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4 

Gb 

- type of protection according to EPL 

Tamb 

- operating temperature range

 

 

Dimensions without bushings: 

 

150x170x65 mm (WxHxD) 

Weight: 

 

 

 

 

2,1 kg 

Capacity of the internal memory of history: 44 days at 60s recording interval 

Interval record storage memory:    

60 s (adjustable range 1-255 s) 

Dead band:   

 

 

 

max 5% of range 

 

Consumption/input at 24V (output RS485) 

Warm-Up time 

DEGA NSx-EL III LCD   90 mA/2,2 W 

DEGA NSx-EL III LCD   max. 180 s 

DEGA NSx-CL III LCD   135 mA/3,3 W 

DEGA NSx-CL III LCD   max. 30 s 

DEGA NSx-IL III LCD   115 mA/2,8 W 

DEGA NSx-IL III LCD   max. 15 s 

DEGA NSx-SL III LCD   135 mA/3,3 W 

DEGA NSx-SL III LCD   max. 180 s 

DEGA NSx-PL III LCD  154 mA/3,4 W 

DEGA NSx-PL III LCD  max. 30 s 

Consumption/input at 24V (output 4-20mA) 

Time to stabilize (>5day without power) 

 

 

DEGA NSx-EL III LCD   110 mA/2,7 W 

DEGA NSx-EL III LCD   Up to several hours - based on sensor type 

DEGA NSx-CL III LCD   155 mA/3,7 W 

DEGA NSx-CL III LCD   max. 1 h 

DEGA NSx-IL III LCD   135 mA/3,3 W 

DEGA NSx-IL III LCD   max. 30 min 

DEGA NSx-SL III LCD   155 mA/3,7 W 

DEGA NSx-SL III LCD   max. 5 h 

DEGA NSx-PL III LCD   154 mA/3,4 W 

DEGA NSx-PL III LCD   max. 30 min 

Response time (T90) 

Sensor lifetime in a clean environment 

DEGA NSx-EL III LCD   max. 180 s -  based on sensor type  DEGA NSx-EL III LCD   2 years 

DEGA NSx-CL III LCD   max. 15 s 

DEGA NSx-CL III LCD   2 years 

DEGA NSx-IL III LCD   max. 15 s 

DEGA NSx-IL III LCD   5 years 

DEGA NSx-SL III LCD   max. 30 s 

DEGA NSx-SL III LCD   2 years 

DEGA NSx-PL III LCD   max. 15 s 

DEGA NSx-PL III LCD   1 year 

 

Operational conditions 

Ambient temperature:   

 

-40°C to +85 °C 

Relative humidity: 

 

 

0-95 % RH 

Air pressure:   

 

 

86 - 108 kPa 

 

Flow of ambient air:   

 

max. 2 m/s - flow directly to the sensor in not allowed 

Protection level with a cover: 

IP 64, with a DEGA WATER CAP IP66 cover 

Location: 

 

 

 

BE3N2 - explosive atmoshpheres - zone 1 (2 G) 

Terminology 

The marking system for sensors DEGA NSx-yL  III LCD: 

Gas sensor DEGA                     NSx-yL  III LCD 

 

Series of detectors in potentially explosive atmospheres 

Type of detected gas 

Sensor type with linear output 

Third generation product with new DEGA design 

Versions with an LCD display 

 

 

DEGA NSx-EL III LCD with an electrochemical sensor 

They operate on the principle of change of electrical  parameters on the electrodes stored in electrolyte, due to oxidation/reduction 

reactions of the detected gas on it's surface. These sensors have good selectivity and the ability to detect very low concentrations of toxic 

gases. 

DEGA NSx-CL III LCD with a catalytic sensor (Pelistor) 

They operate on the principle of catalytic combustion -  gas concentration is measured based on the amount of heat released in a 

controlled combustion reaction. The reaction is supported by a suitable temperature and the pressence of a catalyst. These sensors can be 

Содержание 040100118

Страница 1: ...eof 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 liable for any damage resulting from use of this device ...

