TM 10-4610-240-10
TM 08580C-10/1
T.O. 40W4-13-21
CAUTION
To avoid shorting TDS meter, keep the meter dry. Do not spill water or any other liquid on the meter.
Do not damage meter by removing or twisting cell cup.
NOTE
Be sure cell cup is clean; if required, wash with soap and the purest water available.
(5) Testing.
(a) Rinse cell cup three times with water to be tested.
(b) Fill cell cup to half-inch from top with water to be tested.
NOTE
Do not use range extender when testing product water.
(c) Push range extender into cup, seating the O-ring.
CAUTION
Always start with meter set on the 0 to 5 x 1000 scale. If a lower scale is used first, the meter may be
damaged.
(d) Set range switch to 0 to 5 x 1000 scale.
(e) Press indicator button. If reading is less than 500 switch to the 6 to 5x100 scale range. If reading is
below 50 switch to 0 to 5 x 10 scale range.
(f) Record highest 0-to-5 reading by range factor used to get that reading (10, 100, or 1000) to get
proper value inppm.
NOTE
If using the range extender, multiply this value by 10.
(g) Remove range extender and thoroughly rinse extender and cell cup three times using purest water
available. Wipe dry with clean cloth.
12-16. PREPARATION FOR MOVEMENT
.
a Backwash ROWPU filters (paragraph 2-10) and clean R.O. elements (paragraph 2-13).
b Shut off ROWPU normally (paragraph 2-14).
c Remove strainer and hose from water source.
d Drain ROWPU pipes, filters, and connectio: s
n
(1) Open seven drain valves (paragraph 2-2i)
(2) Open five vent valves (paragraph 2-7b).
2-80
