SR Instruments SR Scales SR7020i, Operating And Service Manual, Page: 13 / 16

Model SR7020 i Wall Mount Platform Scale
Operating and Service Manual
Part No.MAN7020I_MICROBAN_200520
Page 13 of 16
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 (CON’T)
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 two (2) screws on the display assembly cover. Remove the display assembly from the
scale. Put the scale system into the Calibration Mode by switching the calibration switch on the display
board (Figure 6).
STEP 2: Select known calibrated weights, traceable to NIST, up to the Full Scale value (maximum
capacity).
STEP 3: Press the “ MENU” button until “ FULL 1000.0Lb
” is displayed. Set the
FULL value to the actual
quantity of calibrated weight being used for Full Scale. Use the “ UP” arrow button to select the digit and the
“
DOWN” arrow button to change digit. Press “ ENTER
” to save changes. Press “
WEIGH
” button to abort any
changes.
STEP 4: Press the MENU button until “ HALF 500.0Lb
” is displayed.
NOTE : The Half-Scale value is a value between zero and the Full Scale values. It is usually close to half
the Full Scale value.
Set the HALF value to the actual quantity of calibrated weight being used for Half Scale. Use the “ UP”
arrow button to select the digit and the “ DOWN” arrow button to change the digit. Press
“ENTER”
to save
changes. Press “ WEIGH
” to abort the changes.
STEP 5: Press MENU button until “ 3 PT CAL
” is displayed. Press the “
UP” arrow button.
STEP 6:
Display will read “
ZERO
”. Ensure that all weight has been removed from the platform and
press the “ UP”
arrow button.
STEP 7: Display will read “ ADD HALF
”. Place the calibrated weight on platform for
HALF Scale.
Allow weight to stabilize. Press “ UP”
arrow button to save change.
STEP 8: Display will read “ ADD FULL
”. Place the calibrated weight on platform for
FULL Scale.
Allow weight to stabilize. Press “ UP”
arrow to save change.
STEP 9 : Press
“ENTER”
button to save the calibration, or “ WEIGH
” button
to exit without saving .
STEP 10: Switch the scale system out of the Calibration Mode on the display board (Figure 6).
NOTE : Ensure that no wires have become unplugged during calibration.
STEP 11: Place the display assembly into the scale frame. Attach using the two (2) display cover screws.