Individual dust sampler use and maintenance methods

First, the use of multi-position settings 1. The instrument should be fully charged before use, according to the sampling needs to set the sampling time, and then wave the digital key to the corresponding timing (such as "3" position, sampling work time 4 hours). And turn on the power switch of the adopter upwards, and the indicator light is on at this time, indicating that sampling starts. Timing accuracy can be checked with a stopwatch.

2. When the instrument collects gas, first connect the filter to the inlet so as not to suck liquid or particles into the device to affect the flow rate. If the sample is sampled with the solid adsorption tube, the liquid cannot enter the adsorption tube, so as to avoid swelling of the adsorbent. , Make the instrument not work properly. If you inadvertently inhale the machine, you should immediately inject distilled water, clean it several times, and then inhale anhydrous ethanol, and operate the instrument for no more than half an hour, so that absolute ethanol can be fully discharged, and generally normal technical indicators can be restored.

3. The instrument should be fully charged and stored. If it is not used for a long period of time, it needs maintenance charge once every 2-3 months to ensure that the battery has good performance. Do not charge with a dedicated power supply other than the one provided with this instrument.

4. When the instrument is in the off state, the regulator valve handle should be loosened to avoid the long-term pressure of the regulator valve handle trachea and affect the flow.

1. Preparation before sampling:

Optional internal battery: The instrument should use 6 5 # 1.5V dry batteries or 1.2V Ni-MH high-capacity rechargeable battery as built-in operating power supply. Equipped with the battery The battery back cover should be opened, inserted into the battery compartment, and press the start key to check if the built-in battery power complies with the instrument operation and sampling requirements. If the instrument shows undervoltage or fails to meet the sampling time requirement, it should be charged immediately or switched to a dedicated stable power supply. The charging time generally takes about 16 hours. (Regulator power supply operating voltage 220V50HZ, output voltage 9V, current 300MA). The regulated power supply shall be used as the working power supply and shall be switched to the regulator position, inserted into the power supply jack, and connected to the 220V50HZ AC power supply.

Second, the matters needing attention 1. Sampling must be connected to the filter in order to ensure the sampling work efficiency.

2. In the sampling or automatic shutdown time setting, automatic flashing is displayed, indicating undervoltage, and the instrument should be supplemented in time. (Standard charging time is 16 hours)

3. If the instrument is not used for a long time, the battery pack should be periodically and monthly supplemented to ensure that the battery has good performance.