ExTox NH3-20-IS Instruction Manual Download Page 1 | Manualshive

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Instruction Manual

E

x

T

ox Transmitter

NH3-20-IS

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Summary of Contents for NH3-20-IS

Page 1: ...Instruction Manual ExTox Transmitter NH3 20 IS...

Page 2: ...e follows ISO 9001 and our Production Monitoring is to keep the European Directives 2014 34 EU ATEX With the transmitter NH3 20 IS you profit of the high reliability due to modern sensor tech niques a...

Page 3: ...ng Mode 8 5 2 Configuration Maintenance 8 5 3 Alarm 8 5 4 Faults 8 6 Adjustment 9 6 1 Manual Adjustment without Calibration 9 6 2 Adjustment with Calibration 10 7 Installation and Initial Operation 12...

Page 4: ...operation of the control unit We kindly ask you to pay attention to all details and cross references We kindly ask you not to repair the transmitter or to perform any changes which go beyond the meas...

Page 5: ...performed by this system Due to this the indicated ppm values are of minor importance Just a very small ammonia leakage will lead to an over scale of measuring range Indication 20 ppm and triggering...

Page 6: ...els service mode the following steps are necessary Keep Keys and CR pressed at the same time for minimum 1 s Release the keys Keep key pressed for minimum 1 s Release the key After successful release...

Page 7: ...s always indicated in a range to 99 9 in the display of the control unit ET F Standard setting 20 0 ppm Measuring Voltage Zero Point UL See Adjustment see 6 Concentration of Test Solution Sensitivity...

Page 8: ...for analytical purposes is not intended Due to the very high detection sensitivity of the ionic selective measurement any entry of ammonia into the measuring medium will generally cause a very quick...

Page 9: ...key MODE as often until UL xxxx xxxx Measured value is indicated 3 Note the indicated value typically between 1900 and 2400 4 In case one or more of the following states are recognized it has to be ch...

Page 10: ...mple by laying a clean paper underneath Zero Point Position Leave the input level Service Mode see 4 1 and select the menu item Measurement Voltage Zero Point UL The shown value indicates the measurin...

Page 11: ...it until a stable measured value is set In case the value is different from zero correct the setting by using the arrow keys The sensitivity set before is not influenced by this Finish The transmitter...

Page 12: ...e actual operating conditions may lead to malfunctions In this case please contact ExTox to clarify the case and to adjust the transmit ter if necessary The same is valid for permanent change of the o...

Page 13: ...hrough suitable areas in tubular cable protection or on cable platforms 7 3 Initial Operation After termination of the installation work the transmitter can be put into operation This is done automati...

Page 14: ...aintenance comprises inspection calibration and ad justment as well as functional test of the complete system Most important is the testing of the connected transmitters Control of the gas detection s...

Page 15: ...ave to be checked 8 3 Functional Check The functional check also comprises calibration and adjustment In case of combination with sampling systems their correct function has also to be checked It is n...

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