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1: LED display
2: setting pushbutton
3: connection for voltage supply and output signals
4: connection for flow sensor
Product characteristics
Control monitor for flow sensors
Connection: 1 sensor
Application flow monitoring and wire breaking monitoring
Electrical data
Electrical design AC / relay
Operating voltage [V]85...265 AC
Nominal voltage [V]90...240 AC (45...65 Hz)
Voltage tolerance [%]-5 / +10
Power consumption [VA]< 3.5
Protection class II
Reverse polarity protection no
Output function normally open / closed programmable
Switching function
- Flow monitoring output switches ON when flow is present (for output function = normally open)
output switches OFF when flow is present (for output function = normally closed)
Contact rating 3 A (250 V AC / 30 V DC) ¹)
Short-circuit protection no
Overload protection no
Reaction times
Power-on delay time [s]10
Software / programming
Adjustment of the switch point pushbuttons
Ambient temperature [°C]-20...60
Protection IP 67; with sensor attached
Tests / approvals
EN 61000-4-2 ESD:  4 kV CD / 8 kV AD
EN 61000-4-3 HF radiated:  10 V/m
EN 61000-4-4 Burst:  2 kV
EN 61000-4-6 HF conducted:  10 V
Shock resistance
DIN IEC 68-2-27: 30 g (6 ms)  
Vibration resistance
DIN IEC 68-2-6: 5 g (55...2000 Hz)  
MTTF [Years]209
Mechanical data
Housing materials stainless steel 316L / 1.4404; stainless steel 304 / 1.4301; PC (Makrolon); PBT-GF 20; EPDM/X (Santoprene); brass
Weight [kg]0.232
Displays / operating elements
Function display LED display
Output status indication LEDOrange LEDs flash in case of wire break
Electrical connection
Connection 1/2" UNF-Connector

N.B: no protective insulation between relay circuit
and supply voltage
n.c. = not connected
Note: miniature fuse to IEC60127-2 sheet 1,
≤ 5 A (fast acting)
¹) number of switching cycles: 20 million mechanically
switching cycles with 3 A load: 100.000 electrically
relay type: contact closed at work
connection for flow sensor without short-circuit protection / reverse polarity protection
The flow sensor must be directly connected to the control monitor. A connection by means of extension cables is not allowed.
Recommendation: check the unit for reliable function after a short circuit.
Pack quantity [piece]1
ifm efector, inc. • 1100 Atwater Drive • Malvern • PA 19355  —  We reserve the right to make technical alterations without prior notice.  —  US  —  SR5906  —  17.08.2010
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