Features
Applications
■ Rugged industrial case with handle
■ Easy-to-read LCD display, simple operation
■ High accuracy peak reading circuit
■ Wide 10-1000 V test range
■ Precise auto-sensing shutoff
Suitable for testing:
■ Gas tubes
■ Carbon gaps
■ MOVs
■ Zener and avalanche diodes
■ Thyristor devices
■ Finished surge protection products
■ Built-in 5-pin socket for in-line resistance
measurement
4030-0x - Surge Protector Test Set
Description
®
Bourns Model 4030-0x Surge Protector Test Set is a handheld, battery-operated tester designed to measure the clamping voltage
and DC breakdown voltage of most surge protective devices. The Model 4030-0x is suitable for testing gas tubes, carbon gaps, MOVs,
Zener and avalanche diodes and thyristor devices, both as components and as complete protectors.
The Model 4030-0x is a true slow-rise tester because it does not use a pulse transformer. It contains unique test circuitry and a precise
1 mA detector. As soon as 1 mA is conducted through clamping type devices such as MOVs and avalanche diodes, the control circuit
removes the test voltage from the output terminals and displays the clamping voltage on the meter. A low energy capacitive circuit will
discharge through crowbar type protectors such as gas tubes and carbon blocks, and trigger the detector. The breakdown voltage will
be displayed and the test voltage removed.
Operation
Internal switches for ramp speed circuit types are accessed by removing the back cover. They are to be set for the intended
application: 200 V/s for laboratory tests or QC type approvals; 1000 V/s for high-speed testing or sorting. (Factory default is 1000 V/s.)
Pushing the test button applies a linear ramp to the device under test. Sensing circuitry automatically terminates the test when either
the DC breakdown or 1 mA clamping voltage is reached. The test value is maintained on the LCD display until the test button is released.
Specifications
Open Circuit Voltage Rate of Rise......................................................................................................... 200 V/s or 1000 V/s
Maximum Tested Output Voltage........................................................................................................... 1000 V
Useable Measuring Range.................................................................................................................... 10-1000 V
Test Current for Clamping Devices........................................................................................................ 1 mA 10 ꢀ
Test Current for Crowbar Devices ......................................................................................................... >1 A
1
In-line Resistance Measurement ........................................................................................................ <150 ohms
(Open is >150 ohms)
Operating Temperature.......................................................................................................................... 0 to +50 °C
Storage Temperature............................................................................................................................. -10 to +60 °C
Measurement Accuracy......................................................................................................................... 0.5 ꢀ
Power Source........................................................................................................................................ 2 alkaline batteries -
NEMA type 1604A
Battery Life (Based on usable reading up to 750 V)
Alkaline ............................................................................................................................................ >1,500 tests
Lithium ............................................................................................................................................. >3,000 tests
Shipping Weight .................................................................................................................................... 3 lbs.
Warranty................................................................................................................................................ 2 years
Notes:
• For P-type thyristor protectors, breakdown voltage V occurs at the device Zener voltage V . Therefore, the tester will measure
BO
Z
actual V
.
BO
• For N-type thyristor protectors, breakover voltage V is higher than the Zener voltage V . For these devices, the tester will
BO
Z
measure V .
Z
1 Available only when using the 5-pin socket, TIP to TIP , RING to RING
in out in out.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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