Omega Products FLSC790-BATT User Manual
ECONOMICAL PVC TurbINE FLOwMETErs
wITh LOCAL DIgITAL DIsPLAy
FTB690A-NPT Series
U Indicates Both Rate
and Total
U 3% Reading Accuracy
U 6-Digit Display
U Reads GPM or LPM
U Battery Operated
(Included)
FTB690 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 FLSC790-BATT is the
replacement lithium battery for the
display electronics. Batteries
provide 5 years of use.
SPECIFICATIONS
Accuracy: ±3% rdg
Extended Low Flow Range Accuracy:
±5.0% rdg (display models only)
Repeatability: ±0.1%
Pressure Rating: 150 psig (10.3 bar)
Max Pressure: 225 psi
Temperatures:
Operational: 0 to 60°C (32 to 140°F)
Storage: -40 to 70°C (-40 to158°F)
Viscosity: Rated accuracy for fluids
with viscosity of water (1 centistoke);
meters with display can be used for
fluids up to 100 centistokes with field
calibration
Pulse Output (Option): Open collector
sinking, 9 to 35 Vdc
Wetted Components:
Housing: PVC
Journal Bearings: Ceramic
(96% alumina)
Shaft: Tungsten carbide
Rotor and Supports: PVDF
Retaining Rings: 316 SS
FTB691A-NPT
FTB697A-NPT
Display: 6-digit LCD, flow rate, batch
and cumulative total
Power: Two 3V lithium
batteries (included)
Battery Life: 5 years
FTB692A-NPT
All models
shown smaller
than actual size.
FTB696A-F
FTB695A-NPT
To Order Visit omega.com/ftb690 for Pricing and Details
Model Flowrate Weight
Number Description GPM (LPM) kg (lb)
FTB691A-NPT ¹⁄₂" Sch. 80 NPT turbine 1 to 10 (3.8 to 38) 0.8 (0.36)
FTB692A-NPT ³⁄₄" Sch. 80 NPT turbine 2 to 20 (7.6 to 76) 0.88 (0.39)
FTB693A-NPT 1" Sch. 80 NPT turbine 5 to 50 (19 to 190) 1.0 (0.45)
FTB694A-NPT 1¹⁄₂" Sch. 80 NPT turbine 10 to 100 (38 to 380) 1.4 (0.63)
FTB695A-NPT 2" Sch. 80 NPT turbine 20 to 200 (76 to 760) 1.68 (0.76)
FTB696A-NPT 3" Sch. 80 NPT turbine
FTB696A-F
FTB697A-NPT 4" Sch. 80 NPT turbine
FTB697A-F
FLSC790-BATT Two 3V replacement batteries
Comes complete with two 3V lithium batteries and operator’s manual.
For units with pulse output module in place of display add suffix“-P” to model number,
no additional cost.
Ordering Examples: FTB691A-NPT-P,
FTB692A-NPT,
3" Sch. 80 flanged turbine
4" Sch. 80 flanged turbine 60 to 600 (227 to 2271)
1
NPT mount turbine 1 to 10 GPM, pulse module.
⁄
3
NPT mount turbine, 2 to 20 GPM.
⁄
4
2
F-65
40 to 400 (151 to 1514)
40 to 400 (151 to 1514)
60 to 600 (227 to 2271)
1.77 (3.9)
2.63 (5.8)
2.77 (6.1)
4.17 (9.2)
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