
72
11 Supplement
NCR-84 Two-wire 4 … 20 mA/HART
51141-EN-181127
Ʋ Aluminium die-cast housing
Aluminium die-casting AlSi10Mg, powder-coated (Basis:
Polyester)
Ʋ Stainless steel housing
316L
Ʋ Cable gland
PA, stainless steel, brass
Ʋ Sealing, cable gland
NBR
Ʋ Blind plug, cable gland
PA
Ʋ Inspection window housing cover
Polycarbonate (UL-746-C listed), glass
2)
Ʋ Inspection window housing cover
Polycarbonate (UL-746-C listed), glass
3)
Ʋ Ground terminal
316L
Weights
Ʋ Instrument (depending on housing,
process fitting and antenna)
approx. 2 … 17.2 kg (4.409 … 37.92 lbs)
Torques
Max. torque, thread with integrated horn antenna
Ʋ G¾
30 Nm (22.13 lbf ft)
Ʋ G1½
200 Nm (147.5 lbf ft)
Ʋ G1½ (with PTFE threaded adapter)
5 Nm (3.688 lbf ft)
Max. torque, plastic horn antenna
Ʋ Mounting screws, mounting strap on
sensor housing
4 Nm (2.950 lbf ft)
Ʋ Flange screws, compression flange
DN 80
5 Nm (3.689 lbf ft)
Ʋ Terminal screws, adapter flange -
antenna
2.5 Nm (1.844 lbf ft)
Ʋ Flange screws, adapter flange DN 100 7 Nm (5.163 lbf ft)
Torque, flange with encapsulated antenna system
Ʋ Required torque of the flange screws 60 Nm (44.25 lbf ft)
Ʋ Recommended torque for tightening
the flange screws
60 … 100 Nm (44.25 … 73.76 lbf ft)
Max. torque for NPT cable glands and Conduit tubes
Ʋ Plastic housing
10 Nm (7.376 lbf ft)
Ʋ Aluminium/Stainless steel housing
50 Nm (36.88 lbf ft)
Input variable
Measured variable
The measured quantity is the distance between the
end of the sensor antenna and the product surface. The
reference plane for the measurement and the usable
measuring range are dependent on the antenna system.
2)
Glass with Aluminium and stainless steel precision casting housing
3)
Glass with Aluminium and stainless steel precision casting and Ex d housing
925-0373 Rev A