KERN & Sohn GmbH www.kern-sohn.com
User manual
Platform scales
KERN EFC
TEFC-A type
Version 1.0
2021-06
GB
Ziegelei 1
72336 Balingen-Frommern
Germany
+0049-[0]7433-9933-0
+0049-[0]7433-9933-149
info@kern-sohn.com
TEFC_A-BA-e-2110
KERN EFC
Platform scales
GB
Ver. 1.0 2021-06
User man ual
Contents
1 Technical specification ............................................................................................ 4
2 Declaration of Confor mity ........................................................................................ 8
3 Device overview ...................................................................................................... 9
3.1 Parts ................................................................................................................. 9
3.2 Keyboard ........................................................................................................ 10
3.2.1 Introducing the numerical value ............................................................... 11
3.3 Symbol ........................................................................................................... 11
4 Basic instructions (general information) ................................................................ 12
4.1 Intended use ................................................................................................... 12
4.2 Non-intended use ........................................................................................... 12
4.3 Guarantee ...................................................................................................... 12
4.4 Testing equipment sup erv i si on ....................................................................... 13
5 Basic safety instructions ........................................................................................ 13
5.1 Compliance with the instructions included in the user manual ....................... 13
5.2 Personnel training........................................................................................... 13
6 Transport and storage ........................................................................................... 13
6.1 Checking during recept ion .............................................................................. 13
6.2 Packaging / return transport ........................................................................... 13
7 Unpacking, positioning and start-up ...................................................................... 14
7.1 Installation place, op er ati on pl ace .................................................................. 14
7.2 Unpacking and check ..................................................................................... 14
7.3 Installation, setting and leveling ...................................................................... 15
7.4 Pin use for the connection cable .................................................................... 16
7.5 Power supply .................................................................................................. 17
7.6 Rechargeable battery oper ation ..................................................................... 17
7.6.1 Battery charging ....................................................................................... 18
7.7 Connecting peripher als ................................................................................... 18
7.8 First start ........................................................................................................ 18
7.9 Adjustment ..................................................................................................... 18
2 TEFC_A-BA-e-2110
8 Operation .............................................................................................................. 20
8.1 Switching on/off .............................................................................................. 20
8.2 Zeroing ........................................................................................................... 20
8.3 Ordinary weighing........................................................................................... 20
8.4 Weighing with tare .......................................................................................... 21
8.5 Weight unit switching ...................................................................................... 21
8.6 Counting the number of pieces ....................................................................... 22
8.7 Test weighing ................................................................................................. 23
8.7.1 Test weighing ........................................................................................... 23
8.7.2 Check counting ........................................................................................ 26
8.8 Summing ........................................................................................................ 28
8.9 Animal weighing ............................................................................................. 29
9 Setup menu ........................................................................................................... 30
10 RS-232 interface ................................................................................................ 32
10.1 Technical specification ................................................................................ 32
10.2 Protocol template (KERN YKB-01N) ........................................................... 32
10.3 Printout protocol (continuous data transmission) ........................................ 32
11 Maintenance, servic e and dis posal .................................................................... 33
11.1 Cleaning ...................................................................................................... 33
11.2 Maintenance and service ............................................................................ 33
11.3 Disposal ...................................................................................................... 33
12 Error messages ................................................................................................. 33
