98648-009-72
Operating Instructions
Sartorius
Counting Scales
CB Models
Electronic Precision Scales
2
3
Intended Use Contents
The models of the CB Series are
precision scales designed for the
measurement of mass covering a
range from 0.01 g and 64 kg.
CB models meet the highest requirements on the accuracy and reliability of
weighing results through the following
features:
– Efficient filtering-out of unfavorable
ambient conditions, such as vibration,
drafts, etc.
– Stable and reproducible weighing
results
– Excellent readability under any lighting
conditions
– Rugged, durable weighing system
CB scales save work and speed up
simple routine applications through
these features:
– Reference sample quantity adjustable
using the selector
– Mass unit conversion by toggling
between units (second weight unit)
– Extremely fast response times of
approx. 1 second
– Total ease of operation
– Runs on 6 size C alkaline manganese
batteries rated to 1.5 V, max. 8,100 mAh
– Serial RS-232 port for connection to
a PC
– Two lines in the printout are config-
urable to show your company name, for
example
3 Contents
3 Intended Use
4 Warnings and Safety Precautions
5 General View of the Scale
7 Getting Started
11 Operating the Scale
11 Weighing
13 Calibration/Adjustment
15 Counting
19 Toggle between Units
22 Weigh Averaging
24 Settings
24 Setting the Parameters (Menu)
25 Parameter Settings (Overview)
29 Generating a Printout
31 Data Interface
39 Pin Assignment Chart
40 Cabling Diagram
41 Error Codes
43 Care and Maintenance
44 Instructions for Recycling
45 Overview
45 Specifications
47 Dimensions (Scale Drawings)
48 Accessories (Options)
50 C Marking
Supplement:
Key label strip for the control
panel showing the procedure
for “counting”
4
Warnings and Safety Precautions
The scale has been constructed in
accordance with the European Directives
as well as international regulations and
standards for operation of electrical
equipment, electromagnetic compatibility, and stipulated safety requirements.
Improper use or handling, however, can
result in property damage or personal
injury.
Read these operating instructions
thoroughly before using your scale
to prevent damage to the equipment.
Keep these instructions in a safe place
for future reference.
Follow the instructions below to ensure
safe and trouble-free operation of your
scale:
! Do not use this scale in a hazardous
area/location
! Only for use with LISTED direct plug
in power supply.
! CAUTION. Risk of explosion if battery
is replaced by an incorrect type.
Dispose of used batteries according
to the instructions.
! Make sure that the voltage rating
printed on the AC adapter is identical
to your local line voltage
! Warning When Using Prewired RS-232
Connecting Cables:
RS-232 cables purchased from other
manufacturers often have incorrect
pin assignments for use with Sartorius
scales. Be sure to check the pin assignment against the respective chart before
connecting the cable, and disconnect
any lines marked “Internally Connected”
(e.g., pin 6). Failure to do so may
damage or even completely ruin your
scale and/or peripheral device.
– The only way to turn the power
off completely is to disconnect the
AC adapter
– The scale housing is protected against
penetration (ingress) of solid objects
(IP30)
– Connect only Sartorius accessories and
options, as these are optimally designed
for use with your CB scale
– Protect the AC adapter and the scale
from moisture
When cleaning your scale, make sure
that no liquid enters the scale housing;
use only a slightly moistened cloth
to clean the scale.
Do not open the scale housing.
In case you have any problems with
your scale:
$ Contact your local Sartorius office,
dealer or service center
5
General View of the Scale
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
14
15
22
23
24
6
Item (Spare Part Order No.)
12 [ZERO] key: zeros the display. Sets
the display to zero. Zeroing is only
allowed within the ± 2% range of
the scale’s maximum capacity.
13 [ON/OFF] key: Switches the display
on or off. (The scale remains
energized in the standby mode –
depending on the menu setting.)
