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 Instruction Manual Price computing scales KERN RPB_D Version 2.
GB KERN RPB_D Version 2.5 05/2014 Instruction Manual Price computing scales Contents 1 Technical data ................................................................................................ 4 1.1 Dimensions ................................................................................................................................. 5 2 Appliance overview ....................................................................................... 6 2.1 2.2 Overview of display.................
10 RS 232 interface ........................................................................................... 30 10.1 10.2 10.3 10.4 Technical data .......................................................................................................................... 30 Pin allocation of balance output bushing: ................................................................................. 30 Fernsteuerbefehle ........................................................................................
1 Technical data Models without vertical display: KERN RPB 6K1DM RPB 15K2DM RPB 30K5DM 3 kg / 6 kg 6 kg / 15 kg 15 kg / 30 kg 1g/2g 2g/5g 5 g / 10 g Minimum load (Min) 20 g 40 g 100 g Verification value (e) 1g/2g 2g/5g 5 g / 10 g III III III 1g/2g 2g/5g 5 g / 10 g ± 1 g / ±2 g ± 2 g /± 5 g ± 5 g / ±10 g 5 kg; 1 kg (F2) 15 kg (M1) 20 kg; 10 kg (M1) Weighing range (max) Readability (d) Verification class Reproducibility Linearity Recommended adjusting weight (not supplied) Stabi
Models with post-mounted display: KERN RPB 6K1DHM RPB 15K2DHM RPB 30K5DHM 3 kg / 6 kg 6 kg / 15 kg 15 kg / 30 kg 1g/2g 2g/5g 5 g / 10 g Minimum load (Min) 20 g 40 g 100 g Verification value (e) 1g/2g 2g/5g 5g III III III 1 g/2 g 2 g/5 g 5 g/10 g ± 1 g / ±2 g ± 2 g /± 5 g ± 5 g / ±10 g 5 kg; 1 kg (F2) 10 kg; 5 kg (M1) 20 kg; 10 kg(M1) Weighing range (max) Readability (d) Verification class Reproducibility Linearity Recommended adjusting weight (not supplied) Stabilization time
2 Appliance overview Models without vertical display: 1. 2. 3. 4. 5. 6. 7. 8.
2.
Display weight Here, the weight of your goods is displayed. Indicator next to symbol displays: Battery very low GROSS� Gross weight Net weight NET � Stability display Zeroing display a Display basic price Basic price, can be switched over from € / kg or € / 100 g. Indicator next to symbol displays: €/kg Basic price in €/kg €/100 g Basic price in €/100 g Display sale price Here the sales price is displayed in Euro [€].
2.2 Keyboard overview Bubble level Selection ~ RPB_D-BA-e-1425 Function 3 Numerical keys, PLU-keys • Delete • • Save basic price (press and hold key for a long time) see chap. 8.2 Call-up basic price (press and hold key for a short time), see chap. 8.2 • Switch-over unit € / kg € / 100g • • Issue to external device Parameter selection • Calculating the change, see chap. 8.2 • • Taring, see chap. 7.3 Storing settings • Background illumination of the display, see chap. 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 weighings.
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.
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.
6.3 Transport screw Remove the transport screw essential (available only at 6 kg model) 1 To loosen the transportation lock, unscrew transportation screw [1] anti-clockwise. For transport, transport screw gently until it stops turning clockwise and then secure with lock nut. 6.3.1 Placing Level balance with foot screws until the air bubble of the water balance is in the prescribed circle.
6.3.2 Scope of delivery / serial accessories: • Balance, see chap. 2 • Mains adapter • Protective cover • Instruction 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 Battery power supply (option) 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).
4. Ensure that there are no objects on the weighing plate. Wait for stability display, then press . The required adjustment weight is shown. 5. Place the adjustment weight carefully in the centre of the weighing pan, press and the adjusting process will be started. 6. The adjustment process has been successfully completed. Take away adjustment weight. 7. Press and the scales will return to weighing mode.
6.8 Verification General: U According to EU directive 90/384/EEC balances must be officially verified if they are used as follows (legally controlled area): a) For commercial transactions if the price of goods is determined by weighing. b) For the production of medicines in pharmacies as well as for analyses in the medical and pharmaceutical laboratory. c) For official purpose. d) For manufacturing final packages. In cases of doubt, please contact your local trade in standard.
6.8.1 Adjustment controls and seals Possible seals: enforced, and 1. 2. 3. 4. or Seal mark 1 Cover Verification switch Verification wire 6.9 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. If this happened accidentally, please contact KERN. In calibrated scales the service mode is locked individually for each switch.
6.9.1 Service mode This overview of the service parameters is merely for checking the parameters set by the appropriate Bureau of Standards. No changes may be made. Access to menu: 1. Switch-on balance and during the selftest press . 2. Use the numeric keys to enter „0000“ for a password and confirm by . 3. Confirm password with 4. The first function „F0 CAL“ is displayed. Press adjusting switch.
