Newcon Optik MB-2 - Manual (Page 7)

5.3. Operation at night
AT MOON LIGHT
Take off the lens cover (8). Turn on the device-using switch (4). Turning the
eyepiece focusing lever (3) adjust to achieve the most clear image on the screen.
Then obtain the most clear-cut image of the object focusing with ring (2) Repeat
the steps of focusing if necessary.
AT INSUFFICIENT AMBIENT ILLUMINATION
Activate switch (4) for switching on the device. Press button (5) for switching
on IR illuminator. Direct the device on the object to be viewed.
If brightness of the screen is decreasing, replace the batteries.
Take out the batteries during long time periods of non-operation of the device.
6. TROUBLESHOOTING
The scope does not work.
Check that the batteries are installed properly.
Check the charge of the batteries.
Replace if they are weak.
Do not use old batteries with new ones
.
The image does not appear in focus.
Bring the inspected object to the center of the image. Turning the eye-piece
focusing lever (3) adjust to achieve the clearest image on the screen. Then
obtain the most clear-cut image of the object
2. COMPONENTS
MB-2 is supplied with the following components:
NAME QUANTITY
MB-2 N.V
1
Carrying strap 1
Case 1
AAA batteries (optional)
2
Manual 1
Warranty Registration Card
1
3. SPECIFICATIONS of MB-3
Magnification, X 2.5 ±0.2
Field of View, angl.., degrees, not less......…………..….. 26
Minimum Focus Range, m......…………………………….0.8
Operating illumination..………………….from moon light to star’s light
Resolving Power, angl., seconds, not more..
at full moon................…………………....................... 200
at stars light and 1/4 of full moon..............
350
Dyoptric Compensation, Dptr., no less........ ±4
Integral illuminator Working Wave Length, mm 780-880
Power Supply..................................……………………. 3V (2 AAA)
Dimensions, mm, not more.....................………………. 106X151X74
Weight. kg, not more.............................……………….. 0,5
NOTE : As the design is being continuously improved some
descriptions may differ from those given above.