Honeywell Gas Detector | Manning EC-FX-NH3 ...

Honeywell - Gas Detector | Manning EC-FX-NH3

Gas Detector | Manning EC-FX-NH3

The Manning by Honeywell EC-FX ammonia gas detector offers tough sensors that will work in three harsh environments.

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The rugged, longer lasting ammonia sensor are ideal for commercial buildings and other industrial applications, with stability you can count and low cost, the EC-FX-NH3 is the new gold standard in ammonia detection.

Featuring:

Quick response to ammonia concentrations in low parts per million (PPM)
Rugged construction for long-term reliability
ATMOSTM Technology for environmental flexibility
Stainless Steel enclosure with LCD options
New ammonia sensor with a proprietary electrolyte
3 year warranty

The Ammonia sensor/transmitter has been designed for use in industrial refrigeration applications.

The EC-FX-NH3 can provide a linear 4/20 mA or Modbus RS-485 signal input into PLC’s or SCADA systems and can also be used with Honeywell controllers to create a complete gas detection system that includes visual/audible notification and relay outputs to activate ventilation.

Specifications

Operation	In units without the optional LCD module, a group of LEDs are installed to the PCB. In units with the optional LCD, two external push buttons, “Accept” and “Scroll” are used to navigate test functions and operating modes
LCD Display (optional)	2 line by 8 alpha numeric characters and continuous back
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, Modbus RTU protocol
Accuracy	±5% full scale*
Environmental IP Rating	Indoor use, IP 44 in accordance with EN60529:1992
Humidity	5-100% RH (condensing)
Temperature	-45°C to +49°C, ATMOS™ equipped enviro-adaptive technology required for refrigerated areas or outdoors
Sensor Pressure Limit	0-10 PSIG
Storage	-40°C to +80°C, 20 to 80%RH (non condensing)
Communication	4/20 mA output: #18/3 shielded cable (Belden 8770 or equal), cable runs < 1,500 ft. RS-485: for communication cable, use 24 AWG twisted pair, shielded (Belden #9841 or equal), cable runs up to 2,000 ft. For power cable use 14 AWG (Belden #5100UE or equal), cable runs up to 1,000 feet.
Power Source	24 VDC, 0.5 amp max.
Repeatability	<10% of full scale
Sensor Pressure Limit	Atmospheric ±10%
Respnse Time (T90)	<30s for EC-FX-NH3-LR ranges 0-100 ppm, 0-200 ppm, 0-250 ppm and <75s for EC-FX-NH3-HR ranges 0-500 ppm, 0-1000 ppm
Ranges	0-100 ppm, 0-200 ppm, 0-250 ppm , 0-500 ppm, 0-1000 ppm
Sensor Warranty	Three years from date of shipment
Sensor Viability Test	SensorCheck™, an internal microprocessor determines the sensor’s electrical viability every 24 hours. If the viability test fails, a 0.5 mA signal will indicate a fault. An internal light will show if a sensor is dried up or disconnected.
Enclosure	NEMA 1, gasketed, #16 gauge steel (standard). Stainless steel, including modified enclosures for low temperatures, ventilation ducts, etc. are available.
Weight	3 lbs (1.36 kg)

±5% of full scale range at temperature of calibration. Contact HA for additional details.
CAUTION:
EC-FX is designed for operation in a wide range of environments and harsh conditions. However, it is important that exposure to high concentrations of solvent vapors is avoided, both during storage, fitting into instruments, and operation.
EC-FX is designed to be used in safety critical applications. To ensure that the sensor and/or instrument in which it is used, are operating properly, it is a requirement that the function of the device is confirmed by exposure to target gas (bump check). Failure to carry out such tests on a regular basis may jeopardize the safety of people and property.

