•
Application-specific reflections can result in both overreaches and “holes”
(destructive interferences).
•
Other factors that can significantly impact the sensing range include:
°
Quality of the transponder. The quality depends on the antenna gain, the inte‐
grated transponder IC and its sensitivity, the reflected energy.
°
Material of the carrier object (plastic, wood, metal)
°
Objects between the device and transponder that can affect the UHF field
(items, liquids, people)
In addition to the read results, the RFU device can also output diagnostic data that pro‐
vide an indication of the write and read quality. This data can be used to achieve opti‐
mum read results when setting up the system.
The radiation pattern shown here for the device’s antenna was obtained in a repro‐
ducible environment (absorber chamber as a reflection-free space) for illustrative pur‐
poses. The diagram may therefore only have limited applicability to your specific appli‐
cation. The diagram shows how the UHF field propagates in a reflection-free space, but
cannot be used on-site to draw any conclusions on the likely sensing range in a real
application.
–33
–30
–27
–24
–21
–18
–15
–12
–9
–6
–3
0°
15°
30°
45°
60°
75°
90°
105°
120°
135°
150°
165°
180°
–165°
–150°
–135°
–120°
–105°
–90°
–75°
–60°
–45°
–30°
–15°
2
1
0
Figure 4: Radiation pattern of the integrated antenna of the RFU61x (typical): Measured antenna
gain in dBic at 866.5 MHz, LHCP (left-hand circularly polarized)
1
Horizontal plane (azimuth)
2
Vertical plane (elevation)
3.2.3 Scope of delivery
The delivery of the device includes the following components:
Table 2: RFU61x: scope of delivery
No. of
units
Component Notes
1 Device in the version ordered
(region assignment)
RFU61x-106xx
The M12 and M8 electrical connections sealed with
tightly-fastened protective plugs or caps.
The joint side cover for the USB interface and the
memory card slot is closed and screwed tight.
3 PRODUCT DESCRIPTION
16
O P E R A T I N G I N S T R U C T I O N S | RFU61x 8024536//2019-08-30 | SICK
Subject to change without notice
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