14 Display: average piece weight
15 Weight display in the basic unit
selected
16 Shows that a value is in the tare
memory
17 Symbol for standby operation
18 Symbol for zeroing
19 “Busy” symbol
20 Weight unit or piece count (pcs)
21 Manufacturer’s label
22 DC jack
23 Data interface port
24 Main display
Not shown:
Set of small parts (battery cover, selector,
clear plastic overlay) (69C00039)
Item (Spare Part Order No.)
1 Weighing pan (69C00036)
2 Battery compartment
(below the control unit)
3 Control unit
4 Foot (Set: 69C00038 not for
CB…000CA models)
5 [UNIT] key: Toggles between 2
weight units or to counting mode
6 [START] key: starts measurement
of the average piece weight
7 Selector: selects reference sample
quantity
8 [OK] key: saves reference sample
quantity
9 [DELETE] key: cancels operation
This key is generally used for the following:
– End counting
– Cancel a calibration/adjustment
routine in progress
10 [PRINT] key: generates a printout
This key sends displayed values via
the built-in data interface to an
on-line Sartorius Data Printer or
to a computer.
11 [TARE] key: tares (subtracts weight)
The weight of an empty container is
subtracted so that the net weight of
a sample in the container is always
shown afterwards.
7
Getting Started
Storage and Shipping Conditions
Do not expose the scale to shock, vibra-
tion, moisture or extreme temperature.
Unpacking the Scale
§ After unpacking the scale, check it
immediately for any visible damage
$ If you see any sign of damage, proceed
as directed in the chapter entitled “Care
and Maintenance” under the section on
“Safety Inspection”
Save the box and all parts of the
packaging until you have successfully
installed your scale. Only the original
packaging provides the best protection
for shipment. Before packing your
scale, unplug all connected cables to
prevent damage.
Equipment Supplied
The equipment supplied includes the
components listed below:
– Scale with weighing pan mounted
in place
– Plug-in AC adapter
– Operating instructions
Installation Instructions
CB scales are designed to provide
reliable weighing results under normal
ambient conditions. When choosing a
location to set up your scale, observe
the following so that you will be able to
work with added speed and accuracy:
– Set up the scale on a stable, even
surface
– Avoid placing the scale next to a heater
or exposing the scale to direct sunlight
– Protect the scale from direct drafts that
come from open windows or doors
– Avoid exposing the scale to strong
vibration during weighing
– Protect the scale from aggressive
chemical vapors
– Avoid exposing the scale to extreme
moisture
Conditioning the Scale:
Moisture in the air can condense on
the surfaces of a cold scale whenever it
is brought into a substantially warmer
place. Therefore, condition a cold scale
for approx. 2 hours at room temperature, leaving it unplugged from AC
power. Afterwards, keep the scale
continuously connected to AC power.
8
AC Power Connection/Safety Precautions
Use only
– Original Sartorius AC adapters; for Europe: 6971948
§ Insert the right-angle plug into the jack on the scale
§ Then plug the Class 2 AC adapter into any
electrical outlet. No additional safety precautions
are required.
Information on Radio Frequency Interference
Warning!
This equipment generates, uses and can radiate
radio frequency energy and, if not installed and used
in accordance with the instruction manual, may
cause interference to radio communications. It has
been tested and found to comply with the limits for
a Class A computing device pursuant to Subpart J of
Part 15 of FCC Rules, which are designed to provide
reasonable protection against such interference,
when operated in a commercial environment.
Operation of this equipment in a residential area
is likely to cause interference, in which case the
user, at his own expense, will be required to take
whatever measures may be required to correct the
interference.
9
Installing the Batteries
$ Batteries are not included with the equipment
supplied.
! Use only commercially available size C alkaline
manganese batteries rated to 1.5 V max. 8,100 mAh.
§ Lay the scale on its side.
§ To open the battery compartment, lift the
compartment cover.
§ Install six 1.5-volt size C batteries in the
compartment.
$ Make sure to connect the positive and negative
poles correctly.
