FR SG003A LOOP CALIBRATOR

✅ FR SG003A – Professional Loop Calibrator & Signal Generator (4‑20 mA / 0‑24 V / PWM)

The FR SG003A is a robust multi-functional calibrator designed for field engineers, instrument technicians, and control system specialists. It serves as a loop calibrator, signal generator, and process meter—all in a compact, handheld device.

🔧 Key Features

✅ Current Output/Input
• Active & passive loop support: 0.00 – 24.00 mA with 0.01 mA resolution
• Read and source mA simultaneously
✅ Voltage Modes
• 0.00 – 24.00 V range for sourcing and measuring
✅ Frequency / PWM Output
• 0 – 9999 Hz output, ideal for frequency, PWM, or RPM testing
✅ Stepping / Ramp Functions
• Programmable step/ramp outputs for system simulation
✅ Loop-Powered Output
• Built-in 12 V or 24 V loop power supply for transmitter wiring tests
✅ High-Resolution Backlit Display
• 2.4″ TFT color LCD with 5-digit precision readout
✅ USB & RS485 Connectivity
• Firmware updates via USB, Modbus RTU slave support for PLC integration
✅ Long Battery Life
• 3000 mAh rechargeable battery, approx. 8–10 hours continuous use (26 h standby)

🔧 Technical Specs

📐 Current Output/Input: 0–24 mA, ±(0.1% + 0.005), 0.01 mA resolution
🔋 Voltage Source/Measure: 0–24 V, ±(0.1% + 0.005), 0.01 V resolution
⏱️ Frequency/PWM: 0–9999 Hz, ±2% accuracy, 5-digit resolution
🔧 Max Load: 750 Ω for current source; 30 mA max voltage output
⚡ Loop Power Supply: 12 V / 24 V selectable (max 24 mA)
📱 Dimensions/Weight: ~112 × 82 × 28 mm; ~165 g
🔋 Battery: 3.7 V / 3000 mAh – USB-C recharge

📦 Package Includes

📦 1x FR SG003A Calibrator
🔌 4x Test Leads with Clips
🔌 1x USB-C Charging Cable & Charger
📘 1x User Manual

🧠 Why Choose FR SG003A?

This calibrator is a must-have for loop-powered sensor testing, valve-positioner setup, PLC field calibrations, and inverter system checks. Its programmable ramp and stepping modes simulate real-world signals, while Modbus support and long battery life make it perfect for field use in industrial settings.