DEGA NB*-*IL III Series User manual

INSTRUCTION
MANUAL
Gas Detection Transmitter
DEGA NBx-yL III
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 liable for any damage resulting from use of this device.

2
Content
For your safety..................................................................................................................................................................................2
Technical data and information........................................................................................................................................................3
Operational conditions .....................................................................................................................................................................4
Terminology......................................................................................................................................................................................4
Product description...........................................................................................................................................................................4
Assembly and disassembly of the transmitter..................................................................................................................................5
1. Assembly of the transmitter .................................................................................................................................................5
2. Replacement of the sensor module......................................................................................................................................5
3. Connecting the transmitter via current loop to the controler DEGA UPA IIDEGA UPA III a DEGA UDA III...........................5
4. Connecting the sensor via RS485 to the controller DEGA UPA III/UDA III............................................................................6
1. Installation of wiring for RS485.............................................................................................................................................6
2. Setting the RS485 adress of the transmitter.........................................................................................................................6
3. Terminating resistor..............................................................................................................................................................6
Transmitter functions .......................................................................................................................................................................7
1. Turning on the transmitter ...................................................................................................................................................7
2. Gas detection........................................................................................................................................................................7
3. Malfunction...........................................................................................................................................................................7
4. Monitoring the calibration periods.......................................................................................................................................7
Operation, maintenance, inspection and service of the transmitter ...............................................................................................7
1. Usage limits...........................................................................................................................................................................7
2. Operation..............................................................................................................................................................................8
3. Operation/Maintenance.......................................................................................................................................................8
Accessories........................................................................................................................................................................................8
1. Additional bushing DEGA BUSHING for NBxIII......................................................................................................................8
Basic types of transmitters ...............................................................................................................................................................8
1. Transmitters with a catalytic sensor NBx-CL III.....................................................................................................................8
2. Transmitters with an electrochemical sensor NBx-EL III ......................................................................................................9
3. Transmitters with an infrared sensor NBx-IL III ..................................................................................................................10
4. Transmitters with a semiconductor sensor NSx-SL III.........................................................................................................10
5. Transmitters with a PID sensor NSx-PL III PID.....................................................................................................................11
Attachments....................................................................................................................................................................................11
1. Chart for setting the transmitter adress.............................................................................................................................11
2. Signalization transmitted by the current loop 4-20mA ......................................................................................................12
3. Content of package.............................................................................................................................................................12
General warranty terms and conditions.........................................................................................................................................12
For your safety
Assamble the transmitter with the sensor facing downwards
To maintain IP protection the transmitter must be assambled with the sensor module facing downwards
Beware of static electricity
Electronic components are sensitive to static electricity. Do not touch them directly - they may get damanged!
The device is intended to be installed by a trained person
The product is designed for installation only by a certified technician. The manufacturer is not liable for damages resulting
from incorrect or improper handling.
In case of malfunction, immediately unplug from the power supply
If you notice an unusual smell or smoke emitting from the product, unplug it from the power supply, battery backup and all
other attachments. Continued operation could result in injury or property damage. After disconnecting, have the device
inspected at an authorized dealer or manufacturer.
The transmitters is designed for non-explosive environment only
For a potentially explosive environemnt use the transmitters DEGA NSx-yL II (ZONE 2) and NSx-yL III (ZONE 3)

3
Do not disassemble the product and ensure against it's contact with water
Contact with internal components of the product may cause an electric shock. In case of any malfuction entrust the servicing
of the product exclusively to a certified service centre. Contact with water can create a short circuit in the product and
consequent damange to property or personal injury.
Use appropriate cable types
To ensure compliance with the parameters of the product, only use cable types recommended in this guide.
Dispose of used products and trasmitter sensors with respect to the environment
Transmitter sensors contain hazardous substances. Dispose 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 checks and calibrations of the transmitter
Perform regular "CALIBRATION" (setting the detection limits, checking the responsivness of the sensor, checking the
functionality of the transmitter) and "OPERATIONAL AND FUNCTIONAL CHECKS" of the entire detenction system (sensor
excitation with subsequent control of optical and audible alarms, triggering fans, shutdown technology, etc.). Perform
calibration and operational 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
immediately at a certified service center with a valid certificate of competance or the manufacturer. See section "Monitoring the
calibration peridos“.
