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GAB-N

KERN GAB-N Operating Instructions Manual

KERN & Sohn GmbH
Ziegelei 1 D-72336 Balingen email: info@kern-sohn.com
Operating instructions Bench scales
KERN GAB-N
Version 1.5
10/2013 GB
GAB-N-BA-e-1315
2 GAB-N-BA-e-1315
GB
KERN GAB-N
Version 1.5 10/2013
Operating Instructions Bench Scales
Table of Contents
1 Technical Data ................................................................................................ 4
2 Basic Information (General) ........................................................................... 6
2.1 Proper use ................................................................................................................................... 6
2.2 Improper Use ............................................................................................................................... 6
2.3 Warranty ...................................................................................................................................... 7
2.4 Monitoring of Test Resources ...................................................................................................... 7
3 Basic Safety Precautions ............................................................................... 7
3.1 Pay attention to the instructions in the Operation Manual ........................................................... 7
3.2 Personnel training ........................................................................................................................ 7
4 Transportation & Storage ............................................................................... 8
4.1 Testing upon acceptance ............................................................................................................ 8
4.2 Packaging / return transport ........................................................................................................ 8
5 Unpacking, Setup and Commissioning ........................................................ 8
5.1 Installation Site, Location of Use ................................................................................................. 8
5.2 Unpacking/installation ................................................................................................................ 10
5.2.1 Scope of delivery / serial accessories ................................................................................... 11
5.3 Mains connection ....................................................................................................................... 11
5.4 Rechargeable battery operation (option) ................................................................................... 12
5.5 Connection of peripheral devices .............................................................................................. 12
5.6 Initial Commissioning ................................................................................................................. 12
6 Appliance overview ...................................................................................... 13
7 Overview of displays .................................................................................... 14
8 Keyboard overview ....................................................................................... 15
9 Adjustment .................................................................................................... 16
9.1 Verified models .......................................................................................................................... 17
9.2 Non-verifiable models: ............................................................................................................... 18
9.3 Verification ................................................................................................................................. 19
9.4 Linearization (non-verified models only) .................................................................................... 21
10 Operation ....................................................................................................... 23
10.1 Weighing .................................................................................................................................... 23
10.2 Weighing with tare ..................................................................................................................... 23
10.3 Percent weighing ....................................................................................................................... 24
10.4 Parts counting ............................................................................................................................ 25
10.5 Weighing with tolerance range .................................................................................................. 26
10.5.1 Traffic light function ............................................................................................................... 26
10.6 Manual totalizing ........................................................................................................................ 28
10.7 Automatic adding-up .................................................................................................................. 30
GAB-N-BA-e-1315 3
11 The menu ....................................................................................................... 32
11.1 Navigation in the menu: ............................................................................................................. 32
11.1.1 Non verifiable models ............................................................................................................ 32
11.1.2 Verifiable models ................................................................................................................... 32
11.2 Overview: ................................................................................................................................... 33
11.2.1 Non verifiable models ............................................................................................................ 33
11.2.2 Verifiable models ................................................................................................................... 35
12 Data output .................................................................................................... 36
12.1 RS232 interface ......................................................................................................................... 36
12.1.1 Technical data ....................................................................................................................... 36
12.1.2 Pin allocation of balance output bushing: .............................................................................. 36
12.1.3 Explanation of the data transfer ............................................................................................. 37
12.2 Remote control instructions ....................................................................................................... 37
13 Service, maintenance, disposal ................................................................... 38
13.1 Cleaning ..................................................................................................................................... 38
13.2 Service, maintenance ................................................................................................................ 38
13.3 Disposal ..................................................................................................................................... 38
13.4 Error messages ......................................................................................................................... 39
14 Instant help .................................................................................................... 40
15 Declaration of -Conformity ........................................................................... 41
4 GAB-N-BA-e-1315
1 Technical Data
KERN
GAB 6K1DNM
GAB 15K2DNM
GAB 30K5DNM
Readability (d)
1 g /2 g
2 g /5 g
5 g /10 g
Weighing range (max)
3 kg /6 kg
6 kg /15 kg
15 kg /30 kg
Reproducibility
1 g /2 g
2 g /5 g
5 g /10 g
Linearity
± 1 g / 2 g
± 4 g / 10 g
± 5 g / 10 g
Stabilization time
2 s
2 s
2 s
Verification value (e)
1 g /2 g
2 g /5 g
5 g /10 g
Verification class
III
III
III
Minimum weight (min)
20 g
40 g
100 g
Weighing Units
kg
kg
kg
Recommended adjusting weight (not supplied)
6 kg (M1)
15 kg (F2)
30 kg (M1)
Warm-up time
10 min.
10 min.
10 min.
Minimum unit weight at piece count
0.2 g
0.5 g
1 g
Admissible ambient conditions
-10° C to +40° C
Humidity of air
max. 80 % relative (not condensing)
Weighing surface (mm)
294 x 225
Dimensions of the housing (B x D x H) (mm)
320 x 330 x 125
Electric Supply
Supply voltage: 220V-240V AC 50 Hz
Mains adapter: 12 V, 500 mA
Rechargeable battery, not included
Working life approx. 40 h (with background light)
Working life approx. 90 h (without background light)
Loading time approx. 12 hrs.
