Sartorius Sartorius Basic plus User manual

WBP5007-e95021
Sartorius Basicplus
Service Manual

Page
Exploded-View Diagram 1 4
Exploded-View Diagram 2 6
Exploded-View Diagram 3 8
Auxiliary Service Tools and Equipment 10
General Handling and Operation of the Basicplus Balances in Service 10
Accompanying Literature 10
Function of the Keys 10
Balance Operating Menu 11
Accessing the Balance Operating Menu and Changing the Settings 11
Overview of the Balance Operating Menu-Settings 13
Displaying the Hardware and Software Versions 16
Activating the BPI Mode 16
Adjusting/Calibrating the Balance 17
Adjusting Sequence 17
Adjustment of Overload Stop 18
Checking the Overload Stop 18
Adjusting the Overload Stop 18
Null Indicator 19
Checking the Null Indicator 19
Zero Point Offset Value 20
Checking the Zero Point Offset Value 20
Adjusting the Zero Point Offset Value 20
Preload 21
Checking the Preload 21
Adjusting the Preload 22
Off-Center Load 22
Checking the Off-Center Load 22
Adjusting the Off-Center Load 23
3-Point Adjustment (rough) 23
5-Point Adjustment (fine) 24
Linearity 25
Checking the Linearity 25
Adjusting the Linearity 25
Adjusting the Sensitivity 25
External Adjusting 25
Overwriting the Internal Calibration Weight 26
Internal Adjustment/Calibration 27
Opening and Closing the Balance 27
Opening the Balance 27
Closing the Balance 27
Electronics 28
Exchanging the PCB Set 28
Error Messages 30
Contents

4
Exploded-View Diagram 1

SARTORIUS Basicplus
5
Index Designation
101 Draft shield base plate
102 Weighing pan
103 Draft shield base plate
104 Supporting pan
105 Pan
106 Glass draft shield cylinder
107 Draft shield cover
108 Pan
109 Pan flexures for auto-centering
110 Display unit

6
Exploded-View Diagram 2

SARTORIUS Basicplus
7
Index Designation
201 Supporting pan
202 Strain gauge
203 Leveling foot
204 PCB set

8
Exploded-View Diagram 3
- Single-Casting Block System

SARTORIUS Basicplus
9
Index Designation
301 Side glass
302 Glass
303 Top glass
304 Post grip

10
Auxiliary Service Tools and Equipment
Caution: Any persons servicing or working on Sartorius Basicplus Balances should
possess the necessary skills and experience, have completed a Service
Course at the headquarters in Goettingen, and use the auxiliary service tools
and equipment described below. Please do not attempt or permit any
unauthorized repair work!
Important note: If you remove the seals (warranty stickers), you will forfeit all warranty
claims.
Make sure to use the proper tools and equipment when servicing or repairing
the balance. Also make sure that the balance is set up on a solid, level
surface and in a clean work area that is free of vibrations and drafts.
In addition to the tools you regularly use, you will need the following weight
sets to work on the Sartorius Basicplus Balances:
Weights required:
Qty./Set. Designation Order No.
1 Service weight set Class F1 YSS 3138-6538
1 Service weight set Class F1 YSS 5128-6528
1 Analysis weight set Class E2 YCS 01-522
General Handling and Operation of Basicplus
Balances in Service
Accompanying Literature
Spare Parts List for Sartorius Basicplus
Adjustment/Calibration data sheets for Basicplus Balances
Sartorius Tools List
General Handling Instructions for the Sartorius MC1 Server
Interface Description for the Sartorius Basicplus
Function of the Keys
ON-OFF key
Key for deletion, or for interruption of prog. sequences
Adjustment/calibration key
Function key - calls the selected application program
Print key
Tare key