Technical data and information
Supply voltage: 24 V nominal, operational range 8-30 V
Cable connections via 4-20 mA: shielded cable 3 x 1 mm (max. 1200 m)
shielded cable 3 x 1,5 mm (max. 2400 m)
Cable connections via RS485: shielded cable 4 x 0,8 mm (max. 1200 m) - see section “ instalation of wiring
for RS485“
Diameter range of wires : 0,08-2,5mm2–wire, double line cable 0,25-1,5mm2–double line cable with
internalspace
Output: 4 - 20 mA
RS485 - DEGA protocol
Dimensions without bushings: 110x100x50 mm (WxHxD)
Weight: 0,3 kg
Dead band: max 5% of range
Consumption/input at 24V (output RS485)
Warm-Up time
DEGA NBx-EL III
25mA/0,6W
DEGA NBx-EL III
max. 180s
DEGA NBx-CL III
70mA/1,7W
DEGA NBx-CL III
max. 30s
DEGA NBx-IL III
50mA/1,2W
DEGA NBx-IL III
max. 15s
DEGA NBx-SL III
70 mA/1,7 W
DEGA NBx-SL III
max. 180 s
Consumption/input at 24V (output 4-20mA)
Time to stabilize (>5day without power)
DEGA NBx-EL III
45mA/1,1W
DEGA NBx-EL III
Up to several hours - based on sensor type
DEGA NBx-CL III
90mA/2,2W
DEGA NBx-CL III
max. 1h
DEGA NBx-IL III
70mA/1,7W
DEGA NBx-IL III
max. 30min
DEGA NBx-SL III
90mA/2,2 W
DEGA NBx-SL III
max. 1 h
Response time (T90)
Sensor lifetime in a clean environment
DEGA NBx-EL III
max. 180s - based on sensor type
DEGA NBx-EL III
1-3 years
DEGA NBx-CL III
max. 30s
DEGA NBx-CL III
1-3 years
DEGA NBx-IL III
max. 30s
DEGA NBx-IL III
5+ years
DEGA NBx-SL III
max. 30 s
DEGA NBx-SL III
3-6 years

4
Operational conditions
Ambient temperature: -20°C to +60°C (electrochemical, semiconductor and catalytic sensors) -20°C to +50°C
(infrared sensors)
Relative humidity: 10-95% RV
Air pressure: 86 - 108 kPa
Flow of ambient air: max. 2m/s - flow directly to the sensor in not allowed
Protection level with a cover: IP 54
Location: BE1 - non-explosive environment
Terminology
The marking system for sensors DEGA NBx-yL III:
Gas sensor DEGA NBx-yL III
Series of detectors in non-explosive environment
Type of detected gas
Sensor type with linear output
Third generation product with new DEGA design
DEGA NBx-EL III 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 NBx-CL III 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
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-IL III with an infrared sensor (NDIR)
Top quality scanning method. They operate on the principle of infrared spectroscopy. The sensors have excellent selecivity in organic
matter, do not require any oxygen in the atmoshpere and are resistant to catalyst poisons (sulfur and silicon compounds) which cause a
change of sensitivity of catalytic sensors. The sensors are characterized by high stability and a long lifetime.
DEGA NSx-SL III with a semiconductor sensor
Cheapest method of scanning. They operate on the 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.
DegaConfig - sensor adjusting software enabling it's full configuration and calibration.
Product description

5
Bushings
Hexagon screws 3mm
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
A
4-20mA 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 3mm
b) Use a screwdriver to break out holes for the bushings
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 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 4mm
2. Replacement of the sensor module
This activity must not be performed when the sensor is energized.
In case of need to replace the sensor module with a new piece, unscrew and remove the
cover. Unscrew the two 3mm hexagon screws and take out the sensor module by applying
pressure with a tool from the inside. Carefully insert the new sensor module - be careful not
to bend the pins! Screw the two 3mm hexagons screws and put back the cover. Screw the
cover.
3. Connecting the transmitter via current loop to the controler DEGA UPA IIDEGA UPA III a DEGA UDA III
Connect one transmitter to each channel of the controler as shown in the picture below
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7

6
4. Connecting the sensor via RS485 to the controller DEGA UPA III/UDA III
1. Installation of wiring for RS485
Wiring must be done using bus topology and according to the RS485 principles.
