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0-24V/0-24mA signal generator - FNIRSI SG-004A
The FNIRSI SG-004A is a mini industrial signal generator designed for testing, calibrating, and diagnosing automation systems. It supports current, voltage, frequency, resistance, and thermocouple signals . It offers accuracy up to ±(0.02% + 0.003), stores up to 100,000 samples, and has a clear 2.4" TFT screen. A built-in 3000 mAh battery and USB Type-C charging ensure portability in the field.
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Product description: Signal generator 0 - 24 V / 0 - 24 mA - FNIRSI SG-004A
The FNIRSI SG-004A is a compact, multifunctional signal generator designed for automation engineers and maintenance technicians. The device generates and measures signals in industry standards – from 0 mA to 24 mA, 0 V to 24 V, 0 Hz to 9999 Hz – as well as mV, resistance, and thermocouple signals . The SG-004A model features a real-time curve function, which allows viewing input and output signal changes in real time and recording measurement history. Modbus protocol support, programmable mode , and the ability to update firmware via USB significantly enhance the device's functionality. Thanks to its compact size and robust ABS housing with silicone protection, the generator is suitable for both workshop and field use.
Signal generator 0 - 24 V / 0 - 24 mA - FNIRSI SG-004A.
The SG-004A fits easily in your pocket or bag.
Main features of the SG-004A generator
- Measurement accuracy : high precision up to ±(0.02% + 0.003) and declared error ≤0.2%
- Wide signal range : Supports 0 mA to 24 mA, 0 V to 24 V, 0 Hz to 9999 Hz, -10 mV to 100 mV, and 0 Ω to 390 Ω
- Signal input and output : the ability to simulate and read industrial signals in one device
- Real-time curve and history : real-time waveform preview and storage of up to 100,000 records or 15 data sets
- Programmable mode : generating rising, falling and cyclic signals
- Modbus communication : cooperation with PLC and DCS systems
- Screen : 2.4'' color TFT LCD with adjustable backlight
- Power supply : 3000 mAh battery and up to 24 hours of standby time
- Charging : USB Type-C, support 5V to 12V / 10W (max)
- Construction : ABS housing with silicone anti-slip protection
Technical parameters of FNIRSI SG-004A
| Signal | Range | Precision | Resolution | Impedance |
|---|---|---|---|---|
| Current (mA) | from 0 mA to 24 mA | ±(0.02%+0.003) | 0.001 mA | 100 ohms |
| Voltage (V) | from 0 V to 24 V | ±(0.02%+0.003) | 0.001 mA | 500 kΩ |
| Passive (XMT) | from 0 mA to 24 mA | ±(0.02%+0.003) | 0.001V | 100 ohms |
| 24V loop | from 0 mA to 24 mA | ±(0.1%+0.005) | 0.01 mA | 100 ohms |
| FRQ (Hz) | from 0 Hz to 9999 Hz | ±2% | 5 digits | 1 MΩ |
| mV | from -10 mV to 100 mV | ±(0.03%+0.03) | 0.01 mV | 2 kΩ |
| TC (TC-S) | from 0°C to 1760°C | ±(0.2%+1) | 1°C | 2 kΩ |
| TC (TC-B) | from 0°C to 1810°C | ±(0.5%+1) | 1°C | 2 kΩ |
| TC (TC-E) | from 0°C to 990°C | ±(0.2%+1) | 1°C | 2 kΩ |
| TC (TC-K) | from 0°C to 1320°C | ±(0.2%+1) | 1°C | 2 kΩ |
| TC (TC-R) | from 0°C to 1760°C | ±(0.3%+1) | 1°C | 2 kΩ |
| TC (TC-J) | from 0°C to 1190°C | ±(0.3%+1) | 1°C | 2 kΩ |
| TC (TC-T) | from 0°C to 390°C | ±(0.2%+1) | 1°C | 2 kΩ |
| TC (TC-N) | from 0°C to 1290°C | ±(0.2%+1) | 1°C | 2 kΩ |
| TC (WRe3/25) | from 0°C to 2320°C | ±(0.2%+1) | 1°C | 2 kΩ |
| TC (WRe5/26) | from 0°C to 2320°C | ±(0.2%+1) | 1°C | 2 kΩ |
| Resistance (Ω) | from 0 Ω to 390 Ω | ±(0.2%+1) | 0.1°C | / |
| Pt100 | from -200°C to 650°C | ±(0.5%+1) | 0.1°C | / |
| Cu50 | from -20°C to 150°C | ±(0.5%+1) | 0.1°C | / |
Technical specifications of the FNIRSI SG-004A mini generator
- Model: SG-004A
- Output signals: Active current 0 mA to 24 mA, passive current 0 mA to 24 mA, voltage 0 V to 24 V, frequency/PWM 0 Hz to 9999 Hz, thermocouple/mV -10 mV to 100 mV, resistance 0 Ω to 390 Ω
- Input signals: current 0 mA to 24 mA, voltage 0 V to 24 V, frequency 0 Hz to 9999 Hz, mV/thermocouple -10 mV to 100 mV, resistance 0 Ω to 400 Ω
- Current and voltage accuracy: ±(0.02% + 0.003)
- Frequency accuracy: ±2%
- Display: TFT LCD 2.4''
- Battery: 3000 mAh
- Charging: USB Type-C 5V to 12V / 10W (max)
- Standby time: up to 24 hours
- Color: black and yellow
- Dimensions: 112 x 82 x 27 mm
- Weight: 165 g
Contents of the set
- 1x FNIRSI SG-004A Signal Generator
- 4 x Crocodile clip
- 1x USB Power Adapter
- 1x USB Type-C cable
- 1x User Manual
Elements included in the set.
Useful links
| Name | Value |
|---|---|
| Width | 15.5 cm |
| Height | 15.5 cm |
| Depth | 9.5 cm |
| Weight | 0.48 kg |
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from €96.75
The full delivery terms are on the page Delivery and payment.
30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
Complaints
If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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Instructions and documents
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