abem Terraloc Pro 2 - 9 Appendix A. Technical Specification

ABEM Terraloc Pro 2
88
9 Appendix A. Technical Specification
General
Number of channels
12, 24 or 48
Additional channels
Easily obtained by linking two or more units together
Up-hole channel
Yes, 2 additional independent
Sampling rate (selectable)
100 sps – 50 ksps (20 s – 10 ms)
Record length (selectable)
Up to 480 k samples / ch. equivalent to: 9,6 s – 80
min
Pre-trig record (selectable)
0 – 100 % of record length
Delay time
Up to 2 minutes
Stacking
32 bits, up to 999 impacts
Unstack
Remove last shot from stack
Trigger inputs
Trigger coil, make/break, geophone, TTL
A/D converter resolution
24 bits
Dynamic range
(theoretical/measured) 144 dB / >120 dB
Max input signal/ impedance
User selectable 0,5 Vpp, 5 Vpp or 12,5 Vpp
Input impedance
User selectable 3 kΩ, 20 kΩ or 20 MΩ,
Frequency range
DC to 20 kHz
Total harmonic distortion
0,0005%
Crosstalk
-120 dB
Noise monitor
Amplitude
Anti-alias filters
Set automatically based on sampling rate
Geophone connector type
12 and 24 channel instruments: NK-27
48 channel instruments: KPT 55
Power
10 – 28 V DC external power,
2x 12 V 6.4Ah Li-Ion internal batteries
Power consumption
30/60 W (man/acq)
Ambient temp (operating)
-20 to + 55 °C
Ambient temp (storage)
-30 to + 70 °C
Casing
Rugged Al alloy; Meets IEC IP 66
Weight, 24 channels
10 kg
Weight, 48 channels
11 kg
Dimensions (W x L x H)
39 x 21 x 32 cm