
81
11 Supplement
NCR-84 Two-wire 4 … 20 mA/HART
51141-EN-181127
Plastic horn antenna
Air volume
Pressure
Without reflux valve
With reflux valve
0.4 bar (5.8 psig)
5 m
3
/h
-
0.6 bar (8.7 psig)
6 m
3
/h
1 m
3
/h
0.8 bar (11.6 psig)
-
2.1 m
3
/h
1 bar (14.5 psig)
-
3 m
3
/h
1.2 bar (17.4 psig)
-
3.5 m
3
/h
1.4 bar (20.3 psig)
-
4.2 m
3
/h
1.6 bar (23.2 psig)
-
4.4 m
3
/h
1.8 bar (20.3 psig)
-
4.8 m
3
/h
2 bar (23.2 psig)
-
5.1 m
3
/h
Connection
Ʋ Thread
G⅛
Reflux valve - (optional, is absolutely necessary for Ex applications)
Ʋ Material
316Ti
Ʋ Thread
G⅛
Ʋ Seal
FKM (SHS FPM 70C3 GLT), EPDM (COG AP310)
Ʋ For connection
G⅛
Ʋ Opening pressure
0.5 bar (7.25 psig)
Ʋ Nominal pressure stage
PN 250
Electromechanical data - version IP 66/IP 67 and IP 66/IP 68; 0.2 bar
Options of the cable entry
Ʋ Cable entry
M20 x 1.5; ½ NPT
Ʋ Cable gland
M20 x 1.5; ½ NPT (cable ø see below table)
Ʋ Blind plug
M20 x 1.5; ½ NPT
Ʋ Closing cap
½ NPT
Material ca-
ble gland
Material seal
insert
Cable diameter
4.5 … 8.5 mm
5 … 9 mm
6 … 12 mm
7 … 12 mm
10 … 14 mm
PA
NBR
–
●
●
–
●
Brass, nickel-
plated
NBR
●
●
●
–
–
Stainless
steel
NBR
–
●
●
–
●
Wire cross-section (spring-loaded terminals)
Ʋ Massive wire, stranded wire
0.2 … 2.5 mm² (AWG 24 … 14)
Ʋ Stranded wire with end sleeve
0.2 … 1.5 mm² (AWG 24 … 16)
925-0373 Rev A