EHP KGW 1 User manual

No. 900141 May 2006
Digital Crane Scale Type KGW
User Manual

KGW
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Contents
Declaration of conformity 3
1. Safety Instructions 4
2. Display and Keypad 5
3. Function Keys 5
4. Display Symbols 6
5. Automatic Power-off 7
6. IR-remote control 7
7. Power supply of electronic device 7
8. Charger/ Charging 7
9. Accessories 7
10. Technical Data 8
11. Parts-Catalog 8
12. Trouble Shooting 10
13. Error Detection 10

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Declaration of conformity
Manufacturer EHP-Wägetechnik GmbH
Dieselstrasse 8
D-77815 Bühl (Baden), Germany
declares that the weighing instrument
Digital Crane Scale Type KGW
is conform with following harmonized standards:
EN 45501, EN 50081 part1 according to the provisions of the directive 89/336/EEC
(electromagnetic compatibility, EMC).
EN 60950 according to the provisions of the directive 73/23/EEC (low voltage directive).
This product is marked with the CE sign.
Bühl, May 2006 Stefan Tisch / Technical Manager
This declaration of conformity is suitable to EN 45014.

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1. Safety Instructions
Please read this instruction manual carefully before you set digital crane scale into operation
to prevent injuries and protect your digital crane scale against damages.
More satefy instructions and warnings could be found directly in the corresponding chapter.
...before setting into operation
•Use the EC type -approved version of this digital crane scale only in weather protected (roof
protected) environment, so do not expose it directly sun, rain and snow etc.
•Do not operate this digital crane scale outside the nominal temperature range, e.g. in frost
risk environment (less than -10°C) or high heated areas (over +40°C), in order to perform
best accuracy.
•Check if your crane scale is placed absolutely correct and safe into corresponding hook.
•Respect ACCIDENT PREVENTION REGULATIONS.
•Keep this instruction manual.
...in operation
•Pay attention that scale and load are placed correctly.
•Do not use any solvents for cleaning of the crane scale to prevent defects and damages.
...in case of defects
•Repair work is only allowed to be done by qualified personnel.
•See also chapter TROUBLE SHOOTING and ERROR CODES.
IMPORTANT:
Please be careful with seals and marks on EC type-approved crane scales. If these are
damaged, please inform your local office of weights and measures.
Your digital crane scale works by the principle of a high precision strain gauge sensor system
with subsequent signal processing.
The user/operator is responsible for the safety of this weighing instrument, i.e. perform a visual
control of all tension stressed parts (e.g. ring, hook and shackle) at regular intervals.
In case of visual abrasion of these mounting parts, EHP can offer you a complete technical
check according to the German accident prevention regulations.

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2. Display and Keypad
3. Description of Function keys
Function Key for Scales Power-On
•Switches on the scale.
•Activates the automatic display segment check.
•After testing without error display is automatically set to “0“.
Please always switch on scale minimum 5 minutes (warm-up time) before
start of weighing. If preload exceeds 20% of crane scales nominal capacity
(initial zero-setting range) then only +/- sign is displayed. Normal operating
status /weighing mode will be reached again by reducing preload under the
20%-limit and power off-/on-switching.
Function Key for Scales Power-Off
•Switches off the scale.
Power off-/on-switching will reset all crane scale errors (reset function).
Function Key for Test- Routine
Activates during approx. 5 seconds the automatic display segment check
and further particulars are displayed.
For approx. 5 seconds display is flashing:
8 8 8 8 8 (Segment Check)
LAH 11.03 (Software version)
- - - 0 1 (Scale No.)
C0 1 (Frequency Channel No.)
H0 1 (IR- Transmitter Channel No.)
Keypad

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Function Key to store and to delete Tare Values (TARE- Button)
•(Subtractive) TARE function is activated.
•Current weight value is stored into tare memory.
•Display shows ″0″.
•Net -LED is illuminated.
•Exit by repressing TARE button and GROSS weight is displayed again.
Function Key for Zero-Setting (Zero- Button)
•Sets display to ″0″(semi-automatic zero-setting device).
•Zero-setting range: -1…+3% of nominal capacity.
Zero-setting outside semi-automatic zero-setting range and also in active
tare weighing mode is not possible. Outside of scales 1/4d-range (a quarter
of verification interval) only +/- sign is illuminated.

