levenhuk Ermenrich PL30 Optical Level User Manual

Ermenrich PL30 Optical Level
User Manual

Ermenrich PL30 Optical Level

1 Base
2 Horizontal circle
3 Horizontal circle reference mark
4 Compensator lock
5 Focusing knob
6 Optical peep sight
7 Objective lens| 8 Horizontal drive screw
9 Leveling screw
10 Bubble level
11 Bubble level observation mirror
12 Eyepiece cover
13 Eyepiece focusing knob
14 Tripod adapter
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Ermenrich PL30 Optical Level
The kit includes: an optical level, plastic carrying case, adjusting pin, hexagon wrench, user manual, and warranty.

Setting and leveling

• Place the tripod legs on the ground and adjust the tripod to the user’s eye level.
• Place the device on the tripod and screw it tight.
• You can carry the device by lifting the tripod. Hold it vertically in order not to damage the device.
• Use the leveling screws (9) to position the bubble level (10) in the center (Fig. 1). The device is leveled when the bubble is in the center.

Aiming and focusing

• Remove the eyepiece cover (12). Aim the device at a bright object or hold a white sheet of paper in front of the objective lens (7), then turn the eyepiece focusing knob (13) until the dark black crosshairs can be seen clearly.
• Aim the device at the leveling rod. If necessary, use the optical peep sight (6) for easy aiming.
• Turn the focusing knob (5) until you can see the graduation marks of the leveling rod clearly (Fig. 2).
• Align the crosshairs exactly to the center of the leveling rod by turning the horizontal drive screw (8).

Height difference measurement

• Put the leveling rods A and B in the vertical position. Place the device between the leveling rods A and B (Fig. 3).
• Focus the optical level on the center of the rod A. Record the height value of the leveling rod at the center of the crosshairs.
• Focus the optical level on the center of the rod B. Record the height value of the leveling rod at the center of the crosshairs (Fig. 4).
• Calculate the height difference by subtracting the smaller height value from the larger one.
  In Figure 3, for example, the height difference is 0.565m. Subtract the value of height B from the value of height A.
  1.78 – 1.215 = 0.565

Distance measuring

• Focus the device on the leveling rod. Record the values of the upper and lower lines of the measuring crosshairs (Fig. 5).
• Multiply the difference in values by 100 to get the distance between the device and the leveling rod.

For example:
The distance between the device and the rod in Figure 5 is 30.5m.
(1.347 – 1.042) x 100 = 30.5

Angle measurement

• Focus the device on the rod A. Rotate the horizontal circle (2) until the “0” mark is aligned with the reference mark (3) (fig. 6).
• Focus the device on the rod B. Record the angle measurement of the reference mark (3) of the horizontal circle (Fig. 6).

For example:
The angle value in Figure 6 is 45°.
x° = 45°

Bubble level calibration

• Check the bubble level (10). Use the leveling screws (9) to position the bubble level (10) in the center. Turn the device 180 degrees. If the bubble level stays in the center, the device is calibrated.
• If the bubble level is not in the center, rotate the leveling screws (9) to move the bubble level. The bubble should be placed at least on the ½ between the center and the outer end of the circle (Fig. 7).
• Then, using the hexagon, bring the bubble to the center by turning the leveling screws (Fig. 8).
• Repeat these steps until the bubble level is calibrated.

Angle calibration
Place the leveling rods A and B at a distance of 30m from each other. Place the optical level between them (Fig. 9). Measure the height values of rods A and B, and then calculate the difference.
For example (Fig. 9):
a1 = 1.937m
b1 = 1.689m
so the difference (d) is a1 – b1 = 0.248. Place the device at a distance of 1m from rod A. Measure the height of the rod A (value a2 in Fig. 10). Calculate the following equation:
b2′ = a2 – d. Then, measure the height of rod B (b2). If the deviation between b2′ and b2 is over 3mm, the crosshairs should be calibrated.
For example:
a2 = 1.724m
d = 0.248
so b2′ is: a2 – d = 1.476 Take off the eyepiece cover (12). Turn the adjusting screw with the pin (Fig. 11) until the values b2′ and b2 are the same. Put on the eyepiece cover again.

Specifications

The manufacturer reserves the right to make changes to the product range and specifications without prior notice.

Care and maintenance

Never, under any circumstances, look directly at the sun, another bright source of light or at a laser through this device, as this may cause permanent retinal damage and may lead to blindness.
Use the device only as specified in the user manual. Keep away from children.
Store the device in a dry cool place. Do not expose the device to shock, continuous vibrations, or extreme high or low temperatures.
Place the device in the carrying case when transporting it. Do not try to disassemble the device on your own for any reason. For repairs and cleaning of any kind, please contact your local specialized service center. Protect the device from sudden impact and excessive mechanical force. Only use accessories and spare parts for this device that comply with the technical specifications. Never attempt to operate a damaged device or a device with damaged electrical parts! If a part of the device or battery is swallowed, seek medical attention immediately.
Levenhuk International Lifetime Warranty
All Levenhuk telescopes, microscopes, binoculars, and other optical products, except for their accessories, carry a lifetime warranty against defects in materials and workmanship. A lifetime warranty is a guarantee on the lifetime of the product on the market. All Lavenham accessories are warranted to be free of defects in materials and workmanship for six months from the purchase date. The warranty entitles you to the free repair or replacement of the Lavenham product in any country where a Levenhuk office is located if all the warranty conditions are met.
For further details, please visit: www.levenhuk.com/warranty
If warranty problems arise, or if you need assistance in using your product, contact the local Levenhuk branch.

Levenhuk Inc. (USA): 928 E 124th Ave. Ste D, Tampa, FL 33612,
USA, +1-813-468-3001, contact_us@levenhuk.com
Levenhuk Optics s.r.o. (Europe): V Chotejně 700/7, 102 00 Prague 102,
Czech Republic, +420 737-004-919, sales-info@levenhuk.cz
Levenhuk®, Ermenrich® are registered trademarks of Levenhuk, Inc.
© 2006–2023 Levenhuk, Inc. All rights reserved.
www.levenhuk.com
20230209

References

• Доживотна гаранция на Levenhuk – Официален уебсайт на Levenhuk в България
• Levenhuk’s official website in USA
• Levenhuk Limited Warranty – Levenhuk’s official website in USA
• Doživotní záruka společnosti Levenhuk – Oficiální webové stránky Levenhuk pro Českou republiku
• Levenhuk Lebenslange Garantie – Die offizielle Website von Levenhuk in Deutschland
• Garantía internacional de por vida Levenhuk – Web oficial de Levenhuk en España
• Levenhuk Lifetime Warranty – Levenhuk’s official website in USA
• A Levenhuk élettartamra szóló szavatossága – A Levenhuk hivatalos magyarországi weboldala
• Gwarancja bezterminowa Levenhuk – Oficjalna witryna internetowa Levenhuk w Polsce
• Поддержка - Гарантийное обслуживание Левенгук - Levenhuk Russia

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