Cookies on the OMEGA websites
We use cookies on this website, these cookies are essential for the website to work correctly.If you continue without changing your settings, we'll assume that you are happy to receive all cookies on this website.To find out more information about these cookies please click here.
Basket  |  Contact  |  Help  | 
Free Phone 0800 488 488
International+44(0) 161 777 6611
Layer N Banner

Turbine Flowmeters with Local Digital Display

FTB790 Series

Turbine Flowmeters with Display | FTB790 Series

Turbine Flowmeters with Display

£445.00 G2S05NXXXXA

  • Turbine Flowmeters with Both Rate and Total Indication
  • Display models have selectable units of Litres, US Gallons or 15-point user curve
  • 6-Digit Display
  • Signal Output Capabilities
  • Battery Operated
Water Meters - View related products


Find how a Flow meter works on this link.

The turbine flow meter from the FTB790 Series with microprocessor-based electronics offers a durable, compact, high-precision fluid measurement device, with total and rate indication. Information is clearly displayed on a large 6-digit liquid crystal display with only 2-point floating decimal for totals from 0.01 to 999,999. All operations are easily performed with only 2 buttons.

The basic unit and display are powered by 2 lithium batteries, providing up to 5 years of use. Cumulative total, batch total, and rate of flow are standard. A single-point field calibration curve can be stored in memory.

The turbine meter can also be ordered without display electronics. A special pulse output model (FLSC790-P-ND) must be ordered to obtain an open collector current sinking output operated on 9 to 35 Vdc. The output is a square wave pulse with a 3-wire connection.

Accessories for Turbine Meters With the Display:
The FLSC790-MA provides a 4 to 20 mA or 0 to 5 Vdc output for rate indication. The output module requires field calibration. The 4 to 20 mA dc is a 2-wire system requiring 8 to 30 Vdc power (24 Vdc recommended).

The FLSC790-P pulse output module provides an unscaled open collector sinking output operating on an applied voltage of 0 to 60 Vdc. The output is a square wave pulse with an amplitude the same as the supplied voltage.

The FLSC790-P-DC external power module for the FLSC790-P, allows for 9 to 30 Vdc external power for the pulse output. Internal batteries in the display can be used as an auxiliary power source.

The FLSC790-BATT is the replacement battery for the display electronics. Batteries provide 5 years of use.

The FLSC790-90D is a 90° mounting adaptor designed to allow displays to be mounted 90° from the standard position.

    FTB-791: ±2% rdg
    FTB-792, FTB-793: ±1.5% rdg
    FTB-794, FTB-795: ±1.0% rdg
Repeatability: ±0.1%
Pressure Rating:         1500 psig (103 bar)
    With "-HP" option:  3000 psig (207 bar)
Temperature Range:
    With Remote Electronics Kit: -40 to 121°C (-40 to 250°F)
    Without Remote Electronics: -10° to 60°C (14 to 140°F)
Viscosity: Rated accuracy for fluids with viscosity of water (1 cSt); meters with display can be used for fluids up to 100 cSt with field calibration
Wetted Components:
    Housing: 316 SS
    Journal Bearings: Ceramic (96% alumina)
    Shaft: Tungsten carbide
    Rotor and Supports: PVDF
    Retaining Rings: 316 SS
Display: 6-Digit LCD indicates flow rate, batch and cumulative total
Battery Life: 5 years

