From ‘Instruction manual for the Collins Stead-Wells Spirometer 06041″, published 1979 by W. E. Collins, Co.
Tag Archives: Stead-Wells
Spirometer, Collins Stead-Wells Modular, circa 1978
From ‘Collins’ Catalog of Pulmonary Function Testing Instruments”, undated by likely from around 1978, page 1-7.
Spirometer, Collins, Stead-Wells, circa 1970
Spirometer, Stead-Wells, Schematic, 1967
Spirometer, Collins Survey, 1981
From: Instruction Manual for the Collins Survey Spirometer, Manual No. 22168, Third Printing May 1981.
“1.A. DESCRIPTION
“A.1. The Survey Spirometer is a precision, calibrated, water-seal spirometer which may be used for the performance of ventilation tests.
“A.2. Figure 1 shows the basic equipment layout with all the major components identified. The spirometer body is constructed of copper while a rugged cast aluminum base supports the unit. Lightweight plastic is used for the spirometer bell.
“1.B. MECHANICAL SPECIFICATIONS
“B.1. Dimensions
“Length: 16-18”
“Width: 12”
“Height: 20”
“Shipping Weight: 32 pounds.
“Net Weight: 16 pounds.
“Water capacity: 1 quart, approximately.
“B.2. Spirometer Performance Specifications:
“Kymograph: single speed, 1920 mm/min.
“Spirometer capacity: 8 liters.
“Response: +/- 1% 0-140 CPM.
“Calibration Accuracy: +/- 1% for life of bell.
“Safety: UL Listed 544”
Spirometer, Collins Stead-Wells, circa 1970
Spirometer, Collins Stead-Wells, circa 1970
Collins Stead-Wells spirometer. Circa 1970. Found on an Ebay listing. Although it is being sold with a soda-lime canister this is probably not part of the original system.