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4. Description of display-symbols
1 - Display
Display consists of 5-digit, 7-segments-LED
2 - Dwell Control Indication
This sign is illuminated when load on crane scales’ hook is motionless
AND a correct weighing result is displayed.
3 - Symbol for Net Weight
This symbol is displayed if a tare value is set. The displayed weight is a
net weight.
4 -
Sign- Symbol
Every weight value is displayed combined with its (algebraic) sign.
Æ Overload Indication:
If crane scale is loaded with more than 2e (2x scales verification
interval) above the nominal capacity range (see model type
indication plate), so display will switch ‘dark’ and only sign-symbol is
displayed.
Normal weighing status is reached again when crane scale is
unloaded (inside permissible weighing range). Example: Capacity
10t: 2x verification interval 5kg = 10kg, i.e. display is switched ‚dark’
at a weight of 10010kg. In respect of SATEFY AND HEALTH please
do not overload crane scale.
5 - Symbol for Decimal Point
Is displayed to indicate position of decimal point.
6 - Symbol for Battery Control
Scales’ accumulator is to charge below a battery voltage of 5.4 volts,
displayed by a flashing symbol (empty accumulator). Now you
2
46 53 197 8

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can still work with your instrument for the next 30 minutes (e.g. if it is
not possible to pause your weighing process). By then the battery
needs to be charged. At a battery voltage of 5.3 volts the scale is
switched off automatically to avoid a total discharge and consequently
accumulator damage.
7 - Symbol for pre-tare-function
This symbol comes together with the - symbol, when a tare-value
was preset by the remote control. The shown weight is a Net- weight
8 -
Symbol for Multirange-scale
Shows if the scale is in range 1 or 2 (only when the scale is adjusted as
multi-range system)
9 - Receiver (diode) of IR- Transmitter
5. Auto Power-Off
This instrument is equipped with an automatic power-off setting device, which is set default =
deactivated. In scales setup mode you can choose a power-off setting time between 1…99
minutes. To activate this device or changing of setting time, please contact after sales service.

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6. IR-remote control
By means of IR-transmitter you can activate further additional functions beside scale keypad
functions.
Change transmitters’ batteries (4pcs. a 1.5V Type AAA, Micro, LR03, AM4, MN2400) when
operating distance is getting insufficient (less than approx. 20m).
1 - Press button to input and delete tare values (TARE- Button)
This key has same function as on scales’ keypad.
2 - Press button to activate the PRINT- Function (PRINT- Button)
Through this scales display value (plus additional data) will be transmitted
via UHF radio to receiver units (see accessories), e.g. a single print out will
be activated on the integrated printer of TELEDATA receiver unit.
3 - Press button for zero-setting (Zero- Button)
This key has same function as on scales’ keypad.
4 - Press button to activate the ADD- Function (Add- Button)
Press this button if several different single weights within one charge should
be collected resp. added. Scales display value (plus additional data) will be
transmitted via radio to receiver units, e.g. a single weight registration within
a total print out will be activated on TELEDATAs integrated printer.
1
3
5
7
9
13
12
2
4
6
8
10
11
14
Picture 3.1: IR-remote control

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5 - Non-active, only possible in combination with dual-range scales.
6 - Press button to activate Print Total- Function
Through this scales display value (plus additional data) will transmitted be via UHF
radio to receiver units (see accessories), e.g. a total print out (total of all single weight
values will be activated on the integrated printer of TELEDATA receiver unit (additon
of all single weight registrations transmitted by ADD- Function).
7 - Press button to activate Test Routine (Test- Button)
This key has same function as on scales’ keypad.
8 - Press button for scales’ (remote) power- off
Press this button to switch off the scale by remote control. A re-power-on is possible
by pressing any button of IR- transmitter or by pressing function key on scales’
keypad. This function could be set deactivated by factory or in scale setup.
9 - Non-active
10 - Non-active
11 - Enter- Button
This press button transfers a code (max. 5 digits) which is entered by numeric keys
together with actual weight value via radio / RS232 (see accessories) to receiver
devices.
12 - Shift- Button
Press this button to activate numeric keys. Now you can input any numbers (max. 5
digit code) between 0…9 (blue numbers).
13- Symbol for active numeric keys
If this LED is illuminated then you can select the (blue) numbers of IR- transmitter
numeric block (see also Shift- Button).
14- Transmission- Symbol
Transmitting remote control is displayed by flashing LED.
Note:
If functions: Print, Add and Total are activated by IR-transmitter, their characters are also
displayed on scale. Activating of function keys is now locked during the next approx. 5 seconds in
order to prevent transmitting several commands by mistake.

