BENNING LD 60 Appliance Tester User Manual

Translation of the German original version
BENNING LD 60
5244 / 12/2022
Operating manual

LD 60 Appliance Tester

Legal notice
Notes concerning the documentation
Ensure that the applicable documentation is used for this product. For safe handling, knowledge that is provided in these instructions is required.
The product may only be handled while following this documentation, particularly the safety instructions and warnings it contains. The personnel must be qualified for the respective task and have the capability to recognise risks and prevent possible dangers.
Manufacturer and holder of rights

• BENNING Elektrotechnik und Elektronik GmbH & Co. KG
• Münsterstraße 135 – 137
• 46397 Bocholt
• Germany
• Phone: +49 2871 / 93‑0
• E‑mail: [email protected]
• Internet: www.benning.de
• Commercial register Coesfeld HRA no. 4661

Copyright
© 2022, BENNING Elektrotechnik und Elektronik GmbH & Co. KG
All rights reserved.
This document – particularly all of the contents, texts, photographs and graphics that it contains – are protected by copyright.
No part of this documentation or the associated contents may be reproduced or edited, copied or distributed using electronic media in any form (printed, photocopied or  using any other method) without express written permission.
Disclaimer
The contents of the documentation has been checked to ensure that it corresponds to the hardware and software described. Nevertheless, deviations cannot be ruled out, so Benning cannot guarantee complete correspondence. The contents of this documentation are checked at regular intervals, and any corrections that are needed are contained in the versions that follow.
General non-discrimination
Benning is aware of the importance of language with regard to the gender equality and endeavors to take this into account at all times. To improve readability, we have refrained from consistently using differentiating formulations.

Introduction

The laser distance meter BENNING LD 60 described here (in the following only referred to as “device”) enables you to perform the following measurements and calculations.

• Length measurement (single measurement and continuous measurement)
• Area calculation
• Digital spirit level (axis and surface)
• Volume calculation
• Indirect length calculation (Pythagoras)

Further information
http://tms.benning.de/ld40-ld60

On the Internet, you will find the following additional information directly at the specified link or at www.benning.de (product search):

• Operating manual of the device in several languages
• Further information depending on the device (e. g. brochures, technical reports, FAQs)

1.1 General notes
Target group
This operating manual is intended for the following groups of people:

• Professional users, craftspeople and do-it-yourselfers

Required basic knowledge
To understand these operating manual, you will need general knowledge of testing and measuring equipment. Moreover, you will need basic knowledge of the following issues:

• Length measurement, area and volume calculation as well as trigonometric functions

Purpose of the operating manual
This operating manual describes the device and provides you information about how to handle it.
Keep this operating manual in a safe place for later use. Read this operating manual before handling the device and follow the instructions.
NOTE
Disclaimer of liability
Please make sure that any person using the device has read and understood the instructions of this operating manual before handling the device and that the instructions are adhered to in all points. Non-observance of this operating manual might result in product damage, property damage and/or personal injury.
Benning assumes no liability for damage and malfunctions resulting from the failure to observe the instructions in this operating manual.
The devices are subject to continuous further development. Benning reserves the right to make changes to the device’s design, configuration and technology. The information in this operating manual corresponds to the state of technical knowledge at the time of printing. For this reason, no claims for certain device characteristics can be derived from the contents of this operating manual.
Information in this operating manual can be changed at any time without prior notice. Benning is not obligated to make amendments to this operating manual or to keep it up to date. Direct any technical questions to Technical Support [} page 9].
Trademarks
All trademarks used are the property of their respective owners, even if they are not separately marked as such.
1.2 History

Table 1: History
1.3 Service & support
Please contact your specialty retailer or the BENNING Service Center for any repair or service work that might be required.
Technical Support
Please contact our Technical support for technical questions on handling the device.

Returns management
Easily and conveniently use the BENNING returns portal for a quick and smooth returns processing:
https://www.benning.de/service-de/retourenabwicklung.html

Return address
BENNING Elektrotechnik und Elektronik GmbH & Co. KG
Retourenmanagement
Robert-Bosch-Str. 20
D – 46397 Bocholt

Safety

2.1 Warning system
This operating manual contains notes that must be taken into consideration for your personal safety and in order to avoid injuries and damage to property. Warnings about your personal safety and to prevent personal injuries are marked with a warning triangle. Warnings on sole prevention of material damage are shown without a warning triangle. The warnings are shown in descending order depending on the hazard level as follows.

