LLC "ETMS"
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5
1.2
Technical specifications
Technical specifications of ZET 7152-N-VER.3 are shown in
Table 1.1 Technical specifications of the
Characteristics
Values
Measuring channels specifications
Amount of measuring channels
6
Measuring axes direction
Measuring axis Z is orthogonal to the base and
is forwarded towards the lid of the
seismograph, while axes X and Y – are
parallel to the base
Nominal range of operating frequencies by
measuring axes X, Y, Z:
from 0,3 up to 400 Hz
Relative measurement error for axes X, Y, Z,
max
6 % (ZET 7152-N)
10 % (ZET 7156)
Max. measured value
±8 g (ZET 7152-N)
20 mm/s (ZET 7156)
Noise factor in operating frequencies range,
max
0,2 mg (ZET 7152-N)
0,0001 mm/s (ZET 7156)
Sampling rate by channels
30, 125, 250, 500, 1000, 2000 Hz (ZET 7152-
N)
1, 8, 16, 32, 64, 128 Hz (ZET 7156)
Primary transducer control
Integrated electrical excitation system of
sensing elements with actuator
yes
Primary transducer power control
yes
Off-line mode
Off-line mode operation time, max
18 h
Battery type
lead
Integrated non-volatile memory volume
32 Gb
Time of data recording to integrated SD-card at
500 Hz sampling frequency
Over 1000 h
Synchronization parameters
Synchronization types
GPS or PTP (IEEE1588)
Clock oscillator accuracy
0,1 ррm
General specifications
Power voltage
16-27 V
Consumed power
4 W
Data interface
Ethernet and USB 2.0
Dust and water resistance rating
IP65
Average lifetime
10 years
Weight (without control panel), max
6,5 kg
Dimensions (without control panel), max
base diameter: 160 mm
height: 260 mm
Operating temperature range
-10 … +50
°С