FNIRSI SG-002 multifunction signal generator

FNIRSI SG-002 Multifunctional Signal Generator

The FNIRSI SG-002 is a fully professional, multi-function voltage and current signal generator designed for testing, diagnostics, and commissioning automation systems. It supports ±12 V and 0-24 mA signals, operates in active and passive modes, works with 2-, 3-, and 4-wire systems, and offers high accuracy after calibration (up to 0.05 V / 0.05 mA). With its compact dimensions of 89 × 69 × 28 mm, the FNIRSI SG-002 is a truly portable signal source. It is a tool that effectively replaces multiple devices and provides full control over the signal in any conditions.

Full compatibility with automation and PLC

The generator was designed with real-world industrial installations in mind. It seamlessly interfaces with PLCs, inverters, proportional valves, transducers, and control systems. Support for both active and passive outputs allows you to test virtually any type of analog input—without the need for complexities, additional resistors, or external power supplies.

Universal voltage ranges – exactly what you need

FNIRSI SG-002 offers a wide range of voltage modes: ±12 V, ±5 V, 0–10 V, 2–10 V, 0–5 V, 1–5 V, 0–3.3 V, 0–2.5 V, 0–1 V and –10–0 V. This means that one device is sufficient for testing both classic industrial installations and modern electronics or low-voltage control systems.

Precise current generation up to 24 mA

The current output covers a range of 0-24 mA and supports the popular 0-20 mA and 4-20 mA standards. High stability and accuracy after calibration make the generator ideal for sensor simulation, analog input calibration, and measurement chain verification – even with loads up to 500 Ω.

Coarse and fine adjustments – full control over detail

The rotary encoder offers both coarse and fine adjustment modes. This allows you to quickly set an approximate value and then fine-tune it with high precision. One turn of the knob generates 30 pulses, resulting in very smooth and predictable adjustments – ideal for both quick tests and precise calibration.

Clear display and flexible presentation modes

The 4-digit LED display offers 8-level brightness adjustment and various data presentation modes: actual value, percentage, and special modes. This makes reading parameters quick and clear – regardless of lighting conditions or the nature of the work.

Settings memory and quick exit points

The generator allows you to save set voltage or current values, which are automatically restored upon restart. Additionally, a quick output point function allows you to save several predefined signal levels. This is a huge time-saver during serial testing and repetitive service procedures.

Three Power Methods – Ready to Work Anywhere

FNIRSI SG-002 can be powered from an external DC 15-30 V source (e.g. from a 24 V PLC installation), via micro USB 5 V or from a built-in 1100 mAh / 3.7 V lithium battery. The device can operate while charging, which ensures full independence in the field and in control cabinets.

Safe connection and logical terminal structure

Detachable terminal blocks enable quick and reliable connection of voltage and current signals. A well-thought-out terminal layout facilitates correct connection in active and passive modes and minimizes the risk of errors when working in industrial installations.

Included:

• FNIRSI SG-002 Signal Generator
• Detachable Terminal Block
• USB Cable (Micro USB)
• User Manual

Product safety information Manufacturer information