Dynamic SFC3 Operator's Manual

SFC3

OPERATORS MANUAL

Smart F l o w C o m p uter

Liqui d P u l s e V e r s i on

11 1 0 4 W . A i r p o rt Blvd , S u i t e 1 0 8 & 1 4 8

Staf f o r d , T e x as 77 4 7 7 U S A

(2 81 ) 5 6 5 -1118

Fa x ( 2 8 1 ) 5 6 5 -11 1 9

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WARRANTY

Dynamic Fluid Measurement warrants to the owner of the Flow Computer that the
product delivered will be free from defects in material and workmanship for one (1) year
following the date of purchase.
This warranty does not cover the product if it is damaged in the process of being installed
or damaged by abuse, accident, misuse, neglect, alteration, repair, disaster, or improper
testing.
If the product is found otherwise defective, Dynamic Fluid Measurement will replace or
repair the product at no charge, provided that you deliver the product along with a return
material authorization (RMA) number from Dynamic Fluid Measurement.
Dynamic Fluid Measurement will not assume any shipping charge or be responsible for
product damage due to improper shipping.

THE ABOVE WARRANTY IS IN LIEU OF ANY OTHER WARRANTY EXPRESS
IMPLIED OR STATUTORY. BUT NOT LIMITED TO ANY WARRANTY OF
MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, OR ANY
WARRANTY ARISING OUT OF ANY PROPOSAL, SPECIFICATION, OR SAMPLE.
LIMITATION OF LIABILITY:
DYNAMIC FLUID MEASUREMENT SHALL HAVE NO LIABILITY FOR ANY
INDIRECT OR SPECULATIVE DAMAGES (INCLUDING, WITHOUT LIMITING
THE FOREGOING, CONSEQUENTIAL, INCIDENTAL AND SPECIAL DAMAGES)
ARISING FROM THE USE OF, OR INABILITY TO USE THIS PRODUCT.
WHETHER ARISING OUT OF CONTRACT, OR UNDER ANY WARRANTY,
IRRESPECTIVE OF WHETHER DFM HAS ADVANCED NOTICE OF THE
POSSIBILITY OF ANY SUCH DAMAGE INCLUDING, BUT NOT LIMITED TO
LOSS OF USE, BUSINESS INTERRUPTION, AND LOSS OF PROFITS.
NOTWITHSTANDING THE FOREGOING, DFM’S TOTAL LIABILITY FOR ALL
CLAIMS UNDER THIS AGREEMENT SHALL NOT EXCEED THE PRICE PAID
FOR THE PRODUCT. THESE LIMITATIONS ON POTENTIAL LIABILITY WERE
AN ESSENTIAL ELEMENT IN SETTING THE PRODUCT PRICE. DFM NEITHER
ASSUMES NOR AUTHORIZES ANYONE TO ASSUME FOR IT ANY OTHER
LIABILITIES

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CHAPTER 1: QUICK START.................................................................................................................... 1-1

Introduction: ............................................................................................................................................ 1-1

Technical Data ......................................................................................................................................... 1-2

Parts List .................................................................................................................................................. 1-3

Smart Flow Computer : Dimensions ....................................................................................................... 1-4

Starting and Installing the Software: ....................................................................................................... 1-5

System Minimum Requirements ......................................................................................................... 1-5

Website - DFC Configuration Software .................................................................................................. 1-6

Getting acquainted with the flow computer wiring: ................................................................................ 1-8

Back terminal wiring: .......................................................................................................................... 1-8

Back Panel Jumper .............................................................................................................................. 1-9

Memory Jumper................................................................................................................................. 1-10

INPUT/OUTPUT: Assignment, Ranging, Wiring, and Calibration ................................................. 1-14

Input/Output Assignment .................................................................................................................. 1-14

How to assign a transmitter to an I/O point: ...................................................................................... 1-14

Ranging the Transmitter Inputs: ........................................................................................................ 1-14

WIRING: ............................................................................................................................................... 1-16

Wiring the analog inputs: .................................................................................................................. 1-16

Wiring the Analog Inputs 1-4 : .......................................................................................................... 1-17

RTD Wiring ....................................................................................................................................... 1-18

Wiring Analog Output: ...................................................................................................................... 1-19

Turbine input wiring .......................................................................................................................... 1-20

