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Related Manuals for KERN TEE 150-1
Summary of Contents for KERN TEE 150-1
- Page 1 KERN & Sohn GmbH Ziegelei 1 Tel: +49-[0]7433-9933-0 D-72336 Balingen Fax: +49-[0]7433-9933-149 E-Mail: info@kern-sohn.com Internet: www.kern-sohn.com Service Manual Page 2 Electronic Pocket Balance KERN TEE Version 1.0 4/2008 TEE-SH-e-0810...
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Page 2: Table Of Contents
KERN TEE Version 1.0 4/2008 Service Manual Electronic Pocket Balance Table of Contents Features........................3 Calibration Procedure (CAL) ..................3 Internal Calibration Procedure .................. 3 Functional Block Diagram / Description..............4 4.1 Functional Block Diagram.....................4 4.2 Function Description ......................5 Trouble Shooting ......................6 To Replace PCB ...................... -
Page 3: Features
1 Features • Full Tare • Display segment test function • Negative value indication • Stable indicator • Low battery indicator • Auto zero • Auto off function • Overload protection • Two types of Digital Auto Calibration • Solder pads to prevent end-user internal calibration •... -
Page 4: Functional Block Diagram / Description
4 Functional Block Diagram / Description 4.1 Functional Block Diagram Keyboard L C D Power control / Battery Microprocessor Regulator & 2 x AAA Low battery detector digital signal Load cell Amplifier A/D Converter analog (Sensor) signal TEE-SH-e-0810... -
Page 5: Function Description
4.2 Function Description 1. Load cell This is the heart of the whole system. The load cell itself is arranged as a bridge. The resistance change of the bridge elements is proportional to the load applied on the load cell. Therefore, the output of the load cell is an analog signal, which is proportional to the load applied on the scale. -
Page 6: Trouble Shooting
5 Trouble Shooting Power on ↓ Full Segments? If no display, check battery, connection between battery—main board. If missing segments, check fixing of LCD frame, zebra connector under LCD. ↓ Display Zero? If display [LO], check battery >2.5V. If display [ E] , check internal count. ↓... -
Page 7: To Replace Pcb
2. Disconnect wires to PCB. Replace a new PCB. Connect wires to PCB again. 3. Perform internal calibration as described in section 3. 4. Assemble rear housing of scale. 5. Check accuracy of scale at different weight. TEE 150-1 weight Tolorance 0.2g 100g 0.2g... -
Page 8: Schematics
8 Schematics TEE-SH-e-0810... -
Page 9: Components Layout
9 Components Layout TEE-SH-e-0810...