9. S1: SCALE 1 working state
10. S2: SCALE 2 working state
11. S3: SCALE 3 working state
12. LoB: low voltage, please charge battery
13. CHG: charged state, red LED lights up when charging, when the battery is fully charged, Red
and Green LED lights flash alternately.
4.1.2 Key functions
1. SCALE/SELECT: Press this button to select available counting scale among scale 1, scale 2, and
scale 3. You can only choose to use one of them at a time.
SCALE 1: Main counting scale, the bigger platform
SCALE 2: Smaller counting scale offers more accuracy
SCALE 3: Extra connection platform. When we get the sample weight from SCALE 2, we
can use this platform to count more samples.
Operation way：press< Scale/ select > key，WEIGHT line will show flashed [SCALE 1]， press
< Scale/ select > key to select then press <Enter> key to confirm .
2. UNIT key changes the weight units between kg and lb
3. ZERO key sets display to zero or subtract the container weight. The zero range is <10% of full
capacity. ZERO LED indicator will illuminate when you active the ZERO function.
4. TARE key subtracts the weight of a container placed on the weighing platform. The tare range is
<100% full capacity. Press the TARE key to enable the Auto-Tare function, the TARE LED
indicator will illuminate when you activate the TARE function.
Operation way 1 ： turn on the scale and wait for ZERO mode then place container
press<TARE>key ，WEIGHT line will show flashed 0.0000，TARE LED indicator will light up
when you activate it.
Operation way 2：（ new version function）turn on the scale and wait for ZERO mode then
place container press<TARE>key, WEIGHT line will show -X.XXX，ZERO LED indicator will
light up when you activate it.
5. PRINTER key is used to transmit data to a printer, computer, or other device.
It should be connect to PC or printer by USB or RS232.
6. ENTER key has the same function as it would on a computer keyboard.
7. MEM/STORE key is the SAMPLE WEIGHT MEMORY KEY. Press this key to memorize sample
weight, scale can memorize up to 16 different sample weights.
eg：if you want to store sample weigh 0.22047 （1/1000 lb）at place 7，please operate as
below:
press [MEM/STORE]，WEIGHT line will show flashed [01]，press [* ] to select storage place
7 then press ENTER to confirm.
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