Quality Assurance Department

Staff
Quality Assurance / ISO System Manager: Dan Ranson
Technician: Rollo Johnson
Inspector: Marilyn Hautly
Inspector: Joe Marino

Seiler Instrument and Manufacturing Company earns ISO 9001:2000 Certification. Seiler Instrument Company completed its ISO 9001:2000 Certification process in August 2003. The global certification includes all four divisions of the company. Seiler Instrument is a prime supplier manufacturer of military Fire Control Systems and mechanical-optical equipment. Seiler Instrument Company has been in business for over 50 years and initiated the program with Missouri Enterprise, a industrial consulting firm.

Test Equipment

SPC System Information
Manufacturer: DataMyte
Software: TurboSPC VA 4.3
System used with 2 DataMyte 953 Collectors

At Seiler Instrument & Manufacturing we use the DataMyte TurboSPC VA (variable & attribute) V4.3 software along with two DataMyte 953 Data Collectors for the actual data collection. The data collectors make SPC data collection easy and foolproof. They do all of the calculation for the operator thereby removing the possibility of any mathematical error. Any out of control or out of specification entries made are flagged in red and the user is prompted for a cause. The controls limits are also automatically calculated and updated with every subgroup collected. The collectors also check for trends in the run and make appropriate notes. The software that manages the data and can create any of a number of charts including but not limited to: X-Bar and Range, Histogram, X-Bar and Sigma, Individual/Moving Range, CuSum and Range, Box and Whiskers, Process Capability, Individual Measurement, Moving Average/Moving Range, Scatter. At Seiler we take an SPC sample that is at least 20% of the lot size for every run on our NC/CNC work centers. Every subgroup is date/time stamped automatically. Each subgroup is also tagged with the work center number and the operator's initials. Upon completion of a run, the data is checked 100% by a member of the Quality Assurance Team for any possible problems or errors.

Vibration
Manufacturer: MB
Controlled by: C10E Exciter (Exciter Control Type N572)

The model C10E Vibration Exciter by MB Instrumentation Systems is capable of loads up to 100 pounds to 10G. It has a 1200 pound force vector and 2550 pound force peak with a capability of 5 - 3000 cycles per second. It is capable of sweep or set period cycles vibration.

Shock Tester
Manufacturer: AVCO
Model Number: SM-110

Oscilloscope
Manufacturer: Fluke
Model Number: PM3365A 
(100MHz 100MS/s)

The model SM110 AVCO shock tester uses a maximum of 125 psi to power it with a 200 pound maximum test load. It is capable of a terminal velocity up to 400 in./sec. with no load (285 in./sec. with 150 pound specimen). The cycling rate is 4 per minute. Specimen size is limited on one side to 11 inches from center of carriage. Center of gravity of specimen must be within 1 1/2 inch from center of carriage. The SM110 is capable of half-sine, sawtooth, and square wave pulse shapes to comply with typical military specifications such as MIL-STD-202, MIL-STD-810, and MIL-STD-750 and the like.

Environmental Testing
Environmental Chamber
Manufacturer: Thermotron
Model: ECO1014-P
Watlow series 942

Environmental Chamber
Manufacturer: Tenney
Model: T500FT
Program Controller: Bristol Tmp Cntrllr

Environmental Chamber
Manufacturer: So-Low
Model: A80-160H
Program Controller: Omron ES100P

Digital Hygrometer / Thermometer / Dew-Point Tester
Manufacturer: Fisher Scientific

All of Seiler's three environmental chambers have a temperature range from -80 to +160 degrees Fahrenheit with full humidity control from 0% to 100%. The maximum testing size is 36" deep x 36" high by 36" wide. Temperature control is handled automatically through computer or mechanical cam or manually.

Optical Comparators
30" Optical Comparator
Manufacturer: OGP
Model: Opticom Qualifier 30

14" Optical Comparator
Manufacturer: Scherr Tumico
Model: 22-1500

Seiler has at its disposal two optical comparators for your special measuring needs such as angles, distances, tooth-to-tooth measurements on external gears and threads, etc.

Coordinate Measuring Machine
Manufacturer: Mitutoyo
Model Number: B241
Software: GeoMeasure 3000

Seiler's Coordinate Measuring Machine with state of the art operating system is just the ticket for all your tolerancing needs. It has a measuring range of 28" wide x 24" deep x 24" high. It can quickly and accurately measure such things as perpendicularity, flatness, roundness, etc. and makes measuring hole patterns a snap.

Hardness Testing
The Step-Two hardness measuring system (New Age Industries Inc.) can meet all your Rockwell "C" scale hardness testing needs.

Optical Testing Capabilities

Interferometry
Phase Measuring Interferometer System
Manufacturer: Zygo
Model: MK-III-01 (Mark III)

Our interferometer (Zygo model Mark III) gives us the capability of measuring parallelism (wedge), surface flatness, plano transmitted wavefront, prism testing, transmission sphere selection, concave surface figure, convex surface figure, non-contacting spherometer radius & figure, lens/system performance, parabola surface figure, hyperbola surface figure, concave elliptical surface figure.

Optomatic Lens Bench
Manufacturer: Trioptics
Controlled by: 386DX40 PC

With our Optomatic we can quickly and accurately check most optical parameters. Some applications included are: effective focal length, flange focal length, angles and powers of prisms and wedges, centering errors, astigmatism, and MTF-measurement. The Optomatic was designed by Trioptics--it is a fully automated, computerized optical bench, and it's speed and accuracy are unequalled.

Note: Seiler was the first U.S. Company to have this fully automated, computerized lens testing system.

Air Suspension Table
Manufacturer: Modern Optics
Table Size: 4' x 6'

The interferometry system and the Optomatic lens bench are both used on the self leveling air suspension table to improve accuracy and repeatability.