Rice Lake Intercomp CS 200 - Users Manual - Manual (Page 10)

CS200, Users
August, 2009
10
10% through 100% of the scales capacity.
Press the ON switch. The display does a lamp test; during this time the scale does a
quick check of itself. Then the weighing system starts weigh mode.
Intercomp recommends that you allow the electronics to operate for three minutes after
first turning power on. This allows the electronics to become stable for maximum
accuracy before you check the calibrations.
Make sure no weight is on the hook. Press the ZERO switch. The weight shown is zero.
Apply weights throughout the weighing range, and verify the correct weight is displayed
at each step. (+/- 0.1% of applied load or ±1 display graduation, whichever is greater)
If possible apply a weight of 105% of capacity, and verify the scale shows OVER on the
display.
Remove weights and verify the display returns to zero.
If there is a failure to meet any of the conditions above, please refer to the Calibration
Procedure.
When all the conditions above are correct, the scale is operational.
How to enter a number
During this routine you will be asked to enter numbers at many points. The scale will
show a number (originally all zeros) with a blinking digit. Press the ZERO key to
increase the value of the blinking digit. Press the BACKLIGHT key to move to other
digits. When you are finished entering the number press the ZERO and BACKLIGHT
keys together.
Three point span
This CS200 has a three point calibration feature which reduces the effects of non-
linearity in the load cells. This requires that you place three weights on the cell during
calibration. The first weight must be greater than zero, the second greater than the first,
and the final weight somewhere between the second and the capacity.
Calibration blocking switch
The calibration of the scale is protected from accidental change by a shunt placed on
pins 1 to 2 of CAL, located on the back of the circuit board. To allow calibration, the
shunt must be removed. When you are done calibrating, return the shunt to its original
location so that calibration is protected from change.