DEGA NB III Fixed Gas Detection Transmitter
Product Information
The Gas Detection Transmitter is a product manufactured by DEGACZ s.r.o. that is designed for detecting gases in non-explosive environments. The product is not to be disassembled or exposed to water, and it should only be used with certified DEGA products. he
transmitter is automatically calibrated and will transmit its calibration status after 12 months since the last calibration. The technical data and information for the product are:
- Supply voltage:
- Cable connections via 4-20 mA:
- Cable connections via RS485:
- Diameter range of wires:
- Output:
- Dimensions without bushings:
- Dimensions of box:
- Weight:
- Dead band:
Product Usage Instructions
Before using the Gas Detection Transmitter, please read the following usage instructions carefully:
- Assemble the transmitter with the sensor facing downwards to maintain IP protection.
- Beware of static electricity. Do not touch the electroniccomponents directly.
- The device is intended to be installed by a trained person only.
- In case of malfunction, immediately unplug from the power supply and have the device inspected at an authorized dealer or manufacturer.
- The transmitter is designed for non-explosive environments only. For potentially explosive environments, use the DEGA NSx-yL II (ZONE 2) and NSx-yL III (ZONE 3) transmitters.
- Use appropriate cable types as recommended in the user manual.
- Dispose of used products and transmitter sensors in accordance with current legislation on environmental protection.
- Use the transmitter only with the appropriate certified DEGA products.
- The transmitter automatically checks its calibration period. After 12 months since the last calibration, the transmitter will transmit its calibration status to the host system. The transmittermust be calibrated immediately at a certified service center with a
valid certificate of competence or the manufacturer. See section Monitoring the calibration periods in the user manual for more information.
- 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) - 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 internal space
- Output: 4 – 20 mA RS485 – DEGA protocol
- Dimensions without bushings: 110x100x50 mm (WxHxD)
- Dimensions of box: 120x120x55 mm (WxHxD)
- Weight: 0,3 kg
- Dead band: max 5% of range
Consumption/input at 24V (output RS485)
- DEGA NBx-EL III 25mA/0,6W
- DEGA NBx-CL III 70mA/1,7W
- DEGA NBx-IL III 50mA/1,2W
- DEGA NBx-SL III 70 mA/1,7 W
- DEGA NBx-PL III PID 70 mA/1,7 W
Consumption/input at 24V (output 4-20mA)
- DEGA NBx-EL III 45mA/1,1W
- DEGA NBx-CL III 90mA/2,2W
- DEGA NBx-IL III 70mA/1,7W
- DEGA NBx-SL III 90mA/2,2 W
- DEGA NBx-PL III 90 mA/2,2 W
PID Response time (T90)
- DEGA NBx-EL III max. 180s – based on sensor type
- DEGA NBx-CL III max. 30s
- DEGA NBx-IL III max. 30s
- DEGA NBx-SL III max. 30s
Warm-Up time
- DEGA NBx-EL III max. 180s
- DEGA NBx-CL III max. 30s
- DEGA NBx-IL III max. 15s
- DEGA NBx-SL III max. 180 s
- DEGA NBx-PL III PID max. 15 s
Time to stabilize (>5day without power)
DEGA NBx-EL III Up to several hours – based on sensor type
DEGA NBx-CL III max. 1h
DEGA NBx-IL III max. 30min
DEGA NBx-SL III max. 1 h
DEGA NBx-PL III PID max. 30 min
Sensor lifetime in a clean environment
- DEGA NBx-EL III 2 years
- DEGA NBx-CL III 2 years
- DEGA NBx-IL III 5 years
- DEGA NBx-SL III 2 years
- DEGA NBx-PL III PID 5000 hours
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:
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.
Product description 
- Bushings
- Hexagon screws 3mm
- Status LED „ALARM“
- Status LED „POWER“
- Status LED „ERROR“
- Sensor module
- Mounting holes
- PCB electronics
- Jumper connector of the terminating.
- Terminal block RS485 B
- Terminal block RS485 A
- 4-20mA signal terminalblock
- GND power supply terminal block
- DIP switch for the RS485 adress
- +24V DC Powersupply terminal block
Assembly and disassembly
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.
- 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
- 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.
- 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
- Connecting the sensor via RS485 to the controller DEGA UPA III/UDA III
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 4×0,8mm | 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 4×1,5mm | 6,2 km | 7,3 km | 11,6 km | 6,2 km |
| Shielded 4×2,5mm | 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.
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”
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.
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
- 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. - 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. - 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. - 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
Operation, maintenance, inspection and service of the transmitter
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.