Turbine input wiring for passive (dry contact) pulse generators ....................................................... 1-23

Density input wiring: ......................................................................................................................... 1-24

RS-232 Connection ........................................................................................................................... 1-25

RS-485 Connection ........................................................................................................................... 1-26

Wiring of Status Inputs: ..................................................................................................................... 1-27

Wiring of Switch/Pulse Outputs: ....................................................................................................... 1-28

I/O Expansion: ................................................................................................................................... 1-29

Wiring of Brooks Prover ................................................................................................................... 1-32

Wiring of Calibron Prover ................................................................................................................. 1-33

CALIBRATION ................................................................ ................................................................ .... 1-34

Analog Input 4-20mA or 1-5 volt signal: .......................................................................................... 1-34

RTD calibration: ................................................................................................................................ 1-35

Calibration of analog output: ............................................................................................................. 1-36

Multi-Variable Transmitters (Model 205)- DP and Pressure ............................................................ 1-36

Multi-Variable Transmitters (Model 205)- RTD ............................................................................... 1-37

Verifying Digital Inputs and Outputs .................................................................................................... 1-38

Pulse Interpolation: ................................................................................................................................ 1-39

Double Chronometry: ................................................................................................ ............................ 1-39

Calculations and Terminology: ............................................................................................................. 1-40

Liquid pulse units .............................................................................................................................. 1-40

Terms ................................................................................................................................................. 1-40

CHAPTER 2: Data Entry ............................................................................................................................ 2-1

Introduction to the Smart Flow Computer Software................................................................................ 2-1

Introduction to the Flow Computer Software ......................................................................................... 2-1

ABOUT ................................................................................................................................................... 2-1

FILE ........................................................................................................................................................ 2-2

Open a File .......................................................................................................................................... 2-2

Open a New File .................................................................................................................................. 2-2

Delete a File ......................................................................................................................................... 2-2

Load File.............................................................................................................................................. 2-3

View File ............................................................................................................................................. 2-3

Save As ................................................................................................................................................ 2-3

Save ..................................................................................................................................................... 2-4

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Save and Exit ....................................................................................................................................... 2-4

Exit ...................................................................................................................................................... 2-4

PORT ....................................................................................................................................................... 2-5

PC Communication Set Up.................................................................................................................. 2-5

Flow Computer Communication Set Up ............................................................................................. 2-6

Dial ...................................................................................................................................................... 2-7

Phone Book ......................................................................................................................................... 2-8

Modem Setup ...................................................................................................................................... 2-8

Hang-up Phone .................................................................................................................................... 2-8

DIAG ....................................................................................................................................................... 2-9

Read Single Flow Computer Communication Setup ........................................................................... 2-9

Diagnostic Data ................................................................................................................................... 2-9

PROVER ............................................................................................................................................... 2-10

Prove Request .................................................................................................................................... 2-10

Prover Temperature Override ............................................................................................................ 2-10

Prover Pressure Override ................................................................................................................... 2-10

Prover Gravity Override .................................................................................................................... 2-10

Prover Shaft Temperature Override ................................................................................................... 2-10

CTL or CPL Override ........................................................................................................................ 2-10

Prove Data ......................................................................................................................................... 2-10

Prover Diagram ................................................................................................................................. 2-14

Previous Prove Report ................................................................ ................................ ....................... 2-14

Single Prove Report ........................................................................................................................... 2-14

Prove Abort Report ............................................................................................................................ 2-14

METER ................................................................................................................................................. 2-15

Batch and Stream Data ...................................................................................................................... 2-15

METER DATA ................................................................................................................................. 2-16

PRODUCT DATA ............................................................................................................................ 2-19

OTHER PARAMETERS ...................................................................................................................... 2-20

Day Start Hour (0-23) ........................................................................................................................ 2-20

Company Name ................................................................................................................................ . 2-20

Flow Rate Average Second ............................................................................................................... 2-20

Old Table Gravity Unit ...................................................................................................................... 2-20

Disable Alarms .................................................................................................................................. 2-20

Print Intervals in Minutes .................................................................................................................. 2-20

GM/CC Conversion Factor ................................................................................................................ 2-20

Weight of H2O in Vac @60 Deg.F ................................................................................................... 2-20

