OBS-5+ System
5.2 Accuracy
Mud:
2.0%
of
reading
Sand:
4.0%
of
reading
Pressure:
0.5% of full scale
Turbidity:
1.5% of full scale
5.3 OBS-5+ Sensor
Laser wavelength:
780
nm
Scattering angles (clean water):
105º
to
165º
Drift over time:
<30 ppm per month
Drift over temperature:
<200 ppm per ºC
5.4 Other Data
Maximum sampling rate:
25
Hz
Maximum data rate:
2
Hz
Data capacity:
8
MB/200,000
lines
Battery capacity:
8 A h
Maximum battery life
2
:
3,000
hrs
External supply voltage:
6 to 18 Vdc
External supply current:
55
mA
Serial-data protocols:
RS-232 & RS-485
Maximum housing depth:
300 m (984 ft)
Operating temperature range:
0º
to
40ºC
Storage temperature range:
–20º
to
70ºC
5.5 Dimensions
Length / diameter:
380 mm (15 in) / 60 mm (2.4 in)
Weight:
2.04 kg (4.5 lb)
Weight (submerged):
1.02 kg (2.3 lb)
1
Range depends on pressure sensor option chosen.
2
Sampling interval is two hours and duration is two minutes.
6
Содержание OBS-5+
Страница 2: ......
Страница 8: ...Table of Contents iv ...
Страница 50: ...Appendix A Turbidity Standards A 4 ...
Страница 51: ......