SARTORIUS Basicplus
11
Balance Operating Menu
Accessing the Balance Operating Menu and Changing the Settings
Access the Menu » « » «
-Switch the balance off and back on again by pressing .
-While all segments are lighted in the display, briefly press .
-“1“ is displayed.
Note:
If “ -1“ is displayed, this indicates that the operating menu is blocked by the
menu access switch.
The menu access switch is located at the back of the balance
(see figure at the left).
In order to make changes in the menu code settings, move the switch to the
right.
Selecting a Code Setting » « » «:
-Press to select the desired number. Numbers increase by one with
each press and go from 9 back to 1 again (1, 2, 3 ... 8, 9, 1 .2..).
-Press to move from the first code number to the second and third
numbers (1st - 2nd - 3rd - 1st etc.).
Changing a Setting » «:
-Press to confirm the new setting. A “ ° “ appears after the new
setting, e.g., “ 3-1-3° “.

12
Save Setting and Quit, » « » « » « and Quitting without
Saving » «:
-When you are ready to exit the operating menu, press . This returns
you to the first position in the balance operating menu.
Note:
Once you have quit the the operating menu, you should always block access
to the menu with the menu access switch. Move the switch to the left and
replace the cover plate.
-Press to store the new settings and exit the menu.
-Press to exit without storing the changes.

SARTORIUS Basicplus
13
Balance Operating Parameters
REL 8.02 REL 13.01 Version Basicplus
1 1 Weighing Mode
1 1 1 1 Adapting the Balance to Ambient Conditions
1 1 1 1 1 1 Very stable conditions
1 1 2 1 1 2 Stable conditions
1 1 3 1 1 3 Unstable conditions
1 1 4 1 1 4 Very unstable conditions
1 2 1 2 Standard Weighing Mode - Manual Filling Mode
1 2 1 1 2 1 Standard weighing mode
1 2 2 1 2 2 Manual filling mode
1 3 1 3 Stability Range
1 3 1 1 3 1 ¼digit
1 3 2 1 3 2 ½digit
1 3 3 1 3 3 1digit
1 3 4 1 3 4 2digits
1 3 5 1 3 5 4digits
1 3 6 1 3 6 8digits
1 5 1 5 Tare Parameter
1 5 1 1 5 1 Without stability
1 5 2 1 5 2 With stability
1 6 1 6 Auto Zero Function
1 6 1 1 6 1 ON
1 6 2 1 6 2 OFF
1 7 1 7 1st Weight Unit
1 7 11 7 1User-definable o
1 7 21 7 2
Grams
g
1 7 31 7 3Kilograms kg
1 7 41 7 4
Carats
ct
1 7 51 7 5
Pounds
lb
1 7 61 7 6
Ounces
oz
1 7 71 7 7Troy ounces ozt
1 7 81 7 8Hong Kong taels tl
1 7 91 7 9Singapore taels tl
1 7 10 1 7 10 Taiwanese taels tl
1 7 11 1 7 11
Grains
GN
1 7 12 1 7 12 Pennyweights dwt
1 7 13 1 7 13 Milligrams mg
1 7 14 1 7 14 Parts per pound o
1 7 15 1 7 15 Chinese taels tl
1 7 16 1 7 16 Mommes m
1 7 17 1 7 17 Austrian carat k
1 7 18 1 7 18 Tola t
1 7 19 1 7 19 Baht b
1 7 20 1 7 20 Mesghal m
1 8 2 Display Mode Selection
1 8 1 Highest accuracy
1 8 2 Last numeral blanked when load changes
1 8 3 Rounding factor 2
1 8 4 Rounding factor 5
1 8 5 Rounding factor 10
1 9 1 9 Adjustment/Calibration Functions
1 9 1 1 9 1 External calibration
1 9 2 External calibration with recognition of the calibration weights
1 9 3 1 9 3 Internal calibration
1 9 4 1 9 4 Checking the internal calibration weights
1 9 5 ext. Linearisieren
1 9 6 int. Linearisieren
1 9 5 1 9 7 Function blocked
2 2
Applications
2 1 2 1 Application
2 1 1 2 1 1 No application

