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SCR Systems: Delphi SCR ammonia (NH3) sensor technology ...

Jul 27, 2011· Delphi SCR ammonia (NH3) sensor technology. Due for initial production in 2012, Delphi has developed an ammonia sensor for the automotive industry, which enables more efficient emissions control. The system allows the SCR (read also more here) to work at optimized NOX conversion rates, which in turn improves fuel efficiency.

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Bump Testing Ammonia (NH3) Sensors Critical Environment

Feb 28, 2018· Bump Testing Ammonia (NH3) Sensors 28 February 2018 Bump testing a gas sensor involves flowing a concentration of gas that is slightly higher than the Low alarm setpoint of the gas detector for a short period of time (12 minutes or less). The purpose of a bump test is to confirm that the sensor responds to the presence of gas, the low alarm ...

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Ammonia Gas Sensor | GGNH3 Fixed Gas Detection ...

The GG NH3 uses an ammonia specific electrochemical cell, designed to adapt to any harsh environment from 50°F to +122°F. Circuit board sealed in potting material to protect sensitive sensor components and copper tracing from corrosion. Select from a list of available ranges (0100, 0250, 0300, 0500, 01000ppm NH3).

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GUARD NH3 Ammonia Sensor

The GasGuard NH3 sensor is a +24 VDC, threewire, 4/20 mA sensor for ammonia which utilizes proven electrochemical sensor technology for fast and accurate leak detection. The standard detection range of the GasGuard NH3 provides realtime continuous monitoring of ammonia concentrations accurately down to 5 ppm without false alarms.

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Ammonia (NH3) sensor

Compact, rugged in design and fully serviceable with simple 1button operation. Available sensors: O2, CO, H2S, SO2, COH, PH3, Cl2, NH3 and NO2. Alarms include (3) highly visible, chasing yellow and red alarm LEDs plus vibration. Max, STEL and TWA readings are accessible by pressing the MODE button. Continuous realtime gas readings. Includes datalogging, blackbox recorder and event logger ...

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help with MQ137 NH3 sensor | Forum for Electronics

Sep 01, 2013· Hi, there I am designing NH3 mesuing circuit . I want to use MQ137 sensor , but the aplication of sensor is unclear for me .the first problem is in calibration of sensor .first I must mesure the Rs of sensor in the air .is this resistor Ro ? if yes, why in the Diagram the Rs/Ro is obout 3 ...

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Lesman Instrument Company: Midwest US process control ...

Purging sensor side vol% ppmv hPa abs ja nein yes no psia hPa rel Gas Temperature Gas pressure Dust load O2 Hochdruck (0200°C) O2 high pressure (0200°C) NH3 NH3/H2O HCl HCl/H2O HF HF/H2O CO CO/CO2 CO2 H2O Andere: Other: Ungenutzt No EEx zone Keine EEx Zone ATEX zone 0/20 ATEX zone 1/21 ATEX zone 2/22 Polypropylen Polypropylene 400 mm 800 mm ...

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ECM NH3CAN

ECM’s NH3CAN Module is a CAN output device for the measurement of NH3 in the exhaust of diesel and other lean burn engines. This makes the module useful for SCR system development or to compensate NOx sensors for their NH3 crosssensitivity. NH3CAN uses a ceramic sensor that is mounted in the exhaust of the engine and communicates NH3 via its ...

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Measurement of NH3 Concentrations in Stack Flue Gas Using ...

The ammonia (NH3) gas is injected to remove the NOx and thus reduce the NOx concentration in the stack flue gas. With conventional NH3 analyzers that perform measurements indirectly, NH3 concentrations are obtained through a sampling system. Therefore, there are problems with the maintenance and running costs of the sampling system, and time delays in measurement.

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NH3 3E 100 SE Gas Sensor Module (Ammonia)

NH3 3E 100 SE Gas Sensor Module Ammonia (NH 3) Gas Sensor Module with 420 mA Transmitter Part Number: 75184593230659 Technical Specifications Ammonia (NH 3) 3electrode electrochemical 3100 ppm NH 3 None 420 mA, 2 wire loop powered 40200 mV <20 Seconds <60 Seconds mA <10% of full scale MEASUREMENT

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Ammonia Sensors GGNH32% HIGHRANGE AMMONIA …

the use of the GGNH32% sensor in conjunction with lowrange GGNH3 sensors ensures a secondstage line of defense in the event of a serious ammonia leak. Intended for electrical shutdown, the GGNH32% provides protection against potentially explosive situations. From hot mechanical rooms, to acid washdowns of processing areas, the GGNH32% ...

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Ammonia Sensors GGNH3 AMMONIA SENSOR

The GGNH3 is delivered calibrated and ready to install. Use the model numbers below to specify your factory calibrated range. Keep in mind, each sensor can be field calibrated to any range listed below. GGNH3100 (standard) GGNH3250 GGNH3500 GGNH31000 GGNH3xxxST (stainless enclosure) GGNH3xxxDM (duct mount) GGNH3RC (replacement ...

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