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Digital Crane Scale Type LDN

User Manual

Art. Nr. 900030 13. Juni 2006

Index of Contents

Declaration of Conformity 1- 3

1. Safety Instructions 1- 4

2. Keypad 1- 5

3. Key Functions 1- 5

4. Display- Symbols 1- 6

5. Auto Power- Off 1- 7

6. Infrared- Transmitter 1- 8

7. Power Supply of Electronic Device 1- 10

8. Battery Charger / Charging 1- 10

8.1 General 1- 12

8.2 Safety Instructions 1- 12

8.3 Functioning of LED 1- 12

8.4 Putting into Operation 1- 12

8.5 Charge Procedure 1- 13

8.6 Special Instructions to Avoid Sparks 1- 13

8.7 Recommendations for Charging Sealed Lead Acid Batteries 1- 13

9. Accessories 1- 14

9.1 Additional Equipment for Data Transmission 1- 14

9.2 Data Protocols 1- 14

9.2.1 Extended Data Protocol 1- 15

9.2.2 EHP- Standard Data Protocol 1- 16

10. Technical Specifications 1- 17

10.1 Dimensions and Self- Weight 1- 17

10.2 Electrical Properties 1- 18

11. Spare Parts List 1- 19

12. Trouble Shooting 1- 20

12.1 Device Errors

13. Error Detections 1- 21

Declaration of Conformity

Manufacturer EHP-Wägetechnik GmbH Dieselstrasse 8

D-77815 Bühl (Baden), Germany

declares that the weighing instrument

Digital Crane Scale Type LDN

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). EN 45501 / 8.2 non-automatic and EC approved weighing instruments according to the

provisions of the directive 90/384/EEC. This product is marked with the CE sign.

Bühl, September 2005 Stefan Tisch / Technical Manager

This declaration of conformity is suitable to EN 45014.

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.

2. Keypad

Figure 2.1: Keypad / Function Keys

3. Key Functions

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) L A H (Software – Version)

- 1 0.0 4 (Version-No.Release)

- - - 0 1 (Scale No.) C 0 1 (Frequency Channel No.) H 0 1 (IR- Transmitter Channel No.)

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.

4. Display- Symbols

Figure 4.1: Display

6 7 1 9

1 -

2 -

3 -

4 -

5 -

Display Display consists of 5-digit, 7-segments-LED.

Dwell Control Indication

This sign is illuminated when load on crane scales’ hook is motionless AND a correct weighing result is displayed.

Symbol for Net Weight

This symbol is displayed if a tare value is set. The displayed weight is a net weight.

Symbol for Pre-Tare

This Symbol is illuminated with the given. The shown weight value is a net-weight.

Sign- Symbol

Every weight value is displayed combined with its (algebraic) sign.

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.

- Symbol, if a Tare value was

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