Hardware manual

Chapter 2 - TeleFlow Standard ACCOL Load
TeleFlow™ 2-5 Standard ACCOL Load
When Sampler output is enabled:
DO 1 - Pulse output based on volume (to drive an external totalizer or sampler).
DO 2 - general-purpose output.
Sampler logic has a default volume of 100 mscf and a default pulse width of 1
second.
Flow control has priority for the discrete outputs so that if both Sampler output and
Flow control are enabled, Sampler will be shut off and Flow control will use the
outputs.
Auxiliary Analog Input
This input is scaled for 1 to 5 volts, but up to 16 volts can be applied; it can be used
as an alarm or monitoring input. Signals are provided that allow this input to be
scaled into other units. Voltages higher than 5 volts are scaled accordingly, i.e. 10
volts=200%, 15 volts=300%, etc.
The default scaling is:
Zero = 0.0 % (1 volt input)
Full scale = 100.0 % (5 volts input)
Default alarm limits are:
Low 10%
High 100%
Lo-lo 0%
Hi-hi 150%
LDb 3%
HDb 10%
This input is updated once each calculation interval.
Pulse Input
This input accepts pulses at rates up to 5,000 Hz and keeps a running pulse total
and frequency value. A scaling factor can be configured to convert pulses into other
units i.e., if each pulse is the equivalent of 5 gallons a scaling factor of 5 makes the
total be in gallon units. The frequency and total can be read in 'raw' units (counts
and Hertz) and also in scaled units. Default pulse scaling factor is 1.0.