Multifunction Process Calibrator ： Accuracy 0.02% voltage (DCV), current (mA), resistance (Ω), thermocouples (TC), thermal resistance (RTD), frequency 24 / 25

1. High Accuracy for Reliable Calibration (0.02%)

With a basic accuracy of ±0.02% (reading + range), both calibrators provide lab-grade confidence in a portable tool. The temperature coefficient is just 0.1 × accuracy specification per °C outside the 18–28°C range, ensuring accuracy remains stable in hot boiler rooms or cold outdoor cabinets.

2. True Multifunction: Measure & Source in One Device

Eliminate the need for separate meters and signal generators:

• Measure: DCV, mA (with loop power), resistance, RTDs, thermocouples, and frequency.
• Source: Simulate DCV, mA, resistance, RTD, TC, and frequency signals.
• Loop Power: Built-in 24V loop supply powers transmitters while measuring their 4-20mA output.

3. VICTOR 25 Exclusive: Pressure Calibration Function

This is the critical advantage of the VICTOR 25 over the 24.

• The VICTOR 25 display explicitly shows "MPa" units, confirming pressure measurement and source capabilities.
• Connect external pressure modules to calibrate:
  • Pressure transmitters (4-20mA loop-powered)
  • Pressure switches (setpoint and reset testing)
  • Pressure gauges (analog and digital)
  • I/P converters (current-to-pressure)
• Combine pressure generation (via external hand pump) with electrical measurement – simultaneously apply pressure and read the transmitter's mA output on the same device.
• This makes the VICTOR 25 a complete pressure and electrical loop calibrator, eliminating the need for separate pressure calibration equipment for routine jobs.

Use Case Example: A technician testing a 4-20mA pressure transmitter at 0%, 50%, and 100% of span. The VICTOR 25 measures the applied pressure (via external module) and the mA output simultaneously, calculates error, and stores results – all in one tool.

4. Superior Noise Rejection for Stable Readings

Industrial environments are electrically noisy. Both models deliver:

• NMRR: ≥60dB at 50/60Hz – rejects line-frequency noise.
• CMRR: ≥140dB at 50/60Hz – eliminates ground loop interference, ensuring stable readings on long cable runs.

5. Advanced Temperature Compensation for TC & RTD

Both models feature an internal temperature compensation sensor from -10°C to 50°C with compensation error ≤0.5°C. Support includes TC types K, E, J, T, B, R, S, N and RTDs such as Pt100, Pt200, Pt500, Cu50, and more.

6. Rugged Input Protection

• VICTOR 24: 30Vpk between VΩHz and COM; mA input protected by 100mA/250V fast-blow fuse.
• VICTOR 25: Enhanced protection with 60Vpk on VΩHz/COM terminals – better suited for industrial panels with higher stray voltages.

7. User-Friendly Features for Efficient Workflow

• Data Hold, AVG, HD Backlight: Freeze readings, filter noise with averaging, and work in low light.
• VICTOR 25 Exclusive – 25%/100% Step Key: Instantly output 4, 8, 12, 16, and 20mA for rapid linearity checks of valve positioners and transmitters.
• Manual/Automatic Stepping & Run Cycles: Automate ramping and stepping tests.
• USB Communication: Upload data for documentation and compliance.
• ZERO Function: Quickly null offsets.

8. Designed for the Real World: 1-Year Calibration Cycle

Both models maintain 0.02% accuracy for one full year under normal use (18–28°C, 35–70% RH). Operating range extends from 5°C to 40°C with a defined temperature coefficient.

Which One Should You Choose?

• Choose VICTOR 24 if you work exclusively with electrical signals (V, mA, Ω, TC, RTD, frequency) and do not require pressure calibration. It is a cost-effective, high-accuracy electrical calibrator.
• Choose VICTOR 25 if you routinely calibrate pressure transmitters, pressure switches, I/P converters, or any device combining pressure input with electrical output. The built-in pressure calibration support (external module required) plus higher input protection (60Vpk) and dedicated step keys make it a true all-in-one process calibrator for both pressure and electrical loops.

For the instrumentation technician who faces both pressure and electronic loops daily, the VICTOR 25 is the clear upgrade – offering pressure capabilities that the VICTOR 24 simply does not have.