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Product details
Gas detection alarm - MWS 903
Gas monitoring alarm - MWS 903, multi-channel gas alarm device continuously monitors the ambient air and provides early alarms for dangerous, explosive, non flammable gases and vapors.
Measurable gases:
Acetylene (C)2H2）Ether (C)4H10O）Alcohol (z.B.C)2H6O）Ammonia (NH)3）Gasoline (Petroleum spirit), Butane (C)4H10）Chloroform (CHCl)3）Hydrochlorides (HCL), Hydrogen Cyanide (HCN), Carbon Dioxide (CO)2）Carbon monoxide (CO), methane (natural)Qi CH4）Neon (Ne), Propane (C)3H8）Oxygen (0)2）TetrachlorideCarbon (CCl)4）Toluene (C)7H8）Hydrogen (H)2）Xylene (C)9H10）.
| Measuring components | range | Measuring components | range |
| Carbon monoxide (CO) | 0-300ppm | Nitric oxide (NO) | 0-100ppm |
| Methane (CH)4） | 0-100% LEL or 100% VOL | Hydrogen (H)2） |
0-100% LEL or 100% VOL |
| Alcohol (C3H8） | 0-100%LEL | Nitrogen dioxide (NO)2） | 0-300ppm |
| Ammonia (NH)3） |
0-250ppm | Propane (C3H8) | 0-100%LEL |
| Gasoline (CnHm） | 0-100%LEL | Oxygen (O)2) | 0-25%VOL |
| Butane (C4H10） | 0-100%LEL | Carbon tetrachloride (CCl)4) | 0-100ppm |
| Chloroform (CHCl)3） | 0-100%LEL | Toluene (C)7H8) | 0-1000ppm |
| Hydrogen chloride (Hcl) | 0-300ppm | Organic solvents (VOC) | 0-100% LEL or 2000ppm |
| Helium (He) | 0-100%VOL | Xylene (C)9H10) | 0-100% LEL or 2000ppm |
| Carbon dioxide (CO)2） | 0-5000ppm,0-100% |
Note: Other gases and ranges can be adjusted from ppm to 10% as required, Please feel free to contact us for specific inquiries. |
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| Sensor input: | 8 two-wire or three wire sensors (such as LCTR 903) 4-20mA current |
| Sensor power supply: |
24 V = / 1A |
| Range: | CO 0- 300ppm NO20- 30ppm CH40- 100%LEL CO20- 10VOL% Other ranges can be provided as needed. |
| Signal input: | 1 input is used to cancel the alarm |
| Environmental temperature: |
- 10~ + |
| Output signal: |
Up to 12 alarms 1 alarm relay 1 faulty relay 1 alarm slogan relay All outputs have floating conversion contacts, with a maximum capacity of 250V/4A |
| Standard output signal: | Analog output 4-20mA serial interface RS232 |
| Main power supply |
230 V, 50 Hz 115 V, 60 Hz (optional) |
| Protection level: | IP54 according to DIN40050 |
| Size: |
240（W）x 160（H）x |
| Weight: | About 4 kg |
| Testing standards: | German technology VDI2053 |
Product Features
● Clear 4-line LCD display with actual measurement values, half-hour average values, and error messages, operated with a 6-key keyboard
● Ready, fault, and gas alarm indicators
● Assisted operation through a menu of 6 keys
The two alarm limits can be adjusted separately within the testing range of 5-100%
12 floating alarm outputs drive additional alarm and control systems
● Floating faults, alarm device contacts
● Serial output RS232 for connecting to a printer or computer
● High reliability
Low current consumption
Plastic, wall mounting box
● Easy to operate
● Can use UPS power supply
● Optional accessories:
Signal horn, alarm light, alarm slogan, ventilation control, testing instrument, plotter, independent UPS 200-24V power supply.
Other accessories are ordered according to the ordering system.
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