2
2. Technical performance
1) sensor: built-in TEV sensor, ultrasonic sensor
2) range of frequency band: TEV: 3M-60MHz; ultrasonic: 40KHz
3) measurement range: TEV: 0dB-80dB; ultrasonic: 0dB-40dB
4) Tap: TEV: 0 -3 tap, total 4 adjustable taps; ultrasonic: 1 tap
5) maximum pulse / cycle number: 600
6) measurement display: current real-time value, historical maximum value, real-time oscillogram,
fingerprint diagram, trend diagram, pulse count
7) trigger mode: internal / external synchronization trigger
8) Power-on self-test function
9) data storage, query playback and derivation functions
10) interference suppression function
11) alarm threshold setting and indicating function: partial-discharge alarm indication (the color
indicator bar at right side), tap shift indication (suggest shifting tap in case of red), battery
power-quantity indication.
12) working power supply: high-capacity lithium battery pack, working for 6 hours with one time
charge.
13) peripheral storage interface: 16G MicroSD card
IV. Appearance of equipment
4.1 Appearance diagram of handheld partial-discharge patrolling measurement instrument
No.
Instruction
1
Built-in TEV sensor
2
Built-in ultrasonic sensor
3
External sensor signal interface (using
the special signal-line to connect the
sensor, for expanding backup)
4
External synchronization interface
5
Headphone jack
6
Charging interface
7
USB interface
8
SD card slot