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.
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
- Additional bushing DEGA BUSHING for NBxIII
Basic types of transmitters
Transmitters with a catalytic sensor NBx-CL III
|
Product code |
Transmitter type |
Detected gas |
Measurement range | Measurement of current loop
(4-20mA) |
Resolution |
Calibration gas |
|
20100075 |
DEGA NBM-CL 100 III | Methane (CH4) Natural gas
CNG |
0–100 % LEL |
0-20 % LEL |
0,1 % LEL |
Methane 0,88 % |
|
20100076 |
DEGA NBP-CL 100 III | Butane (C4H10) Propan-Butane
LPG |
0–100 % LEL |
0-20 % LEL |
0,1 % LEL |
Butane 0,32 % |
| 20100074 | DEGA NBH-CL 100 III | Hydrogen (H2) | 0–100 % LEL | 0-20 % LEL | 0,1 % LEL | Hydrogen 0,8 % |
|
20100077 |
DEGA NBHC-CL 100 III |
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 |
Transmitters with an electrochemical sensor NBx-EL III
|
Product code |
Transmitter type |
Detected gas |
Measurement range | Measurement of current loop
(4-20mA) |
Resolution |
Calibration gas |
| 20100028 | DEGA NBCO-EL 1000 III | Carbon Monoxide (CO) | 0–1000 ppm | 0-130 ppm | 1 ppm | Carbon Monoxide 130 ppm |
| 20100025 | DEGA NBCO-EL 200 III | Carbon Monoxide (CO) | 0–200 ppm | 0-200 ppm | 0,1 ppm | Carbon Monoxide 130 ppm |
| 20100027 | DEGA NBCO-EL A500 III | Carbon Monoxide (CO) | 0- A500 ppm | 0-500 ppm | 1 ppm | Carbon Monoxide 130 ppm |
| 20100029 | DEGA NBCO-EL 2000 III | Carbon Monoxide (CO) | 0–2000 ppm | 0-2000 ppm | 1 ppm | Carbon Monoxide 130 ppm |
| 20100026 | DEGA NBCO-EL 500 III | Carbon Monoxide (CO) | 0–500 ppm | 0-2000 ppm | 1 ppm | Carbon Monoxide 130 ppm |
|
20100045 |
DEGA NBA-EL 100 III |
Ammonia (NH3) |
0-100 ppm |
0-50 ppm |
0,1 ppm |
Ammonia 100 ppm |
|
20100047 |
DEGA NBA-EL 1000 III |
Ammonia (NH3) |
0-1000 ppm |
0-300 ppm |
1 ppm |
Ammonia 100 ppm |
|
20100050 |
DEGA NBA-EL 10000 III |
Ammonia (NH3) |
0-10000 ppm |
0-10000 ppm |
1 ppm |
Ammonia 100 ppm |
|
20100046 |
DEGA NBA-EL 500 III |
Ammonia (NH3) |
0-500 ppm |
0-500 ppm |
1 ppm |
Ammonia 100 ppm |
|
20100049 |
DEGA NBA-EL 5000 III |
Ammonia (NH3) |
0-5000 ppm |
0-5000 ppm |
1 ppm |
Ammonia 100 ppm |
|
20100048 |
DEGA NBA-EL 2000 III |
Ammonia (NH3) |
0-2000 ppm |
0-2000 ppm |
1 ppm |
Ammonia 100 ppm |
| 20100022 | DEGA NBCL2-EL 20 III | Chlorine (Cl2) | 0-20 ppm | 0-5 ppm | 0,01 ppm | Chlorine 5 ppm |
| 20100023 | DEGA NBCL-EL 200 III | Chlorine (Cl2)) | 0-200 ppm | 0-200 ppm | 0,1 ppm | Chlorine 50 ppm |
| 20100057 | DEGA NBO2-EL 1 III | Oxygen (O2) | 0-1 % | 0-1 % | 0,01 % | Air |
| 20100058 | DEGA NBO2-EL 100 III | Oxygen (O2) | 0-100 % | 0-30 % | 0,1 % | Air |
| 20100059 | DEGA NBO2-EL T100 III | Oxygen (O2) | 0-100 % | 0-30 % | 0,1 % | Air |
| 20100061 | DEGA NBO3-EL 5 III | Ozone (O3) | 0-5 ppm | 0-0,2ppm | 0,01ppm | Chlorine 5 ppm |
| 20100060 | DEGA NBO3-EL 100 III | Ozone (O3) | 0-100 ppm | 0-100 ppm | 0,1ppm | Chlorine 5 ppm |
