Specifications
Range
0.0 to 200.0 μS, 200 to 2000 μS,
2.00 to 20.00 mS
Conductivity
Resolution
0.1 μS, 1 μ
S, 0.01 mS
Relative accuracy
±1% full scale
Normalization temp.
25.0ºC (77ºF)
Temperature co-efficient
0.0% to 10.0%
Calibration points
Up to 3 points
TDS
Range
0.0 to 100.0 ppm, 100 to 1000 ppm,
0.10 to 10.00 ppt (TDS Factor 0.5)
Resolution
0.1 ppm, 1 ppm, 0.01 ppt
Relative accuracy
±1% full scale
Calibration points
Up to 3 points
TDS factor
0.40 to 1.00 (selectable)
Salinity
Range
0.00 to 10.00 ppt
Resolution
0.10 ppt
Relative accuracy
±1% full scale
Calibration points
1
Temperature
Range
0 to 60°C (32.0 to 140.0°F)
Temperature resolution
0.1°C / 0.1°F
Temperature accuracy
From 0 to 50ºC (±0.5ºC / ±0.9ºF + 1 LSD);
from 50 to 60ºC (±1.0ºC / ±1.8ºF + 1 LSD)
General
Display Graphics
Dot matrix 80 x 100 pixel
Auto off
8.5 minutes (from last key press)
Power requirement
Four AAA 1.5 V batteries
Battery life
>150 hours
Water proofing
IP67
Environmental operating conditions
Ambient temperature
5 to 45°C / 41 to 113°F
Relative humidity
5% to 85% noncondensing
Storage temperature
–
20 to 60°C /
–
4 to 140° F
Storage humidity
5% to 85% noncondensing
Probe Dimensions
Length
7.7 in (19.5 cm)
Diameter
0.30 in (0.8 cm)
Appendix 1
Classification of Irrigation Water
Excellent
EC < 0.25 mS/cm
Good
0.25 mS/cm < EC < 0,75 mS/cm
Permissible
0.75 mS/cm < EC < 2.0 mS/cm
Doubtful
2.0 mS/cm < EC < 3.0 mS/cm
Unsuitable
EC > 3.0 mS/cm
Categories of irrigation water quality based on electrical conductivity. (USDA Tech Bulletin 962)