**| DANGER
Extremely dangerous situation for humans
If you do not pay attention to this warning, irreversible or deadly injuries will occur.
---|---
**| WARNING
Hazard to humans
If you do not pay attention to this warning, irreversible or deadly injuries could occur.
**| CAUTION
Minor hazard to humans
If you do not pay attention to this warning, minor or moderate injuries could occur.
| NOTICE
Danger to property, not to persons**
If you do not pay attention to this warning, material damage could occur.

If multiple hazard levels occur, the warning for the highest respective hazard level will be used.
In addition, a warning about personal injuries can also include a warning about material damage.
2.2 Standards applied
The device has been built and tested in compliance with the following standards and has left the factory in perfectly safe condition.

• DIN EN 50689
• IEC / DIN EN 60825‑1

2.3 Symbols used
Symbols on the device

| Warning of laser beam! Please observe the information provided in this operating manual in order to avoid dangers.
****| The device complies with EU directives.

| The device complies with UK directives.

| At the end of product life, dispose of the unserviceable device via appropriate collecting facilities provided in your community.

| Please observe the operating manual.

| This symbol indicates the inserted batteries.

Table 2: Symbols on the device
Symbols used in the operating manual

Table 3: Symbols used in the operating manual
2.4 Intended use
Only use the device within the framework of the corresponding technical data. Any operating conditions that deviate from this shall be considered as improper use. Solely the user of the device shall be liable for any resulting damage.
Please note the following:

• In case of improper use, the liability and warranty claims become void. Solely the user of the device shall be liable for any damage resulting from improper use. Uses not complying with the intended use include e. g.:
  – Use of components, accessories, spare or replacement parts that have not been released and approved for the respective application by Benning
  – Non-observance, manipulation, changes or misuse of the operating manual or the instructions and notes contained therein
  – Any form of misuse of the device
  – Any use other than or beyond that described in this operating manual

• Warranty and liability claims are generally excluded if the damage is the result of force majeure.

• If any prescribed services are not performed regularly or not on time, according to the manufacturer’s specifications during the warranty period, a decision about a warranty  claim can only be made once the findings are available.
  Direct any questions to Technical Support [ page 9].

Using the device
Please observe the following basic obligations when using the device:

• The device may only be used in a technically perfect and safe condition. Always check the device for damages before using it.
• The personnel must be qualified for the respective task.
• Observe relevant regulations on occupational safety and health as well as those on environmental protection.
• The device may only be used in dry environments.
• Do not use the device in potentially explosive environments.

WARNING
Opening the device
Eye damage or risk of accident due to glare are possible in case of eye contact with the laser beam when opening the device.

• Do not open the device (except for the battery compartment).
• Please contact your specialty retailer or the returns management for any repairs [ page 9].

Securing the device
If the device is not in a technically perfect and operationally safe condition, safe operation is no
longer guaranteed. Make sure that the following measures are taken:

• Switch off the device.
  The following characteristics indicate that safe operation is no longer guaranteed:

• The device shows visible damage.

• The device does not work properly in compliance with regulations (e. g. errors during measurements).

• The device shows recognizable consequences of prolonged storage under inadmissible conditions.

• The device shows recognizable consequences of extraordinary stress due to transport.

2.5 Special types of risks
WARNING
Laser beam
Eye damage or risk of accident due to glare are possible in case of eye contact with the laser beam.

• Never look directly into a laser beam or its reflections!
• If the laser beam hits your eye, close your eyes and immediately turn your face away from the laser beam. Normally, eyes close automatically due to the blink reflex and aversion responses take place.
• Do not point the laser beam at persons or animals.
• Do not leave the unit switched on unnecessarily.

Scope of delivery

The scope of delivery of the device includes the following components:

• 1 x laser distance meter BENNING LD 60
• 1 x protective rubber holster
• 1 x compact protective pouch
• 1 x wrist strap
• 2 x 1.5 V micro batteries (AAA / IEC LR03)
• 1 x quick reference guide

Device description

4.1 Device structure

Rear panel of the device

• Battery compartment
  The device is powered by two 1.5 V micro batteries (AAA).

