LW Measurements MRW 33 Mid Resolution Washdown - Manual (Page 17)

17
5 Calibration - Using an External Calibration Weight:
Calibration is required when the weighing machine is initially installed or if the scale is moved to a
substantial distance from the original location. 10 minutes warm up of scale is always needed before
calibration.

Turn the scale on and then turn it off

Press and hold ZERO key, and then press ON/OFF key to turn on the scale, the display will show
CAPu=

Press PCS key, display will show CAP. Press PCS key again, display will show CALu=, press
UNIT key to choose the calibration unit kg or lb

Press PCS key to confirm and display will show CALu= again

Press PCS key, display will show CAL, press UNIT key to set the calibration weight, display will
show xx.x with a flashing digit

Press UNIT key to move flashing digit to right, press ZERO key to increase the digit number. (We
suggest the calibration weight to be at least 50% or more within the scale capacity to get an
accurate weighing )

Press PCS to confirm the setting, display will show CAL

Press ZERO key to start calibration, the display will show the AD value, and wait for stable
indicator displayed, then press UNIT key, display will show ------, and then the flashing calibration
weight

Place the test weight onto the center of the weighing pan, and wait for stable indicator displayed,
press UNIT key, after stable indicator displayed again, it will show ------ and then the AD value,
and now the calibration is completed

Remove the test weight and press ON/OFF key to turn off the scale. Turn it on again to see if the
weighing is accurate, if not, repeat above steps .