Tokyo Keiki KRG-10, User Manual

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2-1
Chapter 2 Installation
2.1 Note
2.2 Appropriate location for installation
For stable measurement, please keep following conditions,
(1) Non-centered position: Installed at center of the tank may cause of noise as symmetrical
disturbance.
(2) 200mm from tank wall: Antenna center should be better to keep more than 200mm from the tank
wall to propagate enough microwaves.
(3) +/- 1deg horizontal balance: Please keep less than 1 deg against nozzle flange surface to get better
signal strength to liquid surface.
(4) For rod antenna and PTFE sealing antenna, it must be used flange (optional), seal gasket (out of
scope) and O-ring (accessory), to satisfy protection class IP66 or IP67. Also when mounting the
flange, please tighten depending on the size of the bolt properly .
2.2.1 Cone antenna
Please keep antenna tip exposed to tank inside over 10mm for stable measurement.
NOTE: In case that antenna tip is buried inside nozzle, it may cause noise reflection.
Fig. 2.2.1 Installation example of cone antenna
CAUTION
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Installation at inappropriate location or improper installation procedure may cause incorrect
measurement. Please refer to this manual for proper installation.
・
Please arrange installation in accordance with local radio regulation.