MODEL 27106DT GILL PROPELLER ANEMOMETER JANUARY 2003 MANUAL PN 27106DT-90 R. M.
MODEL 27106DT GILL PROPELLER ANEMOMETER INTRODUCTION The Gill Propeller Anemometer Photochopper is a low threshold precision air velocity sensor employing a fast response helicoid propeller. The instrument uses a high quality optical photo chopper which converts propeller rotation to a square wave signal whose frequency is linearly proportional to air velocity. The output signal is the same regardless of propeller rotation.
CALIBRATION FORMULAS 2. INSTALL NEW BEARINGS a) Gently insert front bearing into housing. b) Push front bearing dust shield back onto housing. c) Carefully slide propeller shaft through front bearing and into housing. d) Slide rear bearing over propeller shaft and gently push it into housing. e) Place photo disk hub on propeller shaft. f ) Allow 0.010 inch (0.25 mm) end play gap between shaft collar/coupling disk and bearing. Tighten set screw (80 oz in, 5600 gm-cm max torque).
D08234R.
