Appendix A: Sample Size Vs. Head Height - Global Water WS700 Manual

Appendix A: Sample Size Calibration
Use the following graph to see how sample size changes with head height. The Sample
Size controls on the control panel are calibrated at a height of 4 feet. Increasing the head
height decreases the sample size by a predictable amount. To determine the appropriate
Sample Size setting for a desired volume; find the sample size on the horizontal axis, follow
straight up to the line corresponding to your head height, then look across to the vertical
axis and read the setting for the Size control on the control panel.
Actual Sample Size vs. Sample Size Control for Various Head Heights
2000
1800
1600
1400
1200
1000
800
600
400
200
0
0 250
Global Water
800-876-1172 • globalw.com
14 Feet
500 750 1000
Actual Sample Size (ml)
1250 1500 1750
- 15 -
2 Feet
2000 2250