GESTRA NRR 2-50, Руководство по установке

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10
0.5 A
(semi-
delay)
In the control cabinet: Electrically connecting the level controller
Wiring diagram for level controller NRR 2-50
5
Supply voltage connection
24 V DC
with semi-delay fuse 0.5 A provided on site
6
Level electrode NRG 21-.. / NRG 26-21.
Max. 3 NRS/NRR 2-5.. devices can be connected (connection in parallel)
7
Level transmitter NRGT 26-1, 4-20 mA, with earthing point.
Max. 3 NRS/NRR 2-5.. devices can be connected (series connection)
8
Central earthing point (CEP) in control cabinet
9
Output contact for control valve actuation
0
MIN/MAX output contact, de-energizing delay 3 seconds
a
Actual value output 4-20 mA (optional)
Key
5
7
8
0 9
6
NRR 2-50
Fig. 3
9 0
MIN/MAX MIN/MAX
0.5 A
(semi-
delay)
5 a
a
8