Maximum 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 1200 meters. Due to voltage disposals caused by each transmitter, the maximum addition of distances must
be L1+L2+L3+…+L16:
Cable type
NBx-CL III
NBx-IL III
NBx-EL III
NBx-SL III
Shielded 4x0,8mm
2,1 km
2,9 km
4,2 km
2,1 km
Shielded 4x1mm
3,3 km
4,4 km
6,5 km
3,3 km
Shielded 4x1,5mm
6,2 km
7,3 km
11,6 km
6,2 km
Shielded 4x2,5mm
10,1 km
13,5 km
20,1 km
10,1 km
Selecting the appropriate type of cable depends on the fire report and the protocol for determining external influences.
2. 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 position 6 (labeled ADD) is in the ON position, then the adress according to the setting
of pins 1-5 is considered. Otherwise the adress set in DegaConfig is considered.
The adress can be set from range 1-31 using binary values. A table with DIP settings for
individual adresses is listed in the attachment "Chart for setting the transmitter adress"
3. Terminating resistor
According to the RS485 specifications, the last device on the bus must be ending with a terminating
resistor 120R. Plug a jumper on the JP2 connector of the last device on the bus to include the 120R
terminating resistor. In the default configuaration the jumper connector is not plugged.

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Transmitter functions
The detector's motherboard is equipped by status LEDs, which help in detecting problems during the installation.
LED „POW“ shines at correct power
LED „ALARM“ shines when the alarm level is crossed
LED „ERROR“ shines in case of malfunction or an unstandard situation
1. Turning on the transmitter
Po After turning on the power the LED "POW" starts shining and the LED "ERROR" starts flashing, indicating a forming
sequence of the sensor and automatic testing procedures, which can take up to 180s depending on the sensor used. The
output of the current loop is 1mA. During this sequence, testing of internal electronics and stabilization of the sensor in order
to eliminate false alarms after turning on, is taking place. After completion of the formation, a 4mA current begins to flow on
the output of the current loop and the transmitter starts working according to it's settings.
2. Gas 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 protocol.
3. Malfunction
If a malfunction of the electronics or the sensor is found during operation, the transmitter will continue transmitting via
current loop 0,5mA. 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 the ending calibration via current loop.
The transmission will be the following: 10s transmitting a 4-20mA signal informing about the actual gas concentration
following a 1 second interval of 2mA current.
Operation, maintenance, inspection and service of the transmitter
1. Usage limits
To maintain proper operation of the transmitter it is neccesery to respect the fact, that step changes of humidity,
condensation or rapid changes of pressure can cause incorrect indication of the measured value. Each sensing technology is
suited for different methods of application, which is described below. All sensors are characterized by a smaller or larger cross-
sensitivity to other gases than those which are set. Therefore before processing project documentation we recommend to
have the air in the deployment area of the detection system analyzed.
a) catalytic sensors: Trace amount of vapors of silicon compounds and sulfur compounds cause a permanent loss of sensitivity,
which requires recalibration or replacement of the sensor. Longterm crossing of the measuring range causes a decrease in
sensitivity. In case of an atmoshpere having an oxygen content of less than 17%, there will be an underestimaton of the
measured value. In case of an atmoshpere having an oxygen content of more than 25%, there will be an overestimation of the
measured value.
b) electrochemical sensors: Constant exposure to toxic gases or short-term exposure to gases, which greatly exceed the
maximum range of the sensor, can damage the electrochemical sensor, which requires recalibration or replacement. High
temperature along with low relative humidity have a negative effect on the sensor's lifetime. In case of an atmoshpere having
an oxygen content of less than 1% for longer than 1 hour, there will be an underestimation of the measured value.
c) infrared sensors: Vapor acids and alkalis can etch the optical system and distort the measurements. A check or a calibration
may be neccesery.
d) semiconductor sensors: Short-term exposure to gases or vapors of organic solvents, which greatly exceed the maximum
range of the sensor, may damage the sensor and a recalibration or replacement may be required. In case of an atmoshpere
having na oxygen content of less than 18%, there will be an underestimation of the measured value.

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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 gases or vapors (diluents, exhaust gases, vapors of organic substances,
disinfectants, etc.) a generally allowable concentration of interfering gases can not be 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 sensing technology used, and environmental conditions.
