Table of Contents
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Tabel of contents:
1
Technical data _________________________________________________ 30
2
Declaration of conformity _______________________________________ 34
3
Fundamental information (general)________________________________ 35
3.1
Intended use ____________________________________________________ 35
3.2
Inappropriate use ________________________________________________ 35
3.3
Guarantee ______________________________________________________ 35
3.4
Monitoring the test substances_____________________________________ 36
4
Fundamental safety information __________________________________ 36
4.1
Observe the information in the operating instructions__________________ 36
4.2
Staff training ____________________________________________________ 36
5
Transport and storage __________________________________________ 36
5.1
Acceptance check _______________________________________________ 36
5.2
Packaging ______________________________________________________ 36
6
Unpacking, installation and commissioning ________________________ 37
6.1
Place of installation, place of use ___________________________________ 37
6.2
Unpacking ______________________________________________________ 37
6.2.1
Installation __________________________________________________________ 37
6.2.2
List of items supplied __________________________________________________ 38
6.3
Mains supply ____________________________________________________ 38
6.4
Battery Operation ________________________________________________ 38
6.5
Connecting peripheral equipment __________________________________ 39
6.6
Initial start-up ___________________________________________________ 39
6.7
Adjustment _____________________________________________________ 39
6.8
Adjusting _______________________________________________________ 39
6.9
Underfloor weighing______________________________________________ 40
KERN 440
Version 3.4 01/2006
Operating Instructions
Precision balance
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Table of Contents
Related Manuals for KERN KERN 440
Summary of Contents for KERN KERN 440
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Page 1: Table Of Contents
KERN 440 Version 3.4 01/2006 Operating Instructions Precision balance Tabel of contents: Technical data _________________________________________________ 30 Declaration of conformity _______________________________________ 34 Fundamental information (general)________________________________ 35 Intended use ____________________________________________________ 35 Inappropriate use ________________________________________________ 35 Guarantee ______________________________________________________ 35 Monitoring the test substances_____________________________________ 36... - Page 2 Operation _____________________________________________________ 41 Overview of display ______________________________________________ 41 Weighing _______________________________________________________ 41 Taring__________________________________________________________ 41 Plus / Minus Weighings ___________________________________________ 42 Piece counting __________________________________________________ 42 Gross-total Weighings ____________________________________________ 43 Percentage weighing _____________________________________________ 43 Weighing units __________________________________________________ 44 Rear illuminated display __________________________________________ 45 Settings ______________________________________________________ 46 Menu structure:__________________________________________________ 46 Dosage und Zero-tracking _________________________________________ 47...
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Page 3: Technical Data
1 Technical data KERN 440-21N 440-21A 440-33N Readout 0,001 g 0,001 g 0,01 g Weighing range 40 g 60 g 200 g Taring range (subtractive) 40 g 60 g 200 g Reproducibility 0,001 g 0,001 g 0,01 g Linearity ±0,003 g ±0,003 g ±0,0 2 g Min. - Page 4 KERN 440-35N 440-35A 440-43N 440-45N Readout 0,01 g 0,01 g 0,1 g 0,1 g Weighing range 400 g 600 g 400 g 1000 g Taring range (subtractive) 400 g 600 g 400 g 1000 g Reproducibility 0,01 g 0,01 g 0,1 g 0,1 g Linearity...
- Page 5 KERN 440-47N 440-49N 440-49A Readout 0,1 g 0,1 g 0,1 g Weighing range 2000 g 4000 g 6000 g Taring range (subtractive) 2000 g 4000 g 6000 g Reproducibility 0,1 g 0,1 g 0,1 g Linearity ± 0,2 g ± 0,3 g ±...
- Page 6 KERN 440-51N 440-53N 440-55N Readout 0,2 g Weighing range 4000 g 6000 g 6000 g Taring range (subtractive) 4000 g 6000 g 6000 g Reproducibility 0,2 g Linearity ± 2 g ± 2 g ± 0,6 g Min. weight for counting parts 0,4 g Reference pieces for counting 5, 10, 25, 50...
