KERN RPB-DM 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
Operating manual
Price calculating balance
KERN RFC
Type: RPB-DM
Version 1.3
2021-04
GB
RFC-BA-e-2113

2 RFC-BA-e-2113
GB
KERN RFC
Version 1.32021-04
Operating manual
Price calculating balance
Contents
1Technical data................................................................................................ 4
1.1 Dimensions (mm) ....................................................................................................................... 8
2Declaration of conformity ............................................................................. 9
3Appliance overview ..................................................................................... 10
3.1 Overview of display .................................................................................................................. 11
3.2 Keyboard overview................................................................................................................... 13
4Basic Information (General)........................................................................ 14
4.1 Proper use................................................................................................................................ 14
4.2 Improper Use............................................................................................................................ 14
4.3 Warranty................................................................................................................................... 14
4.4 Monitoring of Test Resources .................................................................................................. 14
5Basic Safety Precautions............................................................................ 15
5.1 Pay attention to the instructions in the Operation Manual........................................................ 15
5.2 Personnel training..................................................................................................................... 15
6Transport and storage................................................................................. 15
6.1 Testing upon acceptance ......................................................................................................... 15
6.2 Packaging / return transport..................................................................................................... 15
7Unpacking, Setup and Commissioning ..................................................... 16
7.1 Installation Site, Location of Use.............................................................................................. 16
7.2 Unpacking................................................................................................................................. 16
7.2.1 Placing...................................................................................................................................... 17
7.2.2 Scope of delivery / serial accessories:..................................................................................... 17
7.3 Mains connection...................................................................................................................... 17
7.4 Storage battery operation (optional)......................................................................................... 17
7.5 Initial Commissioning................................................................................................................ 18
7.6 Adjustment................................................................................................................................ 18
7.7 Verification................................................................................................................................ 21
7.7.1 Adjustment switch and seals.................................................................................................... 22
7.8 Checking the balance verification settings............................................................................... 22
8The menu...................................................................................................... 23
8.1 Access to menu........................................................................................................................ 23
8.2 Navigation in the menu:............................................................................................................ 23
8.3Menu overview ......................................................................................................................... 24
9Operation...................................................................................................... 26
9.1 Turn on/off ................................................................................................................................ 26
9.2 Zeroing ..................................................................................................................................... 26
9.3 Weighing with tare.................................................................................................................... 26
9.4 Overload warning ..................................................................................................................... 26
10 Weighing with price determination ............................................................ 27
10.1 Piece price entry via keyboard ................................................................................................. 27
10.2 Memory for piece price (PLU = Price look up) ......................................................................... 28
11 Additional useful functions......................................................................... 30
11.1 Enter piece price and calculate the total price (without weighing) ........................................... 30

RFC-BA-e-2113 3
11.2 AUTO CLEAR........................................................................................................................... 30
11.3 Display background illumination............................................................................................... 31
11.4 Units switch-over from € / kg € / 100g.................................................................................. 31
11.5 When used as a checkout........................................................................................................ 32
11.5.1 Preparation........................................................................................................................... 32
12 RS 232 interface........................................................................................... 34
12.1 Technical data .......................................................................................................................... 34
12.2 Pin allocation of balance output bushing:................................................................................. 34
12.3 Remote control commands ...................................................................................................... 34
12.4 Explanation of the data transfer ............................................................................................... 35
12.5 Print .......................................................................................................................................... 35
13 Servicing, maintenance, disposal .............................................................. 36
13.1 Cleaning ................................................................................................................................... 36
13.2 Servicing, maintenance............................................................................................................ 36
13.3 Disposal.................................................................................................................................... 36
14 Instant help................................................................................................... 37
14.1 Error messages ........................................................................................................................ 38