Atmospheric Pressure ................................................................................................ ........................ 2-20

Pulse Output Width ........................................................................................................................... 2-20

Date and Time ................................................................................................................................... 2-20

End Batch .......................................................................................................................................... 2-20

Overrides: .......................................................................................................................................... 2-20

Security Code .................................................................................................................................... 2-21

INPUT/OUTPUT .................................................................................................................................. 2-22

Transducer Input Assignment ............................................................................................................ 2-22

Transducer Override .......................................................................................................................... 2-22

Calibration ................................................................ ................................................................ ......... 2-22

Status Input Assignment .................................................................................................................... 2-23

Switch Output Assignment ................................................................................................................ 2-26

Pulse Output and Pulse Output Width ............................................................................................... 2-26

Analog Output Assignment ............................................................................................................... 2-30

Flow Computer Display Assignment ................................................................................................. 2-32

Modbus Shift ..................................................................................................................................... 2-34

REPORTS ............................................................................................................................................. 2-35

Current Data - Snapshot Totalizer Updates ....................................................................................... 2-35

Previous Batch Data .......................................................................................................................... 2-35

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Previous Hourly Data ........................................................................................................................ 2-35

Previous Daily Data ........................................................................................................................... 2-35

Previous Alarm Data ......................................................................................................................... 2-35

Audit Trail Report ............................................................................................................................. 2-36

Build User Report .............................................................................................................................. 2-36

View User Report .............................................................................................................................. 2-36

Formatted Ticket Report .................................................................................................................... 2-36

Auto Data Retrieval ........................................................................................................................... 2-36

WIRING ................................................................................................................................................ 2-37

PRINT ................................................................................................................................................... 2-38

Print "Help" File ................................................................................................................................ 2-38

Print Modbus Registers ..................................................................................................................... 2-38

Print Schematic .................................................................................................................................. 2-38

Print Calibration Data ........................................................................................................................ 2-38

Print Files .......................................................................................................................................... 2-38

CHAPTER 3: Flow Equations ..................................................................................................................... 3-1

FLOWRATES ......................................................................................................................................... 3-1

Mass Flowrate (MASS) ....................................................................................................................... 3-1

PROVE EQUATION .............................................................................................................................. 3-3

DENSITY EQUATIONS ........................................................................................................................ 3-6

Sarasota Density GM/CC .................................................................................................................... 3-6

UGC Density GM/CC ......................................................................................................................... 3-7

Solartron Density GM/CC ................................................................................................................... 3-8

CHAPTER 4: MODBUS DATA ................................................................................................................. 4-1

MODBUS PROTOCOL .......................................................................................................................... 4-1

TRANSMISSION MODE ................................................................................................................... 4-1

ASCII FRAMING ............................................................................................................................... 4-1

RTU FRAMING .................................................................................................................................. 4-1

FUNCTION CODE ............................................................................................................................. 4-2

ERROR CHECK ................................................................................................................................. 4-2

EXCEPTION RESPONSE .................................................................................................................. 4-2

BROADCAST COMMAND ............................................................................................................... 4-2

MODBUS EXAMPLES ...................................................................................................................... 4-3

FUNCTION CODE 03 (Read Single or Multiple Register Points) ..................................................... 4-3

Scaled Data Area (N: 1-meter1, 2-meter2, … 6-meter6) ................................................................... 4-13

Stream Data Area (N=: 1=Stream #1, 2=Stream#2, 3=Stream#3) .................................................... 4-14

Last Batch/Daily/Hourly Data Area .................................................................................................. 4-21

Stream Data Area - Last Batch/Daily/Hourly Data Area ................................................................... 4-22

Stream Data Area (N=: 1=Stream #1, 2=Stream#2, 3=Stream#3) .................................................... 4-24

Last Prove Data Area ......................................................................................................................... 4-27

Current Prove Data Area ................................................................................................................... 4-32

Last Single Prove Report Data Area .................................................................................................. 4-33

Last Abort Prove Report Data Area................................ ................................................................ ... 4-34

Alarms and Status Codes ................................................................................................................... 4-37

Previous Audit Data Area: ................................................................................................................. 4-39

CURRENT ALARM STATUS ......................................................................................................... 4-43

FLOATING POINT DATA AREA................................................................................................ ... 4-46