Characteristics of the sensors vary over time. Therefore it is required to perform regular checks and calibrations, which can be
done in two ways:
a) 1x every six months carry out a „calibration“ and functional control - adjust the sesitivity 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 occurrance of disturbing gases in the atmoshpere.
b) 1x every twelve months carry out a „calibration“ - adjust the sesitivity 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
occurrance of disturbing gases in the atmoshpere. Also carry out a „functional control" 1 x every three months -
checking the function of the entire detection system using a test gas, which does not exceed the range of the sensor.
We recommend using gas intended for laboratory use.
For the „functional control“ do not use means for testing fire alarm detectors!
Perform calibration only at certified service centers with a valid certificate of competence or the manufacturer.
For the Czech Republic only DEGA CZ s.r.o.
Accessories
1. Additional bushing DEGA BUSHING for NBxIII
PG9
Basic types of transmitters
1. Transmitters with a catalytic sensor NBx-CL III
Transmitter type
Detected gas
Measurement
range
Measurment of
current loop
(4-20mA)
Standard alarm setting
Resolution
Calibration gas
DEGA NBM-CL III
Methane (CH4)
Natural gas
CNG
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1% LEL
Methane 0,88 %
DEGA NBP-CL III
Butane (C4H10)
Propan-Butane
LPG
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1% LEL
Butane 0,32 %
DEGA NBH-CL III
Hydrogen (H2)
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1% LEL
Hydrogen 0,8 %
DEGA NBB-CL III
Gasoline vapors
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1% LEL
Hexane 0,18 %
DEGA NBA-CL III
Ammonia
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1% LEL
Methane 0,88 %
DEGA NBHFO-CL III
HFO Refrigerants
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1% LEL
Methane 0,88 %
DEGA NBL-CL III
Other flammable
and combustible
gases and vapors
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1% LEL
According to the
selectivity of the
sensor

9
2. Transmitters with an electrochemical sensor NBx-EL III
Transmitter type
Detected gas
Measurement
range
Measurment of
current loop
(4-20mA)
Standard alarm setting
Resolution
Calibration gas
DEGA NBC-EL III
Carbon Monoxide
(CO)
0- 1000 ppm
0-130 ppm
1.st.26 ppm, 2. st. 45 ppm,
3st.:87ppm, 4 st. 130 ppm
ALARM "PEL":
a)according to ČSN 50 291
120min./30ppm
Application: Detection in residential
buildings
b) According to ČSN 73 6058: 30min. / 87
ppm
Applications: Underground garages
c) according to Government regulation
nr.321/2007 : 8h/26 ppm
Aplication: Working staff environment
1 ppm
Carbon
Monoxide
130 ppm
DEGA NBA-EL III
Ammonia
(NH3)
0-1000 ppm
0-100 ppm
0-300 ppm
0-50 ppm
1. st. 75 ppm, 2. st.150 ppm
3. st. 225 ppm, 4. st.300ppm
1. st. 14 ppm, 2. st.18 ppm
3. st. 27 ppm, 4. st. 47 ppm
ALARM "PEL" 20 ppm/8h
1 ppm
0,1 ppm
Ammonia
300 ppm
DEGA NBCL-EL III
Chlorine
(Cl2)
0-20 ppm
0-5 ppm
1. st. 0,3 ppm, 2. st.0,5 ppm
3. st. 1,5 ppm, 4. st. 3 ppm
ALARM "PEL" : 0,2 ppm/8h
0,1 ppm
Chlorine
5 ppm
DEGA NBO-EL III
Oxygen
(O2)
0-30 % vol.
0-30 % vol
1. st. 19% vol., 2. st.18% vol.
3. st. 16% vol., 4. st. 15% vol.
or
1. st. 23% vol., 2. st.24% vol.
3. st. 26% vol., 4. st. 27% vol.
0,1 %
Air
DEGA NBO-EL III H RoHS
Oxygen (O2)
0-30 % vol.
0-30 % vol
1. st. 19% vol., 2. st.18% vol.
3. st. 16% vol., 4. st. 15% vol.
or
1. st. 23% obj., 2. st.24% vol.
3. st. 26% obj., 4. st. 27% vol.