Страница 2: ...on periods 8 5 Reading the record of measured concentrations and alarms 8 Transmitter controls 9 1 History menu HIST 10 2 Information menu INF 10 3 Settings menu SET 11 4 Test menu TEST 13 Operation maintenance inspection and service of the transmitter 14 1 Usage limits 14 2 Operation 14 3 Operation Maintenance 14 Accessories and basic types of transmitters 15 1 Calibration adapter connection to t...

Страница 3: ...e of them in accordance with the current legislation on environmental protection Use the transmitter only with the appropriate certified DEGA products The device is certified as functionally and technically qualified only with original DEGA accessories In case of using the device with any other products the manufacturer is not liable for any damages that may occur Undertake regular functional chec...

Страница 4: ...I LCD max 15 s DEGA NSx CL III LCD 2 years DEGA NSx IL III LCD max 15 s DEGA NSx IL III LCD 5 years DEGA NSx SL III LCD max 30 s DEGA NSx SL III LCD 2 years DEGA NSx PL III LCD max 15 s DEGA NSx PL III LCD 1 year Operational conditions Ambient temperature 40 C to 85 C Relative humidity 0 95 RH Air pressure 86 108 kPa Flow of ambient air max 2 m s flow directly to the sensor in not allowed Protecti...

Страница 5: ... principle of changes in electrical conductivity of semiconductors by changing the concentration of the detected gas Their advatage is a long lifetime in a clean environment and a wide range of different types of gases and vapors Their disadvatage is their low selectivity the sensor largly responds to other gases for which it is not calibrated Other types DEGA NSx yL III basic version DEGA NSx yL ...

Страница 6: ...b Disconnect the LCD motherboards c Mount the transmitter on a flat surface with four 6mm fasteners in height above the floor with the gas entrance facing downwards as specified by the detected substance d Direct the cable trough the bushing e Connect the cabeling to the terminal block When using the second Ex d bushing dismout the Ex d blind plug It is allowed to use only Ex d bushings with M20x1...

Страница 7: ...te type of cable depends on the fire report and the protocol for determining external influences 7 Setting the RS485 adress of the transmitter Each transmitter must have a unique adress within the entire bus otherwise there will be communication collisions and malfunctions The transmitter adress can either be set internally using the DegaConfig program or using the DIP switch on the PCB If the pos...

Страница 8: ... detection The transmitter continuously measures the detected gas concentration in the atmoshpere and converts it s current value into a 4 20 mA signal or transmits it s value to the evaluation unit via DEGA MOBUS protocol 3 Malfunction In case of malfunction the LCD displays the measured concentration an error code and a key symbol On the PCB this condition is indicated by the yellow ERR LED The ...

Страница 9: ...hed alarm level Alarm indication 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 2s activates the magnetic control which is displayed by the icon on the LCD Reaching level 4 alarm with catalytic and semiconductor sensors causes a ratchet phenomenon where even after recovery fro...

Страница 10: ... the past 8 hours Return to History menu Highest concentration 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 24 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 co...

Страница 11: ...mA current Alarm level 1 Displays alarm level 1 Alarm level 2 Displays alarm level 2 Alarm level 3 Displays alarm level 3 Alarm level 4 Displays alarm level 4 3 Settings menu SET Protected by password 0004 By enetering a wrong password the transmitter returns to measurement mode The password can be changed in the menu SET PSWD Menu Display Description Calibration Sensor calibration Setting the ala...

Страница 12: ...l restart Setting the alarms a Using select the concentration for alarm 1 Confirm b Using select the concentration for alarm 2 Confirm c Using select the concentration for alarm 3 Confirm d Using select the concentration for alarm 4 Confirm e Using switch between YES save settings or NO return to the Settings menu Confirm the selected option Setting the range of the 20mA current loop a Using selec...

