Installation Report

10-22-2026

ZEISS FE-SEM DVIA-ML1000 Installation Report

DVIA-M Series

Installation Report

PipeChina (China Oil & Gas Pipeline Network Corporation)

ZEISS

FE-SEM

Sigma 360

DVIA-ML1000

260617R5

Overview

Following the installation of DVIA-ML1000 at Tianjin, tuning and vibration measurement were performed.

Vibration measurement was conducted with the equipment in the Idle state.

Data is represented in Autospectrum format and reference material on the vibration level is provided.

Vibration Isolation System Information

Model: DVIA-ML1000

Serial Number: 260617R5

Engineer

Taehun Kim · DAEIL SYSTEMS

Tuning Date

2026.10.22

End User

PipeChina (China Oil & Gas Pipeline Network Corporation)

Number of Tuning Trial

1st

Site

Tianjin

Equipment

Manufacturer: ZEISS

Equipment: FE-SEM

Model: Sigma 360

Vibration Specification

Horizontal

Frequency [Hz]	Allowable [mm/s² RMS]
1 ~ 10	0.04
10 ~ 20	0.17
20 ~ 70	0.3
70 ~	2

Vertical

Frequency [Hz]	Allowable [mm/s² RMS]
1 ~ 8	0.03
8 ~ 45	0.15
45 ~ 100	2

Equipment Condition

Idle

Tuning Request

Image 1 — ZEISS FE-SEM DVIA-ML1000 Installation Report

Conclusion

Following installation and tuning of the DVIA-ML1000 (S/N 260617R5) at the PipeChina site in Tianjin, vibration was measured on the floor and on the isolator with the ZEISS Sigma 360 in the Idle state.

The floor vibration exceeds the ZEISS vibration specification (Section 9) in all three axes. On the DVIA-ML1000, the vibration meets the specification in all three axes (Vertical, Left to Right, Front to Back). Measurement graphs for each axis are provided in Section 14.

Measurement Summary

Measurement Point	Vibration Specifications	Axis	Result
Measurement Point	Vibration Specifications	Axis	Floor	DVIA-ML1000
1. Floor 2. DVIA-ML1000	See Section 9	Vertical	✗ FAIL	✓ PASS
		Left to Right	✗ FAIL	✓ PASS
		Front to Back	✗ FAIL	✓ PASS

Measurement Data Obtained via UI Program

Vertical

Vertical — Autospectrum

Image 2 — ZEISS FE-SEM DVIA-ML1000 Installation Report

Left to Right

Left to Right — Autospectrum

Image 3 — ZEISS FE-SEM DVIA-ML1000 Installation Report

Front to Back

Front to Back — Autospectrum

Image 4 — ZEISS FE-SEM DVIA-ML1000 Installation Report

Installation Photo

Equipment

Image 5 — ZEISS FE-SEM DVIA-ML1000 Installation Report

Reference

The table below classifies vibration levels based on IEST-RP-CC012.2.

Criterion Curve	Description	Amplitude¹μm/s (μin/s)	Detail Size²μm
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. Usually adequate for computer equipment, hospital recovery rooms, semiconductor probe test equipment, and microscopes less than 40x.	200 (8,000)	75
Operating Theatre (ISO)	Vibration not perceptible. Suitable in most instances for surgical suites, microscopes to 100x and for other equipment of low sensitivity.	100 (4,000)	25
VC-A	Adequate in most instances for optical microscopes to 400x, microbalances, optical balances, proximity and projection aligners, etc.	50 (2,000)	8
VC-B	Appropriate for inspection and lithography equipment (including steppers) to 3μm line widths.	25 (1,000)	3
VC-C	Appropriate standard for optical microscopes to 1000x, lithography and inspection equipment (including moderately sensitive electron microscopes) to 1μm detail size. TFT-LCD stepper/scanner processes.	12.5 (500)	1-3
VC-D	Suitable in most instances for demanding equipment, including many electron microscopes (SEMs and TEMs) and E-Beam systems.	6.25 (250)	0.1-0.3
VC-E	A challenging criterion to achieve. Assumed to be adequate for the most demanding of sensitive systems including long path, laser-based, small target systems, E-Beam lithography systems working at nanometer scales, and other systems requiring extraordinary dynamic stability.	3.12 (125)	<0.1
VC-F	Appropriate for extremely quiet research spaces; generally difficult to achieve in most instances, especially cleanrooms. Not recommended for use as a design criterion, only for evaluation.	1.56 (62.5)	N/A
VC-G	Appropriate for extremely quiet research spaces; generally difficult to achieve in most instances, especially cleanrooms. Not recommended for use as a design criterion, only for evaluation.	0.78 (31.3)	N/A

¹ As measured in one-third octave bands of frequency over the frequency range 8 to 80 Hz (VC-A and VC-B) or 1 to 80 Hz (VC-C through VC-G).

² The detail size refers to line width in the case of microelectronics fabrication, the particle (cell) size in the case of medical and pharmaceutical research, etc. It is not relevant to imaging associated with probe technologies, AFMs, and nanotechnology.

The information given in this table is for guidance only. In most instances, it is recommended that the advice of someone knowledgeable about applications and vibration requirements of the equipment and processes be sought.