KERN & Sohn GmbH Ziegelei 1 D-72336 Balingen E-Mail: info@kern-sohn.com Phone: +49-[0]7433- 9933-0 Fax: +49-[0]7433-9933-149 Internet: www.kern-sohn.com Operating manual Table scales KERN GAB-P Version 1.
GB KERN GAB-P Version 1.1 03/2014 Operating manual Table scale Contents 1 TECHNICAL DATA ............................................................................................. 4 2 APPLIANCE OVERVIEW ................................................................................... 6 2.1 Overview of display .................................................................................................................. 8 2.2 Keyboard overview ................................................
7 OPERATION ..................................................................................................... 21 7.1 Switching on/off...................................................................................................................... 21 7.2 Zeroing..................................................................................................................................... 21 7.3 Taring .......................................................................................
1 Technical data KERN GAB 6K-5P GAB 10K-4P GAB 30K-4P 6 kg 12 kg 30 kg Readability (d) 0.05 g 0.1 g 0.2 g Reproducibility 0.05 g 0.1 g 0.2 g ± 0.15 g ± 0.3 g ± 0.
KERN GAB 6K-3PM GAB 10K-3PM GAB 30K-3PM 3 kg / 6 kg 6 kg / 15 kg 15 kg / 30 kg Readability (d) 1g/2g 2g/5g 5 g / 10 g Minimum load 20 g 40 g 100 g Verification value 1g/2g 2g/5g 5 g / 10 g Verification class III III III 1 g /2 g 2g/5g 5 g / 10 g ±1g/2g ±2g/5g ± 5 g / 10 g 2s 2s 2s 6 kg (M1) 15 kg (F2) 30 kg (M1) Weighing range (max) Reproducibility Linearity Stabilization time Recommended adjusting weight (not supplied) Heating time (operating temperature) Net weight (kg)
2 Appliance overview 1. 2. 3. 4. 5. 6.
. Transport guard screw 8. Levelling screw 9. Connection of mains adapter 10. ON/OFF switch 11. Seal of verifiable models 12.
2.1 Overview of display Display Description Description 1 The battery capacity display appears when the capacity of the battery is getting low 2 Stability display Scales are in a steady state 3 weighing units selectable Non-verifiable models: kg, t, lb, oz Verifiable models: g, kg 4 GROSS Gross weight display NET ZERO Showing gross weight Net weight display Displays the net weight Zeroing display Should the balance not display exactly zero 0 despite empty scale pan, press the button.
2.2 Keyboard overview 1 2 1. Bubble level Level balance with foot screws until the air bubble of the water balance is in the prescribed circle. 2. Storage battery status display Power supply connected • • Icon is glowing for power supply via power pack If the LED lights green, the rechargeable battery is fully charged.
Selection Function F In piece counting mode change between reference weight - item number - total weight UNIT In weighing mode: Weighing units switch-over PRINT • Data transfer via interface • Save value to memory if memory function “automatic“, is disabled • ESC In menu: Select main menu items Call up menu: Press both buttons at the same time Return to weighing mode Changes between weighing mode and quantity counting mode C % • Delete displayed value • In menu: Return to weighing mode C
2.3 Dimensions 3 Basic Information (General) 3.1 Proper use The balance acquired by you serves to determine weight. 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 pan. As soon as the goods to be weighed are placed on the balance and the weight has been displayed. 3.2 Improper Use Do not use balance for dynamic weighing.
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 3.
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. All language versions contain a non-binding translation. The German original document is binding. 4.2 Personnel training The appliance may only be operated and maintained by trained personnel. 5 Transport and storage 5.
6 Unpacking, Setup and Commissioning 6.1 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.
6.2 Unpacking / installation Carefully remove the balance from the packaging, remove plastic cover and setup balance at the intended workstation. Make sure that all transport locking devices are removed To release the transport lock unscrew the transport screw 1 – non verifiable models or 2 –verifiable models counter-clockwise. For transportation carefully screw-in transport screw clockwise till to the stopper and then fix it using locknut.
