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【Determining the best frequency】
Switch frequencies to identify the magnitude stability
from the Fluctuation Width (level bar)
Fluctuation width (Big)
40 90
I
Level numeric value (ex.)
When the fluctuation width of the bar graph is large (unstable): Selected frequency is inappropriate
Fluctuation width (Small)
40 90
I
Level numeric value (ex.)
PRINCIPLE & USAGE
3-3 Proper use of Frequency
There are 3 frequencies available.
Direct Mode: 83kHz, 27kHz, 8kHz, MIX
Induction Mode: 83kHz, 27kHz
The lower the frequency becomes the longer the distance
between transmitter and receiver.
■Direct Mode
Appropriate selection of frequency
83kHz:
for short pipes, branch pipes, and pipeline detections
with mechanical Insulated joints.
27kHz:
for cables, and pipeline detections with welded joints
8kHz:
for cables and long-distance pipeline detection with
electrical conduction joints, and trace wires
MIX for 3 types: Simultaneous output (83kHz, 27kHz, 8kHz)
POINT : Use the MIX Mode to select the best frequency.
POINT : When in the Mix Mode, the Transmitter operates at
a lower output.
■Induction Mode
Appropriate selection of frequency
83kHz: The default frequency for ordinary pipeline detection and
congested areas with multiple utilities.
27kHz: for Long-distance single pipeline tracking. Select this
frequency if the fluctuation of the bar graph is stable.
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