TM 10-6630-246-12&P
TM 09241 B-12&P
CAUTION
Do not dip the meter into water being tested to fill the cell cup. Damage to meter can result.
(3) Rinse the cell cup (9) three times with water to be tested. Let the three rinse samples each remain in the cell
cup for several seconds to allow the automatic temperature compensation feature time to work properly. Immediately
proceed to next step.
(4) Fill the cell cup (9) with water to be tested to at least 1/4 inch (6 mm) above the upper electrode (10).
NOTE
Range extender will be needed when testing salt water and may be needed when testing brackish water. In extreme cases,
total dissolved solids exceeds 50,000 PPM (50,000 mg/l), the meter will need to be adjusted for range doubling.
(5) Press the black button (6).
(a) If the pointer (3) is below 0.5 on scale, adjust range switch (5) to 100. If pointer is still below 0.5 on scale,
adjust range switch to 10.
Figure 2-6. Total Dissolved Solids Test
2-15
