KERN & Sohn GmbH
Ziegelei 1
E-Mail: info@kern-sohn.com
Phone: +49-[0]7433- 9933-0
Internet: www.kern-sohn.com
Operating and Installation
Instructions Dis pl a y units
KERN VHP-T
Version 1.1
05/2016
GB
D-72336 Balingen
Fax: +49-[0]7433-9933-149
Importør:
Impex Produkter AS
Gamle Drammensvei 107
1363 Høvik
www.impex.no
info@impex.no
Tel.: 22 32 77 20
VHP-T-BA_IA-e-1611
KERN VHP-T
Display units
GB
Version 1.1 05/2016
Operating and installa t ion instructions
Contents
1 Technical data ................................................................................................ 4
2 Device overview VHP-T ................................................................................. 5
3 Keyboard overview ........................................................................................ 6
3.1 Overview of display .................................................................................................................... 7
4 Basic Information (Gen eral) .......................................................................... 7
4.1 Proper use .................................................................................................................................. 7
4.2 Improper Use .............................................................................................................................. 7
4.3 Warranty ..................................................................................................................................... 8
4.4 Monitoring of Test Resources .................................................................................................... 8
5 Basic Safety Precauti o ns .............................................................................. 8
5.1 Pay attention to the instructions in the Operation Manual.......................................................... 8
5.2 Personnel training ....................................................................................................................... 8
6 Transport and storage ................................................................................... 9
6.1 Testing upon acceptance ........................................................................................................... 9
6.2 Packaging / return transport ....................................................................................................... 9
7 Unpacking and placing ................................................................................ 10
7.1 Installation Site, Location of Use .............................................................................................. 10
7.2 Unpacking ................................................................................................................................. 11
7.3 Scope of delivery / serial accessories: ..................................................................................... 11
7.4 Placing ...................................................................................................................................... 11
7.5 Storage battery operation (optional) ......................................................................................... 11
7.6 Selection of platform quantity ................................................................................................... 12
7.7 Adjustment ................................................................................................................................ 12
7.8 How to carry out adjustments ................................................................................................... 14
8 Operation ...................................................................................................... 15
8.1 Start-up ..................................................................................................................................... 15
8.2 Switching Off ............................................................................................................................ 15
8.3 Zeroing ..................................................................................................................................... 15
8.4 Simple weighing ....................................................................................................................... 15
8.5 Weighing with tare .................................................................................................................... 16
8.6 Manual totalizing ....................................................................................................................... 17
8.7 Display background illum inatio n ............................................................................................... 17
8.8 Automatic switch-off function „AUTO OFF“ .............................................................................. 18
2 VHP-T-BA_IA-e-1611
9 Menu ............................................................................................................. 19
10 Servicing, maintenance, disposal .............................................................. 20
10.1 Cleaning ................................................................................................................................... 20
10.2 Servicing, maintenance ............................................................................................................ 20
10.3 Disposal .................................................................................................................................... 20
10.4 Error messages ........................................................................................................................ 20
11 Instant help ................................................................................................... 21
12 Configure display unit ................................................................................. 22
13 Declaration of Conformity ........................................................................... 23
VHP-T-BA_IA-e-1611 3
1 Technical data
KERN VHP-T
Display 5-digit
Resolution 3000
Divisions 1,2,5,10,20,50
Weighing Units Kg
Functions Totalization
Display LCD 10 mm digits with back lighting
DMS weighing cells
Range calibration We recommend ≥ 50 % max.
Data output RS232
Electric Supply
Installed recharg eabl e batt er y: DC 6V 10Ah
Housing With case: 510x340x220
Admissible
ambient temperature
Net weight 6 kg
Operating / charge time of
battery
RS 232 interface Serially
IP protection IP 54
Max. 6 items 700 Ω;
sensibility: 1±0.2mv/V.
Input voltage 100 V – 240 V
Without case:
350x280x170
0°C – 40°C
13 h / 12 h
4 VHP-T-BA_IA-e-1611
1
2
3
4
5
2 Device overview VHP-T
1. Printer
2. Display
3. Keyboard
4. Connections (platforms, load connection of battery)
5. Case
VHP-T-BA_IA-e-1611 5
3 Keyboard overview
Button Function
• Switch-on
• Switch-off
• Taring
• Display sum total
• Store weighing value
• Delete weighing values
• Printing
• Return key
• Setting the date
• Setting the time
• Entry of license plate
• Switch on and off background illumination
• Input of letters
• Input of numbers
• Zero setting key
6 VHP-T-BA_IA-e-1611
3.1 Overview of display
Display Significance
Battery very low
G Gross weight
NT Net weight
Kg Weighing unit
4 Basic Information (General)
4.1 Proper use
The display unit acquired by you is used in combination with a weighing plate and
serves to determine the weighing value of material to be weighed. It is intended to be
used as a “non-automatic weighing system”, 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.
