SR Instruments SR Scales SR555i, Operating And Service Manual, Page: 17 / 22

Model SR555 i Stand-On Scale
Operating and Service Manual
Part No. MAN555
i _MICROBAN_201001 Page 17 of 22
S
Instruments, Inc.
,
600 Young Street, Tonawanda, NY 14150
Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com
email: sri@srinstruments.com Copyright 2020
S
Instruments, Inc.
CALIBRATION (Cont’d)
SETTING CALIBRATION
NOTE: Ensure that nothing is in contact with the scale system during this procedure. Remove
hands from the system when noting the displayed calibration results.
STEP 1: Remove the four (4) screws on the bottom of the display housing. Lift the display
panel. Put the scale system into the Calibration Mode by switching the calibration switch on the
display board (Figure 10). “
CALIBRATION
” will flash on the display.
STEP 2:
Select known calibrated weights, traceable to NIST.
NOTE: The weights should total at least 500 pounds (half of the maximum scale capacity). Put
aside a subset of weight that is less than half of the combined weight. DO NOT USE barbells or
uncalibrated weights.
STEP 3: Press the MENU button until “ FULL = 1000.00 Lb ” is displayed. Change “ FULL” to the
value of the total weight of the calibrated weights. Use the UP arrow button to select the digit and the
DOWN arrow button to change digit. Press ENTER to save changes.
STEP 4: Press the MENU button until “ HALF = 500.00 Lb
” is displayed. Change “
HALF” to
the value of the subset of the selected calibrated weights. Use the UP arrow button to select the
digit and the DOWN arrow button to change the digit.
Press ENTER to save changes.
STEP 5: Press MENU button until “ 3 Pt Calibration
” is displayed. Press the
UP arrow button.
STEP 6: Zero the scale by removing all weight from the platform. Press the UP arrow button.
STEP 7: Place the HALF weight from Step 4 on platform. Allow weight to stabilize. Press UP
arrow to save change.
STEP 8: Place the FULL weight from Step 3 on platform. Allow weight to stabilize. Press UP
arrow to save change.
STEP 9 : Press ENTER to save the calibration, or WEIGH to exit without saving .
STEP 10: Remove weight and switch the scale system out of the Calibration Mode on the display
board (Figure 10).
STEP 11: Place the display panel into the display housing. Align the display panel with the four
holes in the display housing. Secure display panel with the four (4) mounting screws.
CAUTION
The integrated circuits and semiconductors on
the printed circuit boards may be damaged
by electrostatic discharge (ESD). Be sure to
use proper handling precautions at all times.