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6.5.2.2 GAIN
The Gain can be adjusted to help identify cable faults. Gain changes the vertical
scale making small changes larger and easier to identify.
•
Press [LEVEL]
•
Use [F2] ▼ and
•
Press [F1] to display the distance to the cursor.
6.5.2.3 RANGE
Once the fault is identified, the range can be reduced if the fault is within a lower
range to improve the resolution. The range may be increased if no fault is observed
on the current range. The three ranges are 0 – 1KF, 0 – 4KFt, and 0 – 8KFt.
•
Press [FREQ],
•
Use [F2] ▼ and
for each key press.
•
Press [F1] to display the distance to the cursor.
6.5.2.4 PULSE WIDTH
The pulse width (PW) adjusts how much energy is in the pulse. Increasing the
pulse width can be helpful when the fault is farther away.
•
Press [CFG]
•
[
]
F3
PW
•
Use [F2] ▼ and
left side of the display PW=X.
•
Press [F1] to display the distance to the cursor.
6.5.2.5 ZOOM
The ZOOM feature shows an expanded portion of the display at the current cursor
position. ZOOM is helpful for better placement of the cursor for fault distance
measurement. Position the cursor close to the change in level then use the Zoom
function.
•
Press [CFG]
•
[F2] ZOOM
•
The display now shows more detail of the display at the area the cursor
was positioned.
•
[F1]< and
display.
•
Press [F1] to display the distance then adjust the cursor as needed.
Allied Analogic, Inc.
▲ keys to increase or decrease the gain.
[
]
F3
▲ keys. The ranges change up or down one range
[
]
F3
▲ keys. The current pulse width is displayed on the
[
]
F3
[
]
F3
> keys to move the window to the desired portion of the
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