The Yokogawa CA500 series are high-performance, multi-function calibrators designed for use in multiple applications. The CA500 series features useful functions for fieldwork. These multifunction calibrators help you calibrate field instruments with improved source and measurement accuracy.
Two models are available, offering two different levels of accuracy:
- The CA550 achieves an accuracy of 0.010% (DC current), 0.015% (resistance), and 0.1˚C (RTD).
- The CA500 achieves an accuracy of 0.015% (DC current), 0.020% (resistance), and 0.3˚C (RTD).
- Sources and measures DC voltage, DC current, RTD, TC, resistance, frequency, and pulse signals
- Corresponds to 17 types of TC standard (JIS/IEC/DIN/ASTM/GOST R)
- Corresponds to 14 types of RTD standards (JIS/IEC/GOST R)
Multiple source patterns
Linear sweep function
Continuously Source from 0% to 100%
Step sweep function
Change output in a staircase (step) pattern by specifying the number of steps. (The number of steps can be set from 2 to 20)
Program sweep function
Users can set the desired output value (%) and the number of steps. (10 steps for CA500, 20 steps for CA550)
Automatic input/output testing *CA550 only
Automatic input/output testing is possible by setting source values for each step for a calibration target. Calibration results such as generated value, measured value, error rate, date/time, and pass/fail are saved in CSV format in the CA550 main unit.
By connecting the CA550 to a PC using a standard USB cable, the instrument can be recognized as a mass-storage device for data to be transferred to the PC.
HART Communication Protocol (CA550 only)
The following items are supported by the HART communication function:
- PV value (including reading of PV %value, AO value, SV value, TV value, QV value)
- LRV (Lower limit of the range)
- URV (Upper limit of the range)
Read and Write
- Trimming of 4 mA
- Trimming of 20 mA
*Please note that not all commands are supported by HART communication.
*TagNo acquisition function is available in BRAIN communication. No other functions are available.
CA500 features a Reflective LCD, providing improved outdoor visibility. Main display (generated/measured values) and Sub display (%, mV, Ω, etc.) allow required information at a work site to be confirmed at a glance.
Wiring information display function
A wiring diagram is displayed according to the function selected. This function allows a user to perform wiring while referring to a wiring diagram and prevents miss wiring.
Thermocouple generation using TC Mini Plug
Using a TC Mini Plug together with a compensating lead wire enables the generation of thermal electromotive force without an external RJ sensor.*
* A compensating lead wire needs to be prepared by the customer.
Easy-to-use key operation
The source can be easily switched between 0% and 100% of range. Users can also set the desired value.
The output is changed in preset steps by pressing the UP or DOWN key.
Operation key layout
Keys related to generation and measurement are arranged collectively to allow easy and intuitive operation.
SQUARE ROOT output
For 4-20 mA, 1-5 V ranges, users can choose between LINEAR and SQUARE ROOT output.