Hanwei BS03, Operation Manual, Page: 2 / 20

Safety information
1. Before using the device, please first carefully read and follow the
following information to operate the device:
2. Please don't use the defective detector. Before using, please check if
there is crack or spare part missing. If yes, please contact the seller.
3. In order to keep the accuracy, please calibrate it once before the first
time using.
4. Working voltage of the detector is DC18V to DC30V and recommended
voltage is DC24V. The voltage exceeding DC30V will damage the
detector.
5. Before using, please make sure the housing is fixed.
6. There should be no speedy gas flow on the installation place. Otherwise,
it will influence the detection result.
7. Please don't expose the device to the gas which concentration is
exceeding the range. Otherwise, it will influence the accuracy and
shorten the sensor life.
8. Please don't paint the sensor parts or detector.
9. Only sensor spare parts which are specified for BS03 are allowed to be
used.
10. It's suggested calibrate the sensor once every 6 months.
11. In order to avoid damage human beings, please operate it when power
off. Before opening the cover, make sure there is no mixture gas of
combustible gas and air. Otherwise, it will possibly cause fire or
explosion.
12. Please avoid water or dust to come into the housing.
13. Please don't expose the device to the environment which has electric
shock, strong magnetic field or serious continuous mechanic shocking.
14. When no using, please take out the battery from the remote controller.
15. Installation must abide by the national and local regulations.
16. It's forbidden to disassembly, adjust or repair the device without
permission.
17. All the operation inside the device must be carried by professional
persons.