| 20100041 | DEGA NBHCL-EL 20 III | Hydrogen chloride (HCl) | 0-20 ppm | 0-10 ppm | 0,01 ppm | Hydrogen chloride 10 ppm |
| 20100042 | DEGA NBHCL-EL 200 III | Hydrogen chloride (HCl) | 0-200 ppm | 0-200 ppm | 0,1 ppm | Hydrogen chloride 25 ppm |
| 20100038 | DEGA NBH2S-EL 50 III | Hydrogen sulfide (H2S) | 0-50 ppm | 0-15 ppm | 0,1 ppm | Hydrogen sulfide 25 ppm |
| 20100036 | DEGA NBH2S-EL 500 III | Hydrogen sulfide (H2S) | 0-500 ppm | 0-500 ppm | 1 ppm | Hydrogen sulfide 500 ppm |
| 20100035 | DEGA NBH2S-EL 100 III | Hydrogen sulfide (H2S) | 0-100 ppm | 0-100 ppm | 0,1 ppm | Hydrogen sulfide 25 ppm |
| 20100037 | DEGA NBH2S-EL 2000 III | Hydrogen sulfide (H2S) | 0-2000 ppm | 0-2000 ppm | 1 ppm | Hydrogen sulfide 2000 ppm |
| 20100054 | DEGA NBNO2-EL 20 III | Nitrogen dioxide (NO2) | 0-20 ppm | 0-15 ppm | 0,01 ppm | Nitrogen dioxide 20 ppm |
| 20100055 | DEGA NBNO2-EL 100 III | Nitrogen dioxide (NO2) | 0-100 ppm | 0-100 ppm | 0,1 ppm | Nitrogen dioxide 20 ppm |
| 20100056 | DEGA NBNO2-EL 500 III | Nitrogen dioxide (NO2) | 0-500 ppm | 0-500 ppm | 1 ppm | Nitrogen dioxide 100 ppm |
|
20100052 |
DEGA NBNO-EL 250 III |
Nitric oxide (NO) |
0-250 ppm |
0-15 ppm |
0,1 ppm |
Nitric oxide 150 ppm |
|
20100051 |
DEGA NBNO-EL 25 III |
Nitric oxide (NO) |
0-25 ppm |
0-25 ppm |
0,1 ppm |
Nitric oxide 15 ppm |
|
20100053 |
DEGA NBNO-EL 1000 III |
Nitric oxide (NO) |
0-1000 ppm |
0-100 ppm |
1 ppm |
Nitric oxide 150 ppm |
| 20100070 | DEGA NBSO2-EL 20 III | Sulfur dioxide (SO2) | 0-20 ppm | 0-3,5 ppm | 0,01 ppm | Sulfur dioxide 4 ppm |
| 20100071 | DEGA NBSO2-EL 200 III | Sulfur dioxide (SO2) | 0-200 ppm | 0-200 ppm | 0,1 ppm | Sulfur dioxide 50 ppm |
| 20100072 | DEGA NBSO2-EL 2000 III | Sulfur dioxide (SO2) | 0-2000 ppm | 0-2000 ppm | 1 ppm | Sulfur dioxide 1000 ppm |
| 20100067 | DEGA NBSO2-EL 100 III | Sulfur dioxide (SO2) | 0-100 ppm | 0-100 ppm | 0,1 ppm | Sulfur dioxide 50 ppm |
| 20100068 | DEGA NBSO2-EL 1000 III | Sulfur dioxide (SO2) | 0-1000 ppm | 0-1000 ppm | 1 ppm | Sulfur dioxide 1000 ppm |
| 20100069 | DEGA NBSO2-EL 10000 III | Sulfur dioxide (SO2) | 0-10000 ppm | 0-10000 ppm | 1 ppm | Sulfur dioxide 1000 ppm |
| 20100011 | DEGA NBCH2O-EL 10 III | Formaldehyde (CH2O) | 0–10 ppm | 0-0,7 ppm | 0,01 ppm | Carbon Monoxide 130 ppm |
| 20100013 | DEGA NBCH2O-EL 1000 III | Formaldehyde (CH2O) | 0–1000 ppm | 0-1000 ppm | 1 ppm | Carbon Monoxide 450 ppm |
| 20100012 | DEGA NBCH2O-EL 50 III | Formaldehyde (CH2O) | 0–50 ppm | 0-50 ppm | 0,1 ppm | Carbon Monoxide 130 ppm |
| 20100014 | DEGA NBC2H4-EL 10 III | Ethylene (C2H4) | 0–10 ppm | 0-10 ppm | 0,01 ppm | Ethylene 2 ppm |
| 20100015 | DEGA NBC2H4-EL 1500 III | Ethylene (C2H4) | 0–1500 ppm | 0-1500 ppm | 1 ppm | Ethylene 200 ppm |
| 20100016 | DEGA NBC2H4-EL 200 III | Ethylene (C2H4) | 0–200 ppm | 0-200 ppm | 0,1 ppm | Ethylene 200 ppm |
| 20100017 | DEGA NBC2H4O-EL 10 III | Ethylene oxide (C2H4O) | 0–10 ppm | 0-1,5 ppm | 0,01 ppm | Ethylene oxide 2 ppm |
