Turbine flow sensors

Applications:
Flo-Tech turbine flow sensors measure flow rate of hydraulic oil, water and many other liquids. They are compact, low cost, durable, rugged, have fast response and can be used with remote readouts and other instruments. Made of a choice of materials to provide compatibility with various liquids. As the liquid flows, it rotates a stainless steel turbine and an electrical signal is generated by a magnetic pickup. The frequency of the signal is directly proportional to the flow rate. This signal is transmitted via cable to a remote readout, totalizer, signal converter, computer or other data collecting device. Many of the flow sensors may be located more than 300 meters from the devices.

Models FSC and FSB:
For high pressure flow measurement of oils, fuels and other liquids. Used for measuring flow of hydraulic circuits, test stands, machine tools, etc. Sensor bodies are aluminium and rated at a working pressure of 350 bars (5000 PSI). Maximum fluid temperature is 150°C. These models have flow ranges of 1,6 to 750 liters/minute. Signal connectors are MS type. Port sizes ½", ¾", 1", 1¼" and 1½" nominal tube O.D.

Models FSD:
Ideal for production, endurance and heavy-duty testing including high-shock, high-pressure and cycle testing. Models for severe cycle testing are fitted with pressed-in stainless steel turbine supports - (available by special order). Sensor bodies are high-strength Stressproof® steel and are rated at a working pressure of 420 bars (6000 PSI). Maximum fluid temperature is 150°C. These models have flow ranges of 20 to 1325 liters/minute. Signal connectors are MS type. Port sizes 1", 1¼", 1½" and 2". Fluid connectors are 4-bolt split-flange high-pressure connections (SAE J518, Code 62).

Flow sensors specifications

Standard specifications:
Standard Flo-Tech sensors will fulfill many flow meter requirements.

Flow accuracy:
± 1% of full flow rate - ± 0,2% repeatability

Fluid temperature range:
-20°C to +150°C continuous duty

Electrical output signal:
Self.generating alternating pulse, 100 mV RMS minimum (except FSC-375 Model which generates 10 mV RMS minimum). See "Typical Calibration" on Chart B for frequency information.

Chart I: Standard flow sensors:

Series	Pressure rating	Recommended fluid types	Fluid connection
FSC	350 bars (5000 PSI) with moderate hydraulic shock	Petroleum based and other non-corrosive lubricating fluids. (Filter recommended)	SAE 4-bolt split flange Code 61 female
FSB	350 bars (5000 PSI) with moderate hydraulic shock	Petroleum based and other non-corrosive lubricating fluids. (Filter recommended)	SAE straight thread O-ring female
FSD	420 bars (6000 PSI) with high hydraulic shock	Petroleum based and other non-corrosive lubricating fluids. (Filter recommended)	SAE 4-bolt Code 62 flanged head

Series	Body material	Bearing type	Electrical connection
FSC	Anodized aluminium 2024-T351	Ball, stainless steel	MS
FSB	Anodized aluminium 2024-T351	Ball, stainless steel	MS
FSD	Steel, Stressproof ® zinc plate	Tungsten carbide	MS

After selecting the series of flow sensor from chart A, refer to chart B to identify the model that meets the flow requirements.

Chart II: Metric specifications

	Flow rate (liters/minute)	Nominal port
Model	from	to	size
FSC-375	1,6	25	8 (1/2")
FSC-500	4	60	12 (3/4")
FSC-750	7,5	100	12 (3/4")
FSC-1000	11,5	200	16 (1")
FSC-1005	15	350	16 (1")
FSB-1250	20	500	20 (1¼")
FSB-1500	27	750	24 (1½")
FSD-1250	20	500	20 (1¼")
FSD-1500	27	750	24 (1½")
FSD-2000	34	1325	32 (2")

	Typical calibration		Dimensions (mm)				Weight
Model	cycles/liter (K factor)	full flow frequency (Hz @ l/min)	A	B	C	D	(kg)
FSC-375	5877	2449 @ 25	127	38	80	32	0,57
FSC-500	1220	1220 @ 60	165	51	80	51	1,30
FSC-750	703	1172 @ 100	165	51	83	51	1,25
FSC-1000	127	424 @ 200	165	51	85	64	1,48
FSC-1005	143	832 @ 350	165	51	85	64	1,48
FSB-1250	78	653 @ 500	178	76	88	102	3,63
FSB-1500	56	696 @ 750	178	76	91	102	3,46
FSD-1250	78	652 @ 500	190	54	87		2,78
FSD-1500	56	696 @ 750	190	64	91		3,06
FSD-2000	39	856 @ 1325	210	79	97		3,88

Continue to chart C for a list of options available. If no options are required, order one of the standard models listed in chart B.

Chart C: Available options

Model	Calibration for bi-directional flow	¼" NPT pressure port	5 or 10 point calibration certificate
FSC-375	x	x	x
FSC-500	x	x	x
FSC-750	x	x	x
FSC-1000	x	x	x
FSC-1005	x	x	x
FSB-1250	x	x	x
FSB-1500	x	x	x
FSD-1250	x	-	x
FSD-1500	x	-	x
FSD-2000	x	-	x

Ordering instructions:

Specify the following
1. Select series from chart A.
2. Select flow range from chart B.
3. Refer to chart c for extra options.
4. Advise Oleotec as to liquid measured, condition of liquid (dirty or filtered), pressure, shock pressure, temperature, accuracy required and any unusual conditions or signal conditioning necessary.

Ordering example:

Requirements	Reference	Suitable series or model
Example 1
hydraulic oil	Chart A	All models
210 bar	Chart A	FSC or FSB
130 litres	Chart B	FSC-1000
90°C	Standard specifications	Temperature to 150°C
>>> Order: FSC-1000
Example 2
hydraulic oil	Chart A	All models
420 bar	Chart A	FSD
416 litres	Chart B	FSD-1500
65°C	Standard specifications	Temperature to 150°C
>>>Order: FSD-1500
Example 3
Diesel oil	Chart A	All models
18 bar	Chart A	FSB or FSC
340 litres	Chart B	FSC-1000
50°C	Standard specifications	Temperature to 150°C
Reverse flow	Chart C	Code 10B
>>> Order: FSB-1250-10B

Digital display

Specifications

Mod.- XLI input ranges 0-50 4-20 10-50 mA
Mod.- XLF input frequency max 50Khz
output option 0-10 Vdc or 4-20 mA

Typical applications include flow, pressure and temperature measurement.