text.skipToContent text.skipToNavigation

Mass and Volumetric Flow Meters


Item# FMA-1607A

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $1,504.00
5-9 $1,428.80
10-24 $1,398.72
25-49 $1,338.56
50-99 $1,308.48
100+ $1,278.40

In stock

Lead Time (If not in stock): 2 weeks
Mass and Volumetric Flow Meters FMA-1607A FMA-1607A
  • Ranges of 0 to 0.5 SCCM Up to 0 to 3000 SLM
  • <10ms Response Time—Field Adjustable
  • 130+ Gas Calibrations with Every Unit: Air, Ar, CH4, CO, CO2, Ethane, H2, He, N2, N2O, Neon, O2, Propane, Butane, Acetylene, Ethylene and more
  • Pressure, Temperature, and Volumetic and Mass Flow Simultaneously Displayed
  • No warm-up time required
  • NIST 5 Point Certificate Included
  • No Straight Runs of Pipe Required
  • Analog and RS232 communications included
  • 200:1 turndown ratio.
  • Portable Battery Powered units (-B models)

FMA-1607A Model Options

View all models

Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Flow Range
Output Signal
Wetted Materials
Max Operating Pressure
Process Connection Type
Process Connection Size
Media Type
Communications Protocol
Max Process Temperature

The FMA-1600A Series mass and volumetric Omega's flow meters use the principle of differential pressure within a laminar flow field to determine the mass flow rate. A laminar flow element (LFD) insdie the meter forces the gas into laminar (streamlined) flow. Inside this region, the Poiseuille equation dictates that the volumetric flow rate be linearly related to the pressure drop along a fixed distance of the LFE. This, along with the viscosity of the gas, is used to accurately determine the volumetri flow rate. Separate absolute temperature and pressure sensors are incorporated and correct the volumetric flow rate to a set of standard conditions. This standardized flow rate is commonly called the mass flow rate and is reported in units such as standard cubic feet per minute (SCFM) or standard liters per minute (SLM).

Standard units include a 0 to 5 V output (4 to 20 mA optional) and RS232 communications. The gas select feature can be adjusted from the front of the keypad or via RS232 communications. Volumetric flow, mass flow, or absolute pressure, and temperature can be viewed or recorded through the RS232 connection. It is also possible to multi-drop up to 26 units on the same serial connection to a distance of 125'. These flowmeters are also available in a portable version for use in the field (-B models).

Accuracy: ±(0.8% of rdg + 0.2% FS)
Repeatability: ±0.2%
Turndown Ratio: 200:1
Response Time: 10 ms typical default response time for 63.2% of a step change. A variable register allows response time to be field adjustable to a certain extent via RS232 communications. The primary trade-off for response time is signal noise
Output: 0 to 5 Vdc standard
Operating Temperature: -10 to 50°C (14 to 122°F)
Zero Shift: 0.02% FS/°C/atm
Span Shift: 0.02% FS/°C/atm
Humidity Range: 0 to 100% non-condensing
Pressure (Max):
   FMA-1600A Series: 145 psig
   FMA-1600A Series: 50 psi differential
   FVL-1600A Series: 10 psig
   FVL-1600A Series: 10 psi differential
Measurable Flow Rate: 125% FS
Supply Voltage: 7 to 30 Vdc (15 to 30 Vdc for 4 to 20 mA output)
Supply Current: 35 mA typical current draw; 100 mA available supply recommended
Cable Connection: 8-pin mini DIN
Wetted Parts: 303 & 302 Stainless Steel, FKM Heat Cured Silicone Rubber, Glass Reinforced Polyphenylene Sulfide, Heat Cured Epoxy, Aluminum, Gold, Silicon, Glass. Contact Omega engineering for details.
-LSS (Option):316LSS, 303SS, 430FRSS, Perfluoroelastomer standard, FKM, EPDM, Buna, Neoprene Standard Pressure Drops (venting to atmosphere):
Max Flow Rate 0.5 to 50 SCCM 0.1 to 10 SLM 20 SLM 50 SLM 100 SLM 250 SLM 500 SLM 1000 SLM 1500 SLM
PSID 1 1 1 2 2.5 4.0 5.5 6.0 9.0
loading all models
loading all reviews
Rated 4 out of 5 by from Good Mass Flowmeter Easy to setup and reliable. Easy to use. Remote operation needs expert installation but is easy to use after setup. Price could be lower to have a broader application.
Date published: 2016-11-17
Rated 5 out of 5 by from Very Dependable Unit These units are very dependable. Have bought them on several occasions. Omega also has a good return policy which I had used because I had mistakenly bought the wrong unit. It was very painless to get it sent back and order the correct one.
Date published: 2022-03-22
Rated 5 out of 5 by from Dependable I have bought these in the past and never had any issues. Its why we continue to buy them.
Date published: 2022-03-08
  • y_2022, m_5, d_21, h_21
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.27
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_3
  • loc_en_US, sid_FMA-1607A, prod, sort_[SortEntry(order=HELPFULNESS, direction=DESCENDING), SortEntry(order=POSITIVE_FEEDBACK, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getReviews, 0ms
loading all QA

hi how i can connect it to o2 generator @65 psi thank you

Asked by: asdsand
Good Afternoon, Intended to read Air flow, does the display can be selected to show the flow in PPH?
Answered by: EEC123
Date published: 2021-05-06

How do I connect the device to a PC/laptop? What accessories are needed and what software?

