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> Fluke ctc network voltage detector C9970
Fluke ctc network voltage detector C9970
FLUKE CTC Network Voltage Detector C9970
This is a nice voltage detector which is very clean and in very nice condition.
We performed the following periodic performance tests on the unit (according to the directions in the manual) and it passed these tests:
No other tests were performed.
Included with this sale, are the following items. All are in excellent condition, except where otherwise noted:
* Storage Bag (shows light wear - maybe some grease smudges, but no tears, zipper works)
Theory of Operation (From the Manual):
"The Voltage Detector uses electronics and high-voltage mechanical design to indicate the presence of dangerously high AC and DC voltages. To do so, it first determines the voltage difference between the user's body and the object being tested. Then it compares that difference to an internal safety reference. If the voltage difference exceeds this reference, the Voltage Detector indicates danger. No interpretation of the reading is requires.
The capacitance between the handle of the Voltage Detector and the user's hand is part of the measuring circuit and can affect the sensitivity of the Voltage Detector. Further, voltages induced onto the user's body can also affect readings. Such voltages can be induced when the user is isolated from ground while working aloft near power transmission lines. These induced voltages can cause the Voltage Detector to indicate danger when none actually exists. These induced voltages are harmless, but must be discharged. The correct procedure is described under Aerial Testing in the Operation section of this handbook."
