Hach-Lange SIGMA SD900 Refrigerated Sampler and All Weather Refrigerated Sampler User Manual - Manual (Page 64)

62
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
Hydrolab Sonde on page 103 .
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