! Used batteries are classified as waste that requires
special handling (not “household” waste). Dispose
of rechargeable batteries according to your country’s
applicable special waste disposal regulations.
§ To close the battery compartment: Press down on
the cover until it clicks into place.
For automatic shutoff of a battery-operated scale:
$ Select “automatic shutoff” in the menu: Please see
the chapter on “Settings” to select code 8. 4. 1
> The scale will then shut off automatically when
it has not been operated for more than approx.
2 minutes.
10
Connecting Electronic Peripheral Devices
§ Make absolutely sure to unplug the scale from
AC power before you connect or disconnect
a peripheral device (printer or PC) to or from the
interface port.
For battery operation:
> Press the [ON/OFF] key to shut off the power
completely (scale does not go into standby mode).
Warmup Time
To deliver exact results, the scale must warm up
for at least 30 minutes after initial connection to
AC power. Only after this time will the scale have
reached the required operating temperature.
11
Operating the Scale
Weighing
Features
– Zeroing the scale
Depending on the prevailing ambient conditions,
the display may not show a zero readout even
though there is no load on the scale. If the weight
shown is less than 2% of the scale’s maximum
weighing capacity, you can zero the scale.
– Taring the scale (saving a [container] weight in
the memory by subtracting it from the display)
Tare the scale with an empty container on the
weighing pan to obtain a readout of the net weight
after filling the container.
– Printing weights
Preparation
§ Turn on the scale:
Press [ON/OFF]
> A self-test is performed
$ To change settings: please see the chapter
on “Settings”
$ To load the factory settings: please see the
chapter on “Settings,” parameter 9. - 1
12
Example
Determine a weight
Settings: factory settings
Step Press key Display/Printout
1. Turn on scale [ON/OFF]
0.0 g
2. If necessary, zero scale [ZERO] 0.0 g
3. Place empty container on scale + 11.5 g
(in this example, 11.5 g)
4. Tare scale [TARE]
0.0 g
5. Place sample in container + 120.5 g
on scale (in this example, 120.5 g)
6. Print weight* [PRINT]
ABC HOBBY SHOP
LOS ANGELES
N + 120.5 g
T + 11.5 g
G# + 132.0 g
* Your local Sartorius service center or dealer
can configure the scale to include 2 customerspecific lines on the printout.
Software is available for setting this
configuration using a PC.
13
Calibration/Adjustment
Purpose
Technically, calibration means determining the difference between the
weight readout and the true weight
(mass) of a sample. Calibration does
not entail making any changes within
the scale. Adjustment is the correction
of this difference between the measured
value displayed and the true weight
(mass) of a sample, or the reduction
of the difference to an allowable level
within the maximum permissible error
limits. Because the CB scale automatically performs both calibration and
adjustment, we use the term “calibrate/
adjust” to mean both in this manual.
Features
Calibration/adjustment can only be
performed when
– there is no load on the scale,
– the scale is set to zero, and
– the internal signal is stable.
If these conditions are not met,
an error code is displayed.
The value of the weight on the scale
must not differ from the nominal
weight by more than 2%.
You can use any of the following
weight units to calibrate/adjust:
g, kg, lb (1. 4.)
You can block calibration/adjustment
of the scale (1. 5.)
Factory Settings of the Parameters
Weight unit for calibration/adjustment:
grams (1. 4. 1)
Calibration/adjustment function:
accessible (1. 5. 1)
14
Example
Calibrate/adjust the scale
Settings: factory settings
Step Press key Display/Printout
1. Turn on scale, if power is off [ON/OFF]
0.0 g
2. If necessary, zero the scale [ZERO] 0.0 g
3. Start calibration/adjustment [TARE] (> 2 sec) + 500.0 g
Calibration weight is
displayed without wt. unit
4. Place the indicated calibration
500.0 g
weight on scale (in this case,
500 g)
After calibration/adjustment,
+ 500.0 g
calibration weight is displayed
with wt. unit
5. Remove calibration weight
0.0 g
15
Counting
Purpose
With the counting program, you can
determine the number of parts that
have approximately the same average
piece weight.