For high humidity, meets RoHS
0,1 %
Air
DEGA NBO-EL III RoHS
Oxygen (O2)
0-30 % vol.
0-30 % vol
1. st. 19% vol., 2. st.18% vol.
3. st. 16% vol., 4. st. 15% vol.
or
1. st. 23% obj., 2. st.24% vol.
3. st. 26% obj., 4. st. 27% vol.
Meets RoHS
0,1 %
Air
DEGA NBO3-EL III
Ozone (O3)
0-5 ppm
0-0,2ppm
1. st. 0,1 ppm, 2. st. 0,13 ppm
3. st. 0,17 ppm, 4. st. 0,2 ppm
ALARM "PEL 0,05 ppm/8h
0,01ppm
Ozone 0,3 ppm
DEGA NBHCL-EL III
Hydrogen chloride
(HCl)
0-20 ppm
0-10ppm
1. st. 4,9 ppm, 2. st. 6 ppm
3. st. 8 ppm, 4. st. 9,3 ppm
ALARM "PEL" 5,43 ppm/8h
0,1 ppm
Hydrogen
chloride
10 ppm
DEGA NBH2S-EL III
Hydrogen sulfide
(H2S)
0-50 ppm
0-15ppm
1. st. 6,5 ppm, 2. st. 8 ppm
3. st. 10 ppm, 4. st. 13 ppm
ALARM "PEL" according to Government
regulation nr.321/2007 : 8h/7,1 ppm
0,1 ppm
Hydrogen sulfide
15 ppm
DEGA NBH2S-EL III H LCD RE
Hydrogen sulfide
(H2S)
0-100 ppm
0-15ppm
1. st. 6,5 ppm, 2. st. 8 ppm
3. st. 10 ppm, 4. st. 13 ppm
For high humidity
0,1 ppm
Hydrogen sulfide
15 ppm
DEGA NBH2S-EL II HC
Nitrogen dioxide
(NO2)
0-20 ppm
0-15ppm
1. st. 5 ppm, 2. st. 7 ppm
3. st. 8 ppm, 4. st. 10 ppm
ALARM "PEL" 4,94 ppm/8h
0,1 ppm
Nitrogen dioxide
15 ppm
DEGA NBH2S-EL III H
Sirovodík (H2S)
0-100 ppm
0-15ppm
1. st. 6,5 ppm, 2. st. 8 ppm
3. st. 10 ppm, 4. st. 13 ppm
Pro vysokou vlhkost
0,1 ppm
Sirovodík 15 ppm
DEGA NBNO2-EL III
Nitric oxide (NO)
0-250 ppm
0-15ppm
1. st. 5 ppm, 2. st. 7 ppm
3. st. 8 ppm, 4. st. 10 ppm
ALARM "PEL" 7,57 ppm/8h
0,1 ppm
Nitric oxide
15 ppm
DEGA NBNO-EL III
Sulfur dioxide
(SO2)
0-20 ppm
0-3,5 ppm
1. st. 1,7 ppm, 2. st. 2 ppm
3. st. 2,5 ppm, 4. st. 3,5 ppm
ALARM "PEL" 1,91 ppm/8hod
0,1 ppm
Sulfur dioxide
4 ppm
DEGA NBSO2-EL II
Formaldehyde
(CH2O)
0 - 10 ppm
0-0,7 ppm
1. st. 0,3 ppm, 2. st. 0,5 ppm
3. st. 0,6 ppm, 4. st. 0,7 ppm
0,01 ppm
Formaldehyde
1 ppm
DEGA NBCH2O-EL II
Ethylene (C2H4)
0 - 10 ppm
0-10 ppm
1. st. 1,7 ppm, 2. st. 5 ppm
3. st. 7 ppm, 4. st. 10 ppm
0,1 ppm
Ethylene
10 ppm

10
DEGA NBC2H4-EL III
Ethylene oxide
(C2H4O)
0 –10 ppm
0-1,5 ppm
1. st. 0,5 ppm, 2. st. 0,8 ppm
3. st. 1,2 ppm, 4. st. 1,5 ppm
0,1 ppm
Ethylene oxide
2 ppm
DEGA NBC2H4O-EL III
Hydrogen
(H2)
0 - 1000 ppm
0-400 ppm
1. st. 100 ppm, 2. st. 200 ppm
3. st. 300 ppm, 4. st. 400 ppm
1ppm
Hydrogen
400 ppm
DEGA NBH-EL III
Hydrogen cyanide
(HCN)
0 - 100 ppm
0-8,3 ppm
1. st. 2,5 ppm, 2. st. 5,0 ppm
3. st. 6,2 ppm, 4. st. 8,3 ppm
1 ppm
Hydrogen cyanice
10 ppm
DEGA NBH-EL II
Phosphine
(PH3)
0 - 5 ppm
0-0,2 ppm
1. st. 0,06 ppm, 2. st. 0,1 ppm
3. st. 0,15 ppm, 4. st. 0,2 ppm
0,1 ppm
Phosphine
0,3 ppm
DEGA NBHCN-EL II
Silane (SiH4)
0 - 50 ppm
0-5 ppm
1. st. 2 ppm, 2. st. 3 ppm
3. st. 4 ppm, 4. st. 5 ppm
0,1 ppm
Silane 6 ppm
DEGA NBPH3-EL II
Chlorine dioxide
(ClO2)
0-1 ppm
0-0,2 ppm
