VigorTree VT-SG1224 Process Signal Generator – ±12V Voltage & 0–24mA (4–20mA) Current Output, 1.69" Color TFT, RS485 Modbus, USB-C

VigorTree VT-SG1224 is a palm-sized process signal generator that outputs a precise ±12 V voltage or 0–24 mA current signal (including the standard 4–20 mA loop range) to test and calibrate PLC analog inputs, transmitters, panel meters, VFDs and actuators. Output is set in 0.01 V / 0.01 mA steps with ±0.03 V / ±0.05 mA precision.

A 1.69-inch color TFT shows the live output, start/end values and timing at a glance. Beyond fixed output, it can run programmed ramps and multi-segment curves, and it can be controlled from a PLC over RS485 Modbus RTU or from the VigorTree PC software. It runs from USB-C power, so a power bank or laptop is enough on site.

Key Features

• ⚡ Voltage and current in one unit – ±12 V in 10 ranges (incl. 0–10 V, 0–5 V, 0–3.3 V) and 0–24 mA in 4 ranges (incl. 4–20 mA)
• 📏 Factory calibrated – 0.01 V / 0.01 mA resolution with ±0.03 V / ±0.05 mA accuracy; multi-point recalibration from the PC software
• 🔁 3 output modes – Normal (actual / percent / custom value), Quick (up to 9 preset points, switched with the dial) and Curve
• 📈 Curve mode – up to 20 segments with start, end and duration each; run continuously, 1–99 cycles, or once
• 🔧 RS485 Modbus RTU slave – address 1–247, 4800–115200 baud, for PLC, HMI and SCADA control
• 💻 VigorTree Studio PC software – live charts, curve table editing, calibration and firmware updates (Windows / macOS / Linux)
• 🖥️ 1.69" color TFT (320 × 240) – output value, range and running segment in real time; 3 brightness levels
• 🎛️ One-hand control – flick the SET dial to select/adjust, press to confirm, OK button switches output on/off
• 🔌 Pluggable 8-pin terminal – pin names printed on the plug; powered from DC 5–30 V terminal or 5 V USB-C
• 🔋 Smaller than a bank card – 58.7 × 50.6 × 19 mm, about 150 g

Technical Specifications

Brand / Model	VigorTree VT-SG1224
Voltage output	−12 to +12 V, 10 ranges (−12~12, −10~10, −5~5, 0~12, 0~10, 0~5, 0~3.3, 2~12, 4~10, −12~0 V)
Voltage resolution / accuracy	0.01 V / ±0.03 V
Current output	0–24 mA, 4 ranges (0~24, 0~22, 0~20, 4~20 mA)
Current resolution / accuracy	0.01 mA / ±0.05 mA
Current load	≤ 500 Ω
Current loop modes	Active output, or passive mode with external 24 V
Output modes	Normal / Quick (9 points) / Curve (20 segments, 1–99 cycles)
Display	1.69-inch color TFT, 320 × 240
Controls	SET dial + output switch
UI languages	English / Simplified Chinese / Traditional Chinese
Communication	RS485, Modbus RTU slave; address 1–247; 4800, 9600, 38400, 57600, 115200 bps; 8-N-1, CRC16
PC software	VigorTree Studio (Windows / macOS / Linux)
Terminal	8-pin pluggable: V+, GND (power), IO (current out), I+ (24 V in, passive), GND (signal), VO (voltage out), 485A, 485B
Power supply	DC 5–30 V via terminal, or 5 V via USB-C (use one source at a time)
Dimensions	58.7 × 50.6 × 19 mm (incl. connectors)
Weight	Approx. 150 g
Certifications	CE, FCC, RoHS

What's in the Box

• VigorTree VT-SG1224 signal generator × 1
• 8-pin terminal plug × 1
• Quick guide card × 1
• QC certificate × 1

Product Details