Features
– The minimum capacity is one digit
related to the resolution of the
particular weight unit selected.
– The resolution can be selected for the
average piece weight to be saved as a
reference and calculation of the piece
count.
– The criterion for saving the average
sample weight (“Wref”) and calibration
of the piece count can be selected.
This criterion applies to the following
key functions: [ZERO], [TARE], [START]
and [OK].
– Reinitialize without quitting the
counting application.
– The average piece weight and reference
sample quantity (piece count = “nRef”)
are automatically
output via the data
interface port after
initialization, if you
have selected the setting for printing
several lines of data with nRef/wRef in
the menu.
– Press [UNIT] to toggle between the
piece count and weight.
! Piece weights that show high variations
or are too low will negatively affect the
counting accuracy.
Function Keys
[START] key:
– Press [START] to begin determining
the average piece weight.
– The current weight is shown as a
reference for the average piece weight
that is saved when [OK]
is pressed.
– Place the reference sample parts on the
scale when “PIECE WEIGHT”: sample
is displayed.
– Depending on the menu code previously
set, the scale is either automatically
tared or not tared when the “Counting”
program is started.
– The “Auto Zero” function is de-activated
until the average piece weight has been
saved.
[OK] key:
– Initializes the counting application
using the reference sample quantity
selected in the menu.
– Shows the average piece weight
as “PIECE WEIGHT” after you have
pressed the key once.
– If you press the [OK] key again, this will
reinitialize the counting application.
If you press the [OK] key >2 sec.:
– The number of the last reference
sample quantity “nRef” will be
displayed (Init. or Opt.).
16
Selector
– Turn this selector to set the reference
sample quantity.
– Each time you change the selector
setting, the new reference sample
quantity will be briefly displayed.
Reference Sample Updating
Automatic reference sample updating
optimizes the counting accuracy.
You can activate or de-activate this
function in the menu.
The abbreviation opt for “optimizing”
briefly appears in the “PIECE WEIGHT”
display to indicate that reference sample
updating has been completed if
– the criterion for the stability parameter
selected in the menu has been met
– the current piece count is less than
twice the original piece count
– the current piece count is less than
1,000
– the internally calculated piece count
(such as 17.24 pcs) differs by less than
± 0.3 pcs from the whole number
(17 pcs in this example)
Factory Settings of the Parameters
Program selection:
Counting without weight unit toggling
(2. 1. 4)
Resolution:
Standard: according to the displayed
accuracy
(3. 4. 1)
Storage parameter:
At stability (3. 5. 1)
Reference sample updating:
Automatic (3. 6. 2)
Autotare when [START] is pressed:
On (3. 7. 2)
Additional Functions
In addition to the basic functions
(power off, zeroing, taring and printing), you can also access the following
functions from this application:
– Cancel initialization:
[DELETE] key
– Show weight: [UNIT] key
– Calibrate/adjust scale:
press [TARE] > 2 sec.
17
Example 1:
Count parts into a container
Menu settings: factory settings
Step Press key Display/Printout
1. Turn on scale, if power is off. [ON/OFF]
2. Place empty container [START]
0.0 g
on scale and start counting.
+ 36.6 SAMPLE
3. Select reference sample quantity; Brief display of:
for example, turn selector to
“20”.
ref 20
4. Place reference sample quantity
on scale (20 parts in this case).
+ 23.1 g
5. Save reference sample quantity. [OK] + 20 pcs
The scale now calculates the
+ 23.1 + 1.1550
average piece weight.
6. If necessary, update the reference
sample using the optimizing function;
+ 32 pcs
in this case, add 2 to 20 additional
+ 36.6 opt.
parts to the weighing pan.
7. Now place unknown number of parts
+ 260 pcs
on pan (in this example, 260).
