Scientech Zeta Series - Manual (Page 8)

8
Linearity (CAL 2):
Linearity is set in the balance’s software at the factory during the manufacturing process. It requires a special set of weights that are
not available commercially. When a CAL 1 function is performed the linearity is automatically reset as well. Unless the balance is
damaged the linearity will not change. Therefore, CAL 2 should never be performed by the user.
Front Panel Parts Counting (PCS):
Note: Access to the PCS function via the front panel is disallowed if the bi-directional RS-232 is enabled. RS-232 is enabled by
selecting local control (LC) oFF (see RS-232 Front Panel Configuration section for details). Local control ON means the
front panel controls the balance.
User Action Balance Response
1 Press the FUNCTION button (or MODE and
RANGE buttons simultaneously for dual
range models).
Display cycles repeatedly through PCS, HI-OK-LO, CAL1, CAL2, T , and %.
2 Press the MODE button when PCS appears on
the display.
PCS and 0 flash. This is a prompt to zero the balance with the container that
will hold the pieces on the weighing pan.
3 Place the empty container on the pan, wait 10
seconds for the balance to stabilize, and then
press the ZERO button.
PCS and 10 flash. This is a prompt to place 10 pieces in the container.
4 Place 10 pieces in the container, wait 10
seconds, and then press the ZERO button.
PCS continues to flash and OK appears on the display while a stable weight is
obtained. Then 10.000, or something very near it, appears on the display. The
number of decimal places depends on the weight. PCS continues to flash. This
prompts you that you may now increase the sample size in order to obtain a
more statistical significant sample which yields a more accurate parts counting
conversion factor. The decimal places aid you in rounding the piece count
correctly as the sample size increases.
5 If you want a larger sample size to be used in
computing the parts counting conversion
factor, add pieces (the balance will count
them) until the decimal part is near 0.7 or 0.3.
Then press the ZERO button.
The balance will round to the nearest whole number but still show the decimal
places. This step may be repeated as many times as you desire.
6 When you are satisfied the sample size is large
enough, press the ZERO button once again.
The balance rounds to the nearest whole number, the decimal places disappear,
and PCS lights steadily.
7 When you wish to count something else, press
the MODE button.
You are now back at Step 2 with a flashing PCS and 0.
8 If you want to exit the counting mode, press
the MODE button again.
The balance returns to normal operation.
Percent Weighing(%):
User Action Balance Response
1 Place an empty container on the weighing pan
and press the ZERO button.
Zeros are displayed.
2 Place the sample which represents 100% in the
weighing container. Display indicates the weight of the sample in the unit of measure you have
selected.
3 Press the FUNCTION button (or MODE and
RANGE buttons simultaneously for dual
range models).
Display cycles repeatedly through PCS, HI-OK-LO, CAL1, CAL2, T , and %.
4 Press the MODE button when % appears on
the display.
Display will indicate % and 100.00. This means that the weight on the pan now
represents 100.00%. You are now in the percent weighing mode with all weight
readings displayed as a percentage of the weight of the sample used in Step 2.
5 If you want to exit the percent weighing mode,
press the MODE button.
The balance returns to normal operation.