• Notes and information about the device

Digital display

1| Storage location of the measurement in the measured value memory| 2| Selected reference plane
---|---|---|---
3| Laser status (active / inactive)| 4| Battery status
5| Operation with protective rubber holster (green edge) or without| 6| Selected unit
7| Currently measured value| 8| Addition / subtraction
9| Last measured values| 10| Selected measuring function
11| Angle of inclination| 12| Digital spirit level for angle of inclination

4.2 Functions
Helpful functions for general operation

• In the menu, the respective function of the keys is shown on the digital display.
• For many of the measuring functions, the length to be measured or the measured value determined and displayed is indicated on the digital display by the respective part of the measuring function symbol flashing.

4.2.1 Key functions

seconds)

Table 4: Key functions
4.2.2 Menu
The following table describes the menu items of the menu:

Table 5: Menu
4.2.3 Reference plane
The zero point of the length measurements is located on the set reference plane. This reference plane is perpendicular to the laser beam and, depending on the setting, either on the upper or lower edge of the device. Press the “Reference plane” key to change the reference plane. The currently set reference plane is shown on the digital display.
Protective rubber holster
The protective rubber holster “shifts” the edge of the device and thus influences the reference plane. Set whether you are operating the device with or without the protective rubber holster. Press and hold the “Reference plane” key (>2 seconds) to toggle between operation with and without the protective rubber holster. The currently set operating mode is shown on the digital display (with protective rubber holster → green edge of the symbol).
4.2.4 Addition and subtraction
The device can add or subtract measured values during length measurements (single measurements). Press the “+” or “-” key after a length measurement to add the subsequent measured value to the previous measured value or to subtract it.
4.2.5 Measuring units
The device can display the measuring results and determined values in different units. You can set these units in the “Measuring units” menu.

| Metre| Centimetre| Millimetre| Foot| Inch
---|---|---|---|---|---
Length| m| cm| mm| ft| in
Area| m²| m²| m²| ft²| ft²
Volume| m³| m³| m³| ft³| ft³

Table 6: Measuring units
4.2.6 Measured value memory
The device has a measured value memory that stores the last 50 measuring results or determined values. In the “Measured value memory” menu, you can view the stored values by toggling between the values with the “-” and “+” keys. In addition, the number of the current storage location is displayed and the measurement or the determined value are displayed in the symbol for the respective measuring function. Press and hold the “Measurement” key (>2 seconds) to delete the entire measured value memory.
4.2.7 Calibrating the digital spirit level
If necessary, you can recalibrate the digital spirit level of the device in the menu “Calibration of the spirit level” [ page 31].
4.2.8 Key tones
The device confirms each operation of keys with an acoustic signal. In the “Key tones” menu, you can set two different volumes for these acoustic signals or disable them.
4.2.9 Automatic rotation of the digital display
If you tilt the device correspondingly, the digital display will automatically rotate by 90°. In the menu “Automatic rotation of the digital display”, you can enable or disable this function.
4.2.10 Error messages

within the measuring range.
Err02| Reflected signal too weak| Carry out the measurement at a measuring point with a different surface.
Err03| Measured value outside of display range (max. 99 999)| Divide the measurement into smaller subsections.
Err04| Pythagoras calculation failed| Check whether the measured values are correct and the correct measuring sequence has been observed.
Err05| Low battery| Replace the batteries of the device.
Err06| Ambient temperature outside the operating temperature| Carry out the measurement at a permissible ambient temperature.
Err07| Ambient light too bright| Carry out the measurement in a darker environment.

Table 7: Error messages
4.3 Measuring ranges
Length measuring ranges

Table 8: Length measuring ranges

Operation

The device enables you to carry out various measurements and calculations.
5.1 Requirements for measuring

• Please consider the brightness of the surrounding light conditions:
  – The ambient light must not be too bright.
  – Avoid measuring in direct sunlight.

• Avoid measuring towards reflective, transparent or very porous surfaces.

• Make sure that the laser beam outlet and the receiving lens are not covered.

• Make sure that the device does not move during the measurement (exception: continuous measurement).

• Select the reference plane according to the application.

**WARNING
Laser beam**
Eye damage or risk of accident due to glare are possible in case of eye contact with the laser beam.

• Never look directly into a laser beam or its reflections!
• If the laser beam hits your eye, close your eyes and immediately turn your face away from the laser beam. Normally, eyes close automatically due to the blink reflex and aversion responses take place.
• Do not point the laser beam at persons or animals.
• Do not leave the unit switched on unnecessarily.

