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TEFC_A-BA-e-2110 

19 

 

 

Prepare the required adjustment weight, see chapter 1.  
Whenever possible, adjust using the adjustment weight with the weight simi-
lar to the maximum load of the scale (the adjustment weight is recommend-
ed, see chapter 1). The adjustment may also be carried out using weights 
with other nominal values or tolerance classes, but this is not optimal from 
the measurement technique perspective. The adjustment weight precision 
must correspond to the interval [

d

] of the scale, though preferably it should be 

a bit higher. For information concerning reference weights, see online at: 

http://www.kern-sohn.com

 

 

Ensure stable environmental conditions. The heating time is required for the 
stabilization (see chapter 1). 

  Ensure there are no objects on the scale plate. 

What to do: 

 

Switch the scale off. 

 

With 

TOL

 pressed, switch the scale on using 

ON/OFF

. During the autotest, press 

TOL

 and hold it for 10 s until <

> is displayed. 

 

If required, use 

TARE

 to change the interval (

d

), 

you can choose from 1 

d

, 2 

d

, 5 

d

, 10 

d

, 20 

d

, 50 

d

 

Confirm by pressing 

TOL

, <

> will be displayed. 

 

If required, use 

TARE

 to change the number of decimal places, 

you can choose from 0, 0.0, 0.00, 0.000, 0.0000. 

 

Confirm by pressing 

TOL

, <

> will be displayed. 

 

Press 

TARE

, the maximum load (

Max

) will be displayed. Red LED above PCS 

will be lit. 
If required, change the value using 

TARE

 and 

ZERO

 (Entering a value in the 

numerical form, see chapter 3.2.1). 

 

Confirm by pressing 

TOL

, <

> will be displayed. 

 

Ensure there are no objects on the scale plate. 

 

Once the  stability check is completed successfully (red LED above 

  is lit), 

confirm by pressing 

TOL

, <

> is displayed. 

 

Place the adjustment weight and confirm by pressing 

TARE

 

The weight of the last used adjustment weight will be displayed. If required, 
change the value using 

TARE

 and 

ZERO

 (Entering a value in the numerical form, 

see chapter 3.2.1). 

 

Confirm by pressing 

TOL

 

Wait until <

> is displayed. 

After the successful adjustment, the scale will switch to the weighing mode again 
automatically. 
If there is any adjustment error or if an incorrect adjustment weight is used, the 
error message is displayed. Repeat the adjustment process. 

 

Remove the adjustment weight. 

 

 

Summary of Contents for EFC 30K-3

Page 1: ...bH www kern sohn com Ziegelei 1 72336 Balingen Frommern Germany 0049 0 7433 9933 0 0049 0 7433 9933 149 info kern sohn com User manual Platform scales KERN EFC TEFC A type Version 1 0 2021 06 GB TEFC_...

Page 2: ...upervision 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 reception 13 6...

Page 3: ...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...

Page 4: ...ded adjustment weight not delivered 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 re...

Page 5: ...nt weight not delivered 60 kg F2 60 kg F2 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 c...

Page 6: ...ing time 30 min Air humidity max 80 relative non condensing Permissible ambient temperature 0 C to 40 C Input voltage of the device 5 V 1 A Input voltage of the power supply 100 240 VAC 50 60 Hz Batte...

Page 7: ...TEFC_A BA e 2110 7 Dimensions Models EFC 30K 3 EFC 60K 3 Models EFC 30K 3L EFC 60K 3L EFC 100K 3 Models EFC 100K 3L EFC 300K 2...

Page 8: ...8 TEFC_A BA e 2110 2 Declaration of Conformity The valid Declaration of Conformity EC UE is available at www kern sohn com ce...

Page 9: ...9 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 Powe...

Page 10: ...hing Setting the indication con ditions and limit values for test weighing by pressing and holding the button MODE button Activating the piece count ing mode Displaying the configuration menu by press...

Page 11: ...entered 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...

Page 12: ...r than the stipulated maximum load Max deducting the tare from the existing load This could damage the scale Never operate the scale in explosive atmospheres The standard version is not explo sion pro...