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6.1 Adjusting the limit values / honk / relay control (optional accessories)
limit values (will be stored non volatilely)
Remote control Display comment
(ENTER) AL Menu for entering the limt values, with next back to weighing
mode
(button 1) L1 Limit value 1
(ENTER) 00000 Entering the limit value 1
example
00500 Example for value 1 (= 500kg)
(after 5 seconds without any input, display jumps back to menu „AL“!)
(ENTER) 00500 Storing the input (Ædisplay is flashing!)
AL display goes back to „limit-menu“. Input for the values 2, 3 and 4
with the buttons , und or go back with to the
weighing mode.
Duration of honk / duration of relay switching (will be stored non volatile)
(ENTER) AL Menu for entering the limt values, with next back to
weighing mode
(button 5) Hrn 4 Honk/relay sounds/switches when the limit is reached for 4
seconds (default)
example:
(button 2)
example:
Hrn 2 Changes the duration to 2 seconds
(button no. = duration of sound/switching in seconds 1…9 possible)
important for relay control : Hrn 0 is switching the relay as long as the limit is
reached
(ENTER) Hrn 2 input will be stored (Ædisplay is flashing!)
AL display goes back to limit menu for entering the next instruction
or to go back with to weighing mode
Autotare at limit (will be stored volatile!)
(ENTER) AL Menu for entering the limt values, with next back to
weighing mode
(button tAr 0 Autotareis is not active
(button 1 to activate the function button 0 to de-activate
(button tAr 1 Autotare when reaching the limit value is activated
(ENTER) tAr 1 Storing the input (Ædisplay is flashing)
AL display goes back to limit menu for entering the next instruction
or to go back with to weighing mode

7. Power Supply of Electronic Device
Electronic device is protected by a fast-acting fuse 1A (5 x 20mm DIN 41571).
Crane scale type LDN is powered by a special battery 6 volts.
Picture 7.1: Accumulator with open battery housing
WARNING:
Avoid setting in false connection or inverse-polarity or connecting of another power supply as
accumulators supplied by manufacturer.
Colour code of supply leads: +/ plus = red, -/ minus = black
8. Charger / Charging
It is only allowed to charge the accumulator by original provided EHP- charger, either by using
scales’ charging plug (picture 8.3) or directly (picture 8.1). The charger is equipped with an
electronic charging current limiting so that it is not possible to overcharge the accumulator.
Charging current control is indicated on chargers’ front panel
(All connectors are protected against inverse-polarity).

Picture 8.1: Charger and Battery charging
Picture 8.2: Scales’ Plug Socket (Bottom side of scales’ battery housing)
Picture 8.3: Scales’ plug socket with charging plug
Charger
Charging plug to
connect with
scales’ charging
socket
Charging plug to
connect battery
directly
12V-Battery
Plug socket
Fuse socket
(Fuse 1A, fast-acting,
5x20mm)
Charging plug

8.1 General
The charger is designed in primary switch mode technology. This provides a constant DC voltage
which guarantees a long lifetime of maintenance free sealed lead acid batteries. A holding device
for wall mounting will be found on the back side of the charger.
8.2 Safety Instructions
The charger is especially designed to charge maintenance free lead acid batteries. The charger
housing can only be opened and maintained by authorized personnel. Unqualified opening may
cause damages to charger and will cancel guarantee. Operation with an opened housing is strictly
prohibited. Only a qualified technician is allowed to replace the fuse. The charger can only be
operated if sufficient cooling is assured. The charger can only be operated in closed rooms and
must be protected against moisture.
8.3 Function of the LED
8.4 Set into operation
Compare the rated voltage of identification plate of charger with the rated voltage of the battery.
The charger will be connected with the plug socket of crane scale to charge the battery /the scale.
To charge the battery outside the scale, an adapting cable is needed (optional) see picture 8.1
8.5 Charge procedure
When the current reaches a value of approx. 400 - 500mA, the functions-LED flashes. The battery
is now charged with a minimum of 90% and again ready for use. For a better life span please
charge the battery further if it is possible.
8.6 Special Instructions to Avoid Sparks:
1. Connect mains supply without battery connection.
2. Disconnect mains after a short period of time.
3. Connect battery with correct polarity.
4. Connect mains supply.
Amperemeter /
charging current
function LED
power switch
(lit up)
Power connector
Für charging

8.7 Recommendations for charging sealed lead acid batteries
Charge/ Discharge
;Before delivery of your crane scale type LK/LKe 6V-battery was already charged for 12 hours
and is therefore instantly ready to operate.
;Charge after each discharge even after partly discharge.
;Never store a discharged battery.
;A completly discharged battery must be charged for min. 16 hours.
;If charging time is below 16 hours for more than 3 days then charge one time for 24 hours to
equalize the poor charging.
;Ambient charging temperature should range between 10°C and 30°C.
Before longer storage periods (2 possibilities)
A: Disconnect battery from charger and store it fully charged.
! CAUTION: Charge battery for min. 36 hours before storage period of 3 months or more!
B: You can leave battery on charge for an unlimited time (trickle charge). It is recommended to
store battery at a cool place.
High ambient temperatures
Charging at temperatures above 30°C is not recommended. Your charger is adjusted with a
charging voltage valid for 20°C.
Low ambient temperatures
Charging below 10°C is not recommended. At low temperatures the available capacity is reduced.
Deep discharge
Try to avoid deep discharges. If a deep discharge occured charge battery as soon as possible for
24 hours.
Maintenance
Wipe battery surface from time to time with a dry and clean cloth.

