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INSTRUCTION 
MANUAL 

 

Gas detector 

DEGA NB III LCD 

 
 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

 

 

Reproduction of this manual or any part thereof, in any form, without the prior permission of DEGA.CZ s.r.o. is 
prohibited 

DEGA CZ s.r.o. reserves the right to alter the specifications of the hardware and software described in this manual at 
any time and without prior notice 

DEGA CZ s.r.o. bears no liability for any damage resulting from use of this device 

Summary of Contents for DEGA NBx-EL III LCD

Page 1: ...ny form without the prior permission of DEGA CZ s r o is prohibited DEGA CZ s r o reserves the right to alter the specifications of the hardware and software described in this manual at any time and without prior notice DEGA CZ s r o bears no liability for any damage resulting from use of this device ...

Page 2: ... 2 Detectors with an electrochemical sensor NBx EL III LCD 13 3 Detectors with an infrared sensor NBx IL III LCD 15 4 Detectors with a semiconductor sensor NBx SL III LCD 15 5 Detectors with a PID sensor NBx PID III LCD 15 Add on modules 16 Attachments 16 Table of error codes 16 General warranty terms and conditions 17 For your safety The detector must be mounted with the sensor module downwards T...

Page 3: ...alibration and operational and functional checks only at certified service centers with a valid certificate of competence or at the manufacturer Warning The detector automatically checks it s calibration period the period of validity of it s calibration After 12 months since the last calibration max calibration period the detector will transmit this fact to the host system The detector must be cal...

Page 4: ...ure and the presence of a catalyst These sensors can be used to detect a broad range of flammable gases The sensors are characterized by fast response long lifetime and high stability A minimum of 10 of Oxygen in the air is required for their proper function DEGA NBx IL III LCD with an infrared sensor NDIR Top quality scanning method They operate on the principle of infrared spectroscopy The senso...

Page 5: ...tector The detector consists of four parts the body of the detector the removable sensor and bushings Detector assembly procedure is to be performed in the following steps a Disassemble the detector using four hexagon socket 3 mm screws b Use a screwdriver to break out holes for the bushings c Mount the detector on a flat surface using three 6 mm fasteners in a height above the floor with the gas ...

Page 6: ... gas in the atmosphere 3 Malfunction In case of malfunction the LCD screen displays the measured concentration an error code and a key symbol On the PCB this condition is indicated by the yellow ERR LED The meaning of each error code is explained in Attachment 2 4 Monitoring the calibration periods The detector continuously checks the calibration validity of the connected sensor After 12 months fr...

Page 7: ...BACK move backwards in the menu reducing the value FRONT move forwards in the menu increasing the value ENTER confirm enter the menu Placing a magnet into the indent for 5 s activates the magnetic control which is displayed by the icon on the LCD Reaching level 4 alarm in case of catalytic and semiconductor sensors causes a ratchet phenomenon where even after recovery from gas leak the detector is...

Page 8: ...centration in the past 12 hours Displays the highest measured concentration and alarm for the past 12 hours Return to History menu Highest concentration in the past 12 hours Displays the highest measured concentration and alarm for the past 24 hours Return to History menu Highest concentration stored in the memory Displays the highest measured concentration and alarm that is stored in the memory R...

Page 9: ...l 2 Alarm level 3 Displays alarm level 3 Alarm level 4 Displays alarm level 4 8 Settings menu SET Protected by password 0004 After entering a wrong password the detector returns to measurement mode The password can be changed in the menu SET PSWD Menu Display Description Calibration Sensor calibration Setting the alarms Setting the alarms Changing the password Changing the password Setting the yea...

Page 10: ...ave settings or NO return to the Settings menu Confirm the selected option Setting the range of the 20mA current loop a Using select the concentration appropriate to 20mA range Confirm b Using switch between YES save settings or NO return to the Settings menu Confirm the selected option Changing the password a Using select a number in thousands Save the selected number b Using select a number in h...

Page 11: ...cause incorrect indication of the measured value Each sensing technology is suited for different methods of application as described below All sensors are characterized by a smaller or larger cross sensitivity to other gases than those which they are set for Therefore we recommend to have the air in the deployment area of the detection system analyzed before processing project documentation a cata...

Page 12: ...x per 6 months carry out a calibration and functional control adjust the sensitivity of the sensor using calibration gas and check the functionality of the system The exact interval depends on the purity of the environment required accuracy and the occurrence of disturbing gases in the atmosphere b 1 x per 12 months carry out a calibration adjust the sensitivity of the sensor using calibration gas...

Page 13: ...50 ppm 20100151 DEGA NBO2 EL 30 III LCD Oxygen O2 0 1 0 1 0 01 Air 20100152 DEGA NBO2 EL T30 III LCD Oxygen O2 0 100 0 30 0 1 Air 20100153 DEGA NBO2 EL T100 III LCD Oxygen O2 0 100 0 30 0 1 Air 20100155 DEGA NBO3 EL 5 III LCD Ozone O3 0 5 ppm 0 0 2ppm 0 01ppm Chlorine 5 ppm 20100154 DEGA NBO3 EL 100 III LCD Ozone O3 0 100 ppm 0 100 ppm 0 1ppm Chlorine 5 ppm 20100135 DEGA NBHCL EL 20 III LCD Hydrog...

Page 14: ...ogen H2 0 1000 ppm 0 400 ppm 1ppm Hydrogen 1000 ppm 20100125 DEGA NBH EL 40000 III LCD Hydrogen H2 0 40000 ppm 0 4000 ppm 1ppm Hydrogen 1000 ppm 20100126 DEGA NBH EL 400000 III LCD Hydrogen H2 0 400000 ppm 0 100 LEL 0 1 Hydrogen 0 8 vol 20100137 DEGA NBHCN EL 50 III LCD Hydrogen cyanide HCN 0 50 ppm 0 50 ppm 1 ppm Hydrogen sulfide 1 ppm 20100159 DEGA NBPH3 EL 5 III LCD Phosphine PH3 0 5 ppm 0 0 2 ...

Page 15: ... N2O 0 1 LEL 0 0 5 LEL 0 01 Nitrous oxide 0 5 LEL 20100186 DEGA NBC5H12 IL 100 III LCD Pentane C5H12 0 100 LEL 0 20 LEL 0 1 Pentane 20 LEL 20100185 DEGA NBC3H6 IL 100 III LCD Propylene C3H6 0 100 LEL 0 20 LEL 0 1 Propylene 20 LEL 20100178 DEGA NBHC IL 100 III LCD Other flammable and combustible gases and vapors according to the selectivity of the sensor 0 100 LEL 0 20 LEL 0 1 Hexane 0 18 LEL 4 Det...

Page 16: ...connected sensor Checking the configuration of the sensor required 7 Reserved Reserved 8 EL sensor test error Sensor error 9 Detector is in preheating mode Wait a few minutes the detector will automatically enter measurement mode 10 Reserved 11 reserved 12 Error reading the internal FLASH Restart the detector If the error persists contact the manufacturer 13 Error reading the internal FLASH Restar...

Page 17: ...e replaced 616 paragraph 4 of the Commercial Code 6 The buyer who exercises the right of warranty repair is not entitled to the return of the parts that have been replaced 7 The warranty period can be extended for up to 48 months and its validity can be extended beyond the standard length on the basis of the conclusion of an individual warranty contract Further information may be obtained through ...

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