KERN PLS User Manual

GB
KERN PLS/PLJ/ALS/ALJ
Version 1.9 03/2008
Operating Instructions
Electronic precision and analytical balance
Contents
1 Technical Data_________________________________________________ 37
2 Declaration of conformity _______________________________________ 41
3 Fundamental information (general)________________________________ 43
3.1 Intended Use ____________________________________________________ 43
3.2 Inappropriate use ________________________________________________ 43
3.3 Guarantee ______________________________________________________ 43
3.4 Monitoring the test substances_____________________________________ 44
4 Fundamental safety information __________________________________ 44
4.1 Observe the information in the operating instructions__________________ 44
5 Transport and storage __________________________________________ 44
5.1 Acceptance check _______________________________________________ 44
5.2 Packaging ______________________________________________________ 44
6 Unpacking, installation and commissioning ________________________ 45
6.1 Place of installation, place of use ___________________________________ 45
6.2 Unpacking ______________________________________________________ 45
6.2.1 Installation __________________________________________________________ 46
6.2.2 List of items supplied __________________________________________________ 47
6.3 Mains supply____________________________________________________ 47
6.4 Connection of peripheral equipment ________________________________ 47
6.5 Initial start-up ___________________________________________________ 47
6.5.1 Power display ________________________________________________________ 47
6.5.2 Stability display_______________________________________________________ 47
6.5.3 Balance zero-display __________________________________________________ 48
6.5.4 Auto-zero-function ____________________________________________________ 48
6.6 Adjustment _____________________________________________________ 48
6.6.1 Adjusting with internal weight (only PLJ/ALJ) ________________________________ 49
6.7 Adjusting with external weight (only PLS/ALS)________________________ 49
6.8 Verification _____________________________________________________ 50
6.9 Under floor weighing _____________________________________________ 51
PLS/PLJ/ALS/ALJ-BA-e-0819
3
5

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