The Honeywell NH3 Gas Sensor EC-FX-NH3 is one tough NH3 gas sensor that can work in three harsh environments and comes with a 3 year warranty which is twice the warranty of most sensors. The Honeywell NH3 Gas Sensor EC-FX-NH3 also offers the stability you can count on and low cost you want, and is now the new gold standard in ammonia detection.
If you use ammonia as part of your refrigeration process, you face several challenges in protecting your plant from the danger and expense of ammonia leaks within cold storage, refrigerated process areas and the engine rooms. Introducing a better, tougher, longer-lasting sensor to cover your needs. The Honeywell NH3 Gas Sensor EC-FX-NH3 maintains sensitivity and accuracy — even with rapid changes in temperature and humidity.
Method: Electrochemical (diffusion)
Ranges: 0-100 PPM
Output: Isolated 4/20 mA, 700 ohms max at 24 VDC. Signal output reduces to 0.5 mA to indicate a fault condition.
RS-485 Protocol: MODBUS RTU
Accuracy: ±5% of full scale range at temperature of calibration. Contact Honeywell Analytics for additional details.
Repeatability: <10% of full scale
Response Time (T90): <30 seconds, 90% full scale
Sensor Viability Test: An internal microprocessor determines the sensor’s electrical viability every 24 hours (SensorCheckTM). Should the electrical viability test fail, a 0.5 mA signal will indicate a fault.
A red LED on the circuit board will indicate if a sensor is degraded electrically, depleted of electrolyte or disconnected.
4/20 mA Loop Viability Test: Internal monitoring of 4/20 mA output impedance.
Operating Humidity: 5%-100% RH (condensing). ATMOS equipped® enviro-adaptive technology option required for condensing conditions or refrigerated areas, and all outdoor applications.
Operating Temperatures: -50oF to +120oF (-45ºC to +50ºC). ATMOS® equipped enviro-adaptive technology option required for refrigerated areas or outdoors. 7
Sensor Pressure Limits: Atmospheric ±10%
Power Source: 24 VDC (recommended), 0.5 amp max. 14-26 VDC acceptable.
4/20 output: #18/3 shielded cable (Belden #8770 or equal), cable runs <1,500 feet.
Modbus RTU (RS-485): For communication cable, use 24 AWG twisted pair, shielded (Belden #9841 or equal), cable runs up to 2,000 feet.
Power Cable Recommendations:
For power cable, use 14 AWG (Belden #5100UE or equal), cable runs up to 1,000 feet, for each power supply. Larger power cable and/or additional power supplies may be required for longer cable runs and/or increased number of sensors. Due to variables such as sensor current draw, line loss, and cable size, contact Honeywell Analytics for help with power requirements.
Gas Sampling: Diffusion method is standard.
Enclosure: NEMA 1, gasketed, #16-gauge steel (standard) or stainless steel models are available.
NOTE: The EC-FX is for use in non-classified areas only.
Weight: 3 lbs.
Dimensions: 6″ high x 4″ wide x 3.5″ deep
Warranty: 3 Years
|Honeywell Analytics - Honeywell 301C Controller|
|301-ADI||301-ADI analog digital input converter (4-20mA to Modbus RS-485)|
|301-AP||301AP annunciator panel for 301C Controller|
|301-C-DLC-BIP||301C Controller with datalogger, BACnet/IP output, plastic enclosure|
|301-C-DLC||301C Controller with datalogger, plastic enclosure|
|301-C||301C Controller, plastic enclosure|
|301-R8-FS||301-R8 relay module with 8 relays, failsafe|
|301-R8||301-R8 relay module with 8 relays|
|420-I||420I digital analog output converter, Modbus RS-485 to 4-20mA|
For nearly 50 years, Honeywell Analytics has been protecting people who put their lives on the line every day. It takes a special level of drive and dedication to work in hostile environments, and we believe your workers deserve the same kind of commitment from us when it comes to securing their health and safety. Right from the start, our founders were determined to find better ways to design, build and manufacture reliable gas detection solutions. Through advanced technology and pure industry know-how, Honeywell Analytics continues to improve and evolve our products. Today, we’re proud to partner with customers worldwide who share our vision of vigilance and rely on us to help them protect what matters most. From custom-designed solutions to unmatched training and support, Honeywell Analytics is simply the smartest choice when you demand the best in safety.