6.3 Scope of delivery Serial accessories: • Balance, see chap. 2 • Mains adapter • Rechargeable battery • Operating manual 6.4 Mains connection Power is supplied via the external mains adapter. The stated voltage value must be the same as the local voltage. Only use KERN original mains adapter. Using other makes requires consent by KERN. 6.5 Rechargeable battery operation The rechargeable battery is charged via the delivered power supply.
6.7 Adjustment As the acceleration value due to gravity is not the same at every location on earth, each balance must be coordinated - in compliance with the underlying physical weighing principle - to the existing acceleration due to gravity at its place of location (only if the balance has not already been adjusted to the location in the factory).
6.8 Non-verifiable models: Switch on the balance and during the selftest press the and the button at the same time. „UnLoad“ is displayed shortly. Ensure that there are no objects on the weighing pan. „LoAd“ is displayed Place adjustment weight, the stability display appears After the adjustment the balance will carry out a self-test. „PASS“ will be displayed shortly. Remove adjusting weight during selftest, the appliance will return into weighing mode automatically.
Carefully place adjusting weight in the centre of the weighing plate. Wait for stability display , then press „PASS“ will be displayed shortly. . After the adjustment the balance will carry out a self-test. Remove adjusting weight during selftest, the appliance will return into weighing mode automatically. An adjusting error or incorrect adjusting weight will be indicated by the error message; repeat adjustment procedure. 6.
6.10.1 Position of seals and adjusting switch 1. 2. 3. 4. Seal of approval Cover Housing screw Adjustment switch 6.11 Checking the balance verification settings For the adjustment, the balance must be switched over to service mode. In the service mode the parameters of the balance can be modified. The service parameters may not be modified, as this could damage the balance settings. In calibrated scales the service mode is locked individually for each switch.
7 Operation 7.1 Switching on/off To turn on/off confirm forward at the underneath on the right of the scale and keep pressed for a little while. The balance will carry out a self-test. As soon as the weight display appears, the balance is ready for weighing. To switch-off push backward the switch-on/switch-out on the right lower side of the balance. Printout example: No.1 2013/08/10 N: G T: 18:39 5.000kg 5.000kg 0.000kg 7.
7.3 Taring Deposit weighing receptacles (example) After successful standstill control press the button. The zero display and „NET“ will appear. The weight of the weighing container is now internally saved. Place material to be weighed and read weight value (example) The taring process can be repeated any number of times, e.g. when adding several components for a mixture (adding). The limit is reached when the whole weighing range is exhausted.
7.4 Overload warning Overloading exceeding the stated maximum load (max) of the balance, minus a possibly existing tare load, must be strictly avoided. This could cause damage to the balance. Exceeding maximum load is indicated by the display of „----“ and an audio sound. Unload balance or reduce preload. 7.5 Weighing units switch-over Use the button to switch over between the individual weighing units.
7.6 Percent weighing Percent weighing allows to display weight in percent, in relation to a reference weight. Switch on balance, wait for zero display Put a reference weight on the weighing plate, which corresponds to 100 %. (example) Press , in the display 100,00 % appears Remove the reference weight The display will return to 0.00 % Place a sample The display will show the percentage value of the sample in relation to the reference value.
7.7 Parts counting Before the balance can count parts, it must know the average part weight (i.e. reference). Proceed by putting on a certain number of the parts to be counted. The balance determines the total weight and divides it by the number of parts (the so-called reference quantity). Counting is then carried out on the basis of the calculated average piece weight. The higher the reference quantity the higher the counting exactness. Place reference quantity in weighing mode.
7.8 Weighing with tolerance range You can set an upper or lower limit when weighing with tolerance range and thus ensure that the material to be weighed remains exactly within the set limits. Exceeding or dropping below the tolerance range is indicated by an audio sound or optical signal. Audio signal: The audio sound depends on the setting in menu block “bP“ (see chap.8.2.
Settings: In weighing mode press , the left number flashes and the symbol „HI“ will be displayed. Enter upper limit by pressing and . (example) Acknowledge with . The weighing scales will change to the display of the lower limit. Enter the lower limit value and confirm with (example) The scales will change to zero display Weighing with tolerance range Tare when using a weighing container. Put on material to be weighed, tolerance control is started.
