75
11 Supplement
NCR-84 Two-wire 4 … 20 mA/HART
51141-EN-181127
Ʋ According to EN 61326-1
None
Ʋ According to IACS E10 (shipbuilding)/
IEC 60945
< 250 µA
Characteristics and performance data
Measuring frequency
W-band (80 GHz technology)
Measuring cycle time approx.
6)
700 ms
Step response time
7)
≤ 3 s
Beam angle
8)
Version
Size
Beam angle
Plastic horn antenna
DN 80
3°
Thread with integrated horn antenna
G¾, ¾ NPT
14°
G1½, 1½ NPT
7°
Flange with encapsulated antenna system
≥ DN 50, 2"
6°
≥ DN 80, 3"
3°
Hygienic fittings
≥ DN 50, 2"
6°
≥ DN 80, 3½"
3°
Emitted HF power (depending on the parameter setting)
9)
Ʋ Average spectral transmission power
density
-3 dBm/MHz EIRP
Ʋ Max. spectral transmission power
density
+34 dBm/50 MHz EIRP
Ʋ Max. power density at a distance of
1 m
< 3 µW/cm²
Ambient conditions
Ambient, storage and transport tempera-
ture
-40 … +80 °C (-40 … +176 °F)
Process conditions
For the process conditions, please also note the specifications on the type label. The lowest value
(amount) always applies.
Process temperature
Version
Material
Seal
Process temperature (measured on the
process fitting)
Plastic horn antenna,
all versions
-40 … +80 °C (-40 … +176 °F)
6)
With operating voltage U
B
≥ 24 V DC
7)
Time span after a sudden distance change from 1 m to 5 m until the output signal reaches 90 % of the final
value for the first time (IEC 61298-2). Valid with operating voltage U
B
≥ 24 V DC
8)
Outside the specified beam angle, the energy level of the radar signal is 50% (-3 dB) less.
9)
EIRP: Equivalent Isotropic Radiated Power.
925-0373 Rev A