User Guide

Example 2
This example illustrates a Rate Totaliser with the rate and
totaldisplayshavingdifferentengineeringunits.Totalow
isrequiredinm³witharesolutionof0.1andtheowrate
in litres per Minute with a resolution of 1.
Anoutputpulseisrequiredforeach0.1m³oftotalow.
TheowmeterhasaK-factorof1pulseperlitre.
Summary
Flowmeter K-factor 1 pulse / litre
Required total display 0.0 m³
Required rate display 0 litres / minute
 Pulseoutput  1pulse/0.1litresofow
Rate Totaliser Conguration
Flowmeter K-factor
Factor 1
Eachoutputpulsefromtheowmeterrepresents1litre
therefore no further conversion is required.
Total display
5cale t 1000
dp total 0 . 0
Display is required in m³, therefore 5cale t is set to 1000
as there are 1000 litres in a m³. Total display resolution
of 0.1 m³ is required, hence decimal point is positioned
beforetheleastsignicantdigit.
Rate display
5cale r 1 . 0
dp rate 0
t-ba5e tb-60
Display is required in litres / minute. Each pulse already
represents 1 litre so no further scaling is required and
5cale r is set to 1.0 Rate display resolution of 1 litre
is required, hence decimal point is positioned after the
leastsignicantdisplaydigit where it is not visible .
Selecting a timebase of tb-60 multiplies the rate display
by60toshowtheowrateperminute.
Pulse output
5ource 5caled
divide 1
The Rate Totaliser outputs a pulse each time the least
signicantdigitofthetotaldisplayisincremented.The
leastsignicantdigitofthetotaldisplayrepresents0.1
m³ which is the required output pulse resolution,therefore
no further division is required.
10. Conguration examples
This section contains some examples of Rate Totaliser
congurations requested by BEKA customers.  Step-by-
step instructions are not included nor are non-calibration
congurationfunctions.
Example 1
In this example a user required a BEKA Rate Totaliser to
displaytotalowinGallonswitharesolutionof0.1andthe
owrateinGallonsperMinutewitharesolutionof1.
Anoutputpulseisrequiredforeachgallonoftotalow.
TheowmeterhasaK-factorof10pulsesperGallon.
Summary
Flowmeter K-factor 10 pulses / gallon
Required total display 0.0 gallons
Required rate display 0 gallons / minute
 Pulseoutput  1pulse/1gallonofow
Rate Totaliser Conguration
Flowmeter K-factor
Factor 10 . 0
Converts outputfrom owmeter intoengineering units
gallons.
Total display
5cale t 1 . 0
dp total 0 . 0
Display is required in gallons, therefore 5cale t is set to 1
as Factor has converted pulse input into gallons. Total
display resolution of 0.1 gallons is required, hence decimal
pointispositionedbeforetheleastsignicantdigit.
Rate display
5cale r 1 . 0
dp rate 0
t-ba5e tb-3600
Display is required in gallons, therefore 5cale r is set to 1
as Factor has converted pulse input into gallons. Rate
display resolution of 1 gallon is required, hence decimal
point is positioned after least signicant display digit
where it is not visible.
Selecting a timebase of tb-60 multiplies the rate display
by60toshowowrateperminute.
Pulse output
5ource 5caled
divide 10
The Rate Totaliser outputs a pulse each time the least
signicantdigitofthetotaldisplayisincremented.The
leastsignicantdigitrepresents0.1gallonssothisrate
has to be divided by 10 to produce one output pulse per
gallonoftotalow.
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