Net weight (kg)
4.4 kg
interface
RS 232C
GAB-N-BA-e-1315 5
KERN
GAB 6K0.05N
GAB 12K0.1N
GAB 30K0.2N
Readability (d)
0.05 g
0.1 g
0.2 g
Weighing range (max)
6 kg
12 kg
30 kg
Reproducibility
0.05 g
0.1 g
0.2 g
Linearity
± 0.15 g
± 0.3 g
± 0.6 g
Stabilization time
2 s
2 s
2 s
Weighing Units
kg, g
kg, g
kg, g
Recommended adjusting weight (not supplied)
6 kg (F2)
12 kg (F2)
20 kg (F1) 10 kg (F1)
Warm-up time
2 h
2 h
2 h
Minimum unit weight at piece count
0.05 g
0.1 g
0.2 g
Admissible ambient conditions
0° C to 40° C
Humidity of air
max. 80 % relative (not condensing)
Weighing surface (mm)
294 x 225
Dimensions of the housing (B x D x H) (mm)
320 x 330 x 125
Electric Supply
Supply voltage: 220V-240V AC 50 Hz
Mains adapter: 12 V, 500 mA
Rechargeable battery, not included
Working life approx. 40 h (with background light)
Working life approx. 90 h (without background light)
Loading time approx. 12 hrs.
Net weight (kg)
3.06 kg
interface
RS 232C
6 GAB-N-BA-e-1315
Dimensions:
2 Basic Information (General)
2.1 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.
2.2 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“ in the balance. (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.
GAB-N-BA-e-1315 7
2.3 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
2.4 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.
3 Basic Safety Precautions
3.1 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.
3.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
8 GAB-N-BA-e-1315
4 Transportation & Storage
4.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the appliance itself when unpacking for possible visible damage.
4.2 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 transport securing devices. (see chapter 5.2) Secure all parts such as the glass wind screen, the weighing
platform, power unit etc. against shifting and damage.
5 Unpacking, Setup and Commissioning
5.1 Installation Site, Location of Use
The balances are designed in a way that reliable weighing results are achieved in common conditions of use. You will work accurately and fast, if you select the right location for your balance.
GAB-N-BA-e-1315 9
Therefore, observe the following for the installation site:
Place scales on a stable, even surface Avoid extreme heat as well as temperature fluctuation caused by installing
next to a radiator or in the direct sunlight; Protect the balance against direct draughts due to open windows and doors; Avoid jarring during weighing; Protect the balance against high humidity, vapors and dust; Do not expose the device to extreme dampness for longer periods of time.
Non-permitted condensation (condensation of air humidity on the appliance)
may occur if a cold appliance is taken to a considerably warmer environment.
In this case, acclimatize the disconnected appliance for ca. 2 hours at room
temperature. Avoid static charge of goods to be weighed or weighing container.
Major display deviations (incorrect weighing results) may be experienced should electromagnetic fields (e.g. due to mobile phones or radio equipment), static electricity accumulations or instable power supply occur. Change location or remove source of interference.
10 GAB-N-BA-e-1315
5.2 Unpacking/installation
Carefully remove the balance from the packaging, remove plastic cover and setup balance at the intended workstation.
Ensure that transport guard has been removed (only existing in 6 kg models)
To loosen the transport guard screw out transport screw [1] anticlockwise. For transportation screw down the transport screw till to the stop in clockwise
direction.
1
GAB-N-BA-e-1315 11
Levelling
Level balance with foot screws until the air bubble of the water balance is in the prescribed circle.
5.2.1 Scope of delivery / serial accessories
Balance Mains power supply Operating instructions
5.3 Mains connection
Power is supplied via the external mains adapter. The stated voltage value must be the same as the local voltage. Only use original KERN mains adapters. Using other makes requires consent by KERN.
12 GAB-N-BA-e-1315
5.4 Rechargeable battery operation (option) The internal battery is charged with the supplied mains cable.
Before the first use, the rechargeable battery should be charged by connecting it to the mains power cable for at least 15 hours. The operating time of the battery is about. 70h. Charging time until complete recharging ca. 12h. To save battery life, the background light can be switched off in the menu (See chap.. 11 menu).
An arrow appearing on the weight display below the battery icon indicates that the capacity of the rechargeable battery is low. The balance will be ready to operate for about another 10 hrs., then it will switch off automatically. Connect the power cable as soon as possible to load the rechargeable battery.
5.5 Connection of peripheral devices
Before connecting or disconnecting of additional devices (printer, PC) to the data interface, always disconnect the balance from the power supply. With your balance, only use accessories and peripheral devices by KERN, as they are ideally tuned to your balance.
5.6 Initial Commissioning
In order to obtain exact results with the electronic balances, your balance must have reached the operating temperature (see warming up time chap. 1). During this warming up time the balance must be connected to the power supply (mains, accumulator or battery). The accuracy of the balance depends on the local acceleration of gravity. Strictly observe hints in chapter Adjustment.
GAB-N-BA-e-1315 13
6 Appliance overview
1
2
3
4
5 6
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
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