1. st. 0,06 ppm, 2. st. 0,1 ppm
3. st. 0,15 ppm, 4. st. 0,2 ppm
0,01 ppm
Chlorine dioxide
0,3 ppm
DEGA NBSIH4-EL II
Other chemical
substances
according to
customer
requirements
Depending on the
type of sensor
According to chemical substance
According
to
chemical
substance
According to
chemical
substance
3. Transmitters with an infrared sensor NBx-IL III
Transmitter type
Detected gas
Measurement
range
Measurment of
current loop
(4-20mA)
Standard alarm setting
Resolution
Calibration gas
DEGA NBCO2-IL III
Carbon dioxide
(CO2)
0-5 % vol.
0-2,5 % vol.
1. st. 0,5%, 2. st. 1%
3. st. 2%, 4. st. 2,5%
0,1 %
Carbon dioxide
2,5%
DEGA NBM-IL III
Methane (CH4)
/ Natural gas
/Coal gas / CNG
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Methane 0,88%
DEGA NBP-IL III
Butane / LPG
/ Propane-Butane
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Butane 0,32 %
DEGA NBB-IL III
Gasoline vapors
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Hexane 0,18 %
DEGA NBC2H6-IL II
Ethane
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Etane 20% LEL
DEGA NBC2H5OH-IL II
Ethanol
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Ethanol 20% LEL
DEGA NBC2H4-IL II
Ethylene
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Ethylene
20% LEL
DEGA NBC2H4O-IL II
Ethylen oxide
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Ethylen oxide
20% LEL
DEGA NBC6H14-IL II
Hexane
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Hexane 20% LEL
DEGA NBN2O-IL II
Nitrous oxide
0-1% vol
0-0,5% vol
1. st. 0,125% vol, 2. st. 0,25% vol
3. st. 0,375% vol, 4. st. 0,5% vol
0,01 %
Nitrous oxide
0,5% vol
DEGA NBC5H12-IL II
Pentane
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Pentane 20% LEL
DEGA NBC3H6-IL II
Propene
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Propene 20% LEL
DEGA NBC2H6-IL II
Ethane
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Ethane 20% LEL
DEGA NBL-IL II
Other flamable
and combustible
gases and vapors
according to the
selectivity of the
sensor
0–100% LEL
0-20% LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1% LEL
According to the
selectivity of the
sensor
4. Transmitters with a semiconductor sensor NBx-SL III
Transmitter type
Detected gas
Measurement
range
Measurment of
current loop
(4-20mA)
Standard alarm setting
Resolution
Calibration gas
DEGA NBC-SL III
Carbon monoxide
(CO)
0- 1.000 ppm
0-130 ppm
1. st. 26 ppm, 2. st. 45 ppm
3. st. 68 ppm, 4. st. 87 ppm
1 ppm
Carbon monoxide
130 ppm
DEGA NBM-SL III
Methane /CNG
/ Natural gas
0–100 % LEL
0-20 % LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Methane 0,88 %
DEGA NBP-SL III
Butane / LPG
/ Propane-Butane
0–100 % LEL
0-20 % LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Butane 0,32 %
