Sartorius Combics 1,Combics 2,CISL2U,CAPP.U-***-LU,CAPS.U-***-LU,CIS2U,CIS1U,CISL1U Service Manual
WCI5005-e03104
Service Manual
Sartorius Combics 1 | Combics 2
Models CIS1U | CIS2U | CISL1U | CISL2U
for Combics Indicators
and
Models CAPP.U-...-LU | CAPS.U-...-LU
for Combics Weighing Platforms
including Service Specifications
C
F
REF
O
K
2
Contents
Overview
04 Service Concept
04 General Information
05 When to Use Which Procedure
05 Combics Indicators
07 Overview of the Models
07 Auxiliary Service Tools and Equipment
08 Accompanying Literature
09 Operating Concept
09 Keys below the Display
10 Configuring the Combics
10 Purpose, Features
12 Function of the Keys when Configuring the Menu
12 Printing the Parameter Settings
13 Description of the Equipment
14 Function of the Service Keys and Switches
14 A. Menu Access Switch
14 B. SBI/BPI Key
15 Activating the BPI Mode
15 C. Boot Key
16 Activating the xBPI Protocol
17 Activating the Service Mode
17 Activating the Service Mode
19 Working in the Service Mode
19 Additional Menus in Service Mode
22 Menu Item 1-18:
Entering Calibration/Linearization Weights
22 1-18-1: External User-defined Calibration
Weight (Service Mode not Required)
23 1-18-2 1. Entering 1st Linearization Weight
24 Calibration/Adjustment Routines in Service Mode (General
Information)
25 Valid areas for Use
26 Zone “D”
27 Menu Line 1-9: Calibration/Adjustment Functions
28 1-9-1 External Calibration/Adjustment with Default
Weights
28 1-9-3 External Calibration/Adjustment with User-
defined Weights
30 1-9-5 Internal Linearization (Only for WP1 on COM1 or
UniCOM Ports)
30 1-9-7 External Linearization with User-defined Weights
33 1-9-8 Setting the Preload
34 1-9-9 Clearing the Preload
36 Adjustment without Weights
36 Menu Item 1-19:
Entering the Specifications of the Load Cell(s)
39 Menu Item 1-20: Entering the Geographical Latitude and
Altitude, or the Acceleration of Earth Gravity
40 Entering the Place of Adjustment with Subsequent
Adjustment (Example)
40 Menu Item 1-13: Zero at On
46 Configuring the A/D Converter of the Combics Indicator
(Service Mode)
46 Menu Item 11: A/D Converter Settings (Configuration:
Standard, Trade)
3
47 A/D Converter Configuration (General Information)
47 Notes on A/D Converter Configuration
48 Descriptions of the Individual Menu Items
49 Selecting the Weighing Range Structure
(Menu Item 11-3)
52 Menu Item 9-1: A/D Converter Configuration (Example:
Trade Configuration)
57 Menu Item 9-1: A/D Converter Configuration with Load
Cell(s) Connected (Example: Standard Configuration)
58 Loading the Standard Configuration
(if the Trade configuration is currently loaded)
62 Menu Item 1-19: Entering the Specifications of the Load
Cell(s)
64 Entering the Date of Service
65 Entering the Serial Number of the Combics Indicator
67 Entering the Model Designation of the Combics Indicator
68 Defining Transaction Numbers for Data Records (Weight
Values) which were stored in the Alibi Memory
69 Repairing the Combics Indicator
69 Replacing the Front Panel
70 Blank Display
70 Replacing the Power Cord
71 Replacing the Power PCB
72 Replacing the DC/DC Converter
73 Replacing the A/D Converter
73 Quick-test of the A/D Converter
74 Replacing the Digital PCB
75 Checking the IP67 Protection
75 Torque Values for Cable Glands and Vent Valve
76 Adjusting the Weighing Platform
76 Adjusting the Off-center Load
76 Procedure (Example Illustrated on the Left)
77 Diagram: Determining the Adjustment Resistance
78 Off-center Load Adjustment: 0-ohm Resistors (Example)
79 Setting the Overload Stops
79 1. Weighing Platforms with 1 Load Cell: Steel
80 2. Weighing Platforms with 1 Load Cell: Stainless Steel
81 3. Weighing Platforms with 4 Load Cells: Steel
82 4. Weighing Platforms with 4 Load Cells: Stainless Steel
83 Repairing the Weighing Platforms
83 Replacing the Connecting Cable
84 Replacing Load Cells
85 Torque Values
86 Pin Assignments in the Junction Box
87 Replacing the Load Cell Foot
87 Color Codes of the Wiring for Weighing Platforms, Models
CAPS../CAPS..
