Technical data

Configure frequency outputs
The Frequency Outputs allows you to configure the available frequency outputs for the
meter. If you previously configured one or more Frequency/Digital outputs make
selections for the following parameters.
Content
• Valid outputs are based on Uncorrected (Actual) flow rates or on Corrected
(Standard) flow rates. If pressure or temperature is set to Not used on the Daniel
MeterLink Startup Page, the Corrected (Standard) option will not be available.
Direction
• Reverse: The output only reports flow in the reverse direction. For frequency
outputs, Phase B of the output is 90 degrees out of phase with Phase A.
• Forward: The output only reports flow in the forward direction. For frequency
outputs, Phase B of the output is 90 degrees out of phase with Phase A.
• Absolute: The output reports flow in both directions. For frequency outputs, Phase B
of the output is 90 degrees out of phase with Phase A.
• Bidirectional: The output reports flow on Phase A only in the forward direction and
on Phase B only in the reverse direction
Maximum frequency output
• Select the maximum frequency for the frequency outputs. Valid options are 1000 Hz
and 5000 Hz. This property is disabled if Frequency outputs was cleared on the
Startup Page. The frequency outputs will over range up to 7500 Hz.
The following fields are used to configure the frequency outputs selected to output a
volumetric flow rate. The fields are only enabled if the associated output’s Content is set to
Uncorrected (Actual) or Corrected (Standard).
• Full scale volumetric flow rate used with output - Enter the flow rate to be equivalent
to the maximum frequency of the frequency output. This property is disabled if
Frequency outputs was cleared on the Startup Page.
• K-factor - A read-only value showing the calculated K-factor from the Full scale
volumetric flow rate used with frequency outputs and the Maximum frequency for
frequency output. This property is disabled if Frequency outputs was cleared on the
Startup Page.
• Vol/pulse - A read-only value showing the calculated inverse of the K-factor. This
property is disabled if Frequency outputs was cleared on the Startup Page.
• Velocity -
- Maximum scale velocity used with output: Enter the velocity to be equivalent to
the maximum frequency of the frequency output. These values are only enabled
if the Content is set to Average flow velocity or Average sound velocity. This
property is disabled if Frequency outputs was cleared on the Startup Page.
Daniel Liquid Ultrasonic Flow Meters calibration and configuration parameters
Operations 47