High Range Sensor Specifications

OPERATING PRINCIPLE	3-electrode electrochemical
MEASUREMENT RANGE	0-500 and 0-1000 PPM NH3
MAXIMUM OVERLOAD	5000 PPM
LOWER DETECTION LIMIT	< 37.5 PPM
FILTER	None
SENSITIVITY	19 ± 3 nA/PPM
RESPONSE TIME (T90)	< 75 s
BASELINE OFFSET (CLEAN AIR)	-37.5 ppm ≤ I0/S ≤ 12.5 ppm
ZERO SHIFT (T = [-40°C; +20°C [OR] +20°C; +50°C)	-37.5 ppm ≤ I0/S ≤ 31.25 ppm
ACCURACY	± 5% full scale*
REPEATABILITY	< 10% of full scale
HOUSING MATERIAL	Polyphenylene Oxide (PPO) Noryl
WEIGHT	4.5 g
ORIENTATION	Vertical only
TYPICAL APPLICATIONS	Industrial refrigeration, cold storage, and engine rooms
OPERATING TEMPERATURE RANGE	Continuous: -4º to 122ºF (sensor only) Storage: -58º to 122ºF (sensor only)
OPERATING PRESSURE RANGE	Atmospheric ± 10%
OPERATING HUMIDITY RANGE	5% to 95% RH non-condensing
MAXIMUM AT 1000 PPM	< 0.14 mA
MAXIMUM O/C VOLTAGE	< 1.2 V
MAXIMUM S/C CURRENT	< 100 mA
LONG TERM OUTPUT DRIFT	< 5% per 6 months
EXPECTED OPERATING LIFE	Cold Storage: 4-5 years in average conditions Engine Room: 3-4 years in average conditions
STORAGE LIFE	6 months in sealed container
STANDARD WARRANTY	Three years from date of shipment

* ±5% of full scale range at temperature of calibration. Contact HA for additional details.

CAUTION:

EC-FX is designed for operation in a wide range of environments and harsh conditions. However, it is important that exposure to high concentrations of solvent vapors is avoided,
both during storage, fitting into instruments, and operation.

EC-FX is designed to be used in safety critical applications. To ensure that the sensor and/or instrument in which it is used, are operating properly, it is a requirement that the function of the
device is confirmed by exposure to target gas (bump check). Failure to carry out such tests on a regular basis may jeopardize the safety of people and property.

PLEASE NOTE: Connection should be made via PCB sockets only. Soldering to pins will render your warranty void.

While every effort has been made to ensure accuracy in this publication, no responsibility can be accepted for errors or omissions. Data may change, as well as legislation, and you are
strongly advised to obtain copies of the most recently issued regulations, standards, and guidelines. This publication is not intended to form the basis of a contract.

To contact Aegis Sales & Service about Honeywell Gas Detector | Manning EC-FX-NH3 use Get a quote.

Featuring:

Quick response to ammonia concentrations in low parts per million (PPM)
Rugged construction for long-term reliability
ATMOSTM Technology for environmental flexibility
Stainless Steel enclosure with LCD options
New ammonia sensor with a proprietary electrolyte
3 year warranty

The Ammonia sensor/transmitter has been designed for use in industrial refrigeration applications.

Specifications

Operation	In units without the optional LCD module, a group of LEDs are installed to the PCB. In units with the optional LCD, two external push buttons, “Accept” and “Scroll” are used to navigate test functions and operating modes
LCD Display (optional)	2 line by 8 alpha numeric characters and continuous back
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, Modbus RTU protocol
Accuracy	±5% full scale*
Environmental IP Rating	Indoor use, IP 44 in accordance with EN60529:1992
Humidity	5-100% RH (condensing)
Temperature	-45°C to +49°C, ATMOS™ equipped enviro-adaptive technology required for refrigerated areas or outdoors
Sensor Pressure Limit	0-10 PSIG
Storage	-40°C to +80°C, 20 to 80%RH (non condensing)
Communication	4/20 mA output: #18/3 shielded cable (Belden 8770 or equal), cable runs < 1,500 ft. RS-485: for communication cable, use 24 AWG twisted pair, shielded (Belden #9841 or equal), cable runs up to 2,000 ft. For power cable use 14 AWG (Belden #5100UE or equal), cable runs up to 1,000 feet.
Power Source	24 VDC, 0.5 amp max.
Repeatability	<10% of full scale
Sensor Pressure Limit	Atmospheric ±10%
Respnse Time (T90)	<30s for EC-FX-NH3-LR ranges 0-100 ppm, 0-200 ppm, 0-250 ppm and <75s for EC-FX-NH3-HR ranges 0-500 ppm, 0-1000 ppm
Ranges	0-100 ppm, 0-200 ppm, 0-250 ppm , 0-500 ppm, 0-1000 ppm
Sensor Warranty	Three years from date of shipment
Sensor Viability Test	SensorCheck™, an internal microprocessor determines the sensor’s electrical viability every 24 hours. If the viability test fails, a 0.5 mA signal will indicate a fault. An internal light will show if a sensor is dried up or disconnected.
Enclosure	NEMA 1, gasketed, #16 gauge steel (standard). Stainless steel, including modified enclosures for low temperatures, ventilation ducts, etc. are available.
Weight	3 lbs (1.36 kg)