88 Error Codes
90 The Combics Weighing Platforms
91 Type Designation
91 Complete Combics scale
92 Complete Combics stainless steel scale
93 Service Specifications
93 CAPP/CAPS1U-.....-LU
94 CAPP/CAPS4U-.....-LU
4
Overview
Service Concept
Prerequisites for performing maintenance and repair work on Sartorius Combics
scales requires considerable experience with both indicators and weighing platforms.
In case of defects, repairs are performed on site. Generally, the equipment is not
replaced.
General Information
– Do not connect or disconnect cables to or from the equipment; always disconnect the
power cable from the wall socket (mains supply) first!
– To ensure safety, an isolating transformer must be installed between the indicator and
the power supply before performing work that entails opening the Combics indicator
housing.
On Combics scales, check and adjust as necessary:
(The procedure is the same as for all scale and weighing platform models.)
– Repeatability (standard deviation)
– Off-center load
– Span
– Linearity
5
When to Use Which Procedure
Combics Indicators
Activate the service mode to perform all adjustments See page 17
Important: All adjustments required after repair work (such as
replacement of the A/D converter or the load cells) are
performed using the terminal.
The Sartocas service software is not required for these adjustments.
Using this software, however, can make some adjustments
unnecessary (see „Use Sartocas software“ below).
Activate the BPI mode to load a modified data record in the controller
of the A/D converter See page 15
Activate the xBPI protocal to perform calibration and adjustment, if necessary See page 16
using Sartocas
Use Sartocas software - to reactivate the SBI protocol by selecting the „Close“
command on the Combics terminal (or by restoring
factory defaults (menu line 9-1)
- to program a new A/D converter PCB with data read from the old PCB
The necessary adjustments and customer specific menu settings
are not necessary
6
Use PPLoader software to update the application software in the terminal
Drift, display
Inf 02 when starting an
adjustment routine to check the A/D converter (quick-test) See page 73
or with the strain-gauge simulator,
check load cell(s) with the load cell tester
Display blank (dark) Disconnect the equipment from the power supply and
disconnect all cables and wires from the subassemblies,
connect equipment to power again, connect subassemblies
in turn and measure voltages See pages 70-72
No communication with
connected equipment Check connections and data transfer parameters;
start internal test program; if necessary, replace
7
Overview of the Models
The hardware configuration consists of either a Combics 1 or 2 indicator and
Sartorius weighing platform(s), or a Combics 1 or 2 indicator and weighing
platform(s) (strain-gauge load cells) from another manufacturer.
Important: Mechanical and electrical service or repair work on the Combics scale requires
considerable experience, and for this reason should be performed only by
Sartorius technicians trained at the factory. Any attempt to perform repair work
can result in damage to the equipment.
Auxiliary Service Tools and Equipment
In addition to standard tools, you will need the following special tools to work on
the Combics scale:
Qty. Designation Order No.
1 Laptop
1 Sartocas service software, version 1.46 or later 6740-33
or
1 Psion Server version 4.10 or later
1 PPLoader software
1 Isolating transformer
1 Flintec LCT-01 load cell tester
1 Socket wrench, double hexagon, 10-32 mm,
“ square driver
1 Adapter for Allen screws, SW 5 - 17, ” square driver
8
Qty. Designation Order No.
1 Torque wrench, 10-120 Nm 14x18, stainless steel
1 Torque wrench, 60-320 Nm 14x18, stainless steel
1 Set of open-ended wrenches with sockets
1 Set of sockets, up to 30 mm (hexagonal, stainless steel)
2 Transport belt (to move load plates or weighing
platforms; available from specialist suppliers)
2 Ring lugs (stainless steel; for moving the load plates or
weighing platforms; available from specialist suppliers)
1 Set open-ended wrenches (spanners) (up to 24 mm, stainless steel)
1 Threaded rod, M 16x120, for lifting the weighing platform
(available from specialist supplier)
1 Testing device for checking IP66/67 protection (not yet defined)
1 Set of screwdrivers (slotted)
1 Set of screwdrivers (Phillips head )
1 Set of Allen wrenches
1 Digital voltmeter (Beckman) 6738-62
1 Strain gauge simulator 6740-74
1 RS-232/485 converter 6740-68
Accompanying Literature
Operating instructions for “Combics 1 | 2 Indicators“ WCI6004-e03081 98648-012-27
Operating instructions for “Painted or Stainless Steel Weighing Platforms“ WCA6004-e03081 98648-012-26
9
Operating Concept
Keys below the Display
e On/off
(On) Turns the Combics on and off.
