KROHNE DK 46 I-DK 47 I EN - Manual (Page 17)

ELECTRICAL CONNECTIONS
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DK46I - DK47I
www.krohne.com 08/2008 • 4000360001 MA DK46I-47I-R01-en
4.4 Minimum clearance between two limit switches
Where two sensors are in one device, and also where DK glass devices with limit switches are
arranged close together, minimum clearances must be maintained in order to avoid mutual
influence of the switches.
4.5 Switching performance
Limit switch RC...-N0 RC...-N0 RC...-N0 RC...-N0
Ball outside sensor: Signal ≥3 mA
Ball inside sensor: Signal ≤1 mA
Limit switch RC...-N3 RC...-N3 RC...-N3 RC...-N3
Independent of ball position see image 1 : Signal ≥3 mA
Pre condition: The ball is located outside the sensor.
Limit switch RB...-E2 RB...-E2 RB...-E2 RB...-E2
Independent of ball position like transit 2 : Signal ≤1 V
Pre condition: The ball is located outside the sensor.
Min. clearance RC… 2-wire RB… 3-wire
1 16 mm (0.63") 45 mm (1.773")
2 6 mm (0.236") 30 mm (1.182")
NOTE!
To get a correct mode of operation after power on the limit switches RC...-N3
RC...-N3 RC...-N3 RC...-N3 have to pass
through for one time 1 and 2 .
MA_DK46I_47I_R01_en_PRT.book Page 17 Tuesday, August 5, 2008 7:03 AM