Model No.
No Display
Model No.
Pressure Drop
mm (in)
Weight with Display
kg (lb)
Optional Pulse Nominal
FTB791-ND FTB791 1/2 FNPT 1 to 10
(3.8 to 37.9)
8.0 psi 107 (4.2) 1.0
FTB792-ND FTB792 3/4 FNPT 2 to 20
(7.6 to 75.7)
7.5 psi 109 (4.3) 1.1
FTB793-ND FTB793 1 FNPT 5 to 50
(18.9 to 190)
5.0 psi 114 (4.5) 1.3
FTB794-ND FTB794 1-1/2 FNPT 10 to 100
(38 to 380)
4.0 psi 135 (5.3) 2.1
FTB795-ND FTB795 2 FNPT 20 to 200
(76 to 760)
10 (38) 4.0 psi 3.1
Place Order(Specify Model Number)
Part Number/ Desc.
Turbine Flowmeters with Local Digital Display
Turbine Flowmeters WITHOUT Digital Display
Quick Ship
Availability: 4 weeks
1/2" FNPT, Turbine Flow Meter, 1-10 GPM
Quick Ship
Availability: 4 weeks
3/4" FNPT, Turbine Flow Meter, 2-20 GPM
Quick Ship
Availability: 1 week
1" FNPT, Turbine Flow Meter, 5-50 GPM
Quick Ship
Availability: 4 weeks
1 1/2" FNPT, Turbine Flow Meter, 10-100 GPM
Quick Ship
Availability: 4 weeks
2" FNPT, Turbine Flow Meter, 20-200 GPM
REPLACEMENT DISPLAYS (for Display Models Only)
Quick Ship
Availability: 4 weeks
Replacement display for FTB791
Quick Ship
Availability: 4 weeks
Replacement display for FTB792
Quick Ship
Availability: 4 weeks
Replacement display for FTB793
Quick Ship
Availability: 4 weeks
Replacement display for FTB794
Quick Ship
Availability: 4 weeks
Replacement display for FTB795
Quick Ship
Availability: 4 weeks
1/2" retaining ring for the FTB791
Quick Ship
Availability: 4 weeks
3/4" retaining ring for the FTB792
Quick Ship
Availability: 4 weeks
1" retaining ring for the FTB793
Quick Ship
Availability: 4 weeks
1 1/2" retaining ring for the FTB794
Quick Ship
Availability: 4 weeks
2" retaining ring for the FTB795
FIELD INSTALLABLE ACCESSORIES (for display models only)
Quick Ship
Availability: In Stock
†† 4-20 mA dc output module
Quick Ship
Availability: 4 weeks
External power module for FLSC790-P (9-30 Vdc)
Quick Ship
Availability: 1 week
Replacement batteries (2 included)
Field Installable Required Accessory for No Display Models Only
Quick Ship
Availability: 4 weeks
Pulse output for models without displays (“-ND” suffix) open collector output
Quick Ship
Availability: 4 weeks
90° display mounting adaptor
Quick Ship
Availability: 4 weeks
1/2" rotor/supt replacement kit
Quick Ship
Availability: 4 weeks
3/4" rotor/supt replacement kit
Quick Ship
Availability: 4 weeks
1" rotor/supt replacement kit
Quick Ship
Availability: 1 week
1 1/2" rotor/supt replacement kit
Quick Ship
Availability: 4 weeks
2" rotor/supt replacement kit
All amounts shown in EUR, GBP, or USD
Note: Comes complete with two 3V lithium batteries, and operator's manual.

†† Comes complete with 3 m of cable and operator's manual.

Outputs and accessories are not designed for hazardous environments

For units with BSPT threads add "-ISO" to the model number, no additional charge.

**Models with no display require Signal Output Module "- FLSC790-P-ND", ordered separately.

Extended low flow range and field calibration for viscosity not available on "-ND" (no display) models.

Except as noted, options and accessories are for display models only. Only one module can be installed per unit.

For 5-point NIST traceable certification, add suffix "-NIST" to the model number; add £252/€329/$375. to the price.

Ordering Example:  (1) FLSC790-MA Field installable 4-20 mAdc output,, £353.00

Product Manuals:

Download Turbine Flowmeters
Download FTB790 - FTB790 Series Turbine, Totalizer, Rate Meter
Download FTB790-RK - Remote Kit for FTB790 Series
Download FTB790-RK-FM - Remote Kit for FM approved units
Download FLSC790-MA - 4-20ma Module for FTB790 Series
Download FLSC790-ND-P - Puls Module for no display units
Download FLSC790-P - Pulse Module for FTB790 Series
Download FLSC790-P-DC - Pulse Module for DC Units
We noticed you are from the US. Visit your local site for regional offers and live support.