Introduction
June 2021
SGN-UM-00282-EN-05
Page 4
MPORTANT
I
Not following instructions properly may impair safety of equipment and/or personnel.
MPORTANT
I
Must be operated by a class 2 power supply suitable for the location.
Electrical Symbols
Function
Direct Current
Caution
Symbol
INTRODUCTION
The K-factor scaler is a field-adjustable frequency divider, which converts the
output signal from a turbine meter or a similar device with a magnetic pickup or
pulse output, to an input compatible with a PLC, RTU, CPU data acquisition card or
similar totalizer device The adjustable frequency divider, referred to as a K-factor,
allows pulses sent from a turbine meter to accumulate into a unit recognizable by
an end device, such as a PLC, for counting and display
The use of different K-factor values allows the device to display in any number of
volumetric measurements such as gallons, cubic meters, liters, barrels and like
units The calibration sheet usually provided with a turbine meter lists a nominal
K-factor tested to a specific volumetric flow rate The K-factor when placed into
the K-factor scaler provides an output pulse for each unit of volume that passes
through the turbine Any units of volume are possible by recalculating the K-factor
with the appropriate conversion factor
In addition, if the K-factor is set to one, the K-factor scaler becomes a preamplifier,
converting the frequency from a low output level turbine meter to the logic level
needed by a PLC or CPU data acquisition card
