background image

 

Product description 

 

 

 

Bushings

 

 

Hexagon screws 3 mm   

 

Status LED 
„ALARM“ 

 

Status LED „POWER“ 

 

Status LED „ERROR“

 

 

Sensor module 

 

Mounting holes

 

 

PCB electronics 

 

 

 

Jumper connector of 
the terminating 
resistor RS485

 

 

Terminal block RS485 B 

Terminal block RS485 

4-20 mA signal terminal 
block 

 

GND power supply 
terminal block

 

 

DIP switch for the 
RS485 adress

 

+24V DC Power 
supply terminal block

 

 

 

Assembly and disassembly of the transmitter 

Before assembling, read the valid instalation standarts EN 60079-29-2 (Selection, instalation, use and maintenance of 
detectors for combustible gases and oxygen) and EN 45544-4 (Guildelines for the selection, installation, use and maintenance 
of detectors of toxic substances).  
Secure that the sensor is reachable by air. The transmitter must be in a free area with no obstacles in its way (furniture etc.) 
Ensure that the input of the sensor cannot be polluted by layers of dust or other contamination.

  

To maintain IP protection the transmitter must be assambled with the sensor module facing downwards.

 

1.

 

Assembly of the transmitter

 

The transmitter consists of four parts - the body of the transmitter, the removable sensor and bushings.  
 
Transmitter assembly procedure is as follows: 

a)

 

Disassemble the transmitter with the four hexagon socket screws 3 mm 

b)

 

Use a screwdriver to break out holes for the bushings 

c)

 

Mount the transmitter on a flat surface with four 6 mm fasteners in height above the floor with the gas entrance 
facing downwards, as specified by the detected substance 

d)

 

Direct the cable trough the bushings 

e)

 

Connect the wiring to the terminal block according to " Installation of wiring for RS485".

 

f)

 

Assemble the transmitter with the four hexagon sockets scews 3 mm 

HRW Limited

[email protected]

www.hrw.hk

Summary of Contents for NB III LCD

Page 1: ...out 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 HRW Limited admin hrw hk www hrw hk ...

Page 2: ... 11 4 Transmitters with a semiconductor sensor NBx SL III 11 5 Transmitters with a PID sensor NBx PID III 12 Add on modules 12 Attachments 12 1 Chart for setting the transmitter adress 12 2 Signalization transmitted by the current loop 4 20 mA 12 3 Content of package 12 General warranty terms and conditions 13 For your safety Assamble the transmitter with the sensor facing downwards To maintain IP...

Page 3: ...rational and functional checks only at certified service centers with a valid certificate of competence or the manufacturer Warning The transmitter 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 transmitter will transmit this fact to the host system The transmitter must be calibrated imme...

Page 4: ...ed 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 used to detect a broad range of flammable gases The sensors are characterized by fast response a long lifetime and high stability A minimum of 10 of Oxygen in the air is required for it s proper function DEGA NBx SL III with ...

Page 5: ...h no obstacles in its way furniture etc Ensure that the input of the sensor cannot be polluted by layers of dust or other contamination To maintain IP protection the transmitter must be assambled with the sensor module facing downwards 1 Assembly of the transmitter The transmitter consists of four parts the body of the transmitter the removable sensor and bushings Transmitter assembly procedure is...

Page 6: ...m number of connected transmitters per controler channel is 16 may be less depending on the configuration of the controller while the total length of the connecting cable electrical distance between the controller and the last transmitter should not exceed 400 meters Selecting the appropriate type of cable depends on the fire report and the protocol for determining external influences 6 Setting th...

Page 7: ...t loop 0 5 mA On the PCB this condition is indicated by the yellow ERROR LED 4 Monitoring the calibration periods The transmitter continuously checks the calibration validity of the connected sensor After 12 months since the last calibration Max calibration interval the LED ERROR starts flashing The connected sensor must be calibrated immediately The transmitter will transmit the information about...

Page 8: ... determined Data on cross sensitivity to certail gases are included at the apporpriate sensors Therefore before processing project documentation we recommend to have the air in the deployment area of the detection system analyzed 3 Operation Maintenance In case of contamination the surface can be cleaned with a slightly moistened cloth The seonsors have a different lifetime depending on the sensin...

Page 9: ...20100029 DEGA NBCO EL 2000 III Carbon Monoxide CO 0 A500 ppm 0 500 ppm 1 ppm Carbon Monoxide 130 ppm 20100026 DEGA NBA EL 100 III Carbon Monoxide CO 0 2000 ppm 0 2000 ppm 1 ppm Ammonia 100 ppm 20100045 DEGA NBA EL 1000 III Ammonia NH3 0 100 ppm 0 50 ppm 0 1 ppm Ammonia 100 ppm 20100047 DEGA NBA EL 10000 III Ammonia NH3 0 1000 ppm 0 300 ppm 1 ppm Ammonia 100 ppm 20100050 DEGA NBA EL 500 III Ammonia...

Page 10: ...00 ppm 1 ppm Carbon Monoxide 130 ppm 20100011 DEGA NBCH2O EL 1000 III Formaldehyde CH2O 0 10 ppm 0 0 7 ppm 0 01 ppm Carbon Monoxide 450 ppm 20100013 DEGA NBCH2O EL 50 III Formaldehyde CH2O 0 1000 ppm 0 1000 ppm 1 ppm Carbon Monoxide 130 ppm 20100012 DEGA NBC2H4 EL 10 III Formaldehyde CH2O 0 50 ppm 0 50 ppm 0 1 ppm Ethylene 2 ppm 20100014 DEGA NBC2H4 EL 1500 III Ethylene C2H4 0 10 ppm 0 10 ppm 0 01...

Page 11: ... 500 ppm 0 2 5 vol 0 1 Carbon dioxide 2 5 vol 20100085 DEGA NBM IL 100 III Methane CH4 Natural gas Coal gas CNG 0 100 LEL 0 20 LEL 0 1 Methane 0 88 LEL 20100086 DEGA NBP IL 100 III Butane LPG Propane Butane 0 100 LEL 0 20 LEL 0 1 Butane 0 32 LEL 20100090 DEGA NBC2H6 IL 100 III Ethane C2 H6 0 100 LEL 0 20 LEL 0 1 Ethane 20 LEL 20100088 DEGA NBC2H5OH IL 100 III Ethanol C2 H5OH 0 100 LEL 0 20 LEL 0 1...

Page 12: ... OFF 11 ON ON OFF ON OFF 12 OFF OFF ON ON OFF 13 ON OFF ON ON OFF 14 OFF ON ON ON OFF 15 ON ON ON ON OFF 16 OFF OFF OFF OFF ON adress 1 2 3 4 5 17 ON OFF OFF OFF ON 18 OFF ON OFF OFF ON 19 ON ON OFF OFF ON 20 OFF OFF ON OFF ON 21 ON OFF ON OFF ON 22 OFF ON ON OFF ON 23 ON ON ON OFF ON 24 OFF OFF OFF ON ON 25 ON OFF OFF ON ON 26 OFF ON OFF ON ON 27 ON ON OFF ON ON 28 OFF OFF ON ON ON 29 ON OFF ON O...

Page 13: ... 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 a specific business meeting This warranty is not applicable to a product that h...

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