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10 

Getting Started

Displaying Live Data

Main Display

The 

main display

 has these primary functions:

• 

Displaying live temperature, pressure, and flow data

• 

Accessing the 

main menu

 (

MENU

) or the optional totalizer (

NEXT

) (

page 11

)

• 

Taring the flow measurement (

page 10

)

This screen displays live data for all flow parameters simultaneously. Live data is measured 

1000 times per second and the LCD display is updated 10 times per second. The button 

next to the measurements highlight their values in the center.

Taring Your Flow Meter

MENU 

 TARE FLOW 

or

 TARES

Taring ensures your flow meter provides its most accurate measurements. This function 

gives the flow meter a zero reference for flow measurements. For meters with a barometer, 

the absolute pressure reading can also be tared when the device is exposed to the local 

barometric pressure. 

How to Tare

Taring Flow

MENU 

 TARES 

 TARE FLOW

Flow tares should take place at the expected process pressure, with no flow. A message, 

"

ENSURE NO FLOW BEFORE PRESSING TARE

" will be displayed. Press 

TARE

 to complete the 

taring process.

Optional: Taring Pressure

MENU 

 TARES 

 TARE PRESS

Absolute pressure tares require an optional barometer, and the meter open to atmosphere. 

A message, "

PRESS

 

TARE

 

WHEN

 

VENTED

 

TO

 

AMBIENT

 

WITH

 

NO

 

FLOW

". The offset between the 

absolute pressure sensor in the flow body and the internal barometer will also be displayed.

When to Tare

• 

Before every new flow measurement cycle

• 

After significant changes in temperature or pressure

• 

After dropping or bumping the flow meter

• 

After changing the device’s orientation

Tare mass flow by selecting 

TARES

 from the 

main menu

.

The 

tare confirmation screen

.

The 

main display

.

Summary of Contents for FMA-1600A Series

Page 1: ...M Ma as ss s F Fl lo ow w M Me et te er rs s e mail info omega com For latest product manuals www omegamanual info TM Shop online at omega com User sGuide F FM MA A 1 16 60 00 0A A S Se er ri ie es s...

Page 2: ...cations without notice Servicing North America U S A Omega Engineering Inc Headquarters 800 Connecticut Ave Suite 5N01 Norwalk CT 06854 Toll Free 1 800 826 6342 USA Canada only Customer Service 1 800...

Page 3: ...klight page 17 Change your STP standard temperature and pressure to match any standard temperature and pressure reference page 15 Connection to a computer for control and data logging to capture all p...

Page 4: ...Reference Values 15 Flow and Pressure Averaging 15 Zero Band 15 Configuring Serial Communications 16 Unit ID 16 Modbus RTU Address 16 Baud Rate 16 Display Setup 17 Main Screen Options 17 Screen Lighti...

Page 5: ...nts a typical configuration of a standard mass flow meter Your device s appearance and process connections may differ See page 12 for more examples Backlight The monochrome display comes equipped with...

Page 6: ...cked MOV Mass flow over range of device OVR Totalizer rolled over to zero POV Pressure over range of device TMF Totalizer missed out of range flow TOV Temperature over range of device VOV Volumetric f...

Page 7: ...ream Connecting Your Gas Flow Meter Your flow meter can measure flow generated by positive pressure and or suction Connect the meter so that the flow travels in the same direction as the flow arrow us...

Page 8: ...o your meter through either the power jack or the multi pin connector on top of your device Note Power requirements vary based on analog configuration and valve type Please reference the associated sp...

Page 9: ...will resume when the switch is released You can also tare with the front controls page 6 or serial commands page 18 This should only be done in a true zero flow condition Option Second Analog Output...

Page 10: ...olute pressure reading can also be tared when the device is exposed to the local barometric pressure How to Tare Taring Flow MENU TARES TARE FLOW Flow tares should take place at the expected process p...

Page 11: ...the instrument since its last reset similar to a gasoline pump TOTAL TIMER toggles between totalized flow and elapsed time as the highlighted parameter in the center SLPM or another measurement of mas...

Page 12: ...he device SW Firmware version Display SW color displays only Firmware version of the display Device Full Scale Ranges ABOUT Full Scale Ranges This displays the maximum calibrated range of available fl...

Page 13: ...Mixes SETUP Active Gas COMPOSER Mixes To provide accurate measurements your flow meter needs to reference the viscosity of the gas you are flowing through it The closer you can get to defining your ac...