7.9 Manual totalizing This function is used to add the individual weighing values to the summation memory and to provide a printout via the installed printer, when the stability display appears button is pressed. and the (in order to set this function see chap. 8.2 „ACC on“) Place material to be weighed A Wait until stability display appears (example) Press „ACC 1“ followed by the weight value will appear.
Display of the saved weighing data: With the weighing platform unloaded, press and the number of weighing processes, followed by the total weight will be displayed for 2 sec and afterwards printed. Delete weighing data: With the weighing platform unloaded, press 2x. The data in the summation memory are deleted. Printout example: 1. Weighing No.1 2013/08/10 N: G T: 18:39 1.000kg 1.000kg 0.000kg 1. Weighing Date/time Net weight Gross weight Tare value 18:39 2.000kg 2.000kg 0.000kg 2.
7.10 Automatic adding-up This function is used to add the individual weighing values automatically into the summation memory and to provide a printout via the installed printer. To set this function, see chap. 8.2 „AU on“ Place material to be weighed A After stabilisation display has taken place, you will hear an audio sound. The symbol for „AUTO“ appears. (example) The weighing value will be saved to the summation memory.
Display of the saved weighing data: With the weighing platform unloaded, press and the number of weighing processes, followed by the total weight will be displayed for 2 sec and afterwards printed. Delete weighing data: With the weighing platform unloaded, press 2x. The data in the summation memory are deleted. Printout example: 1. Weighing No.1 2013/08/10 N: G T: 18:39 1.000kg 1.000kg 0.000kg 1. Weighing Date/time Net weight Gross weight Tare value 18:39 2.000kg 2.000kg 0.000kg 2.
8 The menu 8.1 Navigation in the menu: Call up menu Menu block Select main menu Menu item Select submenu Confirm setting Modify/change the active digit Return to weighing mode 32 and Press at the same time in weighing mode the individual menu items of the main menu can Using be selected subsequently Switch over into the available menu items of the submenu using Use . to save the selected setting • Change to the left • Change to the right • Increase number Press to exit menu.
8.2 Menu overview 8.2.
bP0* Acoustic signal SPd 15* Display speed bP 0 bP 1 bP 2 No audio sound during tolerance weighing Audio sound when weight is within tolerance range Audio sound when weight is beyond tolerance range SPd 15 SPd 30 SPd 7.5 not documented oF 0* Auto off Auto off after 0, 3, 5, 15, or 30 minutes return Return to weighing mode 8.2.
beeP 0* Acoustic signal SPd 15* Display speed beeP 0 beeP 11 beeP 2 No audio sound during tolerance weighing Audio sound when weight is within tolerance range Audio sound when weight is beyond tolerance range SPd 15 SPd 30 SPd 7.
9 Printer 9.1 Change paper roll To open, lift green cover and pull upwards. Insert new paper roll as shown on diagram. Pull a short length of the end of the paper roll towards the front and close cover. Press evenly from both sides on the cover (See arrows). Press 36 and the receipt will be moved on.
10 Data output RS 232C The balance is typically equipped with a RS 232C interface. 10.1 Technical data ASCII code 8 data bits no parity bit Baud rate 9600 baud 10.2 Pin allocation of the balance output socket (front view) 5 4 9 3 8 2 7 1 Pin 2: Pin 3: Pin 5: Output Input Signal ground 6 10.3 Remote control instructions Com mand Function T No data are sent, the balance carries out the tare function. Z No data are sent, the zero-display appears.
11 Maintenance, servicing, removal, error messages 11.1 Clean Before cleaning, disconnect the appliance from the operating voltage. Please do not use aggressive cleaning agents (solvents or similar agents), but a cloth dampened with mild soap suds. Take care that the device is not penetrated by fluids and polish it with a dry soft cloth. Loose residue sample/powder can be removed carefully with a brush or manual vacuum cleaner. Spilled weighing goods must be removed immediately. 11.
12 Declaration of conformity KERN & Sohn GmbH D-72322 Balingen-Frommern Postbox 4052 E-Mail: info@kern-sohn.de Phone: 0049-[0]7433- 9933-0 Fax: 0049-[0]7433-9933-149 Internet: www.kern-sohn.
