The GF Signet 3-9900-1P is a SmartPro® Panel Mount Transmitter designed for versatile monitoring and control of flow, pH/ORP, conductivity, pressure, and other process variables. It features a large backlit display and supports both digital and analog inputs.

Key Specifications

• Model: 3-9900-1P
• Mounting Style: Panel mount (¼ DIN, 96 x 96 mm)
• Display: Extra-large auto-sensing backlit LCD with dial-type bar graph and customizable 13-character labels
• Power Supply: 12 to 32 VDC (nominal 24 VDC)
• Enclosure Rating: IP65 / NEMA 4X (front panel)

Input & Output Capabilities

• Sensor Inputs:
  • GF Signet digital (S3L) sensors
  • 4–20 mA analog signals (with optional 8058 Signal Converter)
• Outputs:
  • One 4–20 mA output
  • Optional field-upgradable relay modules
• Error Mode: Selectable current output error mode (3.6 mA or 22 mA)
• Warning LED Indicator: Alerts for system faults or alarms