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CHAPTER 1: QUICK START

Introduction:

A good flow computer must be:

 User friendly
 Flexible
 Easy to understand and configure
 Rugged
 Economical to install and maintain
 Accurate

The model SFC332 Smart Flow Computer incorporates all these features. We hope that your experience
with the Smart Flow Computer will be a very pleasant and friendly experience and not intimidating in any
way.
General Description: The SFC332 is a dual meter run bi-directional flow computer for the measurement
of liquid products. Twelve days of previous daily data, twelve previous batch data, and twelve previous
hourly data are stored in the full format type reports. The previous 50 audit trail reports and 50 alarm
reports are stored. User formatted reports and user formatted ticket reports are available. Sixteen different
product files are user-configurable with easy switch feature and product scheduling for batch operation.
Inputs/Outputs: 2 serial connections, RS-232 and RS-485, both of them Modbus ready. The RS-232 can
also be used with serial printer. Inputs: two 4 wire RTD; 4 single ended analog inputs; , 4 status inputs;
and density frequency. Outputs: 2 pulse/switch outputs; 3 switch outputs; and 2 analog outputs.
Programmable plasma display.

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POWER

VOLTAGE RANGE

12-30 VDC

WATTAGE

4 WATT

OPERATING CONDITIONS

TEMPERATURE

- 40 TO 185 °F

HUMIDITY

100%

HOUSING

NEMA 4X CLASS 1 DIV. 1

FEATURES

DISPLAY

PLASMA 2 LINES 16 CHARACTER

PROCESSOR

32-BIT MOTOROLA 168332 @ 16.7 MHz

FLASH ROM

4 MB @ 70 NANO SECONDS

ROM

2 MB @ 30 NANO SECONDS

FREQUENCY INPUT

3 CHANNELS
0 - 5000 Hz
>70 mV FOR SIN WAVE
> 6 VOLTS FOR SQUARE WAVE

ANALOG INPUT

FOUR 24-BIT CHANNEL

RTD INPUTS

2 CHANNELS 4 WIRES

ANALOG OUTPUT

2 CHANNELS 12 BIT SINGLE ENDED

DIGITAL OUTPUT

OUTPUTS 1 & 2 PULSE/SWITCH 0.5 AMPS RATING
OUTPUTS 3 TO 5 ARE SWITCH OUTPUTS 0.25 AMPS
RATING

STATUS INPUTS

4 ON/OFF TYPE SIGNAL

ALL INPUTS AND OUTPUTS ARE OPTICALLY ISOLATED

SERIAL

1 RS485 @ 9600 BAUDS VARIABLE
1 RS232 @ 9600 BAUDS VARIABLE

COMMUNICATION PROTOCOL

MODBUS

Technical Data

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Part

Description

332-01P

Controller (CPU) Board for SFC332/1000 w/prover option.

332-02

Terminal (BP) Board for SFC332/1000.

332-03

Analog Board for SFC332/1000.

332-04

Display (LCD) for SFC332/1000.

332-05

Rosemount Interface Board for SFC1000.

332-06

Prover Option for SFC332/1000.

332-07

Enclosure for SFC332/1000.

332-08

Mounting Bracket w/captive screws for SFC332/1000 Boards.

332-09

Adapter between SFC1000 and Rosemount 205.

332-10

Center portion of housing for SFC332/1000 enclosure.

332-11

Glass Dome Cover for SFC332/1000 Enclosure.

332-12

Blank Dome Cover for SFC332/1000 Enclosure.

332-13

O'ring for SFC332 Enclosure.

332-14

External I/O Expansion.

332-15

Battery Replacement for SFC332/1000.

332-16

1/2 Amp 250V Fuse for SFC332/1000.

332-17

EPROM for SFC332/1000 (set of two).

RS232

External RS232 Connection for all models.

Parts List

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Smart Flow Computer : Dimensions

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Starting and Installing the Software:

First make sure your computer has the minimum requirements to install Dynamic’s Dynacom software.

