Features
■ Optional A.C. power adapter
■ Optional C.O. rack mounting kit
■ Non-destructive testing of all standard
telecom protectors
■ User-friendly operation with automatic
power-on, test initiation and rest
■ Heavy duty, spring loaded 5-pin sockets
rated for 1,000,000 operations
■ Long-life lithium batteries
■ Lightweight, hand-held unit for C.O. or
O.S.P. use
4020-01 - Surge Protector Test Set for Telecom
Description
Bourns® 4020-01 Surge Protector Test Set is a hand-held, battery-operated tester designed to test industry standard 5-pin
modules and station protectors. 5-pin modules may be tested for breakdown, insulation leakage, heat coil resistance and
bridge-lifter operation. Station protectors can be tested for breakdown and insulation resistance. The 4020-01 will test
standard carbon, gas tube and solid-state protectors as well as silicon avalanche diode and metal oxide varistor devices.
Operation
Inserting a 5-pin module into one of the blue-coded sockets automatically tests the module for breakdown voltage, insulation
leakage and 4-style heat coil resistance. Test values are maintained on integral LCD meters until the module is removed.
Separate blue-coded sockets are provided for testing tip and ring.
Inserting a 5-pin module into one of the orange-coded sockets automatically tests for proper operation of the special bridge-
lifter circuitry found in standard orange protector modules. Green and red LEDs indicating pass or fail remain lit until the
module is removed. Separate orange-coded sockets are provided for testing tip and ring.
Banana jacks and test leads are provided for testing station protectors. Pushing the test button automatically performs the
breakdown voltage and insulation leakage tests. The test values are maintained until the test button is released.
Specifications
GENERAL
Power Source ...........................................................................................3 NEMA 5024 lithium batteries or external 18 VDC
Battery Life.......................................................................................................................................................... >10,000 tests
Accuracy ............................................................................................................................................................. 1 % ±1 count
Operating Temperature .......................................................................................................................................... 0 to +50 °C
Shipping Weight............................................................................................................................................................... 3 lbs.
DCBD TEST (See notes 1 & 2)
Voltage Rate of Rise ................................................................................................ 2000 V/s or 200 V/ms internally selected
Test Current ..........................................................................................................................................................1 mA ±10 %
Voltage Range..................................................................................................................................................... 0 to 900 volts
LEAKAGE TEST (See note 2)
Voltage Rate of Rise ........................................................................................................................................... 0 to 900 volts
Test Current .....................................................................................................................................................................20 µA
Voltage Range.............................................................................................................................................................2000 V/s
HEAT COIL RESISTANCE TEST
Resistance Range ........................................................................................................................................... 0 to 199.9 ohms
Storage Temperature ..........................................................................................................................................-10° to +60°C
BRIDGE LIFTER TEST
Test for ON State ....................................................................................................................................... 20 mA and 15 volts
Test for OFF State .......................................................................................................................................... 1 mA and 5 volts
Notes:
1. 3-mil carbon blocks - and to a lesser extent, closely spaced gas discharge tubes, can occasionally develop a filament be-
tween the electrodes. On these protectors, a separate burn-out operation is recommended to clear the protector when low
breakdown voltage and/or leakage voltage are indicated.
2. For P-type solid-state protectors, breakover voltage VBO occurs at the device zener voltage VZ. Therefore the tester will
measure actual VBO. For N-type solid state protectors, VBO is higher than VZ and in these cases, the tester will measure VZ.
REV. B
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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