KERN CPB-N User manual

KERN & Sohn GmbH
Ziegelei 1
D-72336 Balingen
E-Mail:
[e-mail]
Phone +49-[0]7433- 9933-0
Fax +49-[0]7433-9933-149
Internet:
www.kern-sohn.com
Instruction Manual
Counting balance
KERN CPB-N / CPB-DM
Version 2.4
08/2014
GB
CPB-N / CPB-DM-BA-e-1424

GB
KERN CPB-N / CPB-DM
Version 2.4 08/2014
Instruction Manual
Counting balance
Contents
1Technical data................................................................................................ 5
2Appliance overview ....................................................................................... 7
2.1 Overview of display.................................................................................................... 8
2.1.1 Display weight............................................................................................................................. 8
2.1.2 Display reference weight ............................................................................................................ 8
2.1.3 Display quantity........................................................................................................................... 8
2.2 Keyboard overview .................................................................................................... 9
3Basic Information (General)........................................................................ 10
3.1 Proper use................................................................................................................10
3.2 Improper Use............................................................................................................10
3.3 Warranty...................................................................................................................10
3.4 Monitoring of Test Resources...................................................................................11
4Basic Safety Precautions............................................................................ 11
4.1 Pay attention to the instructions in the Operation Manual.........................................11
4.2 Personnel training.....................................................................................................11
5Transport and storage................................................................................. 11
5.1 Testing upon acceptance..........................................................................................11
5.2 Packaging / return transport .....................................................................................11
6Unpacking, Setup and Commissioning ..................................................... 12
6.1 Installation Site, Location of Use...............................................................................12
6.2 Unpacking.................................................................................................................12
6.2.1 Placing...................................................................................................................................... 12
6.2.2 Scope of delivery...................................................................................................................... 14
6.3 Mains connection......................................................................................................14
6.4 Rechargeable battery operation (optional)................................................................14
6.5 Connection of peripheral devices..............................................................................14
6.6 Initial Commissioning................................................................................................14
6.7 Adjustment................................................................................................................15
6.7.1 Models CPB-N (non verified models) ....................................................................................... 15
6.7.2 Models CPB-DM (verified models) ........................................................................................... 17
6.8 Linearization (non-verified models only)....................................................................19
6.9 Verification................................................................................................................22
6.9.1 Adjustment switch and seals.................................................................................................... 23
6.10 Checking the balance verification settings................................................................23
6.11 Service mode (verified models).................................................................................24
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7Operation Mode ........................................................................................... 27
7.1 Switch on/off and set zero ........................................................................................27
7.2 Simple weighing........................................................................................................27
7.3 Weighing with taring .................................................................................................28
7.4 Display background illumination................................................................................30
8Piece counting ............................................................................................. 31
8.1 Determination of the reference weight by weighing...................................................31
8.2 Numeric entering of the reference weight .................................................................33
8.3 Automatic correction of the reference weight (verifiable models only).......................34
9Totalization................................................................................................... 35
9.1 Manual totalizing.......................................................................................................35
9.2 Automatic adding-up.................................................................................................38
10 Weighing to target quantity or target weight and tolerance check......... 39
10.1Tolerance check for target quantity...........................................................................39
10.2 Tolerance check for target weight.............................................................................41
11 Change readability (only models CPB-M).................................................. 43
12 Menu (non verifiable models) ..................................................................... 44
12.1 Menu overview..........................................................................................................45
13 Data output RS 232 C .................................................................................. 47
13.1 Technical data..........................................................................................................47
13.2 Remote control instructions ......................................................................................47
14 Service, maintenance, disposal.................................................................. 48
14.1 Cleaning ...................................................................................................................48
14.2 Service, maintenance ...............................................................................................48
14.3 Disposal....................................................................................................................48
14.4 Error messages ........................................................................................................48
15 Instant help................................................................................................... 49
16 Declaration of conformity ........................................................................... 50
CPB-N / CPB-DM-BA-e-14244

1 Technical data
KERN CPB 6K0.1N CPB 15K0.2N CPB 30K0.5N
Readability (d) 0.0001 kg 0.0002 kg 0.0005 kg
Weighing range (max) 6 kg 15 kg 30 kg
Reproducibility 0.0001 kg 0.0002 kg 0.0005 kg
Linearity ± 0.0002 kg ± 0.0004 kg ± 0.002 kg
Recommended adjusting
weight (not supplied) 5 kg (F2) +
1 kg (F2) 10 kg (F2) + 5 kg (F2) 20 kg (F2) + 10 kg (F2)
Weighing Units kg, lb
Stabilization time 2 sec.
Warm-up time 120 min.
Minimum piece weight 100 mg 250 mg 500 mg
Reference quantity freely selectable
Input Voltage 220 V – 240 V AC 50 Hz
Mains adapter
Secondary voltage 12 V, 500 mA
Rechargeable battery
(optional)
Operating time
Background illumination on: 60 h
Background illumination off: 70 h
Loading time of battery 12 h
Auto-Off (battery) Options: 3, 5, 15, 30 min.
Dimensions fully mounted
(W x D x H) 320 x 350 x 125 mm
Weighing surface 294 x 225 mm
Permissible ambient
condition 0° C to + 40° C
Humidity of air max. 80 % relative (not condensing)
Net weight (kg) 3.8 kg
CPB-N / CPB-DM-BA-e-1424 5