System Minimum Requirements

In order to install this software product the following requirements must be met:

 Windows Operating System (Win95, Win98, Win98SE, win2000, WinNT, WinXP, Vista,

Windows 7, Windows 8, Windows 10)

 For Windows NT, 2000, XP or Vista: Administrator level access to create an ODBC system DNS.
 Minimum disk space available: 16 MB.
 1 Serial Communication Port

If your computer meets these requirements, you can run the setup file downloaded from our website

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Website - DFC Configuration Software

Step 1. Go to our website WWW.DYNAMICFLOWCOMPUTERS.COM

Step 2. Click on the “Downloads”

Step 3. Select either Windows or

DOS software based on Step 2.

Step 4. On the new screen
presented to you click on the
application that you are trying to
download. Once you hit the link it
will ask you if you want to run or
save the file in your computer.
Select SAVE. (See illustration 1)

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Step 5. The file will start to
transfer to your computer. The
download time depends on your
Internet connection speed and the
type of application that being
downloaded.

Step 6. When the download if
finish. Press the OPEN button to
start the setup process. (See
Illustration)

Step 7. Follow the steps in the
application setup.

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Getting acquainted with the flow computer
wiring:

To wire the flow computer, get familiar with the drawings provided in the software’s Wiring menu. Use
the arrow left and right keys to move to and select Wiring, then press ENTER.

Back terminal wiring:

The back terminal wiring indicates the overall positions of the terminal plugs and their functions. Though

the back panel’s jumpers are also shown, refer to the next drawing, “Back Panel Jumpers”, for information

on their settings and functions.
The Smart Flow Computer receives its power via the two topmost pins on Terminal P1, on the left of the
terminal board. Also on Terminal P1 are, from top to bottom, inputs from the two turbines and the RS-485
serial connection.
To the right (P4), from top to bottom, is status input 1, density frequency input, and switch output 1 and 2.
Terminal P3, at the lower bottom, handles analog inputs and outputs. These are, in order from right to left,
analog inputs 1-4 and analog outputs 1 and 2.
Terminal P5, top middle, is the RTD terminal block, "100  platinum RTD input".

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Back Panel Jumper

In this illustration, a jumper is “ON” when the jumper block is used to connect the jumper’s to wire prongs.

“OFF” means the jumper block is completely removed or attached to only one of the two wire prongs.

Note: R11 and R3 could have a vertical orientation instead of a

horizontal orientation on certain Smart Flow Computer models.

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Memory Jumper

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Steps to clear memory through removing the memory jumper

(1) Turn off the power, move the jumper to the next two pins, wait for 5 seconds

(2) Put the jumper back

Memory cleared and Flow Computer ID is set to 1, 9600 baud rate, RTU mode

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INPUT/OUTPUT: Assignment, Ranging, Wiring, and Calibration
Input/Output Assignment

We will now configure your Smart Flow Computer’s inputs and outputs. The flow computer allows the

user to configure the inputs and outputs. i.e. Analog #1 is pressure for Meter #1. Unassigned inputs are not
used by the flow computer.

How to assign a transmitter to an I/O point:

Before beginning the procedure of assigning inputs and outputs, it is advisable to set up the meter (Meter
| Set Up). This is because certain parameters on the Transducer Input Assignment page
change (or may not appear, etc.) based on Meter | Set Up.

1 Use your arrow keys to scroll to menu item I/O (between Meter and Report). Its first

entry is Transducer Input Assignment. Press <ENTER>.

2. Use the down/up arrow key to scroll through this menu. The first four parameters are used to
set the number of decimals you would like to see in your live inputs (these numbers do not
affect the precision of your calculated data). Spare inputs are inputs that the flow computer
will read and display in the diagnostic data but are not used in the calculations. Spare inputs
high and low limit alarms are documented in the historical alarm report.

3. After the parameters used for setting the number of decimals come a series of parameters
ending with the words Assignment (1-n). Assignments 1-4 are analog

inputs attached to terminal P3 of the back panel. These

inputs accept 4-20mA or 1-5 volts input and are suitable for temperature, pressure,

density, BS&W, or spare inputs. Assignments 5 and 6 are strictly RTD (temperature) inputs
only for the meter, prover, densitometer or spare; temperatures are inputted via terminal P5
on the back panel. Assignment 7 indicates a density frequency input; it is assigned
automatically once you choose live density frequency input in the setup menu at density type
selection (and it can only be assigned via Meter | Set Up | Density #n, where n = 1 to

4). Assignment 10 (module 1) and assignment 11 (module 2) are used for Rosemount multi­variable module only. DP, pressure, and temperature for the meter can be assigned.

