Rice Lake CLS-420 Cargo Lift Scale Installation Manual - Manual (Page 48)

38 CLS-420 Installation Manual
6.0 Calibration
Note
While the functionality remains the same for a standard 420 digital weight indicator, there are certain menu
choices that need to be changed in the manual that are specific to the proper functioning of the CLS-Series
Cargo Lift Scale which include Calibration, Serial, Program, and Print Format.
The CLS-420 indicator can be calibrated using the front panel calibration procedure as explained in Section 6.1.
This method consists of the following steps:
• Zeroing the scale inclinometer
• Zero calibration
• Entering the test weight value
• Calibration of cell #1
• Calibration of cell #2
The following sections describe the calibration procedure for each of the calibration methods.
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Figure 6-1. CLS-420 Calibration (CALIBR) Menu
6.1 Front Panel Calibration
To calibrate the indicator, the forklift tines must be in place as test weights are placed upon them.
Note
Use a level to ensure that the forklift tines are level prior to calibration.
The test weight used to calibrate the CLS-420 cannot be greater than 2500 lbs.
To calibrate the indicator using the front panel, do the following:
1. Place the 420 indicator in setup mode (display reads CONFIG ).
2. Press until the display reads CALIBR (see Figure 6-1).
3. Use a level to level the forklift tines before pressing to go to ANGLEZ .
4. With ANGLEZ displayed and no weight on the forklift, press to zero the scale inclinometer. -CAL- is
briefly displayed on the indicator.
5. With CMZERO displayed press to capture the lead load zero. -CAL- is displayed briefly on the indicator.
6. The indicator then asks for the WVAL (weight value). Enter the weight of the test weight to be used in the
calibration procedure by pressing the enter key and then keying in the weight value using the numeric
keypad. Then press enter again.
7. CMCEL1 is displayed.
8. Put the test weight on the left tine of the forklift
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and press . -CAL- is briefly displayed.
9. Once -CAL- is displayed, the indicator display automatically jumps to CMCEL2 . Move test weight to the
other tine. Press and -CAL- is briefly displayed.
10. At this time the display says -PASS- or -FAIL- . If the display says PASS , it is followed by CALIBR and the
calibration procedure is complete.
11. If the display says -FAIL- , then the display goes back to CMZERO and the calibration procedure must be
started over.