Compact Model Series 400
Monitoring Equipment for fluids Self-contained sensor One-piece special steel sensor LED-Line Pressure-tight up to 100 bar Resistive PA-housing

The compact SN 450  flow sensors are suitable for use when monitoring the flow of liquids. The probe must be positioned in the pipe in such a way that the tip is fully immersed in the medium. 

See full Specification below:   
  
 

TYPE	ID-NO.	DESIGN
SN 450/1-A4-WR1	Compact model	G1/2 stainless steel A4		115 V AC
SN 450/1-A4-WR2	Compact model	G1/2 stainless steel A4		230 V AC
SN 450/1-A4-GR	Compact model	G1/2 stainless steel A4		24 V DC
SN 450/2-A4-WR1	Compact model	G1/2 stainless steel A4	L= 80 mm	115 V AC
SN 450/2-A4-WR2	Compact model	G1/2 stainless steel A4	L= 80 mm	230 V AC
SN 450/2-A4-GR	Compact model	G1/2 stainless steel A4	L= 80 mm	24 V DC
SN 450/3-A4-WR1	Compact model	G1/2 stainless steel A4	L= 120 mm	115 V AC
SN 450/3-A4-WR2	Compact model	G1/2 stainless steel A4	L= 120 mm	230 V AC
SN 450/3-A4-GR	Compact model	G1/2 stainless steel A4	L= 120 mm	24 V DC

 
 

Technical Data
Supply voltage	SN 450...GR	SN 450...WR1	SN 450...WR2
	24 V DC	115 V AC	230 V AC
Tolerance	+/- 20%	+/- 15%	+/- 15%
Current consumption	80 mA	60 mA	30 mA
Output	relay/change over	relay/change over	relay/change over
Switching voltage max.	250 V AC / 60 V DC	250 V AC / 60 V DC	250 V AC / 60 V DC
Switching current max.	4 A AC / 4 A DC	4 A AC / 4 A DC	4 A AC / 4 A DC
Switching power max.	1000 VA / 60 W	1000 VA / 60 W	1000 VA / 60 W
Temperature range	-20...70°C	-20...70°C	-20...70°C
Detection range
Water	1...150 cm/s	1...150 cm/s	1...150 cm/s
Oil	3...300 cm/s	3...300 cm/s	3...300 cm/s
Temperature range	-20...80°C	-20...80°C	-20...80°C
Temperature gradient	250°C/min	250°C/min	250°C/min
Temperature step time	typ. 12 s	typ. 12 s	typ. 12 s
Stand-by time	typ. 8 s (2...15 s)	typ. 8 s (2...15 s)	typ. 8 s (2...15 s)
Switch-on delay	typ. 2 s (1...13 s)	typ. 2 s (1...13 s)	typ. 2 s (1...13 s)
Switch-off delay	typ. 2 s (1...15 s)	typ. 2 s (1...15 s)	typ. 2 s (1...15 s)
Compressive strength	100 bar	100 bar	100 bar
Material sensor	1.4571 (AISI 316Ti)	1.4571 (AISI 316Ti)	1.4571 (AISI 316Ti)
Material housing	PA	PA	PA
Protection DIN 40050	IP 67	IP 67	IP 67
Connection	Fixed Cable	Fixed Cable	Fixed Cable
	5 x 0.5 mm²	5 x 0.5 mm²	5 x 0.5 mm²
	2m PVC	2m PVC	2m PVC

 

LED-Display
 

red	Indicates flow off or flow below set threshold value. Relay is not activated.
yellow	Indicates the flow has just exeeded the set threshold value. Relay is activated.
green	Indicates the flow has exceeded the threshold value by between 30 and 100%. Flow relay is activated.

 

Connection   

Code: BK=black BN=brown BU=blue GN=green YE=Yellow GY=grey PK=pink WH=white