(Standby) Combics switched off displays
“off“.
n Toggle the display between
(Scale #) the weighing platforms
(Combics 2 only)
With two weighing platforms
connected, this key toggles
the display between the two
readouts.
( During weighing:
(Zero) Zero the scale
In the operating menu:
Closes active submenu and
returns to next higher menu
level and menu level (unless
the first menu level is already
shown)
During alphanumeric input
in the operating menu:
– Press briefly:
Activate character to the left
of the currently active
character
(with the first character
active: Exit the input mode
without saving changes)
– Press and hold (> 2 sec ):
Exit the input mode without
saving changes
) During weighing:
(Tare) – Press briefly:
Tare the scale
– Press and hold (> 2 sec ):
Calibration/adjustment
In the operating menu:
– Press briefly:
Display the next lower menu
level or
Select and store a menu item
– Press and hold (> 2 sec ):
Exit the operating menu
During alphanumeric input in the
operating menu:
– Press briefly:
Activate character/s to the
right of the currently active
character ®
(after the last character:
store input)
– Press and hold (> 2 sec ):
Store current input and display
the menu item
k During weighing:
(Function)Toggle (depends on operating
menu settings) between:
– first and second weight unit or
– gross and net or
– normal and 10-fold increased
display resolution
In the operating menu:
Show the next item on the
same menu level (scroll
through values in series)
Combics_1Folie_u.eps
Combics 1
10
During alphanumeric input
in the operating menu:
– Cursor in first position,
no characters entered yet:
Delete entire string and
enter “0“
– Change the displayed
character; scroll forward
(sequence: 0 through 9,
decimal point, minus
sign, Z through A, pace)
p During weighing:
(Print) – Press briefly:
Print
– Press and hold (> 2 sec ):
Print GMP footer
In the operating menu:
Print the menu settings
starting from the current
position; or print Info data
During alphanumeric input in
the operating menu:
– Cursor in first position, no
characters entered yet:
Delete entire string and
enter a space
– Change the displayed
character; scroll
backwards ÿ (sequence:
Space, A through Z,
minus sign, decimal
point, 9 through 0)
Note:
The sequence in which keys are
pressed in the following
descriptions (“Key sequence:“)
are given as examples only.
Other sequences are possible.
Configuring the Combics
Purpose
You can configure the Combics to
meet individual requirements by
entering user data and setting
selected parameters in the operating
menu. The operating menu is a
combination of text levels and
numeric codes.
Features
The operating menu parameters are
divided into the following categories
1. Text-menu level
– Application programs »APPL«
– Key assignments k »fn-key«
– Device parameters »setup«
– Device information »InFo«
– Language for calibration and
adjustment printouts »LAnG«
Combics 2
Combics_2Folie_u.eps
11
You can display, enter or change the
following parameters:
In addition to basic weighing
functions, you can use the
Combics 2 to calculate and
display weighing data as follows:
– Counting
– Neutral measurement
– Averaging (animal weighing)
– Checkweighing
– Classification
– Weighing in percent
– Net-total formulation
– Totalizing
Function: Key assignment for k
»fn-key«
– Gross/net toggling
»gro net«
– Toggle between the 1st, 2nd and
3nd weight unit
(are eycled in the display)
»3. unit«
–
10-fold higher resolution
»Res 10«
– Device parameters »setup«
Device configuration, i.e.,
to meet individual requirements
by selecting predefined menu
parameters in the operating
menu. The device parameters
are combined in the following
groups :
– Weighing platform »wp1«
– Interfaces (COM1 and optional
UniCOM)
– Digital control line »ctrl in«
– Bar code scanner »barcode«
– Printer protocols »prtport«
– Extra Functions: Utilities
»utilit«.