5.2 Length measurement (single measurement)
The length measurement (single measurement) is intended for measuring a distance between the device and an opposite surface. After being switched on, the device is automatically in this measuring function.
Requirements

• Please observe the requirements for measuring [ page 20].
• Selected measuring function: length measurement (single measurement)

Figure 3: Length measurement (single measurement, exemplary)
Procedure

1. Point the laser beam at the measuring point (A).
2. Press the “Measurement” key.
   The measurement is started and the measured value will be shown on the digital display.

5.3 Length measurement (continuous measurement)
Length measurement (continuous measurement) is intended for continuously measuring a changing distance. In addition to the currently measured distance, the shortest and the longest measured distance of the measurement series are shown on the digital display.
Requirements

• Please observe the requirements for measuring [ page 20].
• Selected measuring function: length measurement (continuous measurement)

Figure 4: Length measurement (continuous measurement, exemplary)
Procedure

1. Point the laser beam at the measuring point.
   The measured value will be shown on the digital display and updated when the distance changes.

5.4 Area calculation
The area calculation function is intended for determining the area of a rectangular surface by measuring two measured lengths that are perpendicular to each other.
Requirements

• Please observe the requirements for measuring [ page 20].
• Selected measuring function: area calculation

Figure 5: Area calculation (exemplary)
Procedure

1. Point the laser beam at the first measuring point (A).

2. Press the “Measurement” key.
   The measurement is started and the measured value (L) will be shown on the digital display.

3. Point the laser beam at the second measuring point (B).

4. Press the “Measurement” key.

The measurement is started and the measured value (W) will be shown on the digital display. The device calculates the area from the two measurements and the determined value will be shown on the digital display.
5.5 Volume calculation
The volume calculation function is intended for determining the volume of a rectangular space by measuring three measured lengths that are perpendicular to each other.
Requirements

• Please observe the requirements for measuring [  page 20].
• Selected measuring function: volume calculation

Figure 6: Volume calculation (exemplary)

Procedure

1. Point the laser beam at the first measuring point (A).

2. Press the “Measurement” key.
   The measurement is started and the measured value (L) will be shown on the digital display.

3. Point the laser beam at the second measuring point (B).

4. Press the “Measurement” key.
   The measurement is started and the measured value (W) will be shown on the digital display.

5. Aim the laser beam at the third measuring point (C).

6. Press the “Measurement” key.
   The measurement is started and the measured value (H) will be shown on the digital display. The device calculates the volume from the three measurements and the determined value will be shown on the digital display.

5.6 Indirect length calculation
The indirect length calculation is intended for determining certain distances using length measurements to various points and angle measurements of the respective axes.
5.6.1 Indirect length calculation 1
Requirements

• Please observe the requirements for measuring [ page 20].
• Selected measuring function: indirect length calculation 1

Figure 7: Indirect length calculation 1 (exemplary)

Procedure

1. Point the laser beam at the first measuring point (A).

2. Press the “Measurement” key.
   The measurement is started and the measured value will be shown on the digital display.

3. Point the laser beam perpendicularly to the surface at the second measuring point (B).

4. Press the “Measurement” key.
   The measurement is started and the second measured value will be shown on the digital display.
   The device calculates the distance between the two measuring points from the measurements and the determined value will be shown on the digital display.

5.6.2 Indirect length calculation 2 / 3
Requirements

• Please observe the requirements for measuring [ page 20].
• Selected measuring function: indirect length calculation 2 or 3

Procedure

1. Point the laser beam at the first measuring point (A).

2. Press the “Measurement” key.
   The measurement is started and the measured value will be shown on the digital display.

3. Point the laser beam at the second measuring point (B).

4. Press the “Measurement” key.
   The measurement is started and the second measured value will be shown on the digital display.

5. Point the laser beam perpendicularly to the surface at the third measuring point (C).

6. Press the “Measurement” key.
   The measurement is started and the third measured value will be shown on the digital display. The device calculates the distance between the measuring points A and B from the measurements and the determined value will be shown on the digital display.

5.6.3 Indirect length calculation 4
Requirements

• Please observe the requirements for measuring [ page 20].
• Selected measuring function: indirect length calculation 4

Figure 9: Indirect length calculation 4 (exemplary)
Procedure

1. Point the laser beam at the measuring point (A).
2. Press the “Measurement” key.
   The length measurement and angle measurement (in relation to the horizontal) are started and the measured values will be shown on the digital display. The device calculates the distance between measuring point A and the horizontal perpendicular (with respect to the distance to be calculated) from the measurements. The determined value will be shown on the digital display.

