Global A-Series User Manual (English)

Questions and Answers:

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Miguel SanchezAug 13, 2025
What to do if the LED light source on my Global A-Series does not turn on?
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  Dawn LopezAug 13, 2025
  If the LED light source on your Global Microscope doesn't turn on, first, remove the horizontal arm, spring arm, or 45-degree arm, and extension arm covers to check for any damaged or pinched cables. Next, make sure the filter lever is in one of the three correct positions. Finally, remove the horizontal or 45° arm cover and ensure the LED power cord is securely plugged into one of the plugs on the multiple socket outlet located in the horizontal or 45° arm.
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Troy ThompsonAug 17, 2025
How to troubleshoot a Global A-Series with no power?
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  Adriana StewartAug 17, 2025
  If your Global Microscope has no power, ensure the AC power cord is properly connected. Also, verify that the building circuit breaker hasn't tripped, or test the outlet with another device. Finally, check the system’s fuses and replace them if necessary, replacing both fuses if either is blown.
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Kimberly TaylorAug 20, 2025
Why does the Global A-Series floorstand seem unstable?
- I
  ianjamesAug 21, 2025
  If the floorstand of your Global Microscope seems unstable, ensure that both weights are installed in the base, under the plastic cover.
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Theodore ChavezAug 25, 2025
What to do if Global A-Series Microscope system arms drift horizontally?
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  James JenkinsAug 26, 2025
  If the system arms of your Global Microscope drift horizontally on their own, apply slight tension to the spring arm tension adjustment. If the drifting continues, make sure the wall, floor mount, or ceiling mount is installed level and plumb. If using a floor stand, try moving it to a different location and ensure the column screws are tight.
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Randy RiddleAug 28, 2025
Why are the system arms on my Global A-Series hard to rotate?
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  Shane ThompsonAug 28, 2025
  If the system arms on your Global Microscope are hard to rotate from right to left, it may be because the spring arm tension adjustment knob is adjusted too tight.
P
Philip EwingSep 1, 2025
How to fix a Global Microscope floorstand that is difficult to roll?
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  rwagnerSep 1, 2025
  If your Global Microscope floorstand is difficult to roll, make sure that all the casters are unlocked.
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Mr. Anthony MirandaSep 5, 2025
What causes the vertical position of the Global A-Series arms to not stay in place?
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  Sophia SimpsonSep 5, 2025
  If the vertical position of the arms or microscope on your Global Microscope doesn’t stay in position when released, adjust the counterbalance as described in Section 5.3.
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kimberly51Sep 8, 2025
Why is the vertical movement of my Global A-Series difficult?
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  Matthew McdonaldSep 9, 2025
  If the vertical movement of your Global Microscope is difficult, adjust the counterbalance as described in Section 5.3.

Global A-Series Specifications

General

Eyepieces	WF10x/18mm
Optical System	Finite optical system
Observation Tube	30° inclined, 360° rotatable
Objectives	Achromatic 4x, 10x, 40x, 100x (oil)
Nosepiece	Quadruple
Focusing	Coaxial coarse and fine focusing knobs
Condenser	Abbe condenser NA 1.25 with iris diaphragm
Illumination	LED illumination
Power Supply	100-240V, 50/60Hz