4.2 Improper Use
Do not use display unit for dynamic weighing. 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“ in the display unit. (Example: Slowly
draining fluids from a container on the balance.)
Do not leave permanent load on the weighing pan. This may damage the measuring
system.
Impacts and overloading exceeding the stated maximum load (max) of the weighing
plate, minus a possibly existing tare load, must be strictly avoided. Both, the weighing
plate and the display unit may be damaged during this process.
Never operate display unit in explosive environment. The serial version is not
explosion protected.
Changes to the display unit's design are not permitted. This may lead to incorrect
weighing results, safety-related faul ts and des tr uct ion of the display unit.
The display unit may only be operated in accordance with the described default
settings. Other areas of use must be released by KERN in writing.
VHP-T-BA_IA-e-1611 7
4.3 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
4.4 Monitoring of Test Resources
In the framework of quality assurance the measuring-related properties of the display
unit 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 display units’ test substances and the test weights required for this. In
KERN’s accredited DKD calibration laboratory test weights and display units may be
calibrated (return to the national standard) fast and at moderate cost.
5 Basic Safety Precautions
5.1 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.
All language versions contain a non-binding translation.
The original German is binding.
5.2 Personnel training
The appliance may only be operated and maintained by trained personnel.
8 VHP-T-BA_IA-e-1611
6 T ransport and storage
6.1 Testing upon acceptance
When receiving the appliance, please check packaging immediately, and the
appliance itself when unpacking for possible visible damage.
6.2 Packaging / return transport
Keep all parts of the original packaging for a possibly
required return.
Only use original packaging for returning.
Prior to dispatch disconnect all cables and remove
loose/mobile parts.
Reattach possibly supplied transport securing devices.
Secure all parts such as the glass wind screen, the
weighing platform, power unit etc. against shifting and
damage.
VHP-T-BA_IA-e-1611 9
7 Unpacking and placing
7.1 Installation Site, Location of Use
The display units are designed in a way that reliable weighing results are achieved in
common conditions of use.
Precise and fast work is achieved by selecting the right place for your display unit
and your weighing plate.
On the installation site observe the following:
• Place the display unit and the weighing plate on a stable, even surface.
• Avoid extreme heat as well as temperature fluctuation caused by installing
next to a radiator or in the direct sunlight;
• Protect the display unit and the weighing plate against direct draft from open
windows or doors.
• Avoid jarring during weighing;
• Protect the display unit and the weighing plate against high humidity, vapours
and dust.
• Do not expose the display unit to extreme dampness for longer periods of
time. Non-permitted condensation (condensation of air humidity on the
appliance) may occur if a cold appliance is taken to a considerably warmer
environment. In this case, acclimatize the disconnected appliance for ca.
2 hours at room temperature.
• Avoid static charge of goods to be weighed or weighing container.
Major display deviations (incorrect weighing results) may be experienced should
electromagnetic fi elds ( e.g . due to mobi l e pho nes or radio equipment), static
electricity accumulations or instable power supply occur. Change location or remove
source of interference.
10 VHP-T-BA_IA-e-1611
• Display Unit
7.2 Unpacking
Carefully remove the display unit from packaging, remove plastic cover and place it
in the designated work area.
and place it in the designated work area.
7.3 Scope of delivery / serial accessories:
• Mains adapter for loading the battery
• RS 232 interface cable
• Operating manual
• 1 x paper roll for printer
7.4 Placing
Mount the display unit in a way that facilitates operation and where it is easy to see.
7.5 Storage battery operation (optional)
Before the first use, the battery should be charged by connecting it to the mains
power supply for at least 12 hours.
Charge the battery with the help of the supplied power pack.
The LED display at the mains adapter informs you during loading about the loading
status of the rechargeable battery.
red: Voltage has dropped below prescribed minimum.
green: Rechargeable battery completely reloaded
To conserve energy, enable the automatic switch-off function „AUTO OFF“, see
chap. 8.8.