Страница 13: ...ngs nebo NO return to the Settings menu Confirm the selected option Setting the time a Using select a number in thousands Save the selected number b Using select a number in hundreds Save the selected number c Using select a number in tens Save the selected number d Using select a number in units Save the selected number e Using switch between YES save settings nebo NO return to the Settings menu ...

Страница 14: ... content of less than 18 there will be an underestimation of the measured value 2 Operation To maintain proper operation of the transmitter it is neccesery to respect the fact that the presence of certain concentrations of gases or vapors other than those for which the sensor is set can cause an alarm even if the concentration of the gas does not exceed the set level Given the range of disturbing ...

Страница 15: ...e LPG 0 100 LEL 0 20 LEL 0 1 LEL Butane 0 32 40100160 DEGA NSH CL 100 III LCD Hydrogen H2 0 100 LEL 0 20 LEL 0 1 LEL Hydrogen 0 8 40100157 DEGA NSHC CL 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 LEL According to the selectivity of the sensor 2 Transmitters with an electrochemical sensor NSx EL III LCD Product code ...

Страница 16: ...ride 25 ppm 40100119 DEGA NSH2S EL 50 III LCD Hydrogen sulfide H2S 0 50 ppm 0 15 ppm 0 1 ppm Hydrogen sulfide 25 ppm 40100121 DEGA NSH2S EL 500 III LCD Hydrogen sulfide H2S 0 500 ppm 0 500 ppm 1 ppm Hydrogen sulfide 500 ppm 040100118 DEGA NSH2S EL 100 III LCD Hydrogen sulfide H2S 0 100 ppm 0 100 ppm 0 1 ppm Hydrogen sulfide 25 ppm 40100120 DEGA NSH2S EL 2000 III LCD Hydrogen sulfide H2S 0 2000 ppm...

Страница 17: ...00 III LCD Phosphine PH3 0 200 ppm 0 200 ppm 0 1 ppm Hydrogen sulfide 25 ppm 40100147 DEGA NSPH3 EL 2000 III LCD Phosphine PH3 0 2000 ppm 0 2000 ppm 1 ppm Hydrogen sulfide 250 ppm 40100149 DEGA NSSIH4 EL 50 III LCD Silane SiH4 0 50 ppm 0 5 ppm 0 1 ppm Hydrogen sulfide 25 ppm 40100107 DEGA NSCLO2 EL 5 III LCD Chlorine dioxide ClO2 0 1 ppm 0 0 4 ppm 0 01 ppm Chlorine 5 ppm 40100116 DEGA NSH2O2 EL 10...

Страница 18: ... combustible gases and vapors according to the selectivity of the sensor 0 100 LEL 0 20 LEL 0 1 Hexane 0 18 LEL 4 Transmitters with a semiconductor sensor NSx SL III LCD Product code Transmitter type Detected gas Measurement range Measurement of current loop 4 20mA Resolution Calibration gas 40100163 DEGA NSY SL 100 III LCD Acetylene C2H2 0 100 LEL 0 20 LEL 0 1 20 LEL 40100162 DEGA NSR SL 2000 III...

Страница 19: ...1 ON ON ON ON ON 2 Table of error codes code cause solution 1 Sensor is not present EEPROM is not communicating Disconnect and reconnect the sensor then restart the sensor by disconnecting and reconnecting the power 2 Unknows sensor type Contact the manufacturer 3 Type 2 senesor type ID not found in the table setting LMP91000 Contact the manufacturer FW update required 4 CRC does not match the sen...

Страница 20: ... If the error persists contact the manufacturer 130 The result of the AD covertion is out of range Contact the manufacturer 3 Signalization transmitted by the current loop 4 20mA Measurement The measure concentration is directly proportional to 4 20mA current output Exceeding the range of measured concentrations Current output ranges from 20 22mA End of valid calibration Current output transmits t...

Страница 21: ...ct shall be 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 obtaine...

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