DEGA NBA-SL III
Ammonia
(NH3)
0-1.000 ppm
0-300 ppm
1. st. 75 ppm, 2. st.150 ppm
3. st. 225 ppm, 4. st. 300ppm
1 ppm
Ammonia
300ppm
DEGA NBB-SL III
Gasoline and
diesel vapors
0–100% LEL
0-20 % LEL
1. st. 5% LEL, 2. st. 10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Hexane 0,18%
DEGA NBF-SL III
Freon R134a
0–600 ppm
0-600 ppm
1. st. 150ppm, 2. st.300 ppm
3. st. 450 ppm, 4. st. 600ppm
1 ppm
R134a 600ppm

11
DEGA NBH-SL III
Hydrogen (H2)
0-100% LEL
0-20 % LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1 %
Hydrogen 0,8%
DEGA NBY-SL III
Acetylene (C2H2)
0–100% LEL
0-20 % LEL
1. st. 5% LEL, 2. st.10% LEL
3. st. 15% LEL, 4. st. 20% LEL
0,1%
Acetylene 20 %
LEL
DEGA NBR-SL III
Refrigerants:
R401A, R404A,
R407C, R32,
R410A, R12, R22
Depending on the
type of refrigerant
Depending on the
type of refrigerant
Depending on the type of refrigerant
1 ppm
Depending on
the type of
refrigerant
DEGA NBL-SL III
Other flammable and
combustible gases and
vapors according to the
selectivity of the sensor
0 –100 % LEL
0-20 % LEL
1. st. 5% LEL, 2. st.10% LEL 3. st. 15% LEL,
4. st. 20% LEL
0,1 %
According to the
detected
substance
5. Transmitters with a PID sensor NSx-PL III PID
Typ snímače
Detekovaný plyn
Rozsah
měření
Rozsah měření
proudové smyčky
(4-20mA)
Standardní nastavení alarmů
Rozlišení
Kalibrační plyn
NBP-PL III PID
Butan (C4H10)
/ Propan-butan
/ LPG
0 - 5000 ppm
0—197 ppm
1. st. 49 ppm, 2. st. 99 ppm
3. st. 147 ppm, 4. st. 198 ppm
1 ppm
Isobutylen
300ppm
NBC8H8-PL III PID
Styren
0 - 5000 ppm
0—94 ppm
1. st. 23 ppm, 2. st. 47 ppm
3. st. 69 ppm, 4. st. 94 ppm
1 ppm
Isobutylen
300ppm
NBC3H6O-PL III PID
Aceton
0 - 5000 ppm
0—630 ppm
1. st. 157 ppm, 2. st. 315 ppm
3. st. 471 ppm, 4. st. 630 ppm
1 ppm
Isobutylen
300ppm
NBC7H8-PL III PID
Toluen
0 - 5000 ppm
0—133 ppm
1. st. 33 ppm, 2. st. 66 ppm
3. st. 99 ppm, 4. st. 133 ppm
1 ppm
Isobutylen
300ppm
NBC2H5OH-PL III PID
Ethanol
0 - 5000 ppm
0—1536 ppm
1. st. 384 ppm, 2. st. 768 ppm
3. st. 1152 ppm, 4. st. 1536 ppm
1 ppm
Isobutylen
300ppm
NBC3H8O-PL III PID
Isopropylalkohol
0 - 5000 ppm
0—400 ppm
1. st. 100 ppm, 2. st. 200 ppm
3. st. 300 ppm, 4. st. 400 ppm
1 ppm
Isobutylen
300ppm
NBC4H8O-PL III PID
Methylethylketon
0 - 5000 ppm
0—306 ppm
1. st. 77 ppm, 2. st. 153 ppm
3. st. 231 ppm, 4. st. 306 ppm
1 ppm
Isobutylen
300ppm
NBC8H8-PL III PID
Styren
0 - 5000 ppm
0—94 ppm
1. st. 23 ppm, 2. st. 47 ppm
3. st. 69 ppm, 4. st. 94 ppm
1 ppm
Isobutylen
300ppm
NBL-PL III PID
Ostatní VOC
0 - 5000 ppm
0—500 ppm
1. st. 125 ppm, 2. st. 250 ppm
3. st. 375 ppm, 4. st. 500 ppm
1 ppm
Isobutylen
300ppm
LEL - Lowest explosion level
ALARM "PEL": Permitted exposure limit - maximal permitted value of the avarage concentration over time.
