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Installation Report
DVIA-M Series
04-02-2026

Thermo Fisher Scientific Apreo 2S SEM DVIA-ML1000 (251023R5) Installation Report

DVIA-M Series
Installation Report
Thermo Fisher Scientific
Apreo 2S
DVIA-ML1000

Overview

DVIA-ML1000 active isolation with Thermo Fisher Scientific Apreo 2S SEM; tuning and UI-program measurements while the tool was Turned on / IDLE.

The Vibration specification is provided as a diagram; the measurement summary compares floor vs DVIA-ML1000 for each axis.

Generic vibration criteria (ISO / VC) are in Reference at the end.

Vibration Isolation System Info

Model: DVIA-ML1000

Serial Number: 251023R5

Engineer

Chaewon Lee, DAEIL SYSTEMS

Tuning Date

April 2, 2026

Report written date

April 7, 2026

End User

N/A

Number of Tuning Trial

1st

Location

N/A

Equipment

Manufacturer: Thermo Fisher Scientific

Equipment: SEM

Model: Apreo 2S

Vibration specification (equipment)

Vibration specification

is shown as a manufacturer / allowable-vibration diagram. The measurement summary uses this as the vibration specification context for the VC levels listed in that summary.

Allowable vibration diagram

Equipment Condition

The equipment is Turned on / IDLE during the reported measurement.

Tuning Request

N/A

Conclusion

At the DVIA-ML1000 (on-isolator) measurement points, results are PASS in this summary for Vertical, Left to Right, and Front to Back at the cited frequencies. Floor points in the same summary are FAIL; use the summary to compare floor and isolator.

Measurement Summary

Measurement PointStatusAxisVibration specificationMeasurement DataResult
FloorDVIA-ML1000FloorDVIA-ML1000
1. Floor vibration
2. DVIA-ML1000
Turned on / IDLEVerticalVC-GVC-C
@ 25 Hz
VC-G
@ 25 Hz
FAILPASS
Left to RightVC-DVC-D
@ 8 Hz
{blue}VC-G{/red}
@ 8 Hz
FAIL
Front to BackVC-EVC-E
@ 3.15 Hz
{blue}VC-G{/red}
@ 3.15 Hz
FAIL

Data and Image

Vertical

(VC Curves, Autospectrum, Transmissibility), then Left to Right, then Front to Back; then Equipment picture below. Autospectrum files use narrow-band in the file name (storage).

Vertical VC Curves

Vertical Autospectrum

Vertical Transmissibility

Left to Right VC Curves

Left to Right Autospectrum

Left to Right Transmissibility

Front to Back VC Curves

Front to Back Autospectrum

Front to Back Transmissibility

Equipment picture

Reference

Criterion CurveDescriptionAmplitude
μm/s (µin/s)
Detail Size
μm
Workshop (ISO)Distinctly perceptible vibration. Appropriate to workshops and non-sensitive areas.800 (32,000)N/A
Office (ISO)Perceptible vibration. Appropriate to offices and non-sensitive areas.400 (16,000)N/A
Residential Area (ISO)Barely perceptible vibration. Appropriate to sleep areas in most instances.200 (8,000)75
Operating Theatre (ISO)Vibration not perceptible. Suitable for surgical suites, microscopes to 100x.100 (4,000)25
VC-AAdequate for optical microscopes to 400x, microbalances, optical balances.50 (2,000)8
VC-BAppropriate for inspection and lithography equipment to 3μm line widths.25 (1,000)3
VC-CAppropriate for optical microscopes to 1000x, lithography equipment to 1μm.12.5 (500)1 - 3
VC-DSuitable for demanding equipment including electron microscopes (SEMs/TEMs).6.25 (250)0.1 - 0.3
VC-EFor the most demanding systems including E-Beam lithography at nanometer scales.3.12 (125)< 0.1
VC-FFor extremely quiet research spaces. Not recommended as design criterion.1.56 (62.5)N/A
VC-GFor extremely quiet research spaces. Not recommended as design criterion.0.78 (31.25)N/A

Notes:

- As measured in one-third octave bands over 8-80 Hz (VC-A/B) or 1-80 Hz (VC-C through VC-G).

- Detail size refers to width in microelectronics fabrication or particle size in medical research.

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Case Study Information

Category
Installation Report
SeriesDVIA-M Series
Date04-02-2026
Tags
DVIA-M Series
Installation Report
Thermo Fisher Scientific
Apreo 2S
DVIA-ML1000