– Timer »time«
– Date »date«
– Set user password »code«
– Display device information
»info« (serial number, etc.)
– Language for calibration and
adjustment records »lang«.
Select the language.
The rest of the menu
is language-independent.
12
(Function)
(O) (Tare)
(Print)
– Scroll upwards (0, 1, 2, 3, etc.):
Press the k key
– Scroll downwards ¬ (A, B, C, etc.):
Press the p key
– Next position: Press the ) key
– Previous position: Press the (
key
– Exit input mode without saving
changes; with cursor in first
position: Press the ( key
– Exit the input mode without
saving changes:
Press and hold the ( key
(> 2 sec)
– To confirm your input: Press the
) key with the cursor 1 space
beyond the last position; or press
and hold (> 2 sec)
– Confirm currently active
character and move 1 position
Functions of the Keys when
Configuring the Menu
Open the operating menu:
Turn the Combics off and on
again by pressing e; while all
segments are displayed, press the
) key briefly.
Navigating in the operating
menu:
(On) (Tare)
(Function)
– Scroll :
Press the k key
– To the left ¬: Press (
– Change and store setting:
Press the ) key
– Exit the operating menu:
Press and hold the ) key (> 2
sec)
During alphanumeric input in
the operating menu:
to the right:
Press the ) key
– Move cursor 1 position to the left
Press the ( key
Printing the Parameter Settings
Generate a printout of the settings on
the current menu level:
Press the p key
> Printout (example)
The maximum width of this
printout is 20 characters.
--------------------
MENU
SETUP
WP1
------------------- 1
1.1
1.1.2
1.2.1
...
1.18
1.18.1
CAL.
10.000 kg
etc.
13
Description of the Equipment
The Combics scales from Sartorius are primarily used in industry. Because there are a number of hardware configurations
to choose from, Combics models are constructed according to customer requirements.
The Combics scale consists of:
– A choice of weighing platforms with capacities from 10 lbs to 10000 lbs (in stainless steel or steel) and indicators
The Combics 1 / 2 indicators consist of:
– Front panel with keypad and
digital display (Combics 2 has
additional keys and LEDs)
– Combics indicators
are equipped with either cable
glands or D-Sub 25
connectors.
Note: Additional electronic subassemblies are optional.
Digital PCB with application
processor, memory, RS-232 interfaces
Analog/digital converter
Power PCB
DC/DC converter
(Combics2 has a clock chip)
combics_15_klemmen.eps
Combics 2
14
Function of the Service Keys and Switches
A. Menu Access Switch
This switch must be open to work with the service software or configure the A/
D converter (e. g., “Trade” configuration). If the menu access switch is closed,
the error message “ACCESS SWITCH LOCKED” is displayed in the service program
and the indicator shows “L” (underload) or “H” (overload). In this case, the A/D
converter cannot be configured. If adjustment is necessary (span, linearity), the
“± 2%” window is active.
B. SBI/BPI Key
To use the Sartocas program (v 1.46 or later) or Psion server (v 4.10 or later).
the Combics indicator must be in BPI (binary processor interface) mode (for
example, to load a modified data record from the A/D converter into its
controller). This setting is valid for the COM1 port.
Note: To perform adjustment
only with the service software, the COM1
interface is set to the xBPI (eXtended Binary Processor Interface) protocol
and the laptop or Psion server connected to that port.
verriegelungs_schalter.eps
closed open
A
sbi_bpi_taster.jpg
B
15
Activating the BPI Mode
– Turn on the Combics.
– In weighing mode, press and hold the SBI/BPI key for approx.
5 seconds (the weight readout goes blank).
– Release the switch.
– Turn the Combics off and then on again.
– The Combics is now in BPI mode.
Important: Peripheral devices that communicate over the SBI (Sartorius Balance Interface)
protocol cannot be operated while the Combics is in BPI mode.
If you press the p key, only InF 30 is displayed.
To return the indicator to the SBI mode, either use the “Close” function in the
Sartocas service software or a Psion server (and then turn the Combics off and
back on again), or select the Menu Reset option (9 - 1 - 1) in the Combics
operating menu.
C. Boot Key
Activate this switch only if an attempt to program the application memory
with the PPLoader program fails (programming routine stops responding).