9. Accessories
9.1 Additional Equipment for Data Transmission
Crane scale type LK/LKe can be equipped with a radio transmitter for data transmission on
receiver units (Teledata, Telebox Plus, Greybox und Large Display) or connection to computer
directly:
Lar
g
e dis
p
la
y
Teledata
Telebox Plus
Gre
y
box
Netscal

10. Technical Data
10.1 Dimensions and Weight
Dimensions in Millimeter
Typ
KGW
Weighing
range
in kg
-dead
weight
in kg A B(*) C D E F G
number
step
in kg
KGW 1 0- 1000 69 545 107 (150) 143 317 32 54 45 0,5
KGW 2 0- 2000 69 545 107 (150) 143 317 32 54 45 1
KGW 5 0- 5000 69 545 107 (150) 143 317 32 54 45 2
KGW 10 0- 10000 82 570 150 (300) 143 317 46 65 69 5
KGW 20 0- 20000 240 872 232 (500) 143 472 52 83 / 150 84 / 93 10
KGW 30 0- 30000 240 872 232 (500) 143 472 52 83 / 150 84 / 93 10
KGW 50 0- 50000 580 1310 580 234 480 52 100 132 20
KGW 100 0- 100000 1550 1820 815 310 860 85 140 190 50

10.2 Electrical characteristics
Supply voltage of the electronic 12V DC maintenance free accumulator 13Ah /
20Ah
Min. voltage of the accumulators 10,8V DC
Supply voltage of the IR-remote control 4pcs. à 1,5V Type AAA, Micro, LR03, AM4,
MN2400
Range of the IR-remote control approx. 35m with an angle < 20°
Runtime Approx. 12Stunden
Supply voltage of the charger 230V AC, 50/60Hz
Reloading time of the accumulator Less than 12 hours

11. Parts catalog
In case of orders of spare parts please contact directly the nearest service station or the
manufacturer.
Parts number Description
50182 Glas for KGW 1- 10
73326 Glas for KGW 15- 100
61534 IR – remote control
61523 IR – remote control for scales with radio transmission
79849 Maintenance free accumulator 12V / 13Ah for KGW 1- 10
59860 Maintenance free accumulator 12V / 20Ah for KGW 15- 100
59554 Current supply cable (with round plugs)
78353 Complete digital display / electronic
55385 Fuse holder
52525 Fuse 1A fast, 5 x 20mm DIN 41571
55198 Charging plug 2-pin
78188 Keypad
79827 Keypad inscription
59609 Charger 12V / 4A
59114 Heat protection for KGW 1- 10
59136 Heat protection for KGW 15- 30
Accuracy ±0,03% FS
Nominal temperature range -10°C...+40°C
Temperature range (without heat protection) -10°C...+50°C
EEC protection class IP 54

12. Trouble Shooting
Repair work on digital crane scale LK/LKe is only allowed by qualified
technical personnel.
If the advice does not bring any success, please contact the after sales service.
12.1 Device Errors
Error Cause Solution
Dark display No current Please check if scale is
switched on.
Please check if battery is
charged.
Please control the fuse.
After switching on the display
shows for a short time the ’+’ Sign
or
’-’ Sign and then the crane scale
switches off.
The crane scale is out of the
zero range while switching
on.
Switch the crane scale off and
remove the weight from the
crane scale. Then switch the
crane scale on again.
The display flashes The crane scale is
overloaded Reduce the weight on the crane scale. The permissible
maximum weight is indicated on
the identification plate.
High overload on the crane
scale Reduce immediately the weight on the crane scale. The
permissible maximum weight is
indicated on the identification
plate.
Display shows only the ’+’ Sign
Electronic- Error Switch the crane scale off,
remove the weight, switch the
crane scale on again.
Can not switch off the crane scale Electronic- Error Remove for a short time the
fuse and switch the crane scale
on again after you have
replaced the fuse.
Crane scale is out of the
permissible zero range Reduce the weight until you are in the permissible zero range.
Can not set zero on the crane
scale
Crane scale is in TARE-
Mode, Net- LED is
illuminated.
Press the TARE-Button, to
leave the TARE-Mode of the
crane scale.