4-20mA 0-10V 0-5V Signal Generator Rechargeable PLC VFD Loop Simulator Tester

🔧 4-20mA 0-10V 0-5V Signal Generator | AuscomTech

The QH-VISG2-ED/EN is a rechargeable pocket analogue signal generator designed for testing, commissioning and troubleshooting PLCs, VFDs, process controllers, valves and industrial instrumentation.

It generates adjustable voltage and current signals for common 0–5V, 0–10V and 4–20mA control applications. The full hardware output ranges are DC ±10V and 0–22mA, with fine 0.01V and 0.01mA adjustment.

The included rechargeable battery makes it convenient for portable field testing without a continuously connected power supply. This newer QH-VISG2-ED/EN model replaces the JS-VIGS-M-S.

⭐ Key Features

• 4–20mA Loop Simulation – Generates standard industrial current signals within its adjustable 0–22mA output range.
• 0–5V & 0–10V Testing – Suitable for common analogue voltage control and input testing applications.
• PLC & VFD Testing – Simulates analogue signals for commissioning, diagnostics and control-input testing.
• Fine Signal Adjustment – 0.01V voltage and 0.01mA current adjustment precision.
• Rechargeable Battery – Included internal rechargeable battery provides convenient portable operation.
• Active & Passive Current Connections – Supports current signal output and passive current-loop connection arrangements.
• Digital Display – Provides clear indication of the selected operating value and mode.
• Rotary Encoder – Large aluminium-alloy knob provides convenient signal adjustment.
• Calibration Support – Voltage and current outputs can be calibrated.
• Flexible Power Options – Operates from its battery, Micro USB 5V or external DC 15–30V supply.

📊 Technical Specifications

• Model: QH-VISG2-ED/EN
• Replaces: JS-VIGS-M-S
• Voltage Output Range: DC ±10V
• Common Voltage Signals: 0–5V and 0–10V
• Voltage Adjustment Precision: 0.01V
• Current Output Range: 0–22mA
• Common Current Signal: 4–20mA
• Current Adjustment Precision: 0.01mA
• Battery: Rechargeable internal battery included
• USB Power Input: Micro USB 5V
• External Power Input: DC 15–30V
• Display Modes: Voltage, current, 0–100% and 0–50Hz
• Control: Rotary encoder and mode button
• Dimensions: Approx. 100 × 60 × 20mm

🧩 Typical Applications

• 4–20mA process current-loop testing
• 0–5V and 0–10V analogue input simulation
• PLC analogue input commissioning
• VFD speed-reference input testing
• Control valve and actuator testing
• Industrial instrumentation diagnostics
• Sensor signal substitution
• Automation maintenance and field troubleshooting

⚠️ Important Notes

• The full voltage output range is DC ±10V, which covers common 0–5V and 0–10V applications.
• The full current output range is 0–22mA, which covers standard 4–20mA applications.
• A rechargeable battery is included with this AuscomTech version.
• For passive current-loop operation, follow the correct AI+ and AIO terminal connections and external supply requirements.
• The 0–50Hz function is specified as a display mode; a separate frequency waveform output is not confirmed by the available specifications.
• Check polarity, terminal functions and equipment input requirements before connection.

📦 Package Includes

• 1 × QH-VISG2-ED/EN Signal Generator
• 1 × Rechargeable Battery
• 1 × Micro USB Cable
• 4 × Alligator Clips
• 4 × Yellow Insulating Covers
• 4 × Blue Wire Ferrules
• 1 × Screwdriver

🔗 Recommended Accessories (Not Included)

• 24V DC Power Supply – for external power and passive current-loop testing
• Digital Multimeter – for independent voltage and current verification
• Test Leads – for connection to industrial control and instrumentation terminals