+297,4 + 1.1438
8. Print piece count.
nRef + 32
If you have selected [PRINT] wRef + 1.1438 g
“nRef” and “wRef” in the menu, Qnt + 260 pcs
these lines will be printed: G + 297.4 g
9. Unload scale 0 pcs
10. Repeat counting starting from step 7, if desired.
18
Example 2:
Counting parts into a full container
Settings: (changes in factory settings required for this example)
Autotare when the [START] is key is pressed: Off (Code 3. 7. 1)
Step Press key Display/Printout
1. Turn on scale, if power is off. [ON/OFF]
2. Place empty container [TARE]
0.0 g
NET
on scale and tare.
3. Place full container on scale [START]
+ 267.3 g NET
and initialize counting.
+ 267.3 SAMPLE
4. Set reference sample quantity; Brief display of:
in this example, turn selector
to “20”.
ref 20
5. Remove selected quantity of
reference parts from
+ 249.1 g NET
container.
+ 249.1 SAMPLE
6. Save reference piece count. [OK]
The scale now calculates
+ 274 pcs
NET
the number of parts and
+ 249.1 + 0.9100
displays the piece count.
7. Print piece count. [PRINT]
nRef + 20
If you have selected wRef + 0.9100 g
“nRef” and “wRef” in the menu, Qnt + 274 pcs
these lines will be printed: N + 249.1 g
T + 50.0 g
G# + 299.1 g
8. Unload scale
0 pcs
NET
9. Repeat counting starting from step 6, if desired.
19
Toggle between Units
Purpose
With this application program, you can toggle the
display of a weight back and forth between two
units.
Features
– Mass unit conversion of a displayed weight
by toggling
– Other features as for the basic weighing function
Factory Settings of the Parameters
Toggle between weights:
Counting without toggling weight unit (2. 1. 4)
Weight unit 1: grams (1. 7. 2)
Weight unit 2: pounds (3. 1. 5)
Additional Functions
In addition to the functions for:
– turning off scale power: [ON/OFF] key
– zeroing the scale: [ZERO] key
– taring the scale: [TARE] key
– printing: [PRINT] key
you can also access the following functions
from this application:
– toggle between weight units 1 and 2: [UNIT] key
– calibrate/adjust scale: press [TARE] for > 2 sec.
20
Menu Code Unit Conversion Factor Printout
(1. 7. 1)(3. 1. 1) Grams (o) 1.00000000000 o
(1. 7. 2)(3. 1. 2) Grams (g) 1.00000000000 g
(1. 7. 3)(3. 1. 3) Kilograms 0.00100000000 kg
(1. 7. 4)(3. 1. 4) Carats 5.00000000000 ct
(1. 7. 5)(3. 1. 5) Pounds 0.00220462260 lb
(1. 7. 6)(3. 1. 6) Ounces 0.03527396200 oz
(1. 7. 7)(3. 1. 7) Troy ounce 0.03215074700 ozt
(1. 7. 8)(3. 1. 8) Hong Kong taels 0.02671725000 tlh
(1. 7. 9)(3. 1. 9) Singapore taels 0.02645544638 tls
(1. 7.10)(3. 1.10) Taiwanese taels 0.02666666000 tlt
(1. 7.11)(3. 1.11) Grains 15.43235835000 GN
(1. 7.12)(3. 1.12) Pennyweights 0.64301493100 dwt
(1. 7.14)(3. 1.14) Parts per pound 1.12876677120 /lb
(1. 7.15)(3. 1 15) Chinese taels 0.02645547175 tlc
(1. 7.16)(3. 1.16) Mommes 0.26670000000 mom
(1. 7.17)(3. 1.17) Austrian carats 5.00000000000 K
(1. 7.18)(3. 1.18) Tola 0.08573333810 tol
(1. 7.19)(3. 1.19) Baht 0.06578947437 bat
(1. 7.20)(3. 1.20) Mesghal 0.21700000000 MS
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