13 Help for any minor failures ................................................................................. 34
TEFC_A-BA-e-2110 3
1 Technical specification
KERN EFC 30K-3 EFC 30K-3L
Product number / type TEFC 30K-3-A TEFC 30K-3L-A
Interval (d) 0.002 kg 0.002 kg
Weighing range (Max) 30 kg 30 kg
Reproducibility 0.005 kg/0.01 kg 0.005 kg/0.01 kg
Linearity ±0.004 kg (2 d) ±0.004 kg (2 d)
Minimum piece weight when
counting the number of pieces in laboratory conditions*
Minimum piece weight when
counting the number of pieces in standard conditions**
Recommended
adjustment weight
(not delivered)
1 g (0.5 d) 1 g (0.5 d)
10 g 10 g
30 kg (M1) 30 kg (M1)
Possible adjustment points 10–100% Max 10–100% Max
Settling time (standard) 3 s
Heating time 30 min
Weight units kg, g, lb, oz, PCS
Air humidity max. 80%, relative (non-condensing)
Permissible
ambient temperature
Input voltage
of the device
Input voltage of
the power supply
Battery 3.7 V / 4 Ah
Rechargeable
battery operation
Display housing
dimensions [mm]
Scale plate,
stainless steel [mm]
400 × 300 × 124 mm 500 × 400 × 120 mm
operating time 80 h (illumination off)
operating time 50 h (illumination on)
252 × 162 × 57 (width × depth × height)
0°C to +40°C
5 V, 1 A
100–240 VAC; 50/60 Hz
charging time ca. 5 h
Net weight [kg] 17 kg 19 kg
Interface RS-232
4 TEFC_A-BA-e-2110
Weighing range (Max)
60 kg
60 kg
Settling time (standard)
3 s
Weight units
kg, g, lb, oz, PCS
Air humidity
max. 80%, relative (non-condensing)
Input voltage
Display housing
KERN EFC 60K-3 EFC 60K-3L
Product number / type TEFC 60K-3-A TEFC 60K-3L-A
Interval (d) 0.005 kg 0.005 kg
Reproducibility 0.001 kg/0.002 kg 0.001 kg/0.002 kg
Linearity ±0.01 kg (2 d) ±0.01 kg (2 d)
Minimum piece weight when
counting the number of pieces
in laboratory conditions*
Minimum piece weight when
counting the number of pieces
in standard conditions**
Recommended
adjustment weight
(not delivered)
Possible adjustment points 10–100% Max 10–100% Max
2.5 g (0.5 d) 2.5 g (0.5 d)
25 g 25 g
60 kg (F2) 60 kg (F2)
Heating time 30 min
Permissible
ambient temperature
of the device
Input voltage of
the power supply
Battery 3.7 V / 4 Ah
Rechargeable
battery operation
dimensions [mm]
Scale plate,
stainless steel [mm]
Net weight [kg] 17 kg 19 kg
Interface RS-232
400 × 300 × 124 mm 500 × 400 × 120 mm
operating time 80 h (illumination off)
operating time 50 h (illumination on)
252 × 162 × 57 (width × depth × height)
0°C to +40°C
5 V, 1 A
100–240 VAC; 50/60 Hz
charging time ca. 5 h
TEFC_A-BA-e-2110 5
Weighing range (Max)
150 kg
150 kg
300 kg
Weight units
kg, g, lb, oz, PCS
Heating time
30 min
Air humidity
max. 80%, relative (non-condensing)
Input voltage
Display housing
KERN EFC 100K-3 EFC 100K-3L EFC 300K-2
Product number / type TEFC 100K-3-A TEFC 100K-3L-A TEFC 300K-2-A
Interval (d) 0.01 kg 0.01 kg 0.02 kg
Reproducibility 0.002 kg/0.005 kg 0.002 kg/0.005 kg 0.05 kg/0.1 kg
Linearity ±0.02 kg (2 d) ±0.02 kg (2 d) ±0.04 kg (2 d)
Minimum piece weight when
counting the number of pieces in laboratory conditions*
Minimum piece weight when
counting the number of pieces in standard conditions**
Recommended
adjustment weight
(not delivered)
Possible adjustment points 10–100% Max 10–100% Max 10–100% Max
5 g (0.5 d) 5 g (0.5 d) 10 g (0.5 d)
50 g 50 g 100 g
150 kg (F2) 150 kg (F2) 300 kg (M1)
Settling time (standard) 2 s
Permissible
ambient temperature
of the device
Input voltage of
the power supply
Battery 3.7 V / 4 Ah
Rechargeable
battery operation
dimensions [mm]
Scale plate,
stainless steel [mm]
Net weight [kg] 19 70 70
Interface RS-232
500 × 400 × 120 mm 600 × 500 × 140 mm 600 × 500 × 140 mm
operating time 80 h (illumination off)
operating time 50 h (illumination on)
252 × 162 × 57 (width × depth × height)
0°C to +40°C
5 V, 1 A
100–240 VAC; 50/60 Hz
charging time ca. 5 h
* Minimum piece weight when counting the number of pieces in laboratory conditions:
There are optimum ambient conditions to count pieces with high resolution
No diversification of the counted pieces’ weight
**Minimum piece weight when counting the number of pieces in standard conditions:
There are unsteady ambient conditions (wind gusts, vibrations)
There is diversification of the counted pieces’ weight
6 TEFC_A-BA-e-2110
Dimensions:
Models EFC 30K-3, EFC 60K-3:
Models EFC 30K-3L, EFC 60K-3L, EFC 100K-3:
Models EFC 100K-3L, EF C 300K-2:
TEFC_A-BA-e-2110 7
2 Declaration of Conformity
The valid Declaration of Conformity EC/UE is available at:
www.kern-sohn.com/ce
8 TEFC_A-BA-e-2110
3 Device overview
3.1 Parts
Item Name
1 Display housing
2 Display
3 Keyboard
4 Support
5 Scale plate
6 Leveling screw foot
7 RS-232 interface
8 Connection cable port
9 Guide rail
10 Limiter
11 Power supply socket
TEFC_A-BA-e-2110 9
3.2 Keyboard
Button Name Function in the operating
mode
Weight data transfer via
PRINT
button
the interface
Activating the animal
weighing mode (by pressing and holding the button)
Activating test weighing
Setting the indication con-
ditions and limit values for
test weighing (by pressing
and holding the button)
Activating the piece count-
ing mode
TOL button
MODE
button
Summing
M button
Displaying the “total” val-
ue
Menu function
Displaying the configuration
menu
(by pressing and holding the
button)
Leaving menu / return to the
weighing mode
Selecting the menu items
Setting confirmation
TARE
button
ZERO
button
ON/OFF
button
Taring Setting selection
Zeroing
Switching on/off
10 TEFC_A-BA-e-2110
3.2.1 Introducing the numerical value Button Name Function
Navigation button
Selection of the right-hand digit
Navigation button
Increasing the digit value (0–9)
Navigation button
Confirmation of the enter ed data
3.3 Symbol
The red LED above or beside the symbols will be lit once the following conditions are
met:
Symbol Description
Battery charging indicator
Discharged battery
HOLD “Animal weighing” appl i cati on
PCS “Counting the number of pieces” application
MODE Menu setting indicator
TOTAL “Summing” applicati on
NET Net weight value indicator
Tolerance symbols for check weighing
Stabilization indicator
Zero indicator
TEFC_A-BA-e-2110 11
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