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Operating Instructions

Gas Measuring System

420-C

Summary of Contents for AR420-C

Page 1: ...Read before use Observe all safety instructions Keep for future reference Operating Instructions Gas Measuring System AR420 C...

Page 2: ...cal data 10 2 4 Certification 15 3 Transport and installation 15 3 1 Transport 15 3 2 Storage 15 3 3 Installation 16 3 4 Electrical connection 17 4 Operation 18 4 1 Commissioning 18 4 2 Calibration 19...

Page 3: ...ring system is not approved for operation in areas subject to explosion hazards Do not operate it in any areas where combustible or explosive gas mixtures are likely to occur WARNING These operating i...

Page 4: ...follows DANGER Indicates an imminently hazardous situation which if not avoided will result in death or serious injury This signal word is to be limited to the most extreme situations WARNING Indicate...

Page 5: ...o 21 or 25 vol It is therefore essential that users and operators of the system ensure compliance with the relevant legal regulations e g MAC values In the event of an increased concentration suitable...

Page 6: ...fied there e g temperature limits are adhered to IMPORTANT The gas measuring system is a safety device and must only be repaired by the manufacturer Do not modify the gas measuring system and do not r...

Page 7: ...ns Do not bring into contact with water Before opening the gas measuring system safely disconnect the mains voltage safe electrical isolation Electrical work should only be carried out by a qualified...

Page 8: ...easuring system Any work that is not described in these operating instructions must be executed by the manufacturer 2 Product description 2 1 Design of the gas measuring system The electrochemical EC...

Page 9: ...by means of a specific electrochemical sensor Calibration is carried out by means of a potentiometer using the relevant test gas There is very little or no cross sensitivity to other substances see ap...

Page 10: ...of digital voltmeter potentiometer PZ zero point setting Zero only with three electrode sensor output 4 20 m max burden 500 impedance 1000 Sensor for Ammonia NH3 0 100 ppm gas inlet per diffusion mea...

Page 11: ...me depending on ambient conditions 2 years in air under normal conditions from date of production Sensor for Chlorine Cl2 0 20 ppm gas inlet per diffusion measuring range 0 20 ppm Cl2 measuring princi...

Page 12: ...epending on ambient conditions 2 years in air under normal conditions from date of production Sensor for Carbon Monoxide CO 0 1000 ppm gas inlet per diffusion measuring range 0 1000 ppm CO measuring p...

Page 13: ...econds linearity 0 21 0 02 life time depending on ambient conditions 5 years at 20 C in normal air Sensor for Sulfur Dioxide SO2 0 50 100 ppm gas inlet per diffusion measuring range 0 100 ppm SO2 meas...

Page 14: ...f signal reaction time T90 60 seconds linearity linear life time depending on ambient conditions 2 Jahre in air Sensor for Nitrogen Dioxide NO2 0 20 ppm gas inlet per diffusion measuring range 0 20 pp...

Page 15: ...structions Please check the packaging for any damage when the product is delivered and report any damage immediately to the forwarding agency and dealer Do not throw or drop The gas measuring system m...

Page 16: ...s therefore the device must not be directly exposed to the weather It must not be accessible to dust as this will block the diffusion opening and cause the gas measuring system to make erroneous measu...

Page 17: ...y a qualified electrician Only install in a voltage free state Fig 2 AR420 C connection diagram Left Version with two electrode sensor Right version with three electrode sensor PE potential earth PS p...

Page 18: ...In accordance with existing safety regulations the gas measuring system must only be connected to suitable power supply units that comply with the valid technical regulations It must be ensured that...

Page 19: ...o gas synthetic air to the diffusion opening Three electrode sensor only turn potentiometer PZ see Fig 2 until the voltmeter displays 0 4 V For the other sensors the voltmeter must automatically displ...

Page 20: ...nths by qualified personnel see section 1 4 and a servicing report must be prepared Always ensure that the interval between services meets safety requirements Check the measured values after each peri...

Page 21: ...Measuring system AR420 for substance Measuring range Ammonia NH3 0 to 100 ppm Chlorine Cl2 0 to 10 ppm 0 to 20 ppm Carbon Monoxide CO 0 to 300 ppm 0 to 500 ppm 0 to 1000 ppm Oxygen O2 0 to 25 Vol Sul...

Page 22: ...CO 0 to 300 ppm 0 to 500 ppm 0 t0 1000 ppm Oxygen O2 0 to 25 Vol Sulfur Dioxide SO2 0 to 100 ppm Hydrogen Sulfide H2S 0 to 50 ppm 0 to 100 ppm 0 to 200 ppm Nitrogen Dioxide NO2 0 to 20 ppm 0 to 50 ppm...

Page 23: ...od we will at our discretion repair or replace the device free of charge if found to be defective as to workmanship or material The warranty excludes damages attributable to improper use normal wear a...

Page 24: ...he warranty period in any way The manufacturer accepts no liability for printing errors or any damage resulting therefrom The above information does not extend the conditions of warranty and liability...

Page 25: ...10 3 Dimensions...

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red line AR420-C, Operating Instructions Manual

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