The KDZD3800A handheld lightning protection component tester is used to measure various performance parameters of varistors (MOVs) and gas discharge tubes (GDTs). The instrument has high-voltage short-circuit protection and overcurrent protection functions, as well as parameter setting, high-voltage limit setting, boost speed setting, qualified range setting, qualified judgment screening, automatic range adjustment and other functions. It also has single piece testing mode and continuous testing mode functions, suitable for batch component testing. KDZD3800A also has insulation resistance, absorption ratio, and polarization index testing functions.

The instrument has an output voltage of up to 3000V, a starting action voltage of U1mA, a measurement range of 50-3000V, a leakage current measurement range of 0-1000uA, and a DC breakdown voltage measurement range of 50-3000V. It has good repeatability, accuracy, reliability, testing stability, and anti-interference ability. The instrument is used for testing the performance parameters of overvoltage protection components such as lightning arresters, surge protectors, varistors, metal ceramic discharge tubes, vacuum lightning arresters, etc.

The KDZD3800A handheld lightning protection component tester adopts a touch color screen Chinese interface, with direct functions, one click measurement, and simple and fast operation. Users do not need to memorize the operation method, and clicking the "HELP" button on the screen will pop up the operation method, effectively guiding users to operate the instrument. At the same time, the instrument adopts a large capacity rechargeable lithium battery with data storage function, which can automatically store 3000 sets of test results containing date and time. The touch screen is convenient for users to view historical records, USB data upload and export functions, as well as automatic shutdown, low battery warning and other functions.

The instrument has shockproof, dust-proof, and moisture-proof structures, and the whole machine is beautiful, sturdy, and durable, suitable for harsh working environments. It is a commonly used instrument for meteorological lightning protection, power, communication, electromechanical installation and maintenance, lightning protection component manufacturers, and industrial enterprise departments.

KDZD3800AA: Output voltage ranging from 0 to 3000V.
KDZD3800A: Output voltage 0-3000V; Insulation resistance test 0.5M Ω~10G Ω

Measurement function	output	measuring range	measurement accuracy	resolution ratio
varistors	电压 0～3000V	50～3000V	±2％rdg ±3dgt	1V
	电流 0～1.5mA	0～1000μA	±2%rdg ±10dgt	0.1uA
discharge tube	电压 0~3000V/1.5mA	50～3000V	±2%rdg ±10dgt	0.1uA
insulation resistance	500V	0.5MΩ~2GΩ	±5%rdg ±10dgt	0.1M
	2500V	2.5M Ω ~ 10G Ω	±5%rdg ±10dgt	0.1M

Other technical parameters
Power supply: DC 7.4V 2600mAh rechargeable lithium battery (continuous standby for more than 3 hours)
Measurement method: DC voltage drop method
Shifting: Fully automatic shifting
Display mode: touch color screen
LCD size: 108mm × 65mm
Host size: 212mm × 175mm × 76mm
Quality: Approximately 1200g
Test lines: one red 1.5 meters and one black 1.5 meters each; 2 crocodile clips, 2 probes
Boost speed setting: There are a total of 5 boost levels
High voltage limit setting: adjustable in steps of "250V", up to 3000V
Qualified range setting: Yes
Qualification judgment condition setting: Voltage or leakage current can be set as the qualification judgment conditions
Qualified judgment reminder: buzzer prompts, qualified sound once, unqualified sound three times
Insulation resistance testing function: Insulation resistance (Mohm), polarization index (PI), absorption ratio (DAR) testing
Data storage: Automatically store data during testing, including 1000 sets of varistors, 1000 sets of gas discharge tubes, and 1000 sets of insulation resistors. Visual indication of used and available storage space.
Data search: Yes
Overflow display: The symbol "9999.99" indicates overflow when the range exceeds the limit
Test mode: Single test: One click test without pre setting; Continuous: preset voltage can be set, and continuous testing is fast and fast.
Data upload: USB interface, test record data can be uploaded to the computer and exported in Excel format.
Battery voltage: Battery level indicator display, reminding to charge in a timely manner when the battery voltage is low
Automatic shutdown: automatically shuts down after 25 minutes of no operation
Power consumption: standby: about 140mA, measurement: about 830mA