Dynasonics TFXL Clamp-On Ultrasonic Flow User Manual download pdf (Page 18)

18 06-TTM-UM-00158 8/2012

For the TFXL this relationship is described by the following

equation. The 60,000 relates to measurement units in

volume/min. Measurement units in seconds, hours or days

would require a di erent numerator.

60,000

K factor

Full Scale Units





EQUATION 3.1  KFACTOR CALCULATION

A practical example would be if the MAX RATE for the appli-

cation were 400 GPM, the K-factor (representing the number

of pulses accumulated needed to equal 1 Gallon) would be:

60,000

150

400

K factor Pulses Per Gallon

GPM

 



If the frequency output is to be used as a totalizing output,

the TFXL and the receiving instrument must have identical

K-factor values programmed into them to ensure that accu-

rate readings are being recorded by the receiving instrument.

Unlike standard mechanical  ow meters such as turbines,

gear or nutating disk meters, the K-factor can be changed by

modifying the MAX RATE  ow rate value.

NOTE: For a full treatment of K-factors please see the

Appendix of this manual.

There are two frequency output types available:

Turbine meter simulation - This option is utilized

when a receiving instrument is capable of interfacing

directly with a turbine  ow meter’s magnetic pickup.

The output is a relatively low voltage AC signal whose

amplitude swings above and below the signal ground

reference. The minimum AC amplitude is approximately

500 mV peak-to-peak. To activate the turbine output

circuit, turn SW1 OFF.

500 mV

p-p

FIGURE 3.5  FREQUENCY OUTPUT WAVEFORM

SIMULATED TURBINE

Square-wave frequency - This option is utilized when

a receiving instrument requires that the pulse voltage

level be either of a higher potential and/or referenced

to DC ground. The output is a TTL square-wave (5V).

FIGURE 3.6  FREQUENCY OUTPUT WAVEFORM

SQUARE WAVE

PART 4  ULTRALINK UTILITY

INTRODUCTION

The ULTRALINK utility is used for con guring, calibrating

and communicating with the TFXL family of  ow meters.

Additionally, it has numerous troubleshooting tools to make

diagnosing and correcting installation problems easier.

This software has been designed to provide the TFXL user

with a powerful and convenient way to con gure calibrate

and troubleshoot all TFXL family  ow meters.

SYSTEM REQUIREMENTS

ULTRALINK requires a PC-type computer, running Windows

98, Windows ME, Windows 2000, Windows NT, Windows XP,

Windows Vista® or Windows® 7 operating systems and an

RS-232 9-pin communications port. (Part # D010-0204-001)

INSTALLATION

1) From the Windows “Start” button, choose the Run

command. From the “Run” dialog box, use the Browse

button to navigate to the ULTRALINK_Setup.exe  le and

double-click.

2) The ULTRALINK Setup will automatically extract and

install on the hard disk. The ULTRALINK icon can then be

copied to the desktop, if desired.

NOTE: If a previous version of this software is installed, it

must be un-installed before a new version of the software

can be installed. Newer versions will “ask” to remove the old

version and perform the task automatically. Older versions

must be removed using the Microsoft Windows® Add/Remove

Programs applet.

NOTE: Most PCs will require a restart after a successful

installation.

INITIALIZATION

1) Connect the 9-pin serial end to an available port on the

PC. Connect the other end to the TFXL.

10 D

FLOW METER MOUNTING ORIENTATION

PC INTERFACE

CABLE

ULTRALINK

PC INTERFACE

CABLE

PC INTERFACE

FIGURE 4.1  PC CONNECTIONS

NOTE: It is advisable to have the TFXL meter powered up prior

to running this software.

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 43 44

Comments to this Manuals

No comments

Dynasonics TFXL Clamp-On Ultrasonic Flow User Manual Page 18

Comments to this Manuals

Related products and manuals for Equipment Dynasonics TFXL Clamp-On Ultrasonic Flow