5.6.4 Indirect length calculation 5 / 6
Requirements

• Please observe the requirements for measuring [ page 20].
• Selected measuring function: indirect length calculation 5 or 6

Figure 10: Indirect length calculation 5 and 6 (exemplary)
Procedure

1. Point the laser beam at the first measuring point (A, above the horizontal perpendicular with respect to the distance to be calculated).

2. Press the “Measurement” key.
   The length measurement and angle measurement (in relation to the horizontal) are started and the measured value for the length will be shown on the digital display.

3. Point the laser beam at the second measuring point (B, indirect length calculation 5: below the horizontal perpendicular, indirect length calculation 6: above the horizontal perpendicular with respect to the distance to be calculated).

4. Press the “Measurement” key.
   The length measurement and angle measurement (in relation to the horizontal) are started and the measured values (angle between measuring points A and B) will be shown on the digital display. The device calculates the distance between the measuring points A and B from the measurements and the determined value will be shown on the digital display.

5.7 Digital spirit level (axis)
The digital spirit level (axis) is intended for measuring an angle of an axis in relation to the horizontal and for displaying the corresponding inclination.
Requirements

• Please observe the requirements for measuring [ page 20].
• Selected measuring function: digital spirit level (axis)

Figure 11: Digital spirit level (axis, exemplary)
Procedure

1. Place the device flat onto the surface to be checked.
2. Align the device. The axis of the device must correspond to the axis to be checked.
   The measured value will be shown on the digital display and a digital spirit level indicates the inclination.
   In horizontal position, the alignment point (“bubble”) is exactly between the two markings and will be displayed in green.

5.8 Digital spirit level (surface)
The digital spirit level (surface) is intended for displaying an inclination of a surface in relation to the horizontal.
Requirements

• Please observe the requirements for measuring [ page 20].
• Selected measuring function: digital spirit level (surface)

Procedure

1. Place the device onto the surface to be checked.

The digital spirit level indicates the inclination. In horizontal position, the alignment point (“bubble”) is exactly within the inner marking and will be displayed in green.
5.9 Stake-out function
The stake-out function is intended for dividing a distance into previously set subsections of equal lengths.
Requirements

• Please observe the requirements for measuring [ page 20].
• Selected measuring function: stake-out function

Figure 12: Stake-out function (exemplary)
Procedure

1. Set the desired length of the subsections.

2. Press the “Measurement” key.

3. Point the laser beam at the measuring point.

4. Press the “Measurement” key.
   The measurement is started and the following values will be shown on the digital display:
   – Set length of the subsections (setting)
   – Number of subsections with respect to the measured distance (measured value)
   – Measured distance (measured value)
   – Yellow arrows on the top and bottom of the digital display: display in which direction the next complete subsection is located (integer).

5. Reposition the device accordingly.
   Press the “Measurement” key to interrupt the measurement and press the “Menu” key to exit the measuring function.

Maintenance

The battery compartment may be opened for maintenance work. Apart from that, there are no components in the device that you can replace.
WARNING
Opening the device
Eye damage or risk of accident due to glare are possible in case of eye contact with the laser beam when opening the device.

• Do not open the device (except for the battery compartment).
• Please contact your specialty retailer or the returns management for any repairs [ page 9].

6.1 Maintenance schedule
The following table provides an overview of all maintenance and servicing work that you must carry out permanently or at regular intervals.

Table 9: Maintenance schedule
6.2 Cleaning the device
Clean the device regularly and as the need arises. Make sure that the battery compartment and the battery contacts are not contaminated by leaking battery electrolyte.
Requirements

• A clean and dry cloth or special cleaning cloth

NOTICE
Wrong cleaning agents
Using the wrong cleaning agents can damage the device.

• Do not use any solvents, abrasives or polishing agents.

Procedure

1. Clean the exterior of the device with a clean and dry cloth or a special cleaning cloth.

2. Clean the receiving lens and the outlet of the laser beam very carefully:
   – Make sure that there is no dirt on the receiving lens and on the outlet of the laser beam.
   – Clean the receiving lens and the outlet of the laser beam only with cleaning agents that are also suitable for camera lenses.
   – Do not try to remove dirt from the receiving lens or the outlet of the laser beam with pointed objects (risk of scratching).

3. Check the battery compartment. To open and close the battery compartment, follow the procedure given in the chapter “Replacing the batteries” [ page 30].

