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KERN & Sohn GmbH

Ziegelei 1
D-72336 Balingen
E-Mail: [email protected]

Tel: +49-[0]7433- 9933-0
Fax: +49-[0]7433-9933-149
Internet: www.kern-sohn.com

Service manual
Compact balances

KERN FCE

Version 1.0
4/2009
GB

FCE-SH-e-0910

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Содержание FCE 15K5

Страница 1: ...hn GmbH Ziegelei 1 D 72336 Balingen E Mail info kern sohn com Tel 49 0 7433 9933 0 Fax 49 0 7433 9933 149 Internet www kern sohn com Service manual Compact balances KERN FCE Version 1 0 4 2009 GB FCE SH e 0910 ...

Страница 2: ... Functional Block Diagram Description_________________________________ 5 5 1 Functional Block Diagram _________________________________________________ 5 5 2 Function Description _____________________________________________________ 6 6 Trouble Shooting ___________________________________________________ 7 7 To Replace PCB ____________________________________________________ 8 8 To Replace Load Ce...

Страница 3: ...erden Es dürfen nur Originalersatzteile verwendet werden 2 Digital Auto Calibration Procedure 1 Turn balance on and allow the unit to acclimatize and stabilize for 10 minutes 2 Press and hold the TARE key until the display shows CAL and a weight reading The weight reading indicates the correct weight that must be placed on the weighing pan 3 Gently place the correct calibration weight on the cente...

Страница 4: ...ading Fig 1 5 Press ON OFF key once Display will show CAL and then the required calibration weight Place the corresponding calibration weight on the center of the weighing plate 6 The display will now show F and then return to internal counts reading 7 Remove all weights from weighing pan and plug off the power supply 8 Disconnect J1 9 Install the top housing of scale J1 Fig 1 In case E is display...

Страница 5: ...am Description 5 1 Functional Block Diagram FCE SH e 0910 5 digital signal analog signal Microprocessor Power control Regulator Low battery detector Keyboard L C D A D Converter 9V Battery or Adaptor Load cell Sensor Amplifier ...

Страница 6: ...r is using a SIGMA DELTA technique and under the control of the microprocessor 4 Microprocessor The microprocessor control all the functions of the scale such as auto zero A D conversion timings weight calculation and display overload indication low battery indication tare etc 5 Display This is the part where the weight is shown out on the LCD display in digital form The whole display is driven by...

Страница 7: ... LO check battery 7 5v adaptor 9v If display E check internal count Proper readout If unstable reading check weighing plate overload stopper load cell and wires environmental conditions and stable table Correct reading If not accurate perform internal calibration If cannot reach full capacity check weighing plate overload stopper load cell and internal zero point If always zero check internal zero...

Страница 8: ...nal calibration as described in section 3 5 Check accuracy of scale at different weight FCE 3K1 FCE 6K2 FCE 15K5 weight tol weight tol weight tol 1000g 2g 2000g 4g 5000g 10g 2000g 2g 4000g 4g 10000g 10g 3000g 2g 6000g 4g 15000g 10g FCE 30K10 FCE 30K10L FCE 60K20 weight tol weight tol weight tol 10 00kg 0 02kg 10 00kg 0 02kg 20 00kg 0 04kg 20 00kg 0 02kg 20 00kg 0 02kg 40 00kg 0 04kg 30 00kg 0 02kg...

Страница 9: ...stand until they just not touch the bottom plate 4 Assemble the top housing 5 Perform internal calibration as described in section 3 6 Check accuracy of scale at different weight FCE 3K1 FCE 6K2 FCE 15K5 weight tol weight tol weight tol 1000g 2g 2000g 4g 5000g 10g 2000g 2g 4000g 4g 10000g 10g 3000g 2g 6000g 4g 15000g 10g FCE 30K10 FCE 30K10L FCE 60K20 weight tol weight tol weight tol 10 00kg 0 02k...

Страница 10: ...9 Schematics 10 FCE SH e 0910 ...

Страница 11: ...FCE SH e 0910 11 ...

Страница 12: ...10 Components Layout 12 FCE SH e 0910 ...

Страница 13: ...FCE SH e 0910 13 ...

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