KERN RPB_D, RPB 6K1DM, RPB 15K2DM, RPB 30K5DM Instruction 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
Price computing scales

KERN RPB_D

Version 2.4

04/2013
GB

RPB_D-BA-e-1324

RPB_D-BA-e-1324

2

GB

KERN RPB_D

Version 2.4 04/2013

Instruction Manual
Price computing scales

Contents

1 Technical data ................................................................................................ 4

1.1 Dimensions ................................................................................................................................. 5

2 Appliance overview ....................................................................................... 6

2.1 Overview of display ..................................................................................................................... 7

2.2 Keyboard overview ..................................................................................................................... 9

3 Basic Information (General) ................................................................ ........ 10

3.1 Proper use ................................................................................................................................ 10

3.2 Improper Use ............................................................................................................................ 10

3.3 Warranty ................................................................................................................................... 10

3.4 Monitoring of Test Resources ................................................................................................... 10

4 Basic Safety Precautions ............................................................................ 11

4.1 Pay attention to the instructions in the Operation Manual ........................................................ 11

4.2 Personnel training ..................................................................................................................... 11

5 Transport and storage ................................................................................. 11

5.1 Testing upon acceptance ......................................................................................................... 11

5.2 Packaging / return transport ..................................................................................................... 11

6 Unpacking, Setup and Commissioning ..................................................... 12

6.1 Installation Site, Location of Use .............................................................................................. 12

6.2 Unpacking ................................................................................................................................. 12

6.3 Transport screw ........................................................................................................................ 13

6.3.1 Placing ...................................................................................................................................... 13

6.3.2 Scope of delivery / serial accessories:...................................................................................... 14

6.4 Mains connection ...................................................................................................................... 14

6.5 Battery power supply (option) ................................................................................................... 14

6.6 Initial Commissioning ................................................................................................................ 14

6.7 Adjustment ................................................................................................................................ 15

6.8 Verification ................................................................................................................................ 17

6.8.1 Adjustment controls and seals .................................................................................................. 18

6.9 Checking the balance verification settings ............................................................................... 18

6.9.1 Service mode ............................................................................................................................ 19

7 Operation Mode ........................................................................................... 22

7.1 Turn on/off ................................................................................................................................ 22

7.2 Zeroing ...................................................................................................................................... 22

7.3 Weighing with taring ................................................................................................................. 22

7.4 Overload warning ...................................................................................................................... 22

8 Weighing with price determination ............................................................ 23

8.1 Basic price entry via keyboard .................................................................................................. 23

8.1.1 Unit switch over €/kg to €/100 g................................................................................................ 24

8.2 Memory for basic price (PLU = Price look up) .......................................................................... 26

9 Additional useful functions ......................................................................... 28

9.1 AUTO CLEAR ........................................................................................................................... 28

9.2 Display background illumination ............................................................................................... 28

9.3 AUTO POWER OFF ................................................................................................................. 29

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10 Service, maintenance, disposal .................................................................. 30

10.1 Cleaning .................................................................................................................................... 30

10.2 Service, maintenance ............................................................................................................... 30

10.3 Disposal .................................................................................................................................... 30

11 Instant help ................................................................................................... 31

11.1 Error messages ........................................................................................................................ 31

12 Declaration of -Conformity .......................................................................... 32

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1 Technical data

Models without vertical display:

KERN

RPB 6K1DM

RPB 15K2DM

RPB 30K5DM

Weighing range (max)

3 kg / 6 kg

6 kg / 15 kg

15 kg / 30 kg

Readability (d)

1 g / 2 g

2 g / 5 g

5 g / 10 g

Minimum load (Min)

20 g

40 g

100 g

Verification value (e)

1 g

2 g

5 g

Verification class

III

III

III

Reproducibility

1 g / 2 g

2 g / 5 g

5 g / 10 g

Linearity

± 1 g / ±2 g

± 2 g /± 5 g

± 5 g / ±10 g

Recommended adjusting
weight (not supplied)

6 kg (F2)

15 kg (M1)

30 kg (M1)

Stabilization time

2 s

Heating time (operating
temperature)

10 min

Net weight (kg)

3.8 kg

Basic price, can be
switched over

€/kg; €/100 g

Admissible
ambient temperature

-10° C to 40° C

Allowable air humidity

0 % - 80 % (non-condensing)

Electric Supply

Mains adapter 220 V – 240 V AC 50 Hz

balance 12 V, 500 mA

Rechargeable battery
(Option)

6 V, 4 Ah

Operating time – background lighting on 40 hrs.
Operating time – background lighting off 80 hrs.

Loading time approx. 12 hrs.

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Models with post-mounted display:

KERN

RPB 6K1DHM

RPB 15K2DHM

RPB 30K5DHM

Weighing range (max)

3 kg / 6 kg

6 kg / 15 kg

15 kg / 30 kg

Readability (d)

1 g / 2 g

2 g / 5 g

5 g / 10 g

Minimum load (Min)

20 g

40 g

100 g

Verification value (e)

1 g

2 g

5 g

Verification class

III

III

III

Reproducibility

1 g//2 g

2 g//5 g

5 g//10 g

Linearity

± 1 g / ±2 g

± 2 g /± 5 g

± 5 g / ±10 g

Recommended adjusting
weight (not supplied)

6 kg (F2)

15 kg (M1)

30 kg (M1)

Stabilization time

2 s

Heating time (operating
temperature)

10 min

Net weight (kg)

4.8 kg

Basic price, can be
switched over

€/kg; €/100 g

Admissible
ambient temperature

-10° C to 40° C

Allowable air humidity

0 % - 80 % (non-condensing)

Electric Supply

Mains adapter 220 V – 240 V AC 50 Hz

balance 12 V, 500 mA

Rechargeable battery
(Option)

6 V, 4 Ah

Operating time – background lighting on 40 hrs.
Operating time – background lighting off 80 hrs.

Loading time approx. 12 hrs.

1.1 Dimensions

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2 Appliance overview

Models without vertical display:

Models with post-mounted display:

1. Weighing plate / rechargeable battery compartment (under weighing plate)

2. Bubble level

3. Post-mounted display

4. Not documented

5. Foot screws

6. ON/OFF switch

7. Mains adapter connection

8. Adjustment switch

RPB_D-BA-e-1324

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Weight

Basic price

Sales price

2.1 Overview of display

Operator and secondary display (standard on the backside of models without
post-mounted display):

Weight

Basic price

Sales price

Storage battery status display

Post-mounted display for models with tripod:

RPB_D-BA-e-1324

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Display weight

Here, the weight of your goods is displayed.

Indicator  next to symbol displays:

Battery very low

GROSS

Gross weight

NET

Net weight

Stability display

Zeroing display

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 [€].

Indicator  next to symbol displays:

AUTO CLEAR

Set basic price is deleted automatically when
balance is unloaded

BAR

Calculating the change (see chap. 8.2)

Storage battery status display

red

Charging storage battery

green

Battery is completely discharged

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2.2 Keyboard overview

Bubble level

Selection

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. 9.2

If function is activated, the set basic price is automatically

deleted when the balance is unloaded, see chap. 9.1

Zeroing
Back to weighing mode

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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. 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

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.