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

 Type
R 4
 Fork material / Ex certificate
R 4
N Tumble-polished stainless steel / Ex d G
M High-polished stainless steel / Ex d G
 Process connection
R 4
M 1" BSP
P 1" NPT
H 1½" BSP
N 1½" NPT
C 2" BSP
L 2" NPT
T 1½" TriClamp (ISØ 2852)
R 2" TriClamp (ISØ 2852)
D DN40 Pipe coupling (DIN 11851)
E DN50 Pipe coupling (DIN 11851)
U Stainless steel flanges; welded (MFT–___–H type flanges [available from size DN40] should be ordered separately)
 Stainless steel flanges;
Flanges conform to: EN 1092-1 / ANSI B 16.5
S DN40 PN40 / 25 / 16 / 10
G DN50 PN40 / 25
B ANSI 2" RF 600/300 psi
K JIS 40K 50A
 Housing
R
4 Painted aluminum
 Probe length
R 4
 For standard polished forks (RN)
0 0 Standard probe: 69 mm
0 1 Standard probe: 125 mm
n n 0.2…3 m; sold by the 0.1 m
 For high-polished forks (RM)
0 0 Standard probe: 69 mm
0 1 Standard probe: 125 mm
n n 0.2…3 m; sold by the 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: 1x 250 V AC, 8 A and 1x 250 V AC, 6 A

R ? ? 4 ? ? ?
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