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
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 FTB790-RK remote kit allows remote mounting of display electronics. This option expands the
applications into wider fluid temperature ranges to -40 to 121°C (-40 to 250°F). The LCD
display can be mounted up to 90 m (300') from the turbine meter.
The FTB790-RK-FM is an FM approved remote kit. It allows the display electronics to be mounted in
a hazardous area up to 30 m (100') from the turbine meter and for fluid temperatures of -40 to 121°C
(-40 to 250°F).
The FLSC790-BATT is the replacement battery for the display electronics. Batteries provide 5 years
The FLSC790-90D is a 90° mounting adaptor designed to allow displays to be mounted 90° from the
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 FM Approvals: Standard turbine meters only with display and no accessories are FM approved for Class 1, Div. 1 (Sanitary and high pressure units are not FM approved)(Models with "-ISO" threads are not FM approved).
Model No. No Display
Model No. with Display
Range GPM (LPM)
Pressure Drop (psi)
Length mm (in)
Weight with Display kg (lb)
Optional Pulse Nominal K-Factor pulse/gal
1 to 10 (3.8 to 37.9)
2 to 20 (7.6 to 75.7)
5 to 50 (18.9 to 190)
10 to 100 (38 to 380)
20 to 200 (76 to 760)
† 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. NOTE: * Models with ISO threads are not FM approved.
**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) FTB792 Turbine meter with display, 3/4, £550.00 plus (1) FLSC790-MA Field installable 4-20 mAdc output,, £278.00, £550.00 + 278.00 = £828.00
FTB790 - FTB790 Series Turbine, Totalizer, Rate Meter