Page 13: ...s included in the user manual Before you set and start the device read this user manual thoroughly even if you are familiar with KERN scales All language versions contain non binding translation Only...

Page 14: ...apours and dust Do not expose it to long term heavy moisture Any forbidden condensation of the air moisture on the device may occur when a cold device is placed in a much hotter environment In such ci...

Page 15: ...Install the support and display as shown in the figure 1 The connection cable led through the support Do not crush or damage the cable 2 The holder fixed with three bolts 3 Bolt for display fixing 4...

Page 16: ...The air bubble in the leveler must be pre sent in the marked area Check leveling at regular intervals 7 4 Pin use for the connection cable Pin 1 signal Pin 2 signal Pin 3 Screen Pin 4 Exc Pin 5 Exc T...

Page 17: ...tions may result in its fire or explosion It may result in serious injuries or material losses Protect the battery from fire and heat Do not allow the battery to have any contact with liquids chemical...

Page 18: ...g per fectly compatible with it 7 8 First start To get accurate weighing results using electronic scales ensure the scales achieves the appropriate operating temperature see Heating time chapter 1 Dur...

Page 19: ...you can choose from 1 d 2 d 5 d 10 d 20 d 50 d Confirm by pressing TOL will be displayed If required use TARE to change the number of decimal places you can choose from 0 0 0 0 00 0 000 0 0000 Confirm...

Page 20: ...rom the scale Press ZERO the zero indications and ZERO symbol will be displayed 8 3 Ordinary weighing Check the zero indication whenever required zero by pressing the ZERO button Place the weighed mat...

Page 21: ...terial Wait until the stabilization indicator is displayed Read out the net weight After the load is removed from the scale the tare weight is displayed as a negative value To delete the saved tare va...

Page 22: ...e minimum weight of the counted pieces see the Technical specifi cation table 1 Calling the piece counting mode Press MODE in the weighing mode red LED above PCS will be lit will be displayed 2 Settin...

Page 23: ...n enables to determine the upper and lower limit value and consequently to ensure the weight of the weighed material belongs to the range between the determined tolerance limits Exceeding the limit va...

Page 24: ...the upper limit value the sound is heard and the LED at the symbol is red 2 If the weighed portion is below the upper limit value the sound is not heard and the LED at the symbol is yellow 1 If the w...

Page 25: ...the tolerance symbols audible signal check if the weighed material belongs to the preset tolerance range Weighed material below the preset tolerance Weighed material in the preset tolerance range Wei...

Page 26: ...n op tions see chapter 8 7 1 step 2 Confirm the selection by pressing M will be displayed for a while The window for value entry in the numerical form will be displayed where you can enter the lower l...

Page 27: ...ance symbols audible signal check if the weighed material belongs to the preset tolerance range Weighed material below the preset tolerance Weighed material in the preset tolerance range Weighed mater...

Page 28: ...added only when the indication zero Place the second weighed material Wait until the stabilization indicator is dis played and then press M The weight value will be added to the total memory The tota...

Page 29: ...s the red LED at HOLD will be lit will be displayed for a while Starting the measurement cycle Place the weighed material If the indication is stable for a couple of seconds the weight value on the di...

Page 30: ...dis played Changing settings The TARE button enables to switch between the available settings Setting confirmation Press M the consecutive menu item will be displayed Leaving the menu Press MODE the...

Page 31: ...the response time the higher the sensitivity Zero 1 Maintaining zero ZEro0 ZEro9 Automatic zero maintenance possible to choose from 0 d to 9 d If the amount of the weighed material is reduced or incr...

Page 32: ...by KERN is used Communication parameters e g transmission speed of the scale and the printer must be compliant 10 1 Technical specification Port 9 Pin pin mini D Sub plug Pin 2 RXD Input Pin 3 TXD Ou...

Page 33: ...h Any loose specimen powder remains can be removed carefully with a brush or a handheld vacuum cleaner Remove any scattered weighed material immediately 11 2 Maintenance and service The device can be...

Page 34: ...ltage failure The weight indication keeps fluctuating Draft air movements Table air vibrations The scale plate is in contact with foreign bodies Electromagnetic fields static discharge select another...

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