Overview for service parameter: Factory settings are marked by [*]. Function Description Settings CAL F0 Adjustment function, see chpt. 6.
CAL Display internal resolution F6 XXX CAL CAL CAL CAL CAL CAL F7 CoUntS Interval size currency Coin Min Coin 1* Min Coin 2 Min Coin 5 Min Coin 10 rS-232 tYPE PRINTER On rS-232 tYPE oFF Off Baudrate F9 bAUd rAtE 2400 bAUd rAtE 4800* bAUd rAtE 9600 bAUd rAtE 19200 Not documented F10 rS-232 mode 8 n 1* rS-232 mode 7E1 rS-232 mode 7o1 Not documented F11 PErCnt tArE on PErCnt tArE off* Always use this setting Not documented F12 rAte X.
7 Operation Mode 7.1 Turn 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 shows "0" in all the three display windows your balance is ready to weigh. To switch-off push backward the switch-on/switch-out on the right lower side of the balance. 7.2 Zeroing Resetting to zero corrects the influence of light soiling on the weighing plate.
8 Weighing with price determination As soon as the goods to be weighed are placed on the balance and the basic price has been set the price is calculated automatically and displayed in the provided field. 8.1 Basic price entry via keyboard When using the weighing container, tare by using , see chpt. 7.3. Place goods to be weighed on balance. Enter basic price via numeric keys ~ automatically computed and displayed. and the sales price will be • The set basic price is deleted by • Using 8.1.
8.1.1 Unit switch over €/kg to €/100 g The following parameters should be set for this: To carry out these settings please proceed as follows: Switch-on balance and during the selftest press (should „oFF“ not be displayed, press .
Press (should „oFF“ not be displayed, press ) Press (should „on“ not be displayed, press Press ) again (should „on“ not be displayed, press ) Confirm by After a short acoustic signal the balance returns automatically into weighing mode. The function is activated. Use RPB_D-BA-e-1425 button to switch over between €/kg and €/ 100g.
8.2 Memory for basic price (PLU = Price look up) The balance is able to store up to 10 basic prices. Save: Enter basic price via the numeric keys Keep ~ . pressed for about 3 seconds Enter the desired PLU key via the numeric keys ~ . The basic price is saved at the entered PLU. Retrieve / show sales price: Place goods to be weighed Press Press desired PLU ~ and the saved basic price as well as the sales prices computed from it will be shown.
Before calling-up an other PLU, the displayed basic price has to be deleted by . Calculating the change: Press at the display sales price (e.g. 2.25 €). Enter the given amount of money, e.g. 5.00 € using the numeric keys ~ . The balance calculates the change and displays it, e.g. 2.75 €. Using or RPB_D-BA-e-1425 the balance returns into the weighing mode.
9 Additional useful functions 9.1 AUTO CLEAR Enable: To enable the AUTO-CLEAR function press ; the arrow above „“AUTO CLEAR“ will start flashing on the display at the same time. The set basic price is deleted automatically when balance is unloaded. Disable: Press anew, the AUTO-CLEAR function will be deactivated, the arrow above „AUTO CLEAR“ will extinguish. When the load is removed, the set basic price will be retained. 9.
9.3 AUTO POWER OFF To save the rechargeable battery (option), the automatic switch-off function can be activated, switch-off time selectable after 0, 3, 5 or 10 minutes. Switch-on balance and during the selftest press setting will appear. Press . „Auto off“ with the current repeatedly until the desired setting is displayed.
10 RS 232 interface 10.1 Technical data RS 232 connection to output of weighing data ASCII code Baud rate 600, 1200, 2400, 4800, 9600 8 data bits No parity 10.2 Pin allocation of balance output bushing: ２ １ ６ ３ ７ ４ ８ ５ ９ Pin 2 RXD Input Receiving data Pin 3 TXD Output Transmission data Pin 5 GND ― Signal ground 9pin D Connector: Balance Computer Pin 2 ― Pin 3 Pin 3 Pin 5 ― ― Pin 2 Pin 5 10.
11 Service, maintenance, disposal 11.1 Cleaning Before cleaning, please 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. Ensure that no liquid penetrates into the device and wipe 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 Instant help In case of an error in the program process, briefly turn off the balance and disconnect from power supply. The weighing process must then be restarted from the beginning. Fault Possible cause The displayed weight does not glow. • The balance is not switched on. • The mains supply connection has been interrupted (mains cable not plugged in/faulty). • Power supply interrupted. • Batteries are inserted incorrectly or empty • No batteries inserted.
13 Declaration of -Conformity KERN & Sohn GmbH D-72322 Balingen-Frommern Postfach 4052 E-Mail: info@kern-sohn.de Tel: 0049-[0]7433- 9933-0 Fax: 0049-[0]7433-9933-149 Internet: www.kern-sohn.
