To tare out the container's mass, simply place the container on the pan.
Close all balance doors.
Press the control bar down once and release.
The digital mass display will then read 0.0000.
At this point, whatever is placed inside the container will be massed directly.
To obtain the mass of a reagent, simply open the balance door(s), add the required amount of chemical to the container and then close the balance door(s).
Wait for the stability detector lamp to go dark and then read the digital mass display.
If the stability detector was switched off, then the display may be read at anytime.
i.e.
stability detector