Page 14: ...gas COMPOSER can change the gas percentage to fill the remaining portion to 100 by selecting the component gas then selecting Set to Balance Once the gases total 100 the mixture can be saved be select...

Page 15: ...for STP and NTP calculations Unless otherwise requested your flow meter ships with a default STP of 25 C and 1 atm which affects flow units beginning with S and an NTP of 0 C and 1 atm which affects f...

Page 16: ...n you select SET If you select as the Unit ID the flow meter will enter streaming mode when you exit the menu page 19 Modbus RTU Address SETUP RS 232 Serial or RS 485 Serial Modbus Address The Modbus...

Page 17: ...o adjust the brightness level and move the brightness indicator left or right Display Rotation SETUP Display Display Rotation The device has the option of inverting flipping the screen upside down as...

Page 18: ...ings Baud 19200 by default others can be used if the computer computer software and the meter are all set to the same rate Data bits 8 Parity none Stop bits 1 Flow control none Communication Programs...

Page 19: ...The default streaming interval is 50 ms but this can be increased by changing Register 91 while the device is in polling mode Set streaming interval unit ID w91 number of ms Example aw91 500 streams...

Page 20: ...or hyphen only This is equivalent to the short name when creating a mix via the front panel page 14 Mix Number Choose a number from 236 to 255 If a user mix with that number already exists it will be...

Page 21: ...live data frame unit ID Begin streaming data unit ID Stop streaming data desired unit ID Set streaming interval unit ID w91 of ms Query gas list info unit ID g Choose a different gas unit ID g Gas Num...

Page 22: ...s out keep using it but tell us about the drop at your next annual recalibration so we can check it out for you Issue How can I see readings in different units Action From the main menu select SETUP S...

Page 23: ...Make sure the COM number matches the one your software is using to connect to the flow meter 5 On the external serial communications device computer PLC etc be sure that the flow control handshaking...

Page 24: ...per minute count count count Setpoint count 0 64000 Percent of full scale Pressure Units Absolute or Barometric Gauge Notes PaA PaG Pascal hPaA hPaG Hectopascal kPaA kPaG Kilopascal MPaA MPaG Megapasc...

Page 25: ...30M 30 CH4 70 CO2 151 Bio35M 35 CH4 65 CO2 152 Bio40M 40 CH4 60 CO2 153 Bio45M 45 CH4 55 CO2 154 Bio50M 50 CH4 50 CO2 155 Bio55M 55 CH4 45 CO2 156 Bio60M 60 CH4 40 CO2 157 Bio65M 65 CH4 35 CO2 158 Bio...

Page 26: ...N2 1 0 Ar 10 O2 9 5 CO2 79 5 N2 1 0 Ar 13 O2 7 0 CO2 79 N2 1 0 Ar Laser Gas Mixes 4 5 CO2 13 5 N2 82 He 6 0 CO2 14 N2 80 He 7 0 CO2 14 N2 79 He 9 0 CO2 15 N2 76 He 9 4 CO2 19 25 N2 71 35 He 9 0 Ne 91...

Page 27: ...Optional 1 5 Vdc or 0 10 Vdc output signal 7 Power In 8 Ground common for power digital communications analog signals and alarms Warning Do not connect power to pins 1 through 6 as permanent damage c...

Page 28: ...d NC NC Ground Ground 2 Analog Out Analog Out Analog Out RX or A Analog Out NC Analog Out 3 Ground Analog In NC NC NC NC NC 4 NC Ground NC NC NC Analog Out NC 5 Power In Ground Power In Ground Ground...

Page 29: ...tional RS 485 A 4 Remote tare ground to tare Remote tare ground to tare 5 Serial RS 232 TX signal Optional RS 485 B Serial RS 232 TX Signal Optional RS 485 B 6 Static 5 12 Vdc Optional Secondary analo...

Page 30: ......

Page 31: ...A if the unit is found to be defective it will be repaired or replaced at no charge OMEGA s WARRANTY does not apply to defects resulting from any action of the purchaser including but not limited to m...

Page 32: ...s M U Turbine Paddlewheel Systems M U Totalizers Batch Controllers pH CONDUCTIVITY M U pH Electrodes Testers Accessories M U Benchtop Laboratory Meters M U Controllers Calibrators Simulators Pumps M U...

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