Ninglu SIM990 - Specification; Summary; Echo Sounder Tester

3
Specification
Summary
Display screen： 128×64 dot-matrix LCD
Dimension： 235mm×135mm×55mm
Weight： 750g (1.2 kg with bag and cables)
Power supply internal: Rechargeable li-ion battery (12.6 V DC)
Power supply external: 12.6 V/350 mA operation and battery charging
Built-in battery: 12.6VDC 1500mAh
Battery charger： 12.6V/350mA
Working temperature： -15~55℃
Echo sounder tester
Note: Specified for input width greater than 9 ms
Parameter
Alias
Range
Resolution
Accuracy
Input frequency
Ifreq
10 kHz - 999.9 kHz
0.1 kHz
±0.1 kHz
Input width
Iwidth
20 us - 60 000 us
1 us
±1 us
Input period
Iperiod
1 ms - 6 553.5 ms
0.1 ms
±0.1 ms
Input amplitude
Vipp
50 V - 2 500 V
10V
±20%
Output frequency
Ofreq
10 kHz - 999.9 kHz
0.01 kHz
±0.1 kHz
Output bottom width
Obwidth
20 us - 60 000 us
1 us
±1 us
Output bottom depth
Obdepth
0.3 m - 999.9 m
0.3 m
±0.1 m
Output fish width
Ofwidth
20 us - 60 000 us
1 us
±1 us
Output fish depth
Ofdepth
1 m - 999.9 m
1 m
±0.1 m
Output amplitude
Vopp
1 mV - 590 mV
1 mV
±1 mV
Output fish ratio
Ofr
00:00 - 99:99
1
0