EC-F9-NH₃
With SensorCheck™

The new EC-F9-NH₃ gas sensor with SensorCheck™ (shown with optional LCD display) features the industry-leading performance of Manning Systems electrochemical gas detection technology and adds a built-in system to monitor and predict the sensor's electrical viability.

Manning Systems EC-F9-NH₃, unlike many other ammonia sensors, is a gas diffusion unit with linear output that exhibits excellent zero and calibration stability over long periods of time. Simplified, in-place calibration and cell replacement eliminate maintenance downtime.

The EC-F9-NH₃ offers an LCD display option that will indicate ppm gas concentration during normal operation and show sensor operation status for changes in operating mode, calibration procedures and troubleshooting. Two external pushbuttons ("Accept" and "Scroll") are used to navigate test functions and operating modes. An internal pushbutton and group of LED's are also installed on the PCB to be used in the absence of the LCD module.

The revolutionary new SensorCheck™ technology monitors Manning Systems EC-F9-NH3 ammonia sensor by testing it every 24 hours for electrical viability. If a sensor dries up or is disconnected, SensorCheck™ sends an indication that can be detected by a Manning Systems Gas Monitor or a PLC.

ATMOS equipped^® ammonia sensors with SensorCheck™ can adapt to the harshest conditions and also be monitored for electrical viability. The EC-F9-NH₃ will often operate for 3 - 4 years (in refrigerated environments) between cell replacement. Cells are inexpensive and easy to replace and maintain.

General Description

The EC-F9-NH₃ sensor consists of a pair of polarized electrodes isolated from the ambient air by a gas permeable membrane. As ammonia diffuses into the sensor, a redox reaction occurs, generating a current linearly proportional to ammonia gas concentration.

Unlike many other NH₃ sensors, this gas diffusion detector exhibits excellent zero and calibration stability over long periods of time. EC cells often last 3-4 years in the refrigerated environments of food processing and storage warehouses.

Use #18/3 shielded cable (Belden #8770) for wiring runs up to 1500'.

Monitor one to 96 sensors from a single controller

All Manning Systems sensors can be monitored by the GM-1 single channel gas monitor or the GM-10 or GM-4 multi-channel gas safety systems that provide an individual bargraph display of gas concentration for each channel, plus relay outputs for emergency response and ventilation control.

The new AirAlert™ 96d multi-channel gas monitoring system adds addressable RS-485 Modbus communication protocol to the broad line of Manning Systems readout/alarm units. A total of 96 gas sensors and relay modules can be linked to a single controller.

The redundancy provided by a Manning Primary Safety System (MPSS) gives an extra measure of gas monitoring protection and peace of mind. In addition, The EC-F9-NH₃ can provide direct input into PLCs and computer control systems which accept a linear 4/20 mA signal either directly from the sensor or from Manning Systems GM-10, GM-4 and GM-1 stand-alone alarm consoles with relay or analog output.

Download brochure or contact Manning Systems for complete specifications.