CA500 Serie - Multifunktions-Prozess-Kalibratoren

Die CA500 und CA550 sind vor Ort einsetzbare, leistungsfähige und multifunktionale Prozesskalibratoren die für den Einsatz in verschiedenen Anwendungen konzipiert wurden. Diese Multifunktionskalibratoren verfügen über nützliche Funktionen für die Arbeit vor Ort und helfen bei der Kalibrierung von Feldgeräten mit verbesserter Quellen- und Messgenauigkeit.

Es gibt zwei Modelle mit unterschiedlicher Genauigkeit:

Modell CA500 CA550
DC Strom 0,015 % 0,010 %
Widerstand 0,020 % 0,015 %
RTD 0,3 ˚C 0,1 ˚C



  • Messung und Quelle für DC Spannung, DC Strom, RTD, TC, Widerstand, Frequenz und Puls-Signale
  • entspricht folgenden Standards:

    • 17 Standards für TC (JIS/IEC/DIN/ASTM/GOST R) und
    • 14 Standards für RTD (JIS/IEC/GOST R)

Unterschiedliche Muster für Quellen

  • Linear Sweep
    kontinuierlich von 0 % bis 100 %
  • Step Sweep
    Ausgang in einem Stufenmuster (Step),
    wobei die Anzahl der »Steps« von 2 bis 20 festgelgt werden kann
  • Program Sweep
    Benutzerdefinierter Ausgangswert (%) und Anzahl der Steps
    (10 Steps für CA500, 20 Steps für CA550)



Automatic input/output testing *CA550 only
(Program sweep)

  • 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

  • Version update will be available in June, 2020.(Free)

The following items are supported by HART communication function:

  • TagNo.
  • PV value (including reading of PV %value, AO value, SV value, TV value, QV value)
  • LRV (Lower limit of range)
  • URV (Upper limit of range)
  • Damping
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.

Easy-to-view Display

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 mis-wiring.

Thermocouple generation using TC Mini Plug

Using a TC Mini Plug together with a compensating lead wire enables generation of thermal electromotive force without an external RJ sensor.*

* A compensating lead wire needs to be prepared by customer.

Easy-to-use key operation

  • 0 % / 100 % keys
    The source can be easily switched between 0% and 100% of range. Users can also set a desired value.
  • UP/DOWN keys
    The output is changed in preset steps by pressing UP or DOWN key.
  • Operation key layout
    Keys related to generation and measurement are arranged collectively to allow easy and intuitive operation.


For 4 to 20 mA, 1 to 5 V ranges, users can choose between LINEAR and SQUARE ROOT output.



The CA500 series can be used as a transmitter simulator to perform a loop test. It sinks the set current from an external voltage source of instrumentation equipment.

Two-wire Transmitter Loop Check

DC mA signals can be measured by supplying power to the transmitter from a 24 V DC power supply. DC mA signal measurement and zero-point check can be performed with an accuracy of 0.01% of reading (0.015% of reading for CA500).

Zero point adjustment of HART transmitter

CA550 supports HART communication (Universal command/Common practice command).
Reading of HART device information, writing of LRV/URV, and trimming of analog output are possible.


The CA500 series corresponds to 17 types of TC for sourcing. It achieves the high basic accuracy of 0.5°C (typical of type K), two times better than the previous model.

Also, input/output testing is possible with a single CA500/CA550, as it can measure output signals.


CA500/CA550 corresponds to 14 types of RTD for sourcing. It achieves a high basic accuracy of 0.1°C* (typical of type Pt100), which enables it to operate a highly reliable test.

Additionally, input and output testing of temperature transmitters is possible at the same time.

*Accuracy for CA550


This calibrator performs measurement of pulse signal integration from a flowmeter and generates a pulse to a receiver, such as integrating counter or pulse converter. Integration time can be set from 1 min to 60 min.



SU2006A Soft carrying case

Soft Carrying Case

90040 TC Mini Plug Set 1

K (Yellow) /E (Violet) /J (Black) /T (Blue) /R,S (Green) /B,U (White) /G (Red/Green) /D (Red/White) /C (Red) /N (Orange)

90045 TC Mini Plug Set 2

K (Yellow) /E (Violet) /J (Black) /T (Blue)

90080 RJ Sensor

For the CA320 / CA500 Series: RJ (Reference Junction)

99045 Binding Post (Red Black)

Used for terminating (attaching) a single wire or test lead.

99046 Binding Post (Red Red)

Used for terminating (attaching) a single wire or test lead.

98020 Lead cable for source

Set aus einem roten und zwei schwarzen Kabeln, ca. 1,7 m

98026 Grabber Clip

A set of separate red and black clips (for 2 m long wires).

98035 Lead Cables

Set aus drei roten und einem schwarzen Kabel, Krokodilklemme – Bananenstecker, ca. 1,7 m

98064 Lead Cables

Kabelset mit Krokodilklemmen und Bananenstecker nur für das Kontrollsignal (max. 70 V), CAT I, ca. 1,7 m

A1421WL USB Cable

USB 2.0 Hi-Speed Kabel, Länge: 2 m


2019-12-12 Neue Firmware Version 1.02.000
Verbesserte Kommunikation
Opens external link in new window Link zum Software-Download bei Yokogawa

2019-10-17 Press Release (pdf ca. 350 kB)
Yokogawa Test & Measurement Releases CA500 and CA550 Multifunction Process Calibrators
For improved efficiency in on-site work