Description

The FNIRSI SG-003A is a compact, high-precision portable process signal generator designed for commissioning and troubleshooting industrial PLC systems, process instrumentation, transmitters, and electric valves. It outputs adjustable current (0–24mA active/passive), voltage (0–24V), and PWM signals, while simultaneously accepting current and voltage inputs for signal conversion — all from a pocket-sized device powered by a 3000mAh rechargeable battery. For instrumentation engineers, automation technicians, and industrial maintenance teams across Pakistan’s factories, power plants, and process industries in Karachi and beyond, the SG-003A is an indispensable daily field tool that replaces expensive benchtop calibrators at a fraction of the cost.

Why Choose the FNIRSI SG-003A?

Pakistan’s industrial sector — from Karachi’s textile mills to Faisalabad’s processing plants — relies heavily on 4–20mA loop-powered instrumentation. The SG-003A lets field technicians simulate, source, and convert these signals on the spot without dragging benchtop equipment to site. With 26-hour battery life, RS485 Modbus communication, real-time curve display, and 4 preset output groups, it’s built for professionals who need fast, reliable signal simulation in the field every day.

FEATURES

• Outputs active current (0–24mA), passive current (0–24mA), voltage (0–24V), and PWM (0–9999Hz) signals
• Accepts current input (0–24mA) and voltage input (0–30V) for signal conversion
• Displays signals as physical or engineering values with linear correspondence (e.g. 4mA = 0%, 20mA = 100%)
• Real-time curve display for monitoring input/output signal trends with adjustable sampling rate
• 4 preset output groups for fast field switching between common signal values
• Automatic ramp output: single rise, single fall, and cyclic modes with adjustable step parameters
• Signal linear conversion: voltage-to-current (active/passive), current-to-voltage modes
• Custom output range: upper and lower limits freely configurable
• PWM output with independently adjustable frequency and duty cycle
• RS485 Modbus slave communication for PLC/SCADA integration
• USB firmware upgrade support via emulated U-disk
• Adjustable button backlight + 2.4″ TFT color LCD (240×320) for day and night use
• 3000mAh Li-ion battery; up to 26 hours standby, 8–10 hours with 20mA continuous output
• Type-C (5V) charging; compact size 82×27×112mm, weighs only 165g

SPECIFICATIONS

Active Current Output:

• Range: 0–24mA | Resolution: 0.01mA | Accuracy: ±(0.1%+0.005) | Max Load: 750Ω

Passive Current Output:

• Range: 0–24mA | Resolution: 0.01mA | Accuracy: ±(0.1%+0.005) | External Supply: 0–30V

Voltage Output:

• Range: 0–24V | Resolution: 0.01V | Accuracy: ±(0.1%+0.005)

24V Loop:

• Range: 0–24mA | Resolution: 0.01mA | Accuracy: ±(0.1%+0.005)

Frequency / PWM Output:

• Range: 0–9999Hz | Resolution: 5 digits | Accuracy: ±2%

Current Input:

• Range: 0–24mA | Resolution: 0.01mA | Accuracy: ±(0.1%+0.005)

Voltage Input:

• Range: 0–30V | Resolution: 0.01V | Accuracy: ±(0.1%+0.005)

General:

• Display: 2.4″ TFT color LCD, 240×320
• Battery: 3.7V 3000mAh Li-ion; standby up to 26H
• Charging: Type-C (5V)
• Communication: RS485 Modbus Slave
• Dimensions: 82 × 27 × 112mm
• Weight: 165g
• Warranty: 2 years; 30-day return guarantee