4. In case of electrolyte contamination or white deposits in the area of the battery or the battery compartment, clean the batteries and these areas by means of a clean and dry cloth. Replace the batteries, if necessary [ page 30].

6.3 Replacing the batteries
The device is powered by two 1.5 V micro batteries (AAA). Replace the batteries as soon as they are discharged.
Requirements

• Discharged batteries inside the device (all segments of the battery symbol on the digital display have disappeared and the battery symbol is flashing)
• 2 new 1.5 V micro batteries (AAA)

Procedure

1. Remove the protective rubber holster. To do this, proceed as follows:
   – Hold the device with both hands and press the rubber lip sideways over the edge of the device with your thumbs at the two front upper corners of the device.
   – Pull the protective rubber holster downwards off the device.

2. Place the device face down (onto an anti-slip surface).

3. Lift the battery compartment cover off the device. To do this, hold the device with one hand and pull the battery compartment cover off the device by the edge on the bottom side with the other hand.

4. Remove the discharged batteries from the battery compartment and dispose of them properly [ page 33].
   If you cannot remove the second battery even after tilting the device, slightly lift the end of the battery with a fingertip and tilt the device again.

5. Insert the new batteries into the battery compartment observing correct polarity.

6. Place the battery compartment cover back onto the device. To do this, proceed as follows:
   – Slide the battery compartment cover completely onto the battery compartment from below.
   – On the bottom side, press the battery compartment cover onto the device from above until it clicks into place.

7. Put the protective rubber holster back onto the device.

6.4 Calibrating the digital spirit level
If necessary, you can recalibrate the digital spirit level of the device.
Requirements

• Horizontal surface
  Before calibration, make sure that each axis of the surface used for calibration is horizontal.

• Menu: “Calibrating the spirit level”

• Please observe the digital display during calibration. The display shows the positioning of the device required for the respective calibration step.

NOTICE
Incorrect calibration
Incorrect calibration might cause subsequent measurements made with the digital spirit level to be faulty.

• Before calibration, make sure that each axis of the surface used for calibration is horizontal.
• Carry out the calibration properly.

Procedure

1. Place the device upright onto the horizontal surface (the laser beam output pointing upwards) so that the digital display is facing you and press the “Measurement” key.
   A green check mark is briefly shown on the digital display and the device goes to the next step.

2. Place the device upright, rotate it by 180° so that the digital display is facing away from you and press the “Measurement” key.
   A green check mark is briefly shown on the digital display and the device goes to the next step.

3. Place the device with the back flat onto the horizontal surface so that the digital display is facing upwards.

4. Turn the device so that the digital display is on the left and press the “Measurement” key.
   A green check mark is briefly shown on the digital display and the device goes to the next step.

5. With the device lying flat, rotate it by 180° so that the digital display is on the right and press the “Measurement” key.
   A green check mark is briefly shown on the digital display and the calibration is completed. The device should display an angle of 0°.

Technical data

Protection category
(DIN VDE 0470-1, IEC / EN 60529)| IP 54
1st digit: 5 = complete protection against accidental contact and protection against dust in harmful quantity
2nd digit: 4 = protection against splashing water from all directions
Laser type| 650 nm, Class II, <1 mW
Laser dot size| 25 mm at a distance of 30 m
Measuring range| 0.05 … 60 m
Measuring speed| 2 measurements per second
Housing dimensions (length x width x height)| 105 mm x 48 mm x 21 mm
Weight (batteries included)| 83.7 g
Battery life (alkaline batteries)| up to 10 000 measurements
Operation
Operating temperature| -5 … 40 °C (do not permanently expose the device to sunlight)
Max. relative air humidity| 85 % RH
Operating conditions| To be used inside or outside buildings, in each case in dry environments
Storage
(remove the batteries from the device)
Ambient temperature| -20 … 60 °C (do not permanently expose the device to sunlight)
Max. relative air humidity| 85 % RH

Disposal and environmental protection

At the end of product life, dispose of the unserviceable device and the batteries via appropriate collecting facilities provided in your community.
The text and illustrations correspond to the state of technology at the time of printing. Subject to technical changes. No liability accepted for printing errors.

BENNING Elektrotechnik und Elektronik GmbH & Co. KG
Münsterstraße 135 – 137
D – 46397 Bocholt
Phone: +49 2871 93-0 Fax: +49 2871 93-429
Internet: www.benning.de
E-Mail: [email protected]

References

• BENNING LD 60 / LD 40 - BENNING

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