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Page 7: Declaration Of Conformity
Español acuerdo con las normas siguientes Italiano Dichiariamo con ciò che il prodotto al quale la presente dichiarazione si riferisce è confor- me alle norme di seguito citate. Electronic Balance: KERN 440 Mark applied EU Directive Standards 89/336EEC EMC EN 55022 : 1998+A1 : 2000... -
Page 8: Fundamental Information (General)
3 Fundamental information (general) Intended use The balance you have acquired serves to determine the weighing value of the mate- rial to be weighed. It is intended to be used as a “non-automatic“ balance, i.e. the material to be weighed is manually and carefully placed in the centre of the weighing plate. -
Page 9: Monitoring The Test Substances
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. -
Page 10: Unpacking, Installation And Commissioning
6 Unpacking, installation and commissioning Place of installation, place of use The balance is constructed in such a way that reliable weighing results can be achieved under normal application conditions. By selecting the correct location for your balance, you will be able to work quickly and precisely. -
Page 11: List Of Items Supplied
6.2.2 List of items supplied Standard accessories: • Balance (protective working cover encl.) • Weighing pan • Mains cable • Test weight • Operating instructions • Draft shield (440-21N, 440-21A) Mains supply Electric power supply is by means of the external mains supply circuit. The printed voltage level must comply with the local voltage. -
Page 12: Connecting Peripheral Equipment
Connecting peripheral equipment The balance must be disconnected from the mains before connecting or disconnect- ing additional equipment (printer, PC) to or from the data interface. Only use KERN accessories and peripheral equipment with your balance. These have been ideally coordinated to your balance. Initial start-up A warm-up time of 5 minutes stabilises the measured values after switching on. -
Page 13: Underfloor Weighing
Underfloor weighing Objects which, because of their size or shape, cannot be put on the scale, can be weighed by means of underfloor weighing. Proceed as follows: • Switch off the balance. • Turn the balance over. • Open the cover plate (1) on the base of the balance. •... -
Page 14: Operation
7 Operation Overview of display Weighing Switch the balance on by pressing the key. The balance will show “88888“ for approx. 3 seconds and then change to “0“. Now it is ready for use. Important: If the display does not show “0“ press the key. -
Page 15: Plus / Minus Weighings
Plus / Minus Weighings For instance to control piece-weights, filling process control etc. Switch the balance on by pressing the key, then wait until “0“ is indicated. Place rated weight on the weighing pan and tare on “0“ by pressing the key. -
Page 16: Gross-Total Weighings
Gross-total Weighings Useful when several individual weighing operations should be carried out additively and successively, and when you want to know the total weighed-in weight (gross-total, this means without the weight of the jiffy). Example: Tare a jiffy by pressing the key. -
Page 17: Weighing Units
Weighing units Switch the balance on using the key and wait for ”0“ to be displayed. Press the key until an acoustic signal is heard and “UNIT” is seen on the dis- play. Operate briefly. The set unit will appear on the display. Use the key to choose between the various units (see chart). -
Page 18: Rear Illuminated Display
7.9 Rear illuminated display To choose the backlight mode, please follow the below instruction for the setting: Switch the balance on by pressing the key, then wait until display shows “0”. Press and hold the key until display shows „UNIT“. Press the key 6 times, then „bl“... -
Page 19: Settings
8 Settings Menu structure: Switch the balance on using the key and wait for ”0“ to be displayed. Press the key approximatly 3 sec. to enter in the Setting modus. By pressing the key the different menuoption be showed. By pressing the key a menuoption is selected. -
Page 20: Dosage Und Zero-Tracking
The calibrating weight can be selected from four prescribed nominal values (1/4; 1/2; 3/4 or max.) on the KERN 440 model (also see Table 1, manufacturers settings grey underlayed ). We recommend the selection of as high a nominal value as possible in order to achieve high-grade measuring technique weighing results. -
Page 21: Rs 232 C Data Output Via Interface Rs 232 C
RS 232 C Data output via interface RS 232 C General information As a condition for the data transfer between the balance and a peripheral device (for instance printer, PC ...) both devise have to be set on the same interface parameter (for instance baud rate ...). -
Page 22: Interface Rs 232 C
9 Interface RS 232 C Technical Data 8-bit ASCII Code 1 start bit, 8 data bits, 1 stop bits, no parity bit Baud rate adjustable to, 1200, 2400, 4800 and 9600 baud Miniature plug is necessary (9 PIN D-Sub) When working with an interface correct operation is secured only if the corre- sponding KERN-interface-cable (max. -
Page 23: Au Pc
9.3.3 AU PC Weight readings will be sent automatically and continuously, no matter the weight reading is stable or unstable. e. Stable weight/pieces/percentage format 10 11 12 13 14 15 16 17 CR LF f. “Error” format g. unstable weight/pieces/percentage format CR LF 9.3.4 rE Cr Remote commands s/w/t will be sent from the remote to the balance as ASCII... -
Page 24: Maintenance, Upkeep, Disposal
10 Maintenance, upkeep, disposal 10.1 Cleaning Please disconnect the device from the operating voltage before cleaning. Only use a cloth dampened with mild suds and not aggressive cleaning agents (sol- vents or similar). Please ensure that fluids are not able to get into the device and rub off using a clean, soft cloth. -
Page 25: Troubleshooting
11 Troubleshooting The balance should be switched off for a short time following an interruption in the programme sequence and disconnected from the mains supply. It is then necessary to repeat the weighing process from the beginning. Help: Interruption Possible cause •...