Ranging the Transmitter Inputs:

1. Enter the range values: after assigning the inputs scroll down the transducer inputs
assignment menu to scale the 4-20mA. Enter the value at …@4mA and …@20mA. Enter both
values similar to the way the transmitter is ranged. 1-5 volts is equivalent to 4-20mA. Enter
the 1 volt value at the 4mA, and 5 volt value at 20mA.

2. Enter the high and low limits: high limits and low limits are simply the alarm points in
which you would like the flow computer to flag as an alarm condition. Enter these values
with respect to the upper and lower range conditions. Try to avoid creating alarm log when
conditions are normal. For example: If the line condition for the pressure is between 0 to 500
PSIG. then you should program less than zero for low pressure alarm, and 500 or more for
high pressure alarm. High and low limits are also used in the scale for the Modbus variables.

3. Set up the fail code: Maintenance and Failure Code values tell the flow computer
to use a default value in the event the transmitter fails. The default value is stored in
Maintenance. There are three outcomes: the transmitter value is always used, no matter
what (Failure Code = 0); the Maintenance value is always used, no matter what
(Failure Code = 1); and the Maintenance value is used only when the transmitter’s
value indicates that the transmitter has temporarily failed (Failure Code = 2).

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RTD inputs will skip 4-20mA assignments because RTD is a raw signal of 50 (ohms) to 156. Readings
beyond that range require a 4-20mA signal to the flow computer.
Density coefficients for raw frequency inputs are programmed in this menu. The menu will only show
parameters relevant to the live density selected (i.e., Solartron or UGC, etc.).

NOTE: Solartron density input requires values in US units, i.e. PSI, and



F. Request a calibration sheet in US units from the densitometer

manufacturer.

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WIRING:

Wiring to the flow computer is very straightforward and simple. But still it is very important to get familiar
with the wiring diagram.

Wiring the analog inputs:

Use your arrow keys to move the cursor to the menu item Wiring and then use up/down arrow keys to
select Analog Wiring. Press <ENTER>. Typical wiring for analog inputs 1 and 2 are shown in the
drawing. Analog inputs 3 and 4 are to the left of analog 1 and 2. Note that the analog input has only one

common return, which is the -ve signal of power supply powering the transmitters.
When wiring 1-5 volts, make sure to calibrate the flow computer for the 1-5 volt signal because the flow
computer calibration defaults for the 4-20mA, which is different from the 1-5 volts. JP5 must be cut for 1­5 volt inputs. The jumpers for analog 1-4 are in order from right to left. It is possible to cut the first two
jumpers for analog 1 & 2 in for 1-5 volts signal and have analog in 3 & 4 as 4-20mA signal. Signal line
impedance provided by our flow computer is less than 250. Therefore, when using a smart transmitter
that requires a minimum of 250 resistance in the loop, an additional resistor at the flow computer end
needs to be installed in series with the 4-20mA loop in order to allow the hand held communicator to talk to
the transmitter.

NOTE: The 4-20mA or 1-5 volt DOES NOT source power to the transmitters. You can use

the DC power feeding the flow computer to power the 4-20mA loop IF that power
supply is FILTERED.

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Wiring the Analog Inputs 1-4 :

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RTD Wiring

When ‘Flow Computer’ is configured as 4 analog inputs and 2 RTD inputs, go to the wiring menu where it

says RTD and press <ENTER>. The flow computer shows wiring to RTD 1 and RTD 2. 100 platinum
can be used; a temperature range of -43F to +300F can be measured. RTD 1 is to the right where P5

designation is. In the figure below notice that each side of the RTD requires two wire connections. When
using less than 4 wires a jumper must be used to make up for the missing lead. Internal excitation current
source generated is approximately 7mA. .

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Wiring Analog Output:

The analog outputs are located on the left side of P3 connector. Go to the wiring diagram and scroll down
to Analog Output and press <ENTER>. Wiring diagram shows typical Analog output wiring. Notice
that analog output will regulate 4-20mA current loop but DOES NOT source the power for it. External
power is required.