14
Balance Operating Parameters
REL 8.02 REL 13.01 Version Basicplus
2 1 2 2 1 2 Toggle between weight units
2 1 4 2 1 4 Counting
2 1 5 2 1 5 Weighing in percent
2 1 6 2 1 6 Tare memory
2 1 7 Animal weighing
2 5 2 5 Display Mode
2 5 1 2 5 1 – – without stability
2 5 2 2 5 2 Normal display
3 3 Application Parameters
3 1 3 1 2nd Weight Unit
3 1 1 3 1 1 User-definable o
3 1 2 3 1 2
Grams
g
3 1 3 3 1 3 Kilograms kg
3 1 4 3 1 4
Carats
ct
3 1 5 3 1 5
Pounds
lb
3 1 6 3 1 6
Ounces
oz
3 1 7 3 1 7 Troy ounces ozt
3 1 8 3 1 8 Hong Kong taels tl
3 1 9 3 1 9 Singapore taels tl
3 1 10 3 1 10 Taiwanese taels tl
3 1 11 3 1 11
Grains
GN
3 1 12 3 1 12 Pennyweights dwt
3 1 13 3 1 13 Milligrams mg
3 1 14 3 1 14 Parts per pound o
3 1 15 3 1 15 Chinese taels tl
3 1 16 3 1 16 Mommes m
3 1 17 3 1 17 Austrian carat k
3 1 18 3 1 18 Tola t
3 1 19 3 1 19 Baht b
3 1 20 3 1 20 Mesghal m
3 2 2 Display Mode Selection
3 2 1 Highest accuracy
3 2 2 Last numeral blanked when load changes
3 2 3 Rounding factor 2
3 2 4 Rounding factor 5
3 2 5 Rounding factor 10
3 5 3 5 Wertübernahme
3 5 1 3 5 1 with display accuracy
3 5 2 3 5 2 with full accuracy
3 6 3 6 Display Parameter for Readouts in Percent
3 6 1 3 6 1 without a decimal place
3 6 2 3 6 2 with one decimal place
3 6 3 3 6 3 with two decimal places
3 6 4 3 6 4 with three decimal places
3 7 Delayed Start Mode Animal Weighing
3 7 1 slightklein
3 7 2 average
3 7 3 considerable
3 8 Start Animal Weighing
3 8 1 Manual mode
3 8 2 Automatic mode
5 5 Interface Parameters
5 1 5 1
Baud rate
5 1 1 5 1 1 150 baud
5 1 2 5 1 2 300 baud
5 1 3 5 1 3 600 baud
5 1 4 5 1 4 1200 Baud
5 1 5 5 1 5 2400 baud
5 1 6 5 1 6 4800 baud
5 1 7 5 1 7 9600 baud
5 1 8 5 1 8 19200 baud
5 2 5 2
Parity
5 2 1 5 2 1 Mark Parity
5 2 2 5 2 2 Space Parity

SARTORIUS Basicplus
15
Balance Operating Parameters
REL 8.02 REL 13.01
Version Basic
plus
523 523 Odd Parity
524 524 Even Parity
5 3 5 3 Number of Stop Bits
531 531 1 Stop bit
532 532 2 Stop bits
5 4 5 4
Handshake
541 541 Software handshake
542 542 Hardware handshake 2 char. after CTS
543 543 Hardware handshake 1 char. after CTS
6 6
Utilities
6 1 6 1 Data Output Parameter
611 611 Individual printout without stability
612 612 Individual printout after stability
613 613 Individual printout at stability
614 614 Autoprint without stability
615 615 Autoprint after stability
6 2 6 2 Automatic Data Output
621 621 Autoprint by pressing key stoppable
622 622 Autoprint not stoppable
6 3 6 3 Automatic Data Output at Defined Intervals
631 631 After 1 display update
632 632 After 2 display updates
6 4 Auto Tare after Data Output
641 off
642 on
7 7 Additional Utilities
7 1 7 1 Automatic Output of Application Program Parameters
711 711 OFF
712 712 ON
7 2 7 2 Data output Format
721 721 Without data ID code
722 722 With data ID code
7 3 7 3 Auto Tara Output/Printing
731 731 Last net weight
732 732 Total tare weight
8 8 Additional Functions
8 1 8 1 Access to Menu
811 811 Accessible
812 812
Readable
8 3 8 3
Key Function
831 831 Accessible
832 832
Blocked
8 4 8 4 Universal Switch for Remote Control
841 841 Print
842 842 Tare
843 843 Adjustment/Calibration
844 844 F Key
845
CF Key
8 5 Power-On Mode
851 off - on - standby
853 on - standby
854 auto. power on (remote control)
8 6 Power-On Mode
861 off - on - standby
863 on - standby
864 auto. power on (remote control)
814 810 GLP/GMP Printout
814 1 8 10 1OFF
814 2 8 10 2automatic power-on
810 3ON
9 9 Reset Function
9– – 1 9 – – 1on
9– – 2 9 – – 2off

