General Information

Serial #

35-104

Part Number

1

Total Parts

1

AKA

Pressure function transfer standard

Patents

N/A

General Description

metal casing and parts/ synthetic controls, power cord, parts/ cardboard sheets taped to top

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

40.0 cm

Width

24.8 cm

Height

17.4 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Meteorology

Category

Miscellaneous

Sub-Category

N/A

Manufacturer

AKA

Garrett

Country

United States of America

State/Province

California

City

Unknown

Context

Country

Canada

State/Province

Ontario

Period

1990's

Canada

Part of a large collection of meteorological instruments acquired from the Meteorological Service of Canada (previously Atmospheric Environment Service) by the CSTM since 1967. MSC is the government agency responsible for collecting and disseminating meteorological data and forecasts in Canada. It was founded in 1871 in Toronto where it is still headquartered. The MSC was originally on the University of Toronto downtown campus but moved to Downsview in 1971 on land owned by UofT. The headquarters houses laboratories, research facilities and calibration and instrument maintenance facilities (now largely contracted out).

Function

An instrument that measures atmospheric pressure and indicates the results in a digital format, used in the calibration of pressure measuring instruments.

Technical

An example of a precision calibration instrument used in a laboratory to verify air pressure reading instruments. This instrument detects pressure and displays the results as inches of mercury or millibars, or the equivalent feet or meters of altitude. It is a single channel monitor designed to provide high-precision indication of input pressure over the range utilizes by altimeters, air speed indicators, air data computers or other pressure devices. . This instrument contains an absolute pressure quartz transducer, which is extremely insensitive to attitude and the type, density or humidity of the operating gas. It tolerates environmental extremes as well as shock and vibration. It contains a 8085AH microprocessor with 512 bytes of RAM provided by two Intel 8155H chips.According to its manufacturer, this instrument closely approximates accuracy capabilities of commonly available industrial secondary standards (Ref. 1). In 1936, Cliff Garrett founded a company which came to be known as Garrett AiResearch or simply AiResearch. Garrett AiResearch designed and produced a wide range of military and industrial products for aerospace and general industry (Ref. 2).

Area Notes

Unknown

Details

Markings

white lettering on plastic label attached to front reads 'PRESSURE FUNCTION CALIBRATION STANDARD'/ white lettering on plastic label attached to front reads 'AIRESEARCH/ MANUFACTURING COMPANY'/ GARRETT [logo]'/ plate on back reads 'FSCM 70210/ AIRESEARCH/ MFG CO OF CALIF/ MADE IN USA/ PRESSURE FUNCTION TRANSFER STANDARD/ PART 909808-1/ SERIAL 35-104'/ label on back reads 'G.M.L. INDENT NO. 07217/[GARRETT]/ GARRETT MANUFACTURING LIMITED/ 255 ATTWELL DRIVE . REXDALE, ONTARIO, CANADA'/ white stamped lettering on back reads 'MARCH 26 1985', 'JAN 13 1986', '21 MAR 91' with two illegible stamps/ two printed labels on front read 'CALIBRATION VALID 406-1151 HPA' and 'DO NOT EXCEED 1200 MB'/ handwritten calibration notes on paper sheets attached to casing top with dates from 1993 to 1995

Missing

N/A

Finish

black painted case/ white and red synthetic controls/ black power cord/ white? paper

Decoration

N/A