| 20100018 | DEGA NBC2H4O-EL 100 III | Ethylene oxide (C2H4O) | 0–100 ppm | 0-100 ppm | 0,1 ppm | Ethylene oxide 100 ppm |
| 20100019 | DEGA NBC2H4O-EL 1000 III | Ethylene oxide (C2H4O) | 0–1000 ppm | 0-1000 ppm | 1 ppm | Ethylene oxide 100 ppm |
| 20100020 | DEGA NBC2H4O-EL 500 III | Ethylene oxide (C2H4O) | 0–500 ppm | 0-500 ppm | 1 ppm | Ethylene oxide 100 ppm |
| 20100030 | DEGA NBH-EL III 1000 | Hydrogen (H2) | 0–1000 ppm | 0-400 ppm | 1ppm | Hydrogen 1000 ppm |
| 20100031 | DEGA NBH-EL 4000 III | Hydrogen (H2) | 0–4000 ppm | 0-4000 ppm | 1ppm | Hydrogen 1000 ppm |
| 20100032 | DEGA NBH-EL 400000 III | Hydrogen (H2) | 0–400000 ppm | 0–100 % LEL | 0,1 % | 0,8 % obj |
| 20100043 | DEGA NBHCN-EL 50 III | Hydrogen cyanide (HCN) | 0–50 ppm | 0-50 ppm | 1 ppm | Hydrogen sulfide 1 ppm |
| 20100065 | DEGA NBPH3-EL 5 III | Phosphine (PH3) | 0–5 ppm | 0-0,2 ppm | 0,01 ppm | Hydrogen sulfide 25 ppm |
| 20100062 | DEGA NBPH3-EL 20 III | Phosphine (PH3) | 0–20 ppm | 0-20 ppm | 0,01 ppm | Hydrogen sulfide 25 ppm |
| 20100063 | DEGA NBPH3-EL 200 III | Phosphine (PH3) | 0–200 ppm | 0-200 ppm | 0,1 ppm | Hydrogen sulfide 25 ppm |
| 20100064 | DEGA NBPH3-EL 2000 III | Phosphine
(PH3) |
0–2000 ppm | 0-2000 ppm | 1 ppm | Hydrogen sulfide 250 ppm |
| 20100066 | DEGA NBSIH4-EL 50 III | Silane (SiH4) | 0–50 ppm | 0-5 ppm | 0,1 ppm | Hydrogen sulfide 25 ppm |
| 20100024 | DEGA NBCLO2-EL 5 III | Chlorine dioxide (ClO2) | 0-1 ppm | 0-0,4 ppm | 0,01 ppm | Chlorine 5 ppm |
|
20100033 |
DEGA NBH2O2-EL 100 III | Hydrogen peroxide
(H2 O2) |
0-100 ppm |
0-100 ppm |
0,1 ppm |
Sulfur dioxide 25 ppm |
|
20100034 |
DEGA NBH2O2-EL 500 III | Hydrogen peroxide
(H2 O2) |
0-500 ppm |
0-500 ppm |
1 ppm |
Sulfur dioxide 250 ppm |
|
20100039 |
DEGA NBHBr-EL 20 III | Hydrogen bromide
(HBr) |
0-20 ppm |
0-20 ppm |
0,01 ppm |
Hydrogen sulfide 25 ppm |
|
20100040 |
DEGA NBHBr-EL 200 III | Hydrogen bromide
(HBr) |
0-200 ppm |
0-200 ppm |
0,1 ppm |
Hydrogen sulfide 250 ppm |
| 20100044 | DEGA NBHF-EL 10 III | Hydrogen fluoride (HF) | 0-10 ppm | 0-10 ppm | 0,01 ppm | Nitrogen dioxide 20ppm |
| 20100073 | DEGA NBVOC-EL 20 III | VOC | 0-20 ppm | 0-20 ppm | 0,01 ppm | VOC 20ppm |
| 20100009 | DEGA NBBR2-EL 20 III | Bromine (Br) | 0-20 ppm | 0-20 ppm | 0,01 ppm | Chlorine 5 ppm |
| 20100010 | DEGA NBBR2-EL 200 III | Bromine (Br) | 0-200 ppm | 0-200 ppm | 0,1 ppm | Chlorine 50 ppm |
| 20100008 | DEGA NBALC-EL 200 III | Alkohol | 0-200 ppm | 0-200 ppm | 0,1 ppm | Ethanol 200 ppm |
| 20100021 | DEGA NBRCOOH-EL 100 III | Organic acids | 0-100 ppm | 0-100 ppm | 0,1 ppm | Ammonia 300 ppm |
Transmitters with an infrared sensor NBx-IL III
|
Product code |
Transmitter type |
Detected gas |
Measurement range | Measurement of current loop
(4-20mA) |
Resolution |
Calibration gas |
| 20100081 | DEGA NBCO2-IL 5 III | Carbon dioxide (CO2) | 0-5 % vol. | 0-2,5 % vol. | 0,1 % | Carbon dioxide 2,5 % vol. |
