Specifications – Hach-Lange 3400 sc User Manual
Page 9

5
Specifications
Table 3: Sensor Cell Constants and Measuring Ranges
Sensor Cell Constant
Inherent Measuring Range
Conductivity (µS/cm)
Resistivity (Mohm)
TDS
Salinity (PPT)
0.05
0–100
0.002–20
See Note
1
not applicable
0.5
0–1000
0.001-20
See Note
1
< 1
1
0–2000
not applicable
See Note
1
< 2
5
0–10000
not applicable
See Note
1
< 15
10
0–200000
not applicable
See Note
1
< 500
2
1
To determine which cell constant to use, convert the full-scale TDS value to its equivalent conductivity value at 25 °C by
multiplying the TDS value by 2. Find that value in the conductivity column and use the cell constant that corresponds to that
value.
2
Practical upper limit is 280.
Table 4: Digital Gateway Specifications
Weight
145 g (5 oz)
Dimensions
17.5 x 3.4 cm (7 x 1
3
/
8
in.)
Operating Temperature
–20 to 60 °C (–4 to 140 °F)