An economical choice for manual stream gauging and calculations.
The Gurley Model 1100 Digital Indicator contains CMOS circuitry to convert opto-electronical pulses from the meter to direct display of flow velocity. The unit offers three user-selectable modes:
Automatic: for four-second sampling time, with readout in either feet per second or meters per second.
Automatic averaging: with velocity averaged over a sixteen-second period, for especially turbulent flows.
Manual: for independent measurement of both elapsed time and bucket wheel revolutions.
Other features and advantages include hand-held and self-contained enclosure, as well as built-in diagonostics which verify proper operation.