VHP-T-BA_IA-e-1611 11
warm-up time.
7.6 Selection of platform quantity
1. Turn on device using the - - button
2. Use button to change into the window for date
input.
3. Now enter the following password: 878586 (the last two
ciphers can be ignored)
4. Use the C button to change between the individual
parameters.
5. Select the parameter (8): Mode
6. Confirm by pressing the button
7. Now enter the quantity of platforms. As per standard
there are 2. (up to 6 platforms available)
7.7 Adjustment
As the acceleration value due to gravity is not the same at every location on earth,
each display unit with connected weighing plate 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 weighing system has not already been
adjusted to the location in the factory). This adjustment process must be carried out
for the first commissioning, after each change of location as well as in case of
fluctuating environment temperature. To receive accurate measuring values it is also
recommended to adjust the display unit periodically in weighing operation.
• Prepare the required adjustment weight. The weight to be used depends
on the capacity of the scale. Carry out adjustment as near as possible to
the scale’s maximum weight. Info about test weights can be found on
the Internet at: http://www.kern-sohn.com.
• Observe stable environmental conditions. Stabilisation requires a certain
12 VHP-T-BA_IA-e-1611
Call up menu:
1. Turn on device using the - - button
2. Use button to change into the window for date
input.
3. Now enter the following password: 878586 (the last two
ciphers can be ignored)
4. Use the C button to change between the individual
parameters.
5. Select the parameter (5): Select Calibration
6. Confirm by pressing the button
VHP-T-BA_IA-e-1611 13
Zero point adjustment platform 1
Zero point adjustment platform 2
Adjustment platform 1
Adjustment platform 2
7.8 How to carry out adjustments
Important: Always adjust both weighing platforms in a parallel manner. Not one by
one. Always place the adjustment weight evenly on both platforms. In menu define
the respective platform as a half.
Example: Place 15 tons of adjustment weight on both platforms. In the menu
adjust each platform with the following input:
Platform 1: 7500kg
Platform 2: 7500kg
The following display appears after acknowledgement of parameter (5) Calibration:
To select the platforms, press the C button
Use the button to select the respective platform.
Carry out zero point adjustment (CAL ZERO) at platform 1
(SP1) and platform 2 (SP2). During cero point adjustment
the weighing plate must not be charged.
Always place the adjustment weight evenly on both
platforms.
Carry out adjustment at platform 1 (SP1) and platform 2
(SP2). (please note the example above: 50% of the total
load per platform must be defined.)
14 VHP-T-BA_IA-e-1611
Overloading exceeding the stated maximum load (max) of the device, minus a
8 Operation
8.1 Start-up
Press . As soon as the weight display appears, the instrument will be ready
to weigh.
8.2 Switching Off
Press , the display will disappear.
8.3 Zeroing
Resetting to zero corrects the influence of light soiling on the weighing plate. If
required, the device may be reset to zero at any time.
To unload the weighing system
Press , the zero display appears.
8.4 Simple weighing
Place/drive-on weighing goods (at walking speed)
Read weighing result.
Overload warning
possibly existing tare load, must be strictly avoided. This could damage the
instrument.
Exceeding the maximum load is indicated by the display „----“.
Unload weighing system or reduce preload.
VHP-T-BA_IA-e-1611 15
8.5 Weighing with tare
Deposit weighing vessel. After successful standstill control press the
button.
The zero display appears.
The weight of the container is now internally saved.
Weigh the material, the net weight will be indicated.
The weight of the weighing container will be displayed as a minus number after
removing the weighing container.
The tare procedure can be repeated as many times as necessary, for example
with initial weighing of several components for a mix (add-on weighing). The limit
is reached when the taring range reaches its capacity limit.
To delete the tare value, remove load from weighing plate and press .
16 VHP-T-BA_IA-e-1611
Axle load - report
30/11/2014
16:03:34
SN. 2
HGV license plate:
BLM
Article: 01
--------------------------
Wheel 1:
70 kg
Wheel 2:
40 kg
--------------------------
Axle 1:
110 kg
--------------------------
G =
110 kg
T =
0 kg
NT=
110 kg
User:
8.6 Manual totalizing
After pressing the button, the separate weighing results of the platforms are
added up to a total result (axle) and printed out.
See printout example below:
8.7 Display background illumination
The background illumination can be turned on and off by using button.