Asked by: Engineer JK
Thank you for your inquiry! These units come standard with RS232 communications which will be the means for connecting to a PC or laptop. This will require a serial cable and Hyperterminal program mentioned on page 26 of the product manual.
Answered by: Application Engineer JM
Date published: 2021-05-26

Can the FMA-1612A be used in vacuum systems with air? Do you have CAD files (ideally Inventor) of the meter's external dimensions?

Asked by: Ajjj
Thank you for your inquiry! Yes, the FMA-1612A can be used in vacuum systems. Unfortunately, we do not have any 3D models for this device. All available dimensions will be listed in the product manual for this unit.
Answered by: Application Engineer JM
Date published: 2021-11-16

Intended to read air flow, can the display be set up to read in PPM?

Asked by: EEC123
Thank you for your inquiry about the mass flow meter. Unfortunately, it does not have the ability to read in concentration, only volumetric and true mass flow rates.
Answered by: Application Engineer JC
Date published: 2021-05-07

Item# FMA-1621A-I2- I would like to purchase this, can you verify how many decimals places the readout will be. I see the range is 0 to 1500SLPM. I need at least one decimal places. How many decimal places are the readings?

Asked by: Tyrone
Thank you for your inquiry about the mass flow mter. The display will have 2 decimal places when measuring the flow rate.
Answered by: Application Engineer JC
Date published: 2022-03-23

Hello, If our desired maximum flow rate is 3000 SLM but pressure is 100 psi (actual LM much lower), is this still the correct instrument to buy? Is the 0.8% accuracy relative to the maximum flow rate or is it a % of the flow rat being read?

Asked by: Nico
Thank you for your inquiry about the mass flow meter. Yes, this series has a flwo meter with a maximum flow capacity of 3000 LPM and the accuracy is percent flow rate reading, not of full scale in other mass flow meters.
Answered by: Application Engineer JC
Date published: 2021-10-19

I have a problem with an FMA-16018A sensor. I want to use RS232 communication, but I can't find the messages I need to send to receive the measurement data. I can only get it to send me data when it&acute;s in straming mode.

Asked by: JC785
Thank you for your inquiry about the mass flow meter. Please send an email to flow@omega.com along with the serial number and advise what information you wish to retrieve via RS232 communication and can provide the information.
Answered by: Application Engineer JC
Date published: 2022-02-23

Hello, does this meter read total mass or volume con the LCD screen?

Asked by: jppt1982
Thank you for your inquiry about this flow meter. You can have the display read in true mass flow, if you need a totalizer, that is an option, ('-TOT'), which will be in total mass.
Answered by: Applications Engineer
Date published: 2021-06-25
  • y_2022, m_5, d_21, h_21CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.27
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_8
  • loc_en_US, sid_FMA-1607A, prod, sort_[SortEntry(order=NUM_ANSWERS, direction=DESCENDING)]
  • clientName_omega
  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • LOCAL, getContent, 1ms
Nylon Body, TUBE ID 1/8" TO MALE 10-32UNF
0 In Stock
Polypropylene Body, TUBE ID 1/16" TO MALE 10-32UNF
14 In Stock
Portable battery pack cradle. Not for use with the "-B" portable meter versio
0 In Stock
This item is no longer available to purchase. For questions contact sales
Replacement 1.8M (6') 8 pin male Mini-DIN single ended, cable connector
0 In Stock
1.8M (6') 8 pin male Mini DIN, double ended, connector cable
3 In Stock
1.8 M (6') 8-pin male Mini-DIN to DB9 female adapter
0 In Stock
1.8M (6') 8 pin male right angle Mini-DIN single ended cable connector
0 In Stock
Multi-Drop Box
1 In Stock
7.62M (25') 8 pin male Mini-DIN single ended, cable connector
0 In Stock
Accessories for FLR-1600/FLV-4600 Series
8-pin male Mini-Din connector cable, double ended, 7.62M (25')
2 In Stock
Universal 100-240 VAC to 24 Volt DC power supply adaptor
2 In Stock
Nylon body, tube ID 1/6" BAXB to 10-32 UNF connector
0 In Stock
Polypropylene body, tube ID 1/8" hose barb to 10-32 UNF connector
0 In Stock
This item is no longer available to purchase. For questions contact sales

More Related Items

Related Categories

Save Configuration