Burkert Type 8136 - Manual (Page 63)

Additional deviation through strong, high
frequency electromagnetic fields acc. to EN
61326 <±50 mm
Specifications apply also to the current output
Temperature drift - Current output ±0 .03 %/10 K relating to the 16 mA span max.
±0 .3 %
Deviation on the current output by analogue/
digital conversion <±15 µA
Deviation on the current output by strong,
high frequency electromagnetic fields within
EN 61326 <±150 µA
Characteristics and performance data
Frequency K-band (26 GHz technology)
Measuring cycle time
-
Standard electronics approx. 450 ms
-
Electronics with increased sensitivity
approx. 700 ms
Step response time 2) ≤ 3 s
Tracking speed of the measuring window
max. 1 m/min
Beam angle 3)
-
Encapsulated antenna system 22°
-
Plastic horn antenna 10°
Emitted HF power (depending on the parameter adjustment) 4)
-
Average spectral transmission power
density -14 dBm/MHz EIRP
-
Max. spectral transmission power den-
sity +43 dBm/50 MHz EIRP
-
Max. power density in a distance of 1 m < 1 µW/ cm²
Ambient conditions
Ambient, storage and transport temperature -40 … +80 °C (-40 … +176 °F)
Process conditions
For the process conditions, please also note the specifications on the type label. The lower value
always applies.
2) Time span after a sudden measuring distance change by max. 0.5 m in
liquid applications, max 2 m with bulk solids applications, until the output
signal has taken for the first time 90 % of the final value (IEC 61298-2).
3) Outside the specified beam angle, the energy of the radar signal has a level
which is reduced by 50 % (-3 dB)
4) EIRP: Equivalent Isotropic Radiated Power
LEVEL TRANSMITTER 8136 • 4 … 20 mA/HART - two-wire 63
11 Supplement
41783
-EN
-
120316