ASS IGNING/RANGING THE 4-20MA AN ALOG OUT PUTS :

Go to the I/O assignment main menu and scroll to Analog Output Assignment. Press
<ENTER>. A selection menu is prompted. Select the analog output number and then enter what the 4mA
output will indicate and the 20mA. Make sure that the 20mA assignment value exceeds the upper range

limit of what you assigned the Analog output for, otherwise the analog output will not update beyond
20mA.

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Turbine input wiring

Scroll to Turbine under Wiring and press <ENTER>. Two drawings above each other will show
typical wiring for turbine meter 1 and turbine meter 2. When dual pick ups from the same turbine are
connected, use the inputs for turbine 1 for pickup 1 and turbine 2 for the second pickup coil. When
connecting sine wave directly from the pickup coil make sure the distance from the pickup coil to the flow
computer is very short--less than 50 feet with shielded cable. In the event there is presence of noise, the
distance must be shortened. When connecting sine wave signal, the R11 jumper for meter 1 must be
installed and R3 jumper for meter 2 must be installed. (JP3 and JP2 must be off when using sine wave).
On the other hand, when using square wave, the square wave signal can be sinusoidal but has to be above 5
volts peak to peak with less than 0.4 volts offset in order for the flow computer to read it. R11 and R3 must
be off and JP3 on for meter 1; JP2 must be on for meter 2.

Note: When connecting square wave input, the JP3 and JP2 connect the turbine return to the

flow computer power return. Therefore, signal polarity is very important. Reverse polarity
could result in some damage or power loss. When sine wave is used the signal polarity is
usually of no significance.

The turbine input is immediately under the power input on terminal P1. The third pin down from the top is
Turbine/PD "minus", and below it is Turbine plus. The second pulse input for Turbine/PD meter 2 or the
second pickup coil is below turbine one input on P1. The fifth pin down from the top is turbine 2 "minus"
signal and below it is Turbine/PD 2 plus signal.

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TUR BINE- SINE WAVE

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TUR BINE-SQUARE WAVE

Note: R11 and R3 are oriented vertically in some flow computers.

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Turbine input wiring for passive (dry contact) pulse generators

Some mass flow meters have pulse outputs that do not provide power but instead require
external power, they are referred to as passive outputs, dry outputs, open collector, etc. (For
example the Krohne UFM 3030 Mass meter).

In these cases the wiring should be as shown on the below diagram. The pull up resistor can be
adjusted to limit the current sink by the Mass meter. For Turbine Input 1 JP3 must be ON and
R11 OFF and if using Turbine Input 2 then JP2 must be ON and R3 OFF.

Date: 8/1/2019

Dynamic Fluid Measurement SFC3 Liquid Pulse Manual Quick Start — 1-24

Density input wiring:

When using a live densitometer input with frequency signal, the signal can be brought into the Smart Flow
Computer in its raw form. The Smart Flow Computer accepts a sine wave or square with or without DC
offset. Example for density wiring can be seen in the wiring diagram. Use the arrow keys to get to

Wiring | Density and press ENTER. Find two drawings, one with barrier and the other without.

Barriers are used for area classification. Notice that the RTD wiring is also drawn to show how to hook the
density RTD signal.

Note: When wiring the density input polarity is of significance and

reverse polarity could result in some damage or power loss. The
density signal is on connector P4, the third and fourth pin down
from the top. The third pin down is density plus, the fourth down is
density minus. When Density input is 4-20mA it should be
connected as a regular 4-20mA signal to the analog input and not
the density frequency input.

Date: 8/1/2019

Dynamic Fluid Measurement SFC3 Liquid Pulse Manual Quick Start — 1-25

RS-232 Connection

The RS-232 is not located on the terminal board. The RS-232 is a green 5 pin terminal block with screw
type connector located on the display side of the enclosure. Scroll to Wiring | New RS-232 and press
ENTER. Termination jumpers for the RS-232 are located at the top corner of the board on the same side of
the RS-232 connector. The two jumpers at the top are for terminating the transmit line and below it is the
receive line.
The RS-232 port can be used for printing reports, Modbus communication, or interfacing to the
configuration program. If the port is configured as printer port in the flow computer communication setup,
then reports get printed (i.e. interval and daily reports).

Note: Twisted shielded cable is required.

WARNING: When the RS-232 terminal is used with a modem, external

protection on the phone line is required.

Date: 8/1/2019