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 NIVOSWITCH - VIBRATING FORK LEVEL SWITCH
R ? ? 4 ? ? ?

 Type
R 4
 Fork material / Approval
R 4
N Stainless steel with tumble polishing / Ex d
M Highly polished stainless steel / Ex d
 Process connection
R 4
M 1" BSP
P 1" NPT
H 1 1/2" BSP
N 1 1/2" NPT
C 2" BSP
L 2" NPT
 Stainless steel flanges; not welded unless specifically ordered so Flanges conform to: EN 1092-1 / ANSI B 16.5
G DN50 PN40/25
B ANSI 2" RF 600/300 psi
K JIS 40K 50A
 Housing
R
4 Aluminium (paint coated)
 Probe length
R 4
 For standard polished forks (RN)
0 1 Standard probe: 125 mm
n n 0.2-3 m; each started 0.1 m
 For highly polished forks (RM)
0 1 Standard probe: 125 mm
n n 0.2-3 m; each started 0.1 m
 nn = 02-30 : 0.2-3 m
 Output
R 4
N 1 SPDT relay, 250 V AC, 8 A
P 2 SPDT relay, 1 x 250 V AC, 8 A and 1 x 250 V AC, 6 A

R ? ? 4 ? ? ?
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