1. Introduction
The VICTOR 72A/72B is a series of multi-function signal generators and process calibrators designed for industrial maintenance and calibration tasks. These devices offer high accuracy and a range of measurement and output functions, making them indispensable tools for professionals.
Key features include active/passive output, selectable current ranges (0-20mA / 4-20mA), 0.1% basic accuracy, and a loop check function. The VICTOR 72B model further extends capabilities with frequency and thermocouple measurement/output.
2. Package Contents
Upon opening the package, ensure all items listed below are present and in good condition. If any items are missing or damaged, please contact your vendor.
- Main Unit (VICTOR 72A or 72B Signal Generator)
- User Manual
- Test Leads (multi-colored)
- Data Cable (USB Type-C)
- Color Box (packaging)
3. Setup and Charging
3.1 Initial Charging
The device comes with a built-in 3.7V/3000mAh high-capacity lithium battery. Before first use, it is recommended to fully charge the device.
- Connect the provided USB Type-C data cable to the Type-C port on the device.
- Connect the other end of the data cable to a standard USB power adapter (not included) or a computer's USB port.
- The charging indicator on the device will show the charging status.
3.2 Connecting Test Leads
The signal generator features input/output jacks designed for secure connections. Always ensure test leads are inserted smoothly and locked securely.
- Identify the appropriate input (e.g., "INPUT", "LOOP") or output (e.g., "OUTPUT", "COM") jacks for your desired measurement or signal generation.
- Insert the colored test leads into the corresponding jacks. The jacks feature self-resetting fuses for overload protection.
4. Operation
4.1 User Interface and Controls
The device features a 2.4-inch TFT HD screen with an intuitive user interface and Chinese function labels. The ergonomic key layout distinguishes between measurement and output functions:
- Blue keys (left side): For measurement functions.
- Yellow keys (right side): For output functions.
4.2 Basic Functions
The VICTOR 72A/72B offers a variety of functions for industrial calibration and testing:
- Active/Passive Output: Provides flexibility for different circuit requirements.
- Selectable Current Range: Choose between 0-20mA and 4-20mA for current output.
- Loop Check Function: Internal 24V loop power supply with simultaneous current measurement (72B only).
- Measurement Functions:
- DC Voltage
- DC Current
- Continuity
- Thermocouple (72B only)
- Frequency (72B only)
- Output Functions:
- DC Voltage
- DC Current (Active/Passive)
- Frequency
- Thermocouple (72B only)
- Configurable Waveform Parameters: Supports auto stepping, ramp, and triangular wave outputs.
- Preset Value Setting & Engineering Unit Conversion: For streamlined calibration processes.
4.3 System Settings
Access the 'Setting' menu to configure various device parameters:
- Auto Shutdown Time: Default is 5 minutes of inactivity. Can be set up to 99 minutes or disabled.
- Buzzer: Enable or disable audible alerts.
- Language: Switch between Chinese and English interface.
- Factory Reset: Restore default settings.
5. Specifications
The following tables detail the measurement and output capabilities of the VICTOR 72A and 72B models.
5.1 General Specifications
- Model Numbers: VICTOR 72A, VICTOR 72B
- DIY Supplies: Electrical
- Origin: Mainland China
- Certification: CE
- Battery Included: Yes (Built-in 3.7V/3000mAh Lithium Battery)
- High-concerned chemical: None
- Dimensions: Approximately 80mm (width) x 119mm (height)
5.2 Measurement Functions
| Function | Range | Scope | Resolution | Accuracy | Note |
|---|---|---|---|---|---|
| DC Voltage | 100mV | -10.0mV ~ 110.0mV | 100uV | 0.1%+4 | |
| DC Voltage | 30V | -5.00V ~ 30.00V | 10mV | 0.1%+4 | |
| DC Current | 20mA | 0.00mA ~ 22.00mA | 0.01mA | 0.1%+4 | |
| Loop Power | 24V | ||||
| Continuity | OPEN/CLOSE | ||||
| Thermocouple | R, S, B, E, J, T, K, N | 1°C | 0.1%+1 | 72B only |
Note: DCV characteristics: input impedance > 1MΩ (nominal); 1000V 1MΩ (nominal). DCC characteristics: Burden voltage: Approx. 18mV/mA (nominal); 50mA/30V. Thermocouple characteristics: Accuracy does not include cold junction compensation error or thermoelectric potential effects.
5.3 Output Functions
| Function | Range | Scope | Resolution | Accuracy | Note |
|---|---|---|---|---|---|
| DC Voltage | 100mV | 0.0mV ~ 110.0mV | 100uV | 0.1%+4 | |
| DC Voltage | 20V | 0.00V ~ 21.00V | 10mV | 0.1%+4 | |
| DC Current (Active) | 20mA | 0.00 ~ 22.00mA | 0.01mA | 0.1%+4 | |
| DC Current (Passive) | 20mA | 0.00 ~ 22.00mA | 0.01mA | 0.1%+4 | |
| Frequency | 100Hz ~ 1kHz, 1kHz ~ 10kHz, 10kHz ~ 100kHz | 1.0Hz ~ 100kHz | 0.1Hz | 0.1%+2 | 72B only |
| Thermocouple | R, S, B, E, J, T, K, N | 1°C | 0.1%+1 | 72B only |
Note: DCC characteristics: 20mA max load 1kΩ. TC characteristics: Thermocouple output accuracy uses ITS-90 temperature scale. Accuracy does not include cold junction compensation error or thermoelectric potential effects.
6. Maintenance
6.1 General Care
- Keep the device clean and dry. Use a soft, damp cloth for cleaning; do not use abrasive cleaners or solvents.
- Avoid exposing the device to extreme temperatures, humidity, or direct sunlight.
- Store the device in a safe place when not in use to prevent physical damage.
6.2 Battery Care
- To prolong battery life, avoid fully discharging the battery frequently.
- If storing the device for an extended period, charge the battery to approximately 50% and recharge every few months.
- Use only the provided data cable for charging.
7. Troubleshooting
This section addresses common issues you might encounter with your VICTOR 72A/72B Signal Generator.
- Device does not power on:
- Ensure the battery is sufficiently charged. Connect the device to a power source using the Type-C cable and try again.
- Check the power button for proper function.
- Inaccurate readings/outputs:
- Verify that the correct function and range are selected for your application.
- Ensure test leads are securely connected and not damaged.
- Check for proper calibration. If issues persist, consider a factory reset (refer to System Settings).
- Screen is unresponsive or frozen:
- Try restarting the device by holding down the power button.
- If the issue persists, allow the battery to fully discharge and then recharge.
8. User Tips
- For precise measurements, always ensure your test leads are in good condition and properly connected.
- Utilize the auto-shutdown feature to conserve battery life during periods of inactivity.
- Familiarize yourself with both measurement and output functions to maximize the utility of your signal generator in various industrial scenarios.
- The Type-C port supports both charging and communication with a host computer, allowing for potential data logging or advanced control (refer to specific software/protocol documentation if available).
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact details provided by your original point of purchase or the manufacturer's official website. Keep your purchase receipt as proof of purchase.
10. Application Scenarios
The VICTOR 72A/72B Signal Generator is adaptable to a wide range of industrial and scientific applications, including but not limited to:
- Scientific Research
- Precision Manufacturing
- Petrochemical & Energy
- Aerospace & Rail Transit
- Power & Energy
