What to do if the display suddenly disappeared in operation on KERN EW?
If the display on your KERN Scales suddenly disappears during operation, examine the built-in battery, the AJDP board, and the AC adapter to identify any potential issues.
Why does the display not get settled down on KERN EW Scales?
If the display of your KERN Scales does not settle down, doesn't repeat correctly, or the zero point drifts, inspect the stopper parts, check for any interference with the weighing pan, look for any foreign substances, and examine the tuning-fork sensor. Also, consider the impact of wind or oscillation on the scales.
How to check span is out of specified range for KERN Scales?
If the span is out of the specified range on your KERN Scales, examine the tuning-fork sensor, the AJDP board, the address data, and the coefficient memories.
How to check linearity is out of specified range for KERN EW?
If the linearity is out of the specified range on your KERN Scales, check the tuning-fork sensor, address data, coefficient memories, and the calibration weight.
How to fix no display lights on KERN EW Scales?
If the display lights are not turning on for KERN Scales, examine the AJDP board, AC adapter, connection cords, or battery.
What to do if o-Err appears with a net load less than specified capacity on KERN EW?
If an 'o-Err' appears on your KERN Scales with a net load less than the specified capacity (F.S. +9d), check the applied gross weight, coefficient memories, address data, or calibration weight.
What to do if u-Err or o-Err appears self test of segments on KERN Scales?
If 'u-Err' or 'o-Err' appears during the self-test of segments on your KERN Scales, check the weighing pan, tuning-fork sensor, AJDP board, address data, or coefficient memories.
How to resolve corner error is too much on KERN EW?
If the corner error is too much on your KERN Scales, inspect the mechanism unit and the pan base.
Overview of EW type models with capacities up to 12000g.
Overview of EG type models with capacities up to 4200g.
Visual representation of electronic components and connections.
Complete wiring schematic for the electronic system.
Systematic steps for diagnosing and resolving issues.
Lists common symptoms, causes, and remedies.
Procedure for calibrating the scale's span.
Steps to adjust for corner errors on the weighing pan.
Procedure for resetting stored address data or coefficients.
Steps to perform linearity adjustment on the scale.
Instructions on how to detach the scale's outer casing.
Overview of the procedure for replacing the mechanism unit.
Overview of the procedure for replacing the AJDP circuit board.
Instructions for installing an optional battery.
Parts list for the EW 220-1200 model.
Parts list for the EW 2200-12K model.
Parts list for EW-C and EW 120-4 NM models.
General| Display | LCD |
|---|---|
| Minimum part weight at piece counting (Laboratory scale) | 0.1 g |
| Weighing plate material | stainless steel |
| Measuring system | Strain gauge |
| Interface | RS 232 |
| Calibration | External calibration |
| Power Supply | AC adapter or 4xAA batteries |
| Units | g lb oz |
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