4 RFC-BA-e-2113
1 Technical data
Models without vertical display:
KERN (Typ) TRFC 3K3M-A RFC 6K3M
Model RPB 3K3DM RPB 6K1DM
Weighing range (max) 3 kg 3 kg / 6 kg
Readability (d) 1 g / 2 g 1 g / 2 g
Minimum load (Min) 20 g 20 g
Verification value (e) 0.5 g / 1 g 1 g / 2g
Verification class III III
Reproducibility 1 g / 2 g 1 g / 2 g
Linearity ± 3 g / ± 6 g ± 3 g / ± 6 g
Recommended adjusting
weight (not supplied) 3 kg (M1) 6 kg (M1)
Stabilisation time 2 s
Heating time (operating
temperature) 10 min
Net weight (kg) 2.8 kg 4.1 kg
Piece
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
(optional) 6 V, 3.2 Ah
Operating time – background lighting OFF 60 hrs.

RFC-BA-e-2113 5
KERN (Typ) RFC 15K3M RFC 30K3M
Model RPB 15K2DM RPB 30K5DM
Weighing range (max) 6 kg / 15 kg 15 kg / 30 kg
Readability (d) 2 g / 5 g 5 g / 10 g
Minimum load (Min) 40 g 100 g
Verification value (e) 2 g / 5g 5 g / 10 g
Verification class III III
Reproducibility 2 g / 5 g 5 g / 10 g
Linearity ± 2 g /± 5 g ± 5 g /± 10 g
Recommended adjusting
weight (not supplied) 15 kg (M1) 30 kg (M1)
Stabilisation time 2 s
Heating time (operating
temperature) 10 min
Net weight (kg) 4.1 kg
Piece
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
(optional) 6 V, 3.2 Ah
Operating time – background lighting OFF 60 hrs.

6 RFC-BA-e-2113
Models with post-mounted display:
KERN (Typ) TRFC 3K3HM-A RFC 6K3HM
Model RPB 3K3DHM RPB 6K1DHM
Weighing range (max) 3 kg 3 kg / 6 kg
Readability (d) 1 g / 2 g 1 g / 2 g
Minimum load (Min) 20 g 20 g
Verification value (e) 0.5 g / 1 g 1 g / 2 g
Verification class III III
Reproducibility 1 g / 2 g 1 g / 2 g
Linearity ± 3 g / ± 6 g ± 3 g / ± 6 g
Recommended adjusting
weight (not supplied) 3 kg (M1) 6 kg (M1)
Stabilisation time 2 s
Heating time (operating
temperature) 10 min
Net weight (kg) 2.8 kg 4.1 kg
Piece
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
(optional) 6 V, 3.2 Ah
Operating time – background lighting OFF 60 hrs.

RFC-BA-e-2113 7
KERN (Typ) RFC 15K3HM RFC 30K3HM
Model RPB 15K2DHM RPB 30K5DHM
Weighing range (max) 6 kg / 15 kg 15 kg / 30 kg
Readability (d) 2 g / 5 g 5 g / 10 g
Minimum load (Min) 40 g 100 g
Verification value (e) 2 g / 5 g 5 g / 10 g
Verification class III III
Reproducibility 2 g / 5 g 5 g / 10 g
Linearity ± 6 g /± 15 g ± 15 g / ± 30 g
Recommended adjusting
weight (not supplied) 15 kg (M1) 30 kg (M1)
Stabilisation time 2 s
Heating time (operating
temperature) 10 min
Net weight (kg) 4.1 kg
Piece
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
(optional) 6 V, 3.2 Ah
Operating time – background lighting OFF 60 hrs.

8 RFC-BA-e-2113
1.1 Dimensions (mm)
Models without vertical display:

RFC-BA-e-2113 9
Models with post-mounted display:
2 Declaration of conformity
The current EC/EU Conformity declaration can be found online in:
www.kern-sohn.com/ce

10 RFC-BA-e-2113
3 Appliance overview
Models without vertical display:
Models with post-mounted display:
1. Weighing pan
2. Bubble level
3. Post-mounted display
4. Footscrews
5. Mains adapter connection
6. ON/OFF switch
7. RS 232 interface
8. Battery compartment
9. Adjustment switch