English 3 - Hach FH950 Basic User Manual

Table of Contents
1 Expanded manual version
2 Specifications on page 3
3 General information
4 Installation on page 10
Section 1 Expanded manual version
For additional information, refer to the expanded version of this manual, which is available on the
manufacturer's website.
Section 2 Specifications
Specifications are subject to change without notice.
2.1 Sensor specifications
Specification
Velocity measurement
Method
Range
Minimum water depth
Accuracy
Resolution
Zero stability
Material
Enclosure rating
Dimensions (L x W x H) 11.9 x 4.3 x 6.3 cm (4.7 x 1.7 x 2.5 in.)
Cable material
Cable lengths
Depth measurement
Method
Accuracy (static)
Range
Resolution
on page 3
on page 5
Details
Electromagnetic
0 to 6.09 m/s (0 to 20 ft/s)
3.18 cm (1.25 in.)
±2% of reading ±0.015 m/s (±0.05 ft/s) 0 to 3.04 m/s (0 to 10 ft/s); ± 4% of
reading from 3.04 to 4.87 m/s (10 to 16 ft/s)
0 ≤ value < 10: 3 decimal places; 10 ≤ value < 100: 2 decimal places;
100 ≤ value < 1000: 1 decimal place; value ≥ 1000: 0 decimal places
±0.015 m/s (±0.05 ft/s)
ABS, glass filled
IP68
Polyurethane jacketed
2, 6.1, 12.2 and 30.5 m (6.5, 20, 40 and 100 ft)
Diaphragm type: absolute pressure with single point calibration
The larger of ± 2% of reading or ± 0.015 m (± 0.504 inches). Steady state
temperature and static non-flowing water.
3.05 m (0-10 ft)
0 ≤ value < 10: 3 decimal places; 10 ≤ value < 100: 2 decimal places;
100 ≤ value < 1000: 1 decimal place; value ≥ 1000: 0 decimal places
5 User interface and navigation
6 Startup and self-test
7 Maintenance on page 20
8 Troubleshooting on page 21
on page 14
on page 19

English 3