Procedure for making the PCB bootable:
– Disconnect the Combics from the main power.
– Press and hold the boot switch (approx. 3 sec.) while reconnecting the Combics
to power.
– Release the switch. After a brief period, the PCB is bootable again
(load application software again with the PPLoader program).
boot_taster.jpg
C
16
Activating the xBPI Protocol
Activate the xBPI protocol to perform adjustment with the service software
Sartocas software or Psion server without activating the BPI mode
through the SBI/BPI key.
Note: This menu item is accessible in the standard menu.
–Via Setup select the Device parameters menu item (for the COM1 port).
– Open the Device parameters menu and scroll down to the Interface
submenu.
– Open the Interface submenu and activate the xBPI menu item.
Note: Under xBPI a submenu is opened for assigning addresses, but this function is only
available when using xBPI with RS-485.
Display_xbpi.eps
17
Activating the Service Mode
Activating the Service Mode
– Turn off the Combics (key: e).
– Turn on the Combics (key: e) and briefly press the ) key while all
segments are displayed.
The display shows APPL.
– Press the k key to scroll to the Setup item.
– Press the ) key; WP-1 is displayed.
– Press the k key to scroll to the CodE item.
setup.eps
display.eps
appl.eps
display_wp1.eps
code.eps
18
– Press the ) key; the display shows only a flashing cursor.
– Press k to select “2” and then press ) to confirm; the cursor jumps to the
second position; now you can enter the next number. Repeat this procedure
with the appropriate numbers to enter the service password (202122).
Note: If you find that one of the numbers is wrong, press ( to go back to that digit
and change it; then press the ) key repeatedly to return to the sixth digit
(the 2 flashes).
– After entering the last digit, press ) (< 2 sec.) and ( ( (in that order)
to activate the service mode. Setup appears in the display.
A “S” in the upper right-hand corner of the display indicates that the service
mode is active.
To cancel the password input process before it is finished, press ( repeatedly
until CodE is displayed.
Note: The service mode can be deactivated only by turning the off the Combics indicator.
Important: When the service mode is active (password 202122), you can only view the
customer password. The customer password can be deleted only by entering
the general password (40414243) or the customers password.
d_vore12.eps
202122.eps
code_s.eps
19
Working in the Service Mode
Note: When performing maintenance on an existing system, the service mode must be
activated to perform linearization, to set or clear the preload, and to enter the
date of service.
Additional Menus in Service Mode
In the Text Menu (“Setup”) Under the “Date” (DATE) and “Password” (CodE) menu items:
– Date of service S-DATE
– Memory number MEM-NO
– Indicator serial number SER-NO
– Model designation ModEL
In the numeric menu: The Setup menu for WP1 (WP-1) and the COM1 (COM1) and
UniCOM (UNICOM) ports is extended by the following items for
configuring weighing platforms WP1 (WP-1) and WP2 (WP-2):
1-9 Calibration/adjustment functions:
1-9-1: Ext. calibration/adjustment with default weight
(service mode not required)
1-9-3: Ext. calibration/adjustment with user-defined weight
(service mode not required)
1-9-5: Internal linearization (only for WP2 on COM1 and UniCOM ports)
1-9-7: External linearization with user-defined weights
1-9-8: Set preload
1-9-9: Clear preload
1-9-10: Key blocked (service mode not required)
20
Note: After necessary adjustments, install the suitable
adjustment routine for the customer.
1-18 Enter the calibration and linearization weights
1-18-1: Enter adjustment weight
1-18-2: Enter linearization weight 1
1-18-3: Enter linearization weight 2
1-18-4: Enter linearization weight 3
1-18-5: Enter linearization weight 4
1-19 Calibration without weights (by entering the
specifications of the load cell(s)):
1-19-1: Nominal load
1-19-2: Resolution
1-19-3: Sensitivity in mV/V for cell 1 (or mean derived
from all load cells)
1-19-4: Sensitivity in mV/V for cell 2
1-19-5: Sensitivity in mV/V for cell 3
1-19-6: Sensitivity in mV/V for cell 4
When multiple cells are connected, either the
individual values are entered under items
1-19-3 to 1-19-6, or the mean derived from all
load cells is entered under 1-19-3.
