Test & Measuring
FNIRSI SG-004A Multi-functional Signal Generator
- $260.00
✦ The signal generator is suitable for a variety of working conditions, and can perform PLC system debugging, DSC system debugging simulation, valve positioner adjustment, instrument testing and calibration, and inverter testing.
✦ Real-time curve display, you can display the change trend of input and output signals through the curve, can record up to 100,000 or 15 sets of data, the frequency of input and output is 0-9999HZ, 0.2% high-precision test.
✦ High-definition color screen backlight display, 2.4-inch TFT-LCD , with backlight for clear reading, the color of the button backlight will be different in different modes.
✦ Programmable Output: Automatically adjust output size based on parameters, offering monotonic increasing, monotonic decreasing, or cyclic modes.
✦ Firmware Upgrade: Easily update firmware using USB emulation, akin to a USB flash drive.
✦ Only the size of a palm, light and portable, you can put it in your backpack at any time ,long-term standby power, built-in 3000mah lithium battery, can standby for a long time for 24 hours, the top right of the screen can display the remaining power, suitable for Type C The charging port is convenient to carry out.
✦ The fuselage is made of ABS hard shell, and the product is surrounded by an integrated non-slip silicone, so the product is not easy to be broken.
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Models: FNIRSI SG-004A Multi-functional Signal Generator
Included Accessories:
- Alligator Test Clips x 4
- USB Charger x 1
- 004A Signal Generator x 1
- User Manual x 1
- Type-C Cable x 1
- Packing Box x 1












Basic Specification:
| Brand | FNIRSI | Model | SG-004A |
| Screen | 2.4"TFT Full Color HD display | Product Size | 1.18x0.79x0.39'' |
| Product Weight | 0.050 kg / 1.76 ounces | Battery | 3000mAh rechargeable lithium battery |
| Charging Type | USB-C port (5V-12V) | Charging | 0-24V |
Output Signal:
| Active Current | 0-24mA | Passive Current | 0-24mA |
| Voltage | 0-24V | Frequency / PWM | 0-9999Hz |
| 24V Loop | 0-24mA | Thermocouple | -10~100mV |
| Resistance / Thermal Resistance | 0-390Ω | ||
Input Signal:
| Brand | 0-24mA | Voltage | 0-24V |
| Frequency / PWM | 0-9999Hz | Thermocouple | -10~100mV |
| Resistance / Thermal Resistance | 0-400Ω | ||
Extended Function:
- Program automatic lift output
- Signal linear conversion output
- History record
- Modbus slave
- Preset output
- Real-time curve
- Output timing
- USB Emulated U Disk Firmware Upgrade
Technical Parameter:
| Current (mA) | Range: 0~24mA | Voltage (V) | Range: 0~24V |
| Passive (XMT) | Range: 0~24mA | 24V Loop | Range: 0~24mA |
| Frequency (Hz) | Range: 0~9999Hz | Millivolt (mV) | Range: -10~100mV |
| Thermocouple (TC-S) | Range: 0~1760℃ | Thermocouple (TC-B) | Range: 0~1810℃ |
| Thermocouple (TC-E) | Range: 0~990℃ | Thermocouple (TC-K) | Range: 0~1320℃ |
| Thermocouple (TC-R) | Range: 0~1760℃ | Thermocouple (TC-J) | Range: 0~1190℃ |
| Thermocouple (TC-T) | Range: 0~390℃ | Thermocouple (TC-N) | Range: 0~1290℃ |
| Thermocouple (WRe3/25) | Range: 0~2320℃ | Thermocouple (WRe3/26) | Range: 0~2320℃ |
| Resistance (ohm) | Range: 0~390Ω | Pt100 | Range: -200~650℃ |
| Cu50 | Range: -20~150℃ | ||