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Fail-Safe Operation
The 4314KV/KVS incorporate a proprietary current source design that renders them incapable of
delivering excessive voltage or current to the device under test. Maximum Fail-Safe Current values are list
in Table 3.
Range
Fail-Safe Current[3]
2Ω
8mA
20Ω
8mA
200Ω
1.8mA
2kΩ
180µA
20kΩ
18µA
200kΩ
1.8µA
2MΩ
180nA
Table 3 - Fail-
Safe Current Values per Range
Every 4314KV/KVS Igniter Testers are thoroughly tested before the leaves the factory. These tests include
a failsafe test that simulates a "worst case" failure condition. The resulting output current is recorded and
provided on the Certificate of Calibration included with every unit.
Fail-Safe Test (model 4314KVS only)
The 4314KVS is equipped with a Fail-Safe test feature that allows for real time verification of the fail-safe
current. When the Fail-Safe test button is pressed, the unit disconnects the source terminals from the
internal circuitry, simulates a worst case scenario failure, and measures the source current. The value
measured is displayed on the Current window. If the Fail-Safe current measured ever exceeds the max
values listed in Table 3, do not use the device and contact your local Valhalla Scientific Sales or Tech
Support Office.
Содержание 4314KV
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