VHP-T-BA_IA-e-1611 17
8.8 Automatic switch-off function „AUTO OFF“
1. Turn on device using the - - button
2. Use button to change into the window for date
input.
3. Now enter the following password: 878586 (the last two
ciphers can be ignored)
4. Use the C button to change between the individual
parameters.
5. Select the parameter (9): Select “Auto-Off time“.
6. Confirm by pressing the button
7. Now a time of 1-99 minutes can be defined.
8. Confirm by pressing the button
18 VHP-T-BA_IA-e-1611
9 Menu
Navigation in the menu:
Access to menu
1. Turn on device using the - - button
2. Use button to change into the window for date
input.
3. Now enter the following password: 878586 (the last two
ciphers can be ignored)
4. Use the C button to change between the individual
parameters.
5. Using button select the corresponding
parameter.
Menu overview
Menu Function
(1) Capacity
(2) Readability
(3) Decimal point
(4)
(5) Calibration
(6)
(7) Language
(8) Mode
• Setting weighing scale capacity
• Setting weighing scale readability.
• Setting decimal point (decimal place).
• (please do not modify standard setting on „5“)
• Adjustment of balance.
• Not documented
• Selection of language German and English
• Selection of quantity of platforms (up to 6 platforms
possible)
VHP-T-BA_IA-e-1611 19
10 Servicing, maintenance, di s pos al
10.1 Cleaning
• Before cleaning, disconnect the appliance from the operating voltage.
• Do not use aggressive detergents (solvents or similar).
10.2 Servicing, maintenance
The appliance may only be opened by trained service technicians who are authorized
by KERN.
Before opening, disconnect from power supply.
10.3 Disposal
Disposal of packaging and appliance must be carried out by operator according to
valid national or regional law of the location where the appliance is used.
10.4 Error messages
Error message Description Possible causes
+/-RRR(EEE)
Should other error messages occur, switch balance off and then on again. If the error
message remains inform manufacturer.
No defined signal
Overload display
Underload display
• Weighing plat for m not connected.
• Too much weight on the weighing
platform.
• Insufficient weight on the weighing
platform.
20 VHP-T-BA_IA-e-1611
The displayed weight does
not glow.
• Mains power supply interrupted (mains cable
defective).
• Power supply interrupted.
• (Rechargeable) batteries are inserted incorrectly or
empty
• No (rechargeable) batteries inserted.
The displayed weight is
• Table/floor vibrations
• Weighing pan has contact with other objects.
possible)
The weighing result is
obviously incorrect
• Adjustment is no longer correct.
• Great fluctuations in temperature.
possible)
11 Instant help
In case of an error in the program process, briefly turn off the display unit and
disconnect from power supply. The weighing process must then be restarted from the
beginning.
Help:
Fault Possible cause
• The display unit is not switched on.
permanently changing
Should other error messages occur, switch display unit off and then on again. If the
error message remains inform manufacturer.
• Draught/air movement
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
• The display of the balance is not at zero
• Warm-up time was ignored.
• Electromagnetic fields / static charging (choose
different location/switch off interfering device if
VHP-T-BA_IA-e-1611 21
Enter capacity with the numeric keypad and subsequently
12 Configure display unit
1. Turn on device using the - - button
2. Use button to change into the window for date
input.
3. Now enter the following password: 878586 (the last two
ciphers in the display can be ignored)
4. Use the C button to change between the individual
parameters.
5. Select the parameter (1) capacity.
6. Confirm by pressing the button
confirm with button.
7. Use the button to return to the parameter list
8. Select the parameter (2) readability.
Confirm by pressing the button
Enter readability via the numeric keypad and
subsequently confir m with button. (Possible
values: 1,2,5,10,20,50)
9. Use the button to return to the parameter list
22 VHP-T-BA_IA-e-1611
Enter the corresponding platform quantity via the numeric
10. Select the parameter (3) decimal point.
Confirm by pressing the button.
Enter the decimal point (decimal places) via the numeric
keyboard. Possible values: 0-3)
11. Confirm by pressing the button
12. Use the button to return to the parameter list
13. Select the parameter (8) Mode.
keyboard. (up to 6 platforms available)
14. Use the button to return to the parameter list
15. Select the parameter (5) Calibration.
16. Adjusting the balance (see item 6.8)
13 Declaration of Conformity
To view the current EC/EU Declaration of Conformity go to:
www.kern-sohn.com/ce
VHP-T-BA_IA-e-1611 23
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