Indicating Turbine Flow Meters
2" FNPT, Turbine Flow Meter, 20-200 GPM
- Both Rate and Total Indication
- Percent Reading Accuracy
- 6-Digit Display
- FM Approved (Standard unit only)
- Signal Output Capabilities
- Reads GPM or LPM (Field Selectable)
- Battery Operated
G2S20NXXXXB Model Options
View all modelsEdit 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
Accuracy
Max Process Temperature
Process Connection Size
Display
Category
Media Type
Output Signal
Max Operating Pressure
Wetted Materials
Process Connection Type
Features
- Accuracy Value FTB-791: ±2% rdg
FTB790 Series turbine meters 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.
SPECIFICATIONS
Accuracy:
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
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.
SPECIFICATIONS
Accuracy:
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. with Display | FNPT Size | Range GPM (LPM) | Pressure Drop (psi) | Length mm (in) | Weight with Display kg (lb) | Optional Pulse Nominal K-Factor pulse/gal |
|---|---|---|---|---|---|---|---|
| FTB791-ND | FTB791 | 1/2 FNPT | 1 to 10 (3.8 to 37.9) | 8.0 psi | 107 (4.2) | 1.0 (2.3) | 2500 |
| FTB792-ND | FTB792 | 3/4 FNPT | 2 to 20 (7.6 to 75.7) | 7.5 psi | 109 (4.3) | 1.1 (2.5) | 1100 |
| FTB793-ND | FTB793 | 1 FNPT | 5 to 50 (18.9 to 190) | 5.0 psi | 114 (4.5) | 1.3 (3.0) | 565 |
| FTB794-ND | FTB794 | 1-1/2 FNPT | 10 to 100 (38 to 380) | 4.0 psi | 135 (5.3) | 2.1 (4.6) | 215 |
| FTB795-ND | FTB795 | 2 FNPT | 20 to 200 (76 to 760) | 10 (38) | 4.0 psi | 3.1 (6.8) | 100 |
What are the allowable mounting orientations? Vertical / flow up, vertical / flow down, horizontal?
Thank you for your inquiry about the inline flow meter. The orientation can be mounted in any position, yet, in a vertical position, the flow must go from floor to ceiling and must be full of flow at all times.
Date published: 2022-02-22
can these be utilized with nozzles?
The FTB791 requires a laminar flow in order to work properly. You cannot mount this sensor right before a nozzle. This sensor needs a straight pipe before and after the sensor. The FTB791 needs at least 15 inches of straight pipe before and 10 inches after the sensor. Please contact our Tech Support or flow@omega.com so we can fully understand your application to further advise as you need. Thank you!
Date published: 2019-05-20
Do you use any lubricant in assembly?
Thank you for your inquiry. Lubrication is not used in the assembly for the FTB790 series.
Date published: 2020-04-23
can this flow meter be used with Methylene Chloride VDG?
Thank you for your question?
Here is the the whetted materials of our meters. Please see below: Housing: 316 SS
Journal Bearings: Ceramic (96% alumina)
Shaft: Tungsten carbide
Rotor and Supports: PVDF
Retaining Rings: 316 SS
Date published: 2019-07-01
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Field Installable Accessories
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