KERN DLT-N User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail: [e-mail]
Phone: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com
Operating manual
Electronic Moisture Analyser
KERN DLT-N
Version 2.1
12/2014
GB
DLT_N-BA-e-1421

2 DLT_N-BA-e-1421
GB
KERN DLT-N
Version 2.112/2014
Operating manual
Electronic Moisture Analyser
Contents
1Technical data................................................................................................ 5
2Appliance overview ....................................................................................... 7
2.1 Overview...............................................................................................................................7
2.2 Tablet ....................................................................................................................................8
3Basic instructions.......................................................................................... 9
3.1 Proper use ............................................................................................................................9
3.2 Improper Use........................................................................................................................9
3.3 Warranty ...............................................................................................................................9
3.4 Monitoring of Test Resources .............................................................................................9
4Basic Safety Precautions............................................................................ 10
4.1 Pay attention to the instructions in the Operation Manual...............................................10
4.2 Personnel training..............................................................................................................10
4.3 Danger Information ............................................................................................................10
5Transport and storage................................................................................. 12
5.1 Testing upon acceptance...................................................................................................12
5.2 Packaging / return transport..............................................................................................12
6Unpacking, Setup and Commissioning ..................................................... 12
6.1 Installation Site, Location of Use.......................................................................................12
6.2 Unpacking and placing ......................................................................................................14
6.3 Scope of delivery / serial accessories...............................................................................15
6.4 Connections .......................................................................................................................16
6.5 Mains connection...............................................................................................................19
6.6 Commissioning ..................................................................................................................19
6.7 Call-up weighing mode ......................................................................................................24
6.8 Connection of peripheral devices......................................................................................24
6.9 Adjust balance....................................................................................................................25

DLT_N-BA-e-1421 3
7Operating elements ..................................................................................... 27
7.1 Start screen ........................................................................................................................27
7.2 Work screen........................................................................................................................29
8Simple weighing / taring.............................................................................. 30
8.1 Weighing:............................................................................................................................30
8.2 Taring:.................................................................................................................................30
8.3 Default tare (pre tare) .........................................................................................................30
9User profile................................................................................................... 31
10 Setup menu .................................................................................................. 32
10.1 Heating module settings....................................................................................................33
10.2 Balance settings.................................................................................................................35
10.3 Peripheral equipment.........................................................................................................36
10.4 Adjustment .........................................................................................................................37
10.5 Colour of display................................................................................................................38
10.6 Service menu......................................................................................................................39
11 Drying parameters....................................................................................... 40
11.1 Setting the drying parameters manually...........................................................................40
11.1.1 Setting the heating profile .................................................................................................... 41
11.1.2 Shutoff criterion.................................................................................................................... 44
11.1.3 Preheating (before weighing-in)........................................................................................... 46
11.1.4 Weighing assistance............................................................................................................ 47
11.1.5 Result display....................................................................................................................... 49
11.2 Save drying parameters in database.................................................................................51
11.2.1 Creating a new drying program (data record):..................................................................... 52
11.2.2 Change / delete drying programs (data record)................................................................... 53
12 Carrying Out Measurement......................................................................... 54
13 Call up / edit / delete measurement results............................................... 64
13.1 Calling measurement results.............................................................................................64
13.2 Changing / deleting measurement results ........................................................................65
14 GLP ............................................................................................................... 66

4 DLT_N-BA-e-1421
15 General information concerning moisture analysis ................................. 68
15.1 Application .........................................................................................................................68
15.2 Basics .................................................................................................................................68
15.3 Adjustment to existing measuring method.......................................................................68
15.4 Preparing a sample ............................................................................................................69
15.5 Sample material..................................................................................................................70
15.6 Sample size / originally weighted in quantity....................................................................70
15.7 Drying temperature ............................................................................................................71
15.7.1 Surface of the sample:......................................................................................................... 71
15.7.2 Colour of sample:................................................................................................................. 71
15.7.3 Availability of volatile substances:........................................................................................ 71
15.8 Recommendations / Guidelines.........................................................................................71
15.8.1 Prepare standard sample:.................................................................................................... 71
15.8.2 Prepare special samples:..................................................................................................... 71
15.8.3 Table of applications:........................................................................................................... 72
16 Servicing, maintenance, disposal .............................................................. 76
16.1 Cleaning..............................................................................................................................76
16.2 Servicing, maintenance......................................................................................................76
16.3 Disposal..............................................................................................................................76
17 Instant help................................................................................................... 77

DLT_N-BA-e-1421 5
1 Technical data
Data DLT 100-3
Radiator Halogen (1 x 400 W)
Temperature range 35°C - 160°C
Choice of steps at 1°C
Maximum load (Max) 160 g
Warm-up time 2 h
Minimum for drying 0.5 g
Readability (d) Weighing mode 0.001g
Moisture analysis mode 0.01 %
Reproducibility Weighing mode 0.001g
Moisture analysis mode 0.03 %
(Initial weight 10 g)
Preheating before weighing-in