Alarm settings can be chosen freely according to customer requirements in measurement range.
Attachments
1. Chart for setting the transmitter adress
adress
1
2
3
4
5
1
ON
OFF
OFF
OFF
OFF
2
OFF
ON
OFF
OFF
OFF
3
ON
ON
OFF
OFF
OFF
4
OFF
OFF
ON
OFF
OFF
5
ON
OFF
ON
OFF
OFF
6
OFF
ON
ON
OFF
OFF
7
ON
ON
ON
OFF
OFF
8
OFF
OFF
OFF
ON
OFF
9
ON
OFF
OFF
ON
OFF
10
OFF
ON
OFF
ON
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
ON
ON
30
OFF
ON
ON
ON
ON
31
ON
ON
ON
ON
ON
32
OFF
OFF
OFF
OFF
ON

12
2. 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 the actual measured concentration for 9s in a 4-20mA range and for 1s 2mA
current
Malfunction: Current output will be set to 0,5mA
Service intervention (forming sequence of the sensor): Current output will be set to 1mA
3. Content of package
1x sensor
1x bushing
General warranty terms and conditions
When following the instructions for installation, operation and maintenance, the manufacturer guarantee 24 months from the date of
receipt for the product. Should the product purchased be put into operation by an entity other than the seller, the warranty period
commences from the date that the product is put into operation, provided that the buyer ordered its commissioning within three weeks of
its receipt. The customer expressly acknowledges that during the warranty period that extends beyond the length of the warranty period
that is specified in the Commercial Code (the statutory warranty) s/he can neither require replacement of the product nor may s/he
withdraw from the contract.
1. When claiming a product defect it is necessary to submit a proof of purchase that contains the following information: name and
surname, name and business name, address and the warranty card, if the buyer received one from the seller. The validity of the
warranty shall not be affected by non-compliance with the obligations related to the issuance of the warranty card.
2. Claims concerning the product (for a warranty repair only complete devices are accepted) may be filed during the warranty period only
with the seller from which it was purchased; subsequently the seller is required to forward the product to an authorised service centre
or to the manufacturer.
3. A condition for the recognition of the rights under the warranty is the installation of the product having been undertaken by an
authorised person in possession of a valid certificate from the manufacturer.
5. Claims regarding a product defect that can be dealt with reasonably quickly and without additional consequences will be resolved by
remedying the defect (repair) or by replacement of the product part , because in such a case it is a contradiction of the standard norms
that the entire product 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 obtained through a specific business meeting
This warranty is not applicable to:
•a product that has not been put into operation by the manufacturer or by a certified employee in possession of a valid certificate
issued by the manufacturer
•A product that did not have regulary performed calibrations and functional checks by the manufacturer or by a certified employee is
possession of a valid certificate issued by the manufacturer.
•damage caused by fire, water, static electricity, power surges in the electric supply or in the public network, accident, improper use of
the product, wear and tear
•contamination of the product and its subsequent cleaning
•damage caused by improper installation, any adjustment, modification or improper manner of use inconsistent with the instruction
manual, the technical standards or the applicable safety regulations in the Czech Republic
•damage to the product during transportation caused by improper handling or handling of the product in a manner contrary to the
advice provided in the instruction manual
•DEGA products that have been used in association with other than original DEGA products, including consumables and accessories
•transmitter calibrations, setting the detection limits
•detoriation or destruction of the sensors, including their replacement
•bearing additional parts or consumables (e.g. a foil label, seal, etc.), that are detrimental to normal wear and tear during operation,
together with wear and tear of the product and its parts caused by their normal use.

13
For the complete version of the general business conditions and of the claims procedure go to www.dega.cz
Manufacturer: DEGA CZ s.r.o., Malešická 2850/22c, 130 00 Praha 3, Czech republic
Tax ID: CZ 279 029 43, IČO: 279 02 943; Telephone +420 774 447 660 E-mail: info@dega.cz , Web: www.dega.cz
© 2016 DEGA CZ s.r.o. User Manual ver.: 03DEGANBx-yLIII1212018
This manual suits for next models
64
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