1. Manual of AWA6228 III).One-time measurement Hangzhou Aihua Instruments Co., Ltd

2. Functions of keys Start / Reset Key Escape Key Background light Key Run / Pause Key Setup Key Left / Right Keys Enter Key Delete Key Up / Down Keys

3. Boot up meter… start/reset Press the start/reset key for at least 2 seconds to boot up the meter. And enter to the main menu. Main menu

4. Measurement setup… set Press set to go to the Setup menu. Setup menu 1 st page

5. Measurement setup… leftright up down Press left and right keys to move cursor to ‘Mea. time’, then use up and down keys to set the measurement time. (figure shows the measurement time to be 1 minute ）。 ‘Wei’ can set the frequency-weighted to be A,C or Z ； time-weighted to be F,S, or I. For one-time measurement, we recommend to use A,F mode 。

6. Calibration check before test Esc enter Press Esc to go back to main menu, and move the cursor to ‘Meas.’, press enter to go to interface of measurement. Left / right up/down Left / right keys to move the cursor, and up/down keys to change the setting mode. For calibration check, the setting should be ‘NOIS, ONE, LIST, INST’.

7. Put on the calibrator and turn it on. Notes: keep the meter and calibrator connected tightly and solidly. Measurement interface After you turn on the calibrator, the LAFp should be 93.8±0.2 dB. Otherwise, please do the calibration. Ref. to video I). Calibration. Calibration check before test (Cont.)…

8. Start testing… Esc enter After finishing calibration, press Esc to go back to main menu, move cursor to ‘Meas.’, the press enter. left/right up/down Use left/right keys to move cursor, and up/down keys to change setting to be ‘NOIS, ONE, LIST, STAT’. Measurement Interface

9. Testing (cont.)… start/pause Press start/pause to start the measurement. pause When it is doing the test, the up- corner will display ‘RUN’ ; when you press pause, the word will change to be ‘PAUSE’; when the test finished, the word shown as ‘END’. Measurement Interface ‘F104’ means the meter still have space to save 104 more groups of data. So, when it’s shown as ‘F0’, pay attention to the meter’s memory.

10. Recall data… Esc Press Esc to go back to main menu, and pick Data to recall the saved data. enter You can see all the saved data here, pick anyone and press enter to recall this specific data.

11. Recall data … The data will be saved in list and graphic form. Out Press Out key to print out the data, if you have the mini- printer attach to the meter.