KERN PLS User Manual

3.4 Monitoring the test substances
The metrology features of the balance and any possible available adjusting weight
must be checked at regular intervals within the scope of quality assurance. For this
purpose, the answerable user must define a suitable interval as well as the nature
and scope of this check. Information is available on KERN’s home page (www.kern-
sohn.com) with regard to the monitoring of balance test substances and the test
weights required for this. Test weights and balances can be adjusted quickly and at a
reasonable price in KERN’s accredited DKD calibration laboratory (return to national
normal).
4 Fundamental safety information
4.1 Observe the information in the operating instructions
Please read the operating instructions carefully before erecting and commissioning,
even if you already have experience with KERN balances.
4.2 Staff training
The device may only be operated and looked after by trained members of staff.
5 Transport and storage
5.1 Acceptance check
Please check the packaging immediately upon delivery and the device during
unpacking for any visible signs of external damage.
5.2 Packaging
Please retain all parts of the original packaging in case it should be necessary to
return items at any time.
Only the original packaging should be used for return consignments.
Before despatch, disconnect all attached cables and loose/movable parts.
Apply any intended transport security devices. Secure all parts e.g. weighing plate,
mains power supply etc. against slipping and damage.
PLS/PLJ/ALS/ALJ-BA-e-0819
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KERN PLS Specifications

General

Protection class	IP65
Readability [d]	0.001 g
Readability	0.001 g
Calibration	External
Interface	RS-232

Summary

Operation

Operating elements

Introduces the balance's physical controls and displays.

Weighing

Covers the fundamental weighing operations and procedures.

Taring

Explains how to zero out the weight of a container for net weight measurement.

Parts counting

Details the process of counting identical items based on a reference weight.

Percentage determiation

Explains how to determine a sample's weight as a percentage of a reference.

Functions

Weighing functions

Lists the various weighing modes and applications available.

Troubleshooting

Technical Data

Fundamental safety information

Observe the information in the operating instructions

Emphasizes reading instructions before operation for safety.

Unpacking, installation and commissioning

Place of installation, place of use

Guides on selecting a suitable location for accurate weighing.

Installation

Instructs on leveling the balance using foot screws and bubble level.

Initial start-up

Guides through the first power-on and warm-up procedures.

Adjustment

Explains the necessity and process of adjusting the balance for accuracy.

Verification

Details the official verification process and its legal requirements.

Rear illuminated Display

Keyboard

Details the functions of each key on the balance's keypad.

Simple weighing

Weighing Units

Explains how to switch between different units of measurement.

Parts counting

Percentage determination

Determination of a reference weight by weighing

Determination of a reference weight by numeric entry