrator can source signals for input to equipment and check
output signal from equipment.
The Yokogawa CA71 Handy CAL calibrator incorporates rotary switches for simple handling. Just open
the carrying case cover and connect the cables, and you're ready to take measurements.
A wide array of useful functions
Functions available to the multifunction Yokogawa CA71 Handy CAL calibrator include divided output
(n/m) function, auto-step function, sweet function, memory function, and communication function.
- Source: Values set in steps of 4-20 mA 24V DC Power Supply to Transmitter
Divided output (n/m) function: Output settings are divided, eliminating the need for
bothersome calculations for percentage output.
Autostep function: Changes the output value in step form based on the setting from
the divided output (n/m) function. Changes can be sourced automatically every 10%
- Online communication: RS-232C-compliant optically isolated interface
Sweep function: Linearly increases or decrease the output. The increasing / decreasing
time can be set to either 16 or 32 seconds.
Memory function: Source values and measurements forming individual value sets can
be saved to or read from the Handy Calibrator's internal memory (maximum 50 value
- Temperature monitor function
AC voltage (including supply voltage) measurement capability
In cases where numerous signal converters and other devices are mounted on a rack or panel, the
multifunction Yokogawa CA71 Handy CAL calibrator can be used to check the input and output signals
of each device while simultaneously checking the power supply. There is no need for a separate
multimeter to measure supply voltage.
The Yokogawa CA71 Handy CAL Calibrator is available as a kit, which includes:
- RS232 Communications Cable
- Data logging software for PC
- 120 VAC Power Supply
- Source Cables
- Measurement Lead Cables
- Case for Lead Cables, RJC Sensor etc.
- Instrument Case with magnetic back
- Carrying Case
- Terminal Adapter for temperature measurement
- NIST-traceable calibration certificate