Rice Lake Intercomp CS 5000 - Users Manual - Manual (Page 12)

CS5000, Users
Rev V, January, 2008
12
Calibration
How to test the calibration
This calibration procedure should be performed annually for normal operating conditions.
If the scale is dropped or damaged, or service has been performed on the scale, use this
calibration check.
1. Turn on the head and the base. The display does a lamp test; during this time the
scale does a quick check of itself. Then the weighing system starts weigh mode.
2. 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.
3. Make sure no weight is on the hook. Press the ZERO button. Press the TARE
CLEAR button to clear the tare. The weight shown is zero.
4. Apply weights throughout the weighing range, and verify the correct weight (+/- 0.1%)
is displayed at each step.
5. If possible apply a weight of 105% of capacity, and verify the scale shows OE on the
display.
6. Remove weights and verify the display returns to zero.
7. If there is a failure to meet any of the conditions above, please refer to the Calibration
Procedure.
8. When all the conditions above are correct, the scale is operational.
Calibration Switch
The calibration of the scale is protected from accidental change by a switch protected by
an access plug. The access plug is located on the front of the scale head above the “ON”
switch, and is covered by a calibration sticker (seal). The switch is set in the “calibration
blocked” mode at the factory.
Enabling the Calibration switch
First, remove the calibration sticker which covers the access plug. Using a ¼” Allen
wrench, remove the access plug. Insert the Allen wrench in to the hole and press
the switch once. The scale is now set to allow calibration.
How to enter a number
During this routine you will be asked to enter numbers at many points. You must use the
ZERO and PRINT switches to enter these numbers. The scale will show 5 digits but there
are actually 6 digits because the leftmost digit is initially invisible. The active digit will be
blinking. Press the ZERO key to increase the value of the blinking digit. Press the PRINT
key to move the blinking digit one place to the left. When you advance to the leftmost
digit, the display will initially be blank (value of 0). This display segment can be toggled
between 0 and 1. When you are finished entering the number press both the ZERO and
PRINT switches simultaneously to go on.