| 20100082 | DEGA NBCO2-IL HC III | Carbon dioxide (CO2) | 0-100 % vol. | 0-2,5 % vol. | 0,1 % | Carbon dioxide 2,5 % vol. |
| 20100083 | DEGA NBCO2-IL 500 III | Carbon dioxide (CO2) | 0-500 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 % | Ethanol 20 % LEL |
| 20100089 | DEGA NBC2H4-IL 100 III | Ethylen (C2H4) | 0–100 % LEL | 0-20 % LEL | 0,1 % | Ethene 20 % LEL |
| 20100087 | DEGA NBC2H4O-IL 100 III | Etyhelen oxide (C2H4O) | 0–100 % LEL | 0-20 % LEL | 0,1 % | Etyhelen oxide 20 % LEL |
| 20100093 | DEGA NBC6H14-IL 100 III | Hexane (Petrol) | 0–100 % LEL | 0-20 % LEL | 0,1 % | Hexane 20 % LEL |
| 20100094 | DEGA NBN2O-IL 1 III | Nitrous oxide (N2O) | 0-1 % LEL | 0-0,5 % LEL | 0,01 % | Nitrous oxide 0,5 % LEL |
| 20100092 | DEGA NBC5H12-IL 100 III | Pentane (C5H12) | 0–100 % LEL | 0-20 % LEL | 0,1 % | Pentane 20 % LEL |
| 20100091 | DEGA NBC3H6-IL 100 III | Propylene (C3H6) | 0–100 % LEL | 0-20 % LEL | 0,1 % | Propylene 20 % LEL |
|
20100084 |
DEGA NBHC-IL 100 III |
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 |
Transmitters with a semiconductor sensor NBx-SL III
|
Product code |
Transmitter type |
Detected gas |
Measurement range | Measurement of current loop
(4-20mA) |
Resolution |
Calibration gas |
| 20100080 | DEGA NBY-SL 100 III |
Acetylene (C2H2) |
0–100 % LEL |
0-20 % LEL |
0,1 % |
20 % LEL |
|
20100079 |
DEGA NBR-SL 2000 III |
Refrigerant: R401A, R404A, R407C, R32,
R410A, R12, R22 |
0–2000 ppm |
0-20 % LEL |
1 ppm |
According to the type of refrigerant |
| 20100078 | DEGA NBHFO-SL 2000 III | Refrigerant: R1234yf | 0–2000 ppm | 0-2000 ppm |
1 ppm |
According to the type of refrigerant |
Transmitters with a PID sensor NBx-PID III
|
Product code |
Transmitter type |
Detected gas |
Measurement range | Measurement of current loop
(4-20mA) |
Resolution |
Calibration gas |
| 20100095 | DEGA NBVOC-PID III |
VOC |
0–4000 ppm |
0-500 ppm |
0,1ppm |
Izobutylene 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
- 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 - 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 - Content of package
1x sensor
1x bushing
warranty
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.
- 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.
- 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.
- 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.
- 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).
- The buyer who exercises the right of warranty repair is not entitled to the return of the parts that have been replaced.
- 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.
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
Documents / Resources
 |
DEGA NB III Fixed Gas Detection Transmitter [pdf] Instruction Manual NB III, NB III Fixed Gas Detection Transmitter, Fixed Gas Detection Transmitter, Gas Detection Transmitter, Detection Transmitter, Transmitter |