Linearity ± 0.002 g
Stabilization time (typical) 3 sec.
Recommended adjustment
weight, not added (class) 100g (E2)
Environmental conditions •5°C….+35°C ambient temperature
•45% - 75% air humidity non-condensing
Heating profiles
Standard drying
Step-by-step drying
Quick drying
Gentle drying
Result display
[g] residual weight
[% M] moisture
[% R] dry mass
[% A] ATRO

6 DLT_N-BA-e-1421
Shutoff criterion
•Manual
Press stop button
•Time
Drying is finished after the set time, adjustable 1 – 99
minutes
•Autostop %
when the set weight loss (%) per time unit is lower
than the nominal value (both values adjustable)
•Autostop absolute
when the set weight loss (mg) per time unit is lower
than the nominal value (both values adjustable)
Data base for
drying programs 300 positions
Interface RS 232C
Dimensions of the housing
moisture analyser (B x D x
H) 210 x 340 x 225 mm
Available
drying room Ø 100 mm, 20 mm high
Dimensions tablet
(B x D x H) 195 x 120 x 10 mm
Sample dishes included Ø 100 mm
Net weight 4.5 kg
Electric Supply 220 – 240 V AC 50/60 Hz
Mains adapter moisture
meter 9 V DC, 1000 mA
Mains adapter tablet 5.2 V 1.35 A

DLT_N-BA-e-1421 7
2 Appliance overview
The instrument comprises a drying unit (integrated balance + heating module) and a
tablet serving as terminal.
2.1 Overview
Pos. Designation
1 Sample chamber
Drying unit
2 Halogen lamp
3 Temperature sensor
4 Sample dish
5 Heating module
6 Balance
7 Levelling screw
8 Table mount
Terminal
9 Tablet

8 DLT_N-BA-e-1421
2.2 Tablet
Front side:
Rear side:
1 Touch screen 1 Audio loudspeaker
2 Front camera 2 Volume key
3 On / off key
4 Loudspeaker / headset port
5 Microphone
6 Micro USB 2.0 port
7 Rear camera
8 MicroSD card slot

DLT_N-BA-e-1421 9
3 Basic instructions
3.1 Proper use
The instrument purchased by you is designed for a fast and reliable determination of
material moisture in liquid, porous and solid materials by applying the method of
thermogravimetrics.
3.2 Improper Use
Impacts and overloading exceeding the stated maximum load (max) of the
instrument, minus a possibly existing tare load, must be strictly avoided.
Balance may be damage by this.
Never operate instrument in explosive environment. The serial version is not
explosion protected.
The structure of the balance may not be modified. This may lead to incorrect
weighing results, safety-related faults and destruction of the moisture analyser.
The moisture analyser may only be used according to the described conditions.
Other areas of use must be released by KERN in writing.
3.3 Warranty
Loss of warranty due to
•Our conditions in the operation manual are ignored
•The appliance is used outside the described uses
•Modification or opening of the instrument
•Mechanical damage and damage caused by media, liquids
•Natural wear and tear
•The appliance is improperly set up or incorrectly electrically connected
•The measuring system is overloaded
3.4 Monitoring of Test Resources
In the framework of quality assurance the measuring-related properties of the
moisture analyser and, if applicable, the testing weight, must be checked regularly.
The responsible user must define a suitable interval as well as type and scope of this
test. 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. In KERN's accredited DKD calibration laboratory test weights and balances may
be calibrated (return to the national standard) fast and at moderate cost.

10 DLT_N-BA-e-1421
4 Basic Safety Precautions
4.1 Pay attention to the instructions in the Operation Manual
Carefully read this operation manual before setup and
commissioning, even if you are already familiar with KERN balances.
All language versions contain a non-binding translation.
The original German is binding.
4.2 Personnel training
The instrument may only be operated and maintained by trained personnel.
4.3 Danger Information
WARNING
!
The moisture analyser is used to analyse the moisture content of materials.
This instrument must be used exclusively for this purpose. Any other usage
may cause a risk to personnel, damage to the instrument or other material
damage.
!
The moisture analyser should be used mainly for the drying of aqueous
substances.
!
The moisture analyser may not be used in a hazardous area.
!
The instrument may only be operated and maintained by trained personnel.
!
Carefully read this operation manual before setup and commissioning, even if
you are already familiar with KERN instruments.
Hazards during and after measuring
!
Ensure correct installation of all components, see chap. 6.2
!
Careful when removing the sample. The sample itself, the sample dish and the
heating unit may be very hot.
!
Use the sample retainer at all times as it allows safe working and prevents
burns.
!
Individual parts of the case (e. g. the ventilation grids) may heat up
considerably during operation. Therefore, only take hold of the instrument by
the marked handles.