KERN CPB 6K1DM CPB 15K2DM CPB 30K5DM
Readability (d) 0.001 kg; 0.002 kg 0.002 kg;0.005 kg; 0.005 kg;0.01 kg;
Weighing range (max) 3 kg; 6 kg 6 kg; 15 kg 15 kg; 30 kg
Minimum weight (min) 20 g 40 g 100 g
Reproducibility 0.001 kg; 0.002 kg 0.002 kg; 0.005 kg 0.005 kg; 0.01 kg
Linearity ± 0.002 kg;
± 0.004 kg ± 0.004 kg; ± 0.01 kg ± 0.01 kg; ± 0.02 kg
Verification value (e) 1 g 2 g 5 g
Accuracy class III
Recommended adjusting
weight (not supplied) 5 kg (F2)
1 kg (F2) 10 kg (F2) 5 kg (F2) 20 kg (F2) 10 kg (F2)
Weighing Units kg
Stabilization time 2 sec.
Warm-up time 10 min.
Minimum piece weight 100 mg 250 mg 500 mg
Reference quantity freely selectable
Input Voltage 220 V – 240 V AC 50 Hz
Mains adapter
Secondary voltage 12 V, 500 mA
Rechargeable battery
(optional)
Operating time
Background illumination on: 60 h
Background illumination off: 70 h
Loading time of battery 14 h
Auto-Off (battery) Options: 3, 5, 15, 30 min.
Dimensions fully mounted
(W x D x H) mm 320 x 350 x 125 mm
Weighing surface 294 x 225 mm
Permissible ambient
condition -10° C to + 40° C
Humidity of air max. 80 % relative (not condensing)
Net weight (kg) 3.8 kg
CPB-N / CPB-DM-BA-e-14246

2 Appliance overview
1. Weighing plate / rechargeable battery compartment
(under weighing plate)
2. Bubble level
3. RS 232 interface
4. Footscrews
5. ON/OFF switch
6. Mains adapter connection
7. Adjustment switch
CPB-N / CPB-DM-BA-e-1424 7

2.1 Overview of display
Weight
Reference weight
Quantity
Battery
charge status display
2.1.1 Display weight
Here the weight of the load is displayed in [kg].
The arrows above the symbols show:
Battery very low
NET Net weight
Stability display
aZeroing display
2.1.2 Display reference weight
Here, the reference weight of a sample is displayed in [g]. This value is either
entered by user of calculated by balance.
The arrows above the symbols show:
Reference weight placed on balance too small
PRESET Stored target quantity / target weight
Number of pieces placed on balance too small
2.1.3 Display quantity
Here, all the pieces placed on balance are immediately displayed by number.
The arrows above the symbols show:
M Data in the summation memory
CPB-N / CPB-DM-BA-e-14248

2.2 Keyboard overview
Selection Function
•
Numeric keys
•
Deleting key
•
Call up target quantity and target weight mode
•Addition in sum memory
•Call up total memory
•Enter/display limit value for tolerance check
•
Invoke display background illumination (press button long
time)
•Output to external device (printer) or PC
•Enter reference weight through weighing
•Numeric entry reference weight
•Function /parameter selection
•Taring key
•Save
•Zeroing key
•Back to weighing mode
CPB-N / CPB-DM-BA-e-1424 9

3 Basic Information (General)
3.1 Proper use
The balance you purchased is intended to determine the weighing value of material
to be weighed. It is intended to be used as a “non-automatic balance”, i.e. the
material to be weighed is manually and carefully placed in the centre of the weighing
plate.. As soon as a stable weighing value is reached the weighing value can be
read.
3.2 Improper Use
Do not use balance for dynamic weighing. In the event that small quantities are
removed or added to the material to be weighed, incorrect weighing results can be
displayed due to the “stability compensation“. (Example: Slowly draining fluids from a
container on the balance.)
Do not leave permanent load on the weighing plate. This may damage the
measuring system.
Impacts and overloading exceeding the stated maximum load (max) of the balance,
minus a possibly existing tare load, must be strictly avoided. Balance may be
damage by this.
Never operate balance in explosive environment. The serial version is not explosion
protected.
The structure of the balance may not be modified. This may lead to incorrect
weighing results, safety-related faults and destruction of the balance.
The balance may only be used according to the described conditions. Other areas of
use must be released by KERN in writing.
3.3 Warranty
Warranty claims shall be voided in case
•Our conditions in the operation manual are ignored
•The appliance is used outside the described uses
•The appliance is modified or opened
•Mechanical damage or damage by media, liquids, natural wear and tear
•The appliance is improperly set up or incorrectly electrically connected
•The measuring system is overloaded
CPB-N / CPB-DM-BA-e-142410

3.4 Monitoring of Test Resources
In the framework of quality assurance the measuring-related properties of the
balance and, if applicable, the testing weight, must be checked regularly. The
responsible user must define a suitable interval as well as type and scope of this
test. Information is available on KERN’s home page (www.kern-sohn.com with
regard to the monitoring of balance test substances and the test weights required for
this. In KERN's accredited DKD calibration laboratory test weights and balances may
be calibrated (return to the national standard) fast and at moderate cost.
4 Basic Safety Precautions
4.1 Pay attention to the instructions in the Operation Manual
Carefully read this operation manual before setup and
commissioning, even if you are already familiar with KERN
balances.
Versions in other languages are non-binding translations.
The only binding version is the original document in German.
4.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
5 Transport and storage
5.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
5.2 Packaging / return transport
Keep all parts of the original packaging for a possibly required
return.
Only use original packaging for returning.
Prior to dispatch disconnect all cables and remove loose/mobile
parts.
Reattach possibly supplied transport securing devices.
Secure all parts such as the glass wind screen, the weighing
platform, power unit etc. against shifting and damage.
CPB-N / CPB-DM-BA-e-1424 11