ifm Electronic SR2301 Auswerteeinheit für Strömungssensoren

Application

• Application: Flow monitoring; Wire monitoring

Electrical data

• Operating voltage tolerance [%]: -10...10
• Operating voltage [V]: 24 DC
• Current consumption [mA]: 125
• Reverse polarity protection: no
• Power-on delay time [s]: 30
• Number of channels: 1

Outputs

• Electrical design: relay
• Contact rating: 4 A (250 V AC cos phi > 0,7) ; 0,2 A (250 V DC); 4 A (24 V DC)
• Switching function flow monitoring: relay energised when flow is present
• Switching function wire break monitoring: relay de-energised in case of wire break
• Short-circuit proof: no
• Overload protection: no

Software / programming

• Adjustment of the switch point: potentiometer
• Selection liquids / gases: slide switch

Operating conditions

• Ambient temperature [°C]: -20...60
• Protection: IP 40
• Protection rating terminals: IP 20

Tests / approvals

• Approval: PTB 01 ATEX 2075; IECEx PTB 07.0004
• ATEX marking: II (1) G [Ex ia Ga] IIC
• MTTF [years]: 231

Mechanical data

• Weight [g]: 352.5
• Housing: housing for DIN rail mounting
• Dimensions [mm]: 78 x 45 x 120
• Materials: plastics

Displays / operating elements

• Display: function, 11 x LED
, switching status, LED, red

Electrical connection

• Required protection: miniature fuse to IEC60127-2 sheet 1; ≤ 5 A; fast acting; Place the fuse outside the hazardous area.

Remarks

• Remarks: Caution The control monitor must be mounted outside the hazardous area.
, Recommendation Check the safe functioning of the unit after a short circuit.
• Pack quantity: 1 pcs.

Electrical connection

• Connection: terminals: 15 x ...2.5 mm²

Other data