Positron 3782101C/50, User Manual

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Using the Composite Railway-Insulator Tester & Software
36
Figure 15
5.2.1.2 Performing an Angular Scan
Once the Composite Insulator Tester is securely fastened to the sled and the hot stick is
attached, follow this procedure, per Figure 16:
1. Following the instructions of the Tablet Operator, if the LED is
not flashing, press the Push-button on the Insulator Tester
(See Figure 15) and place the Insulator Tester as close as
possible to the high-voltage end of the composite (polymeric)
insulator.
It is best if two operators are working together with a compound hot stick as shown in
Figure 16.
Operator B maintains the upward pressure required to maintain the tester’s
contact with the composite insulator, while Operator A also exerts a tangential upward
pressure to move the tester up along the skirts of the Composite
2. Slide the tester along the Railway Composite Insulator from the high-voltage end toward the
low-voltage end of the insulator. A tone will sound each time a reading is taken at each
insulator skirt (shed).
3. Remove the Insulator Tester from the insulator and wait for the download by the Tablet
Operator.

The Tablet Operator will Download the scanned data to the Tablet/Laptop PC to view
the resulting graph and will Accept or Reject the scan. In either case, the data is wiped
from the Insulator Tester leaving the Insulator Tester ready for the next scan.

The Tablet Operator selects Send Alert to Probe and the annunciator tone attracts the
attention of the Insulator Tester Operator so the Tablet Operator communicates the
next step to the Insulator Tester Operator.

This process is repeated for each insulator.
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OTE
Figure 16
A
B
Performing an Angular Scan

Operator A and B place the Tester on
the high-voltage end of the insulator

Operator B applies a moderate
upward pressure.

Operator A draws the Tester toward
the low voltage end of the insulator
while Operator
B maintains a steady
upward pressure until the scan is
complet
e.

It is important to position the
Operators as shown coordinated with
which the direction the tester is to be
moved.
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OTE
1
2
3