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Alfa Laval S 821 - Page 150

Alfa Laval S 821
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8.3 CONNECTION LIST 8 TECHNICAL REFERENCE
150
462 Drain of frame top section, lower
701 Motor for separator
Allowed frequency variation:
(momentarily during 5 seconds)
± 5%
± 10%
740 Speed sensor for bowl spindle
Typ e
Supply voltage, nominal
With sensor activated (near metal)
With sensor not activated (far from metal)
Number of pulses per revolution
See page 155.
Inductive promixly switch
8 V
Less or equal to 1 mA.
More or equal to 3 mA.
1
752 Position transducer for bearing holder
Typ e
Supply voltage
Operation range (mild steel)
Output voltage within sensing range
Load resistance, R
L
See page 156.
Inductive analogue sensor
18 to 30 V DC
0,5 to 2,5 mm
4 to 20 mA
400 Ohm
760 Cover interlocking switch
Typ e
Switch rating, resistive load max.
Mechanical limit switch
3 A (at 48 V DC)
1 A (at 220 V AC)

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