Aalborg Totalizer - Manual (Page 5)

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(b) DESCRIPTION
MODEL TOT-10: Totalizer designed to be used with existing models of GFM
mass flow meters and GFC mass flow controllers (calibrated for given flow
rate specified on the back label). It can be connected to the modular jack
instead of the LCD display, or optionally with the additional connector (CBL-
TOT-10) in parallel with the LCD display. Mechanically TOT-10 can be
installed on the top of the LCD display with two brackets and screws (supplied
only for model TOT-10).
MODEL TOT-05: Totalizer designed to be used with any transducer which has
0 to 5 Vdc output signal and time based engineering units. (i.e. units per sec-
ond, units per minute, units per hours) It has to be connected to 12 Vdc power
source and 0 to 5Vdc voltage source with additional cable. It is calibrated for
given flow rate specified on the back label.
(c) FEATURES
The Totalizer takes analog output flow signals of 5 to 10 Vdc from the GFM or
the GFC models, or 0 to 5 Vdc from other transducers. It integrates and accu-
mulates up to 7 digits of direct engineering units for the given gas and flow
rate (i.e. standard liters, standard cubic centimeters, etc.). In order to reduce
low signal (noise) totalizing, provision is made for 1% cut off schematic which
allows to accumulate only flow rates which exceeded 1% F. S.