The Manning EC-F9-NH3 sensor is an electrochemical gas sensor/transmitter specifically designed for ammonia detection. It contains valuable, confidential, and proprietary information restricted to Honeywell Inc. The sensor offers high accuracy and reliability, allowing for real-time monitoring of ammonia concentration.
The Manning EC-F9-NH3 is an electrochemical ammonia sensor with 4/20 mA output and optional RS‑485 Modbus communication. It is designed for low‑level ammonia detection in industrial environments, offering ranges from 0‑100 ppm up to 0‑1,000 ppm.
This manual provides system description, installation steps, wiring diagrams, start‑up procedures, troubleshooting, and maintenance instructions, including sensor replacement and Modbus address configuration.
| Measurement Range | 0‑100 ppm (standard), 0‑250 ppm, 0‑500 ppm, 0‑1,000 ppm (high‑range cell) |
|---|---|
| Output | Isolated 4/20 mA, up to 700 Ω at 24 VDC |
| Power Source | 24 VDC (recommended), 0.5 A max; 14‑26 VDC acceptable |
| Operating Temperature | ‑50 °F to +120 °F |
| Response Time | T50 = 10 s, T100 = 1 s for >1 % NH3 |
Use a #18/3 shielded cable (e.g., Belden #8770) with cable runs no longer than 1,500 feet.
The sensor requires at least 16 VDC; 24 VDC is the recommended supply voltage.