16
Displaying the Hardware and Software Versions
-Switch the balance off and back on again using the key..
-While all display segments are lit, briefly press the key; the display
is now as indicated in the figure at the left.
-This display remains for about 3 seconds.
-The first two numbers show the hardware generation; the last two, the
software version.
-The display then returns to the normal mode.
Activating the BPI Mode
Note: In order to use the CAS programs with the Sartorius MC1 Server (version 4.4
and later), the balance must be set to the BPI mode ( Binary Protocol Interface
mode) (e.g., for linearization or when replacing the PCB).
-Switch the balance on using the key and wait for the self-test to run,
i.e. until “0.00 g“ (depending on the balance used) is displayed.
-Remove the cover stopper from the back of the balance, located to the
right of the power jack (see the figure at the left).
-The BPI switch is now accessible. Press the BPI switch once, e.g. with a
ball-point pen, and hold it in.
-With this button pressed, a 12 volt current is applied to the balance
processor, which deactivates the write-protect on the EEPROM.
-The segment check is now displayed periodically.
-Wait until the segment check has lit up at least 3 times; now the balance
electronics are in the BPI mode.
-Release the BPI switch; the display now returns to the normal mode.

SARTORIUS Basicplus
17
- Close the back of the balance with the cover stopper.
- You can now use the balance together with the Sartorius MC1 Server or
the CAS Program for Personal Computers.
Caution: After working in the BPI Mode, make sure to set the write-protect again (with
the CAS Program for the Sartorius MC1 Server (version 4.4 and later)), so that
the Basicplus balance returns to the standard data record output mode
(SBI = Sartorius Balance Interface).
If the balance is in the BPI mode when you press the key, the error
code ERR 30 will be displayed. You cannot run the peripheral devices until
you set the balance back to the SBI mode.
Adjusting/Calibrating the Balance
Preparation:
Place the balance on a stable surface. e.g. a stone table, level it using the
level indicator, and allow at least 4 hours warm-up time. Adjust the balance at
this location.
Adjusting Sequence
You will need to check and, if necessary, adjust the following factors, in the
order given, any time the balance is moved to a new location and after any
servicing or repair work:
Basicplus Balances with the Strain Gauge System
1. Overload stops
2. Zero point offset value
3. Off-center load
4. External linearity
5. External adjustment/calibration
Basicplus Balances With Electromagnetic Force Compensation Systems
1. Null Indicator
2. Preload
3. Off-center load
4. External linearity
5. External adjustment/calibration
6. Overwriting the internal calibration weight

