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First Class Operation:
First Class pricing now takes into consideration shape (size) as well as weight. Prior to weighing
the item, you should measure it to determine whether it is a Letter, a Flat or a Parcel.
Current USPS regulations (subject to change) for these mailpieces are as follows:
Letter Mailpieces that do not exceed 11-1/2” long, 6-1/8” high, ¼” thick and 3.5 ounces
in weight
Flat
Mailpieces that exceed one (or more) of the dimensions for a Letter and do not
exceed 15” long, 12” high or ¾” thick.
Parcel Mailpieces that exceed any one of the dimensions for a Flat
Regardless of the size, the scale will automatically progress through the weight-based First
Class services when weight is added to (or removed) from the platform:
WEIGHT ON SCALE
DISPLAYED SERVICE
0 to 3.5 oz inclusive
1
st
Class Letter
>3.5 oz to 13 oz inclusive
1
st
Class Flat
>13 oz
Priority Mail
If your mail piece falls into the Flat or Parcel shape, you can manually select this category by
pressing the 1
st
/Pri key repeatedly until the correct category is displayed. For items weighing 13
ounces or less, the SPS-30 PLUS displays a message after “1ST” to designate the category:
“LET” for Letter, “FLAT” for Flat, and “PAR” for Parcel.
WEIGHT ON SCALE
TOGGLE SEQUENCE
0 to 13 oz inclusive
1
st
Class Letter ->1
st
Class Flat -> 1
st
Class Parcel ->
1
st
Class Letter, etc.
> 13 oz
Scale stays in Priority Mail
UPON RETURN TO ZERO
The scale goes back to automatic mode with First Class Letter rates enabled.
Calibration
Your SPS-30 PLUS postal scale is ready to use right out of the box. There is no need to
calibrate the scale unless you feel that the scale has become inaccurate. It is a good idea
to check the calibration of your scale from time to time with a precision test weight.
1. Enter the Calibration Mode by pressing and holding the Mexico (6) key while turning
on the scale. When the message “Calibration? Y/N” appears on the screen, you are
in Calibration Mode and you may release the Mexico (6) key.
2. Press the ENTER (Yes) key enter the calibration mode. The scale displays the mes-
sage “C 0 PR ZERO”.
3. Remove all items from the scale’s platter and then press the ZERO key to zero the
scale. The scale displays the message “C 0 PR ENTER”.
4. Press the ENTER key to save the zero point value. The scale displays the message
“C 4 “.
5. Place the 4 lb test weight(s) onto the scale’s platter. When the weight stabilizes, the
scale displays the message “C 4 PR ENTER”.
