Yokogawa CA500 Are High-performance, Multi-function Calibrators Designed for Use in Multiple Applications.

The Yokogawa CA500 is a portable high-precision multi-function process calibrator designed for on-site calibration, inspection and maintenance of industrial process transmitters, sensors, controllers and loop instruments. As the standard model of Yokogawa CA500 series (paired with higher-end CA550), it integrates dual-channel source & measure functions, supporting full types of standard process signals for chemical, power, oil & gas, water treatment and factory automation plants. It delivers superior accuracy, rugged field-ready construction and user-friendly operation to boost calibration efficiency for field techniciansYokogawa T....

Simultaneously source and measure multi-type process signals:

• DC Voltage: ±12 V DC, accuracy up to 0.015% FS
• DC Current: ±24 mA DC (4–20 mA loop calibration core), basic accuracy 0.015% FS
• Resistance: 0–4400 Ω, accuracy 0.020% FS
• RTD: 14 international standard RTD types (Pt100, Pt1000, Cu50 etc.), temperature accuracy ±0.3°C
• Thermocouple (TC): 17 global TC standards (K, J, T, S, R, B, E, N etc.) with built-in cold junction compensation
• Frequency & Pulse: 0.001 Hz ~ 50 kHz, pulse count simulation
• Built-in 24 V loop power supply (max 22 mA) to power 4–20 mA transmitters directly

• Linear sweep: Continuous output from 0% to 100%
• Step sweep: Custom staircase output steps for point-by-point calibration
• Square root output simulation for flow transmitters with square root signal conversion

• Internal memory stores up to 100 groups of calibration test records
• USB port for data upload to PC, firmware upgrade and external power supply
• Compatible with Yokogawa dedicated calibration management software for report export

• Dimension: 130 mm (W) * 260 mm (H) * 53 mm (D); Weight: 900 g
• Housing: Reinforced anti-drop plastic with side protective bumpers, shock-resistant for outdoor field use
• Display: Reflective backlit LCD, clear readability under strong outdoor sunlight; multi-area split screen shows source value, measured value, percentage and auxiliary parameters simultaneously
• Built-in wiring diagram prompt: Screen auto-displays wiring schematic for selected signal mode to avoid misconnection
• Power supply: Dual power options – AA alkaline batteries or USB external adapter
• Operating temperature: 0°C ~ +40°C; Humidity: 20%–80% RH non-condensing

1. High-grade accuracy for reliable calibration results

   Standard CA500 features 0.015% DC current/voltage basic accuracy, far exceeding ordinary handheld calibrators, meeting industrial plant regular calibration and third-party audit requirements.

2. All-in-one multi-signal coverage reduces equipment carry load

   Single unit replaces separate voltage/current/RTD/TC signal generators and multimeters, cutting tool quantity for field maintenance teams.

3. Outdoor-friendly reflective LCD & anti-miswiring guidance

   Reflective screen eliminates glare issues under sunlight; real-time wiring diagram display removes the need to check paper manuals during urgent on-site work.

4. Robust field-oriented rugged design

   Dual-side anti-drop bumpers withstand accidental drops in plant sites; lightweight handheld body with foldable rear stand for desktop hands-free calibration.

5. Rich auxiliary calibration functions improve work efficiency

   Supports linear/step/square-root sweep, automatic percentage conversion, cold junction compensation for thermocouples and built-in loop power supply, covering all standard transmitter calibration workflows without extra auxiliary tools.

6. Traceable data recording & PC connectivity

   Onboard data logger saves full test records with parameter values; USB data export supports electronic calibration report archiving for factory quality management.

• Calibration of 4–20 mA pressure/temperature/flow transmitters
• Inspection of RTD and thermocouple temperature sensors
• Loop signal verification for DCS, PLC and control panels
• On-site maintenance in power plants, chemical refineries, water & wastewater treatment facilities
• Factory instrument regular periodic calibration and fault troubleshooting
• Petrochemical, pharmaceutical and food processing automation workshop testing