Flow meters TFB-200
Battery-Powered Turbine Flow Meter
A turbine meter on its own lithium-ion battery, for sites with no power, DN15 to DN200.
- Pipe size range
- DN15 to DN200
- Communication
- RS485
- Standards
- IIA, IIB, CMRI certified
- Protection class
- IP67
Documents
Overview
Why buyers choose it
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No supply needed
An internal lithium-ion battery runs the transmitter, so the meter goes where no cable does.
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Measures liquids that do not conduct
Clear liquids up to 100 cP, including those an electromagnetic meter cannot read.
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RS485 and a local display
Readings go to a logger or telemetry unit over RS485, and show on an LCD at the meter.
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DN15 to DN200
From 0.6 m³/h at the smallest size to 800 m³/h at the largest.
In detail
This is a turbine meter whose transmitter runs on an internal lithium-ion battery instead of a 24 V DC supply. It is meant for the places where there is a liquid to measure but nothing to power a transmitter from: a remote pipeline, a process line far from an instrument supply, or a set-up that moves from site to site.
The measuring element is the same. A bladed rotor of SS410 or 17 PH stainless steel turns on a tungsten carbide shaft inside a stainless steel body, and its speed follows the mean velocity through the bore. The liquid must be clear and no thicker than 100 cP, and it may be conductive or not. Sizes run from DN15 to DN200, each over a 10:1 range, from 0.6 to 6 m³/h at DN15 to 80 to 800 m³/h at DN200. Accuracy is ±1% of full scale between 20 and 100% of flow; linearity and repeatability are ±1%.
A 16×2 LCD shows flow rate and the running total, switched with a key, so the meter can be read where it stands. The output is RS485 only, for a data logger or a telemetry unit to collect the readings.
Process limits are 0 to 120 °C and 20 kg/cm², with a pressure drop of about 0.28 kg/cm² at maximum flow. The transmitter housing is die-cast aluminium to IP67, on the meter or remote from it. Connections are ASA 150 raised-face flanges to B16.5 at every size, or BSP male threads or stainless tri-clover up to DN50. It carries CMRI certification, listed for groups IIA and IIB.
Technical specifications
Metrological
| Measuring principle | Turbine, bladed rotor |
|---|---|
| Accuracy | ±1% of full scale from 20 to 100% of flow; linearity ±1% |
| Repeatability | ±1% |
Hydraulic
| Measured media | Clear liquids up to 100 cP, including non-conductive liquids |
|---|---|
| Medium temperature | 0 to 120 °C |
| Maximum working pressure | 20 kg/cm² |
Materials
| Body material | Stainless steel body, support and flanges |
|---|---|
| Rotor material | Rotor SS410 or 17 PH; shaft tungsten carbide; bearings tungsten carbide sleeve or V-jewel |
| Enclosure material | Die-cast aluminium |
Electrical
| Power supply | Internal lithium-ion battery; consumption under 0.5 VA |
|---|---|
| Display | 16×2 LCD showing flow rate and total, switched by a key |
Communication
| Communication | RS485 |
|---|
Environmental
| Protection class | IP67 |
|---|---|
| Ambient conditions | 0 to 55 °C, 5% to 95% humidity, non-condensing |
Approvals
| Standards | IIA, IIB, CMRI certified |
|---|
Dimensions and installation
| Pipe size range | DN15 to DN200 |
|---|---|
| End connection | ASA 150 RF flanged to B16.5; BSP male threaded or SS tri-clover up to DN50 |
| Transmitter mounting | Integral or remote; in-line, horizontal or vertical |
Parts
Parts of a turbine meter
How a meter of this type is built, and what this model is made of.
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Transmitter with display
Converts the pickup signal into a flow reading and shows it.
Display 16×2 LCD showing flow rate and total, switched by a key
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Pickup sensor
Detects each rotor blade passing and outputs a pulse.
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Rotor
Spins at a rate proportional to the flow velocity.
Rotor material Rotor SS410 or 17 PH; shaft tungsten carbide; bearings tungsten carbide sleeve or V-jewel
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Shaft and bearings
Support the rotor and let it turn freely.
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Flow straightener
Conditions the flow before it reaches the rotor.
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Body
Houses the rotor and carries the flow through the bore.
Body material Stainless steel body, support and flanges
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Flange
Bolts the meter to the pipeline.
End connection ASA 150 RF flanged to B16.5; BSP male threaded or SS tri-clover up to DN50
Download centre
Everything you need to specify.
Documents for the Battery-Powered Turbine Flow Meter.
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Download PDF (Opens in a new tab)
Technical datasheet
Specifications and dimensions.
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