High Range Sensor Specifications

OPERATING PRINCIPLE	3-electrode electrochemical
MEASUREMENT RANGE	0-500 and 0-1000 PPM NH3
MAXIMUM OVERLOAD	5000 PPM
LOWER DETECTION LIMIT	< 37.5 PPM
FILTER	None
SENSITIVITY	19 ± 3 nA/PPM
RESPONSE TIME (T90)	< 75 s
BASELINE OFFSET (CLEAN AIR)	-37.5 ppm ≤ I0/S ≤ 12.5 ppm
ZERO SHIFT (T = [-40°C; +20°C [OR] +20°C; +50°C)	-37.5 ppm ≤ I0/S ≤ 31.25 ppm
ACCURACY	± 5% full scale*
REPEATABILITY	< 10% of full scale
HOUSING MATERIAL	Polyphenylene Oxide (PPO) Noryl
WEIGHT	4.5 g
ORIENTATION	Vertical only
TYPICAL APPLICATIONS	Industrial refrigeration, cold storage, and engine rooms
OPERATING TEMPERATURE RANGE	Continuous: -4º to 122ºF (sensor only) Storage: -58º to 122ºF (sensor only)
OPERATING PRESSURE RANGE	Atmospheric ± 10%
OPERATING HUMIDITY RANGE	5% to 95% RH non-condensing
MAXIMUM AT 1000 PPM	< 0.14 mA
MAXIMUM O/C VOLTAGE	< 1.2 V
MAXIMUM S/C CURRENT	< 100 mA
LONG TERM OUTPUT DRIFT	< 5% per 6 months
EXPECTED OPERATING LIFE	Cold Storage: 4-5 years in average conditions Engine Room: 3-4 years in average conditions
STORAGE LIFE	6 months in sealed container
STANDARD WARRANTY	Three years from date of shipment

* ±5% of full scale range at temperature of calibration. Contact HA for additional details.

CAUTION:

PLEASE NOTE: Connection should be made via PCB sockets only. Soldering to pins will render your warranty void.

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To contact Aegis Sales & Service about Honeywell Gas Detector | Manning EC-FX-NH3 use Get a quote.

Spec Sheet(0.24MB)

AI Overview BETA

The Honeywell Manning EC-FX-NH3 is an ammonia gas detector and transmitter that measures low-level ammonia concentrations in parts per million. ATMOS environmental-adaptive technology is required for use in refrigerated areas or outdoors. Cold-storage and engine-room operators can feed its output into PLC or SCADA systems, or use Honeywell controllers to build a complete gas-detection system.

Isolated 4/20 mA or Modbus RTU over RS-485 output
SensorCheck tests sensor viability every 24 hours; failure signals a 0.5 mA fault
Optional LCD: 2 x 8 alphanumeric characters; units without it use PCB-mounted LEDs
Three-year sensor warranty from date of shipment
Stainless-steel enclosures, including modified versions for low temperatures and ventilation ducts, are available

Source: listing by Aegis Sales & Service on IndustrySearch · Updated 3 Nov 2026

AI Overview is generated by artificial intelligence and may contain mistakes.

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