Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Related Manuals for KERN KERN MBB-M series
Summary of Contents for KERN KERN MBB-M series
- 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 Baby weighing scale KERN MBB-M (approval series) Version 1.0 3/2010 MBB-M-SH-e-1010...
-
Page 2: Table Of Contents
KERN MBB-M Version 1.0 3/2010 Service manual Baby weighing scale Table of Contents Basic Information ....................3 Technical Data ....................4 Overview of Display / Keyboard ............... 5 Error Message Indication .................. 6 Trouble Shooting ....................7 Calibration ......................8 Calibration switch and seals ................. -
Page 3: Basic Information
1 Basic Information Grundlegende Hinweise The device must be repaired only by trained specialist staff or personnel with professional formation (such as a repair-specialist accredited by law concerning verification). The service manual is obligatory for repair work. After repair, original conditions of the device have to be restored. Only original spare parts should be used. -
Page 4: Technical Data
2 Technical Data KERN MBB 15K5M MBB 15K2DM Weighing range (max) 15 kg 6 kg; 15 kg Minimum load (Min) 100 g 40 g Verification value (e) 2 g; 5 g Display LCD 24mm digit height 1.0 inch LCD with 5 and ½ digits... -
Page 5: Overview Of Display / Keyboard
3 Overview of Display / Keyboard Display view Display Designation Description Zeroing display Should the balance not display exactly zero despite empty scale pan, press the but- ton. Your balance will be set to zero after a short standby time. Stability display Scales are in a steady state Power supply connected... -
Page 6: Error Message Indication
Keyboard Button Designation Function ON/OFF-switch Turn on/off Zero setting key Balance will be reset to 0.0 kg. Possible up to max. 2% of maximum load for verified scales or 2 % or 100% of maximum load for all other scales (selectable via menu) HOLD button Hold function/Calculation of a stable weight value TARE button... -
Page 7: Trouble Shooting
5 Trouble Shooting MBB-M-SH-e-1010... -
Page 8: Calibration
6 Calibration 6.1 Calibration switch and seals After verification the display device is sealed at the indicated positions. Verification of the balance is invalid without the "seal". Position of the official seals: 1. Rear of display device 2. Battery compartment 3. - Page 9 Position of calibration switch: Position of calibration switch Status 1. to the left Test mode Shows internal count, e.g. 100052 Zero count: 5000 ~ 200000 Span count: 10000 ~ 250000 Note: If the value of internal count is outside the reference value, please change the load cell or the main board.
-
Page 10: Calibration Procedure
6.2 Calibration procedure Observe stable environmental conditions. A warming up time of approx. 10 minutes is required for stabilization. Attention: In calibrated balances the calibration function is switch locked. To carry out calibra- tion, set the switch to calibration position (centre position). (See chpt. 6.1). Display Operation z000... - Page 11 HOLD CAL U Press repeatedly until “CAL 0“ appears. CAL O TARE 30770 Press the display will show a numeric value. Then press CAL O “CAL 0“ appears. HOLD CAL 5 Press “CAL 5“ appears. 12.0 TARE Press Enter the required size of the calibration weight. For this select the digit to be changed HOLD TARE...
-
Page 12: Service Mode
7 Service Mode The balance must be switched over to the service mode. To achieve this, set the calibration switch to calibration position (See chpt. 6.1). In the service mode all parameters of the balance can be modified. 7.1 Navigation in the menu When the scale is switched on, press and hold the [→0←]-key for approx. -
Page 13: Description
7.2 Description Weighing unit: Kg Dividing steps (resolution) and weighing range (max) Selection multi-range scales / single range scales Single-range scales Multi-range scales Filter: Fast / normal / slow Auto Zero Tracking: 0.25d / 0.5d / 1d / 3d / OFF Stabilisation range: 0.25d / 0.5d / 1d / 3d / OFF Zero range: 2% / 100% Overload range: 9d / 2%... -
Page 14: Setting Of Maximum Capacity And Resolution
7.3 Setting of maximum capacity and resolution A selection is made by pressing the [HOLD]-key and the [ TARE]-key Dividing steps (resolution) - standard 3000d - 6.002 15.005 Maximum capacity 30.01 Table 1- Dividing steps 500d 1000d 1500d 2000d 2500d 3000d 6000d 1.002 kg... -
Page 15: Approval Mode - Menu Overview
8 Approval Mode – Menu Overview Menu overview for calibrated scales (calibration switch in verification position) When the scale is switched on, press and hold the [→0←]-key for about 3 seconds until “SETUP“ followed by “A.OFF“ appears. A parameter selection is made by pressing the [ TARE] -key and the [HOLD] key. -
Page 16: Schematics
9 Schematics Main Board CH-0651 MBB-M-SH-e-1010... - Page 17 MBB-M-SH-e-1010...
- Page 18 MBB-M-SH-e-1010...
- Page 19 Power Board CH-0723 Junction Board CH-0725 MBB-M-SH-e-1010...
-
Page 20: System Block Diagram
10 System Block Diagram MBB-M-SH-e-1010... -
Page 21: Display Format
11 Display Format MBB-M-SH-e-1010... -
Page 22: Layout
12 Layout Primary Side of Main Board CH-0651 MBB-M-SH-e-1010... - Page 23 Secondary Side of Main Board CH-0651 MBB-M-SH-e-1010...
- Page 24 Primary Side of Power Board CH-0723 Secondary Side of Power Board CH-0723 Primary Side of Junction Board CH-0725 Secondary Side of Junction Board CH-0725 MBB-M-SH-e-1010...
-
Page 25: Assembly Drawing
13 Assembly Drawing MBB-M-SH-e-1010...