Sampler operation – Hach-Lange SIGMA SD900 Refrigerated Sampler and All Weather Refrigerated Sampler User Manual User Manual
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Sampler operation
The SD900 directly supports the Hydrolab MS5 and DS5 by
automatically detecting the measurement type and unit for each of
the SDI-12 parameters. By default in Hydrolab sondes, the SDI-12
interface is not enabled. To configure a Hydrolab sonde for the
SDI-12 interface, refer to
Appendix B SDI-12 Configuration for a
.
Note: Hydrolab firmware v5.43 or later must be installed in the Hydrolab
sonde for auto configuration.
The SCAN INTERVAL is a user supplied parameter that defines the
periodic interval rate at which the SD900 refreshes measurement
data supplied from the sonde. Shorter intervals allow the SD900 to
be more responsive in setpoint sampling applications, but decrease
battery life.
ft
3
psi
3
NH3+NH4
mg/L-N
4
Nitrate (NO3-)
mg/L-N
2
mV
2
ORP
mV
0
PAR
uE/S/n2
4
pH
pH unit
2
Phycocyanin
cells/mL
2
mV
2
Phycoerythrin
cells/mL
2
mV
2
raw TDG
mV
4
ref PAR
uE/S/n2
4
Resistivity
kOhm/cm
3
Rhodamine
ppb
2
Volts
2
Salinity
ppt
4
Total Dissolved Solids
g/L
2
Temperature
C
2
F
2
K
2
Total Dissolved Gas
mmHG
4
psi
4
Transmission
%
4
volts
4
%660nm
4
v660nm
4
Turbidity
NTU
1
volts
1
1
Indicates the number of digits shown to the right of the decimal point on the SD900 display.
Figure 29 Measurements supported by SD900 (continued)
Measurement
Unit
Resolution
1