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MODEL 2234 DIGITAL FLOW COMPUTER ___________________________
Frequency Densitometer
1.
Number of Inputs - One
2.
Type Input - DC coupled for nominal frequency signal as indicated.
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3.
Frequency Range - 1000 to 5000 Hz, minimum pulse width of
0.1 ms.
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4.
Input Resistance - 27 K Ohms.
1.2.2 OUTPUTS
A.
0 - 10 Volts Rate - Mass
1.
2.
3.
SECTION 1
Solartron device - Square wave 0 to -6 V peak (Requires
external capacitive level shifting.
diagram.)
Barton device - Square wave 0 to +15 V peak
Agar device - Square wave 0 to +10 V peak
Solartron device - 1000 Hz to 1350 Hz.
Barton device - 1500 Hz to 2500 Hz
Agar device - 500 Hz to 2000 Hz
Range - Zero to +10.00 V signal, scalable by keyboard entry to
represent from 0.00 to N pounds per hour. Absolute maximum
range is 0.00 to 10.62 volts.
Maximum Load - 5 mA (2 K Ohms, minimum).
Response Time - Turbine input to Rate Output - 2 seconds,
typical.
Refer to
field wiring
5
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