KERN PLS Series User Manual

98 TALJG_A/TALSG_A/TPLJG_A/TPLSG_A-BA-e-2112
Protect from any
damage resulting from any fall, vibrations or impacts,
see the label to the left.
Always use the original power supply. The printed voltage value must be
consistent with the local mains voltage.
Injury hazard, the ion source blades are very sharp.
The ionizing unit generates toxic ozone, ensure appropriate ventilation.
Before you start any maintenance and cleaning, disconnect the ionizing
unit from the mains.
Disconnect the unused ionizing unit from the mains.
CAUTION
Ensure periodic maintenance and cleaning of the ionizing unit.
Ion source cleaning: after 1,000 hours.
Ion source replacement: After 30,000 hours
Starting a damaged ionizing unit may result in a short circuit, fire or
electric shock.
It is prohibited to start it
outdoors and in vehicles. It invalidates all
warranties.
If there are any electromagnetic fields, high readout deviations
(erroneous weighing results) may occur. Discharge the sample at a
relevant distance from the scale.
In the standard mode, the
green LED [POWER] is lit, if the operation is
disturbed, the red LED [ALARM] is lit.
When the red LED is lit, switch the ionizing unit off immediately using the
main switch and then on again. If the red LED is still lit, contact the
manufacturer.
During ionizing, the blue LED [RUN] is lit.
Operation sounds can be heard during the ionizing process.

KERN PLS Series Specifications

General

Weighing plate material	stainless steel
Protection Class	IP65
Readability	0.1g
Reproducibility	0.1 g
Minimum part weight at piece counting	0.1 g
Permissible ambient temperature	40°C
Interface	RS-232

Summary

Technical Specification

Basic Instructions

Intended Use

Specifies the designed purpose and proper usage of the weighing scale.

Non-intended Use

Lists prohibited uses of the scale to prevent damage or erroneous results.

Basic Safety Instructions

Compliance with the Instructions Included in the User Manual

Emphasizes reading the user manual for safe and correct operation of the device.

Personnel Training

States that only trained personnel should operate and maintain the device.

Unpacking, Positioning and Start-up

Installation Place, Operation Place

Details the crucial factors for selecting a suitable location for accurate scale operation.

Unpacking and Check

Power Supply

Operation with Battery Supply (Solely the Model PLS 420-3F)

Adjustment

Adjustment Mode Selection

Guides the user through selecting the appropriate calibration mode for the scale.

Automatic Adjustment Using the Internal Weight

Describes how the scale automatically calibrates itself using its internal weight.

Adjustment Using the Internal Weight after the Model CAL Button is Pressed (Models ALJ/PLJ)

Explains manual adjustment using the internal weight by pressing the CAL button.

Adjustment Using the External Weight

Details the procedure for calibrating the scale using an external weight.

Changing the Weight of the Internal Calibration Weight

Outlines the process for modifying the value of the internal calibration weight.

Adjustment Report Display/Print

Verification

Covers the legal requirements and procedures for scale verification in the EU.

Basic Mode

Switching the Scale On and Off

Ordinary Weighing

Details the standard procedure for performing regular weight measurements.

Taring

Explains how to subtract the weight of a container or subtract the tare weight.

Weighing Using the Under-Scales Weighing Hanger

Main Menu “Applications”

Counting the Number of Pieces

Guides on using the scale to count identical items based on their average weight.

Determining Density Using the Equipment for the Under-Scales Weighing Hanger

Outlines the process for measuring density of solid bodies or liquids using specialized accessories.

Formulation

Guides on weighing ingredients for recipes in specific ratios.

Test Weighing

Describes the application for checking if weights fall within defined tolerance limits.

Determining the Percentage Value

Explains how to check sample weight against a reference weight in percentage terms.

Weighing Animals

Peak Value Function

GLP Function (Good Laboratory Practice)

Error Messages

Maintenance, Service and Disposal

Cleaning

Maintenance and Service

Help for Any Minor Failures

Ionizing Unit (Factory Option for KERN ALJ-A03)

Basic Safety Instructions

Lists essential safety precautions for using the ionizing unit.

Technical Specification

Start

Intended Use

Cleaning