To order
ET91 is handheld tester for installation and maintenance of networks which allows the user to test FDM systems on power lines, tone frequency systems and FSK telecommunication systems.
Key features
Technical parameters
Parameter |
Value |
Transmission modes |
single frequency and multifrequency |
Frequency range |
100 Hz - 2400 kHz |
Frequency uncertainty, Hz |
2*10-6 ± 1 |
Frequency step, Hz |
1 |
Transmission level, dBm |
-60 to +10 (10-2400 kHz) |
Level resolution, dB |
0,1 |
Level uncertainty, dB |
± 0,3 |
Receiver types |
selective and broadband |
Transmitter-receiver sunchronous mode |
yes |
Broadband noise level testing |
yes |
Pulse noise testing |
yes |
Longitudinal assymmetry testing |
yes |
Nonconformity attenuation testing |
yes |
NEXT and LOSS testing |
yes |
Impedance testing |
yes |
Group trip time testing |
option |
Shorttime disruptions testing |
option |
Phase jitter and frequency offset testing |
option |
Outer attenuator |
option |
Display |
TFT, 320x240 |
Interfaces |
USB |
Memory |
yes |
Battery |
internal |
Power supply |
220 V AC or 12 V DC |
Dimensions, mm |
224 х 160 х 44 |
Weight, kg |
1,5 |
Operating temperature, °С |
-5 to +45 |
Storage temperature, °С |
-40 to +70 |
Specsheet download.
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