12
Fig. 5
4. Preventive inspection
The operator should conduct preventive inspections before use.
1) The observation window and measurement window should be
clean.
2) The numbers displayed on the display window should be normal.
3) Inspection cycle: before use every day.
5. Operational Instructions
This is a high-tech intelligent instrument, which is very easy to
operate. Please operate it according to the following procedures, thus
you can get measured data easily and rapidly.
5.1 About Battery
Before using the device, please put 2 pieces of 5# AA alkali batteries
into its battery box. When it is not used, please take them out to save
electric energy.
*Only high energy alkali battery is applicable, and please do not use
common acidic one so as to avoid leakage of battery liquid which
may cause damage to the device.
*Be care about the polarity of the battery when replacing it.