1-19-7: Store values entered for 1-19
1-20 Place of adjustment (geographical latitude
and altitude or, alternatively, the acceleration
of gravity at the place of installation):
1-20-1: Latitude in degrees
1-20-2: Altitude in meters above sea level
1-20-3: Acceleration of gravity
1-20-4: Store values entered for 1-20
8-12 Geographical data is displayed before every
span adjustment
9-1 Restore factory settings / Reset menu
9-1-3: Load “Standard” configuration
9-1-4: Load “Trade” configuration
9-1-10: Load default setting and delete
all Parameters
11 A/D Converter Settings:
11-1 Accuracy classes:
11-1-4: Accuracy class l
11-2 1. Weight unit (copy from menu subset 1-7):
11-2-1: long ton
11-2-2: Grams
11-2-3: Kilograms
...
11-2-21: Tons
21
11-3 Weighing range:
11-3-1: Single-range scale
11-3-2: Multiple-range scale
11-3-3: Multi-interval scale
11-4 Metrological data for single-range scale:
11-4-1: Scale interval d
11-4-2: Verification scale interval e
11-4-3: Minimum load
11-4-4: Maximum load
11-5 Metrological data for multi-interval scale:
11-5-1: Scale interval d
11-5-2: Verification scale interval e
11-5-3: Minimum load
11-5-4: Range 1
11-5-5: Range 2
11-5-6: Range 3
11-5-7: Maximum load
11-6 Metrological data for multiple-range scale:
11-6-1: Scale interval d
11-6-2: Verification scale interval e
11-6-3: Minimum load
11-6-4: Range 1
11-6-5: Range 2
11-6-6: Range 3
11-6-7: Maximum load
11-7 Available weight units:
11-7-1: User-defined unit
11-7-2: Grams
11-7-3: Kilograms
...
11-7-5: lb
...
11-7-21: Tons
11-8 Calibration/adjustment unit:
11-8-1: User-defined unit
11-8-2: Grams
11-8-3: Kilograms
...
11-8-5: lb
...
11-8-21: Tons
11-10 Store A/D converter configuration:
11-10-1: Store
11-10-2: Do not store
22
display_wps1_serv.eps
display_serv_01.eps
menu_1181.eps
user1Ib.eps
user2Ib.eps
menu_1181.eps
Menu Item 1-18: Entering Calibration/Linearization Weights
1-18-1: External User-defined Calibration Weight (Service Mode not Required)
– Activate the service mode (see page 16).
– Select weighing platform “WP1”.
– Press the ) key to open the numeric menu.
– Select menu item 1-18-1 (external user-defined weight) by pressing k )
repeatedly.
– Activate input mode for the user-defined weight (press ) briefly).
The first digit flashes.
– Enter the user-defined weight (in this example: 10,000 lb) (key sequence:
) k ) p ) ) ) k )). The last number entered flashes.
– Press the ) key again to store the user-defined weight; the menu jumps back
to 1-18-1.
– To exit the service mode, press and hold the ) key for longer than 2 seconds.
23
1-18-2: 1. Entering Linearization Weight
– Scroll to menu item 1-18-2 (press k repeatedly).
Note: The service mode must be active.
– Activate the input mode for the first linearization weight (press the ) key
briefly). The first number flashes.
– 1. Enter the linearization weight (in this example: 2,500 lb) (key sequence:
3 x k, ) p ) 6 x k, ) k ) k). The last number entered
flashes.
– Press and hold the ) key (> 2 sec.) to store the value for the first
linearization weight. The menu jumps back to item 1-18-2.
– Follow the above steps for menu items 1-18-3, 1-18-4, and 1-18-5 to enter
values for the second, third and fourth linearization weights as well.
Enter “0” instead of a weight value for unused linearization points.
– At the end of input, the display must show menu item 1-18-5.
– To exit the service mode, press and hold the ) key for longer than 2 seconds.
menu_1182.eps
user1Ib.eps
userl2Ib.eps
menu_1182.eps
menu_1185.eps
24
Calibration/Adjustment Routines in Service Mode (General Information)
There are three ways to adjust the span:
– Using external weights
– By entering the specifications of the load cell(s) (sensitivity in mV/V)
– By entering geographical data (latitude and altitude of the place of use) or by
entering the acceleration of gravity (at the place of use)
Span adjustment with external weights always takes precedence.
What does this mean when performing service work?
