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Bourns
Model 4030 Surge Protector Test Set
®
Ramp (DVDT)
Setting
To Test DCBD
(DC Breakdown)
To Test
5-pin In-line
Resistance
(feature only
available through
the 5-pin socket)
12
Fast Ramp
To access the internal ramp selection, open up the case (see Battery
Replacement). Locate the Ramp Selection Switch and turn it either
clockwise (slow ramp) or counter-clockwise (fast ramp) until it stops.
The factory default setting is slow ramp (200 V/s). For accuracy of
the Breakdown voltage it is recommended to use the 200 V/s setting,
If faster testing speed is desired, the device can be set to 2000 V/s
for both, AC and DC measurements. In certain cases there may be
a slight increase in the Breakdown voltage at the faster rate of rise.
This increase has no influence on the protection performance of the
protector component or device under test.
Use the appropriate test accessory to make electrical contact with the
test device. Select the terminals to be tested and the test polarity to be
applied using the appropriate button on the face of the tester. Press the
correct button for the desired test and hold until a reading is obtained.
Repeat as necessary for the required number of tests.
Plug in the 5-pin module to the 5-pin socket. Press and hold either
the TIP Ω or RING Ω button. Readings are in Ohms. If the resistance
reading is above 150 Ω, then the unit is considered an OPEN circuit.
Slow Ramp
Ramp
Selection
Switch
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