OPERATION OF TOTAL DISSOLVED SOLIDS
TEST SET - continued
Figure 2-5. Total Dissolved Solids Meter
Operate the meter. See figure 2-6.
If AC to DC adapter (1) is being used, connect it to a source of 120 VAC power and check meter (2)
adjustment as follows.
(a) With meter (2) off, adjust pointer (3) to zero by turning meter zero adjust screw (4).
(b) Turn range switch (5) to S position.
(c) Press button (6) and compare meter reading with internal standard value on label attached to
bottom cover (7). If reading is different, remove bottom cover and adjust the master calibration
control (8) until it matches. Attach bottom cover if removed.
If the meter does not function per the following procedures, see troubleshooting.
Turn the range switch (5) to 1000.