AS ONE 3-6689-01 LRM18B Biological Microscope with LED Plan Lens (Binocular 40 - 1000X)

Manufaturer:	AS ONE
Model:	LRM18B

Product code

111-67784

Price 1,217.49 USD

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Description

Equipped with a rechargeable battery.
Nickel-metal hydride battery can be recharged 500 times.
Usable for 20,000 hours.
Handle design for easy portability. Uses durable ball bearings.
It can be charged and used even in places without power.
Charging will stop automatically when charging is complete.
Plan achromatic objective lenses are used to obtain bright, clear, and contrasty images.
Model number: LRM18B
Total magnification: 40 to 1000x
Specifications: Binocular
Eyepiece: 10x (field of view 18)
Objective lenses: 4x/NA0.1, 10x/NA0.25, S40x/NA0.65, S100x/NA1.25 (oil)
Telescope tube type: 45° tilt angle
Interpupillary distance adjustment range: 54-76mm
Lighting power supply: AC100~240V 50/60Hz
Condenser: Abbe type (N.A1.25)
Lighting: LED lighting
Size: Main unit: 235 x 151 x 362 mm, Stage: 143 x 120 mm
Weight: approx. 5kg

Frequently Asked Questions about the AS ONE 3-6689-01 LRM18B Biological Microscope (LED Plan Lens 40X–1000X):

1. Overview

The AS ONE 3-6689-01 LRM18B is a binocular biological microscope equipped with Plan achromatic objectives and an integrated LED illuminator. It delivers total magnifications from 40X up to 1000X, making it ideal for cell biology, histology, microbiology labs, and teaching applications. Manufacturer specifications form the basis of this overview.

2. Technical Specifications

Specification	Details
Model	AS ONE 3-6689-01 (LRM18B)
Optical System	Plan achromatic
Eyepieces	WF10X, field number 18
Objectives	4X (N.A. 0.10), 10X (N.A. 0.25), S40X (N.A. 0.65), 100X oil (N.A. 1.25)
Magnification Range	40X, 100X, 400X, 1000X
Focusing Mechanism	Coaxial coarse and fine (0.002 mm division)
Stage	143 × 120 mm, mechanical XY
Condenser	Abbe N.A. 1.25 with iris diaphragm
Illumination	White LED, brightness knob; AC 100–240 V, 50/60 Hz
Dimensions (W×D×H)	235 × 151 × 362 mm
Weight	Approximately 5 kg

Specifications are based on manufacturer data.

3. Frequently Asked Questions

3.1/ What total magnification options are available?

Total magnification is calculated by multiplying the eyepiece by the objective. With the WF10X eyepiece and supplied objectives (4X, 10X, 40X, 100X), you achieve 40X, 100X, 400X, and 1000X viewing power.

3.2/ What eyepieces and objectives come standard?

This model includes wide-field WF10X eyepieces (field number 18) and four Plan achromatic objectives:

4X (N.A. 0.10)
10X (N.A. 0.25)
S40X (N.A. 0.65)
100X oil immersion (N.A. 1.25)
3.3/ How is illumination controlled?

An integrated white LED source offers stable, flicker-free lighting. Brightness is adjusted via a front-panel knob. The unit runs on standard AC 100–240 V, 50/60 Hz power.

3.4/ How do I perform oil-immersion observations?
Place a drop of immersion oil on the specimen.
Rotate the 100X oil objective into position.
Focus using fine adjustment only.
Upon completion, clean oil off the objective with lens paper and lens cleaner.
3.5/ How should I clean and maintain the optics?
Use lens tissue lightly moistened with 70% ethanol.
Wipe each lens in a spiraling motion from center outward.
Blow away loose dust on the stage and condenser with a rubber bulb blower.
Store covered when not in use.
3.6/ When and how do I calibrate the microscope?

Calibration is recommended every 6–12 months or when measurements drift. Use a stage micrometer slide to verify and adjust your calibration scale or send the unit to an authorized calibration service.

3.7/ What troubleshooting steps address common issues?
Blurry image: clean lenses, ensure proper tube length, check slide thickness.
Over-illumination: reduce LED intensity or close the condenser diaphragm.
Stiff focusing: apply a drop of microscope-grade grease to the focusing rack.
3.8/ How do I install and power up the microscope?
Place the microscope on a stable, level bench.
Secure the base anti-skid pads.
Connect the power cord to an AC 100–240 V outlet.
Switch on the LED illuminator.
3.9/ What optional accessories are available?
C-mount adapter for digital cameras
Phase contrast and fluorescence filter kits
Specialized stages for Petri dishes or inverted applications
3.10/ Who do I contact for warranty and service?

Refer to your local AS ONE distributor (QTE Technologies - qtetech.com/en) for warranty terms, extended service plans, and spare parts ordering.