18
Adjustment of overload Stop
The overload stop only needs to be checked after the strain gauge system is
replaced.
Checking the Overload Stop
- Open the balance (see page 27).
- The gap between the overload stop (202a) and the lower end position on
a non-loaded system can be up to (202,205):
0,1g strain gauge system (202) (e.g. BP 610) 0,4mm to (maximum 0,5mm)
1g strain gauge system (205) (e.g. BP 4100) 0,7mm to (maximum 0,8mm)
- Check this gap with the appropriate gauge.
- If the gap exceeds the given tolerance range, adjust it as described below.
- If the position of the overload stop is correct, proceed with the following
adjustments:
Zero point offset value (see page 20),
Off-center load (see page 22),
Linearity (see page 25) and
External adjustment/calibration (see page 25).
Adjusting the Overload Stop
- Open the balance (see page 27).
- Loosen the nut (202b) for the overload stop so that the overload stop can
be moved.
- With the balance unloaded, move the overload stop (202a) so that the
gap between the overload stop (202a) and the lower end position is:
0,1g strain gauge system (202) (e.g. BP 610) 0,4mm to (maximum 0,5mm)
1g strain gauge system (205) (e.g. BP 4100) 0,7mm to (maximum 0,8mm)
- Check this gap while adjusting, using the appropriate gauge.
- Once the gap is correct, fix the overload stop (202a) in this position by
tightening the nut (202b).
- Then check the overload stop (202a) again as described above.
- If the position of the overload stop is correct, proceed with the following
adjustments:
Zero point offset value (see page 20),
Off-center load (see page 22),
Linearity (see page 25) and
External adjustment/calibration (see page 25).

SARTORIUS Basicplus
19
Null Indicator
Checking the Null Indicator
Important note: Never change the position of the null indicator! Even when the lever is
removed, the null indicator does not require adjustment.
Procedure:
- Open the balance (see page 27).
- Connect the digital voltmeter between pin 7 of the IC 101 on the analog
PCB (204b) and the ground (⊥).
- Set the measuring range of the digital voltmeter to 20 V DC.
- Switch the balance back on.
- The lever (E) must be able to move freely between the upper and lower
stops (F, G).
- Carefully move the lever (E) against the lower and upper stops (F, G).
- The following voltages should be read at the null indicator output port:
approx. - 2.5 V when the level stabilizes, and approx. ± 1 V (relative to
the voltage at the stabilization point) when the lever reaches the stops.
Example: - 1.63 V ... - 2.47 V ... - 3.58 V
If the difference in voltage at the upper and lower stops is not symmetric, or if
the lever pulls toward the upper or lower stop when the balance is switched
on, this might indicate a mechanical or electrical error.
- If the voltage readings at the stabilization point and at the upper and lower
stops are correct, we recommend checking (and, if necessary, adjusting)
the preload (see page 25) before you close the balance
(see page 27).

20
Zero Point Offset Value
(Strain Gauge System)
Checking the Zero Point Offset Value
Always check the zero point offset value after installing a new strain gauge
system (see page 25) or when the zero point offset changes as a result of
mechanical influences.
- The data for zero point offset tests weights and zero point offset voltage are
contained in the “Adjustment/Calibration Data Sheet for Basicplus Balances“.
- Open the balance (see page 27).
- Set the overload stops (see page 18).
Procedure:
- Connect the digital voltmeter between pin 6 of the IC 106 on the analog
PCB (204b) and the ground (⊥).
- Set the measuring range of the digital voltmeter to 2 V DC; remove the
weighing pan and, if necessary, the pan support (104 or 201).
- Switch the balance on.
- Compare the values displayed on the digital voltmeter with those given in
the “Adjustment/Calibration Data Sheet for Basicplus Balances“ for zero
point offset values.
If the values shown are different from those given in the “Adjustment/
Calibration Data Sheet for Basicplus Balances“, the zero point offset value must
be readjusted.
- If the values shown are within the tolerance range given, close the balance
before proceeding with the other adjustments (off-center load, linearity,
adjustment/calibration) (see page 27).
Adjusting the Zero Point Offset Value
This adjustment is necessary after a new strain gauge system is installed, or
when the zero point offset changes as a result of mechanical influences.
- Switch off the balance and disconnect it from the power supply.
- The test procedure is the same as for checking the zero point offset value.
- Close the LB1,3 solder bridge and open LB1,1 and LB1,2 on the analog
PCB (204b) (see page 25).