IFM SI5000 Series Flow Sensor Switch

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2025/7/4 Update

Independent housing｜DC/AC Switch output, with bar graph display
— SI flow switches are programmed using microprocessor-based buttons and are equipped with highly visible LEDs that indicate flow and switch points. They are the ideal choice for most applications with flow / no-flow conditions.

IFM SI5000 Series Flow Sensor Switch

Technical Features

Uses calorimetric sensing principle, no moving parts, more reliable than mechanical switches.

Replaces mechanical switches, used for monitoring liquids and gases.

Wide measuring range, covers more applications.

LED bar graph display for flow rate and setpoint.

Other features include plug-and-play replacement, real-time configuration file changes, and diagnostic feedback.

Products + Accessories Selection:

Output	Process Connection	Ideal switching point setting range for water*	Power Supply Voltage	Current/Power Consumption	Load Current / Contact Rating	Response Time	Pressure Rating	Order No.
1 x PNP, N.O. / N.C.	See required accessories	3…100 cm/sec	18…36 VDC	< 60 mA	250 mA	1…10 sec	300 bar	SI5010
1 x NPN, N.O. / N.C.	See required accessories	3…100 cm/sec	19…36 VDC	< 60 mA	250 mA	1…10 sec	300 bar	SI5011
1 x AC relay, N.O. / N.C.	See required accessories	3…100 cm/sec	90…240 VAC	< 3.5 VA	3A contact rating	1…10 sec	300 bar	SI5006

Required accessories

Type	Description	Order No.
	G1/4 BSPP adapter, 316 stainless steel	E40099
G1/2 BSPP adapter, 316 stainless steel	E40096
	Weld-in adapter, carbon steel	E40113
Weld-in adapter, 316 stainless steel	E40124
	Adapter for small flow rates, 316 stainless steel, M12	E40129

Optional accessories and connecting cables

Type	Description	Order No.
	LineRecorder Device, parameter setting software (requires E30390 cable)	QA0011
	USB IO-Link master cable for parameter setting	E30390
	Memory plug for storing sensor parameters, for easy transfer without a PC	E30398
	M12 Micro DC (4-pin) 2 m, PUR	EVC001
M12 Micro DC (4-pin) 5 m, PUR	EVC002
M12 Micro DC (4-pin) 10 m, PUR	EVC003
	M12 Micro DC (4-pin) 2 m, PUR	EVC004
M12 Micro DC (4-pin) 5 m, PUR	EVC005
M12 Micro DC (4-pin) 10 m, PUR	EVC006
	1/2″ Micro AC (5-pin) 4 m, PUR (for SI5006)	E18026
	1/2″ Micro AC (5-pin) 4 m, PUR (for SI5006)	E18027

Specifications:

Medium temperature range: -25…80 °C
Ideal switch point setting range for oil: 3…300 cm/sec
Ideal switch point setting range for gas: 200…800 cm/sec
Repeat accuracy: 1…5 cm/sec (for water)
Hysteresis: 2…5 cm/sec (for water)
Wetted parts: 316 stainless steel, FKM
Protection class: IP67

Benefits Introduce In Detail

Ifm flow switches are an ideal alternative to mechanical flow switches

SI flow switches are programmed using microprocessor-based buttons and are equipped with highly visible LEDs that indicate flow and switch points. They are the ideal choice for most applications with flow / no-flow conditions.

They can be used to monitor for pump dry-running, reducing the risk of permanent, irreversible damage that could result.

ifm efector flow switches offer a wide range of process connections to meet the needs of most applications. This flexibility allows the switch to be easily installed in a wide range of applications.

ifm efector flow switches are solid-state switch alternatives to mechanical flow switches and can detect liquid and gas flows. Since there are no moving parts that could potentially clog or break, ifm efector flow switches avoid the maintenance problems faced by mechanical flow switches.