If a weighing system is used in a location other than that for which it was
originally intended (i.e., the geographical data at the new place of use does not
match the entered at Sartorius AG in Goettingen, Germany), the scale span can be
adjusted by using external weights or by entering the specifications of the load
cell(s). In this case, the geographical data entered for the original place of use is
no longer valid. The same applies for span adjustment performed after any repair
work on the weighing system.
Once you store the geographical data or acceleration of gravity at the place of use
and subsequently perform span adjustment using weights, the scale is correctly
programmed and adjusted.
You can now enter the geographical data of the new place of use to adapt the
scale for use at that location.
25
If the acceleration of gravity has been entered, this data takes precedence over
any
geographical data (latitude and altitude) previously entered.
Valid Locations for Use
Once the exact geographical data or the acceleration of gravity has been entered
and subsequent span adjustment performed, a scale with a resolution of 3000
digits can be used within a tolerance zone of ±100 km from the latitude entered
and ±200 m from the altitude.
The same applies when the acceleration of gravity is entered.
The following values are entered when the Combics scale is adjusted
in Goettingen, Germany:
– Latitude: 51.53 degrees (= 51° 32’)
– Altitude: 151 m
– or the corresponding acceleration of gravity, 9.811590 m/s-2
The greater the precision of the geographical data entered, the greater the
precision achieved with the weighing instrument; the tolerance range, however,
is restricted accordingly (see above).
26
Zone “D”
For a complete scale used in the Federal Republic of Germany, the following data
can be entered for scales with a resolution of 3000 digits at the place of span
adjustment:
– Latitude: 51.00 degrees
– Altitude: 513 m
– or the corresponding acceleration of gravity, 9.810 m/s
-2
The area of use valid for this scale is designated “Zone D” (valid only in Germany).
27
Menu Item 1-9: Calibration/Adjustment Functions
Note: When using a verified weighing platform, open the cover plate on the left side
of the back of the indicator and move the menu access switch to the right
(“accessible”; see page 14).
– Activate the service mode (see page 17).
1-9-1: External Calibration/Adjustment with Default Weights
– Select weighing platform »WP1«.
– Press the ) key to open the numeric menu.
– Select menu item 1-9-1 (external calibration/adjustment with default weights)
(key sequence:
) several times k )) and confirm () key briefly).
When this menu setting is active, you can exit the Service mode by turning the
Combics indicator off and then on again.
display_wps1_serv.eps
display_serv_01.eps
menu_191.eps
28
display_cal.eps
5lb.eps
display_serv_01lb.eps
5.0lb.eps
display_wps1_serv.eps
display_serv_01.eps
– After taring or zeroing the scale, press and hold the ) key until Cal is
displayed.
If menu item 8-12-2 is active, the geographical data is displayed before the
calibration weight is prompted. Confirm each of the values shown by pressing
the ) key to continue with the calibration routine.
– After approx. 2 seconds the calibration weight required is shown on the display.
– Place the prompted weight on the scale. After a brief pause, the difference
between the current value and the last is displayed (calibration).
– Press the ( key to stop the calibration/adjustment routine.
– Press the ) key to start the adjustment.
1-9-3 External Calibration/Adjustment with User-defined Weights
– Select weighing platform »WP1«.
– Press the ) key to open the numeric menu.
29
– Press ), then, several times, k ) to select menu item 1-9-3, “External
calibration/adjustment with user-defined weights” and confirm by pressing )
briefly.
– Press ( to jump to the first columns of the numeric menu.
– Press ) to store the selected menu item.
– Turn the Combics indicator off and then on again to exit the Service mode.
– After taring or zeroing the scale, press and hold the ) key until Cal is
displayed.
If menu item 8-12-2 is active, the geographical data is displayed before the
calibration weight is prompted. Confirm each of the values shown by pressing
the ) key to continue with the calibration routine.
– After approx. 2 seconds the calibration weight (user-defined weight) required
is shown on the display. Select menu item “1-18-1” to enter the user-defined
weight.
– Place the prompted weight on the scale. After a brief pause, the difference
between the current value and the last span adjustment is displayed
(calibration).
– Press the ( key to stop the calibration/adjustment routine.
– Press the ) key to start the adjustment.
display_cal.eps
10Ib.eps
display_serv_01Ib.eps
10Ibw.eps
menu_193.eps
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