ARMY TM 10-4610-309-14
MARINE CORPS TM 10802A-14/1
TACTICAL WATER PURIFICATION SYSTEM (TWPS)
0016 00
OPERATOR INSTRUCTIONS
MAINTAINING NORMAL OPERATION UNDER USUAL CONDITIONS
2. For the A-TWPS, check / calibrate the Portable TDS Meter (if not calibrated within the last 30
days) as described in the WQAS-P TM 10-6630-222-12&P.
3. For MC-TWPS, check / calibrate the Portable TDS Meter (if not calibrated within the last 30 days)
as follows:
a. Remove the calibration solutions marked KCl-70 and KCl-18000.
b. Rinse the conductivity cell cup 3 times with product water from the Product Utility Hose.
c. Blow the excess water out of the cup.
d. Rinse the conductivity cell cup three times with the KCl-70 calibration solution.
e. Then fill the cup to the top with calibration solution.
f. Press COND, then press CAL.
g. Use UP DOWN arrows to adjust the value to agree with the calibration solution.
1) KCl-70 should read 70 us/cm
2) KCl-18000 should read 18 ms/cm
h. Press CAL again.
i. Repeat using the KCl-18000 solution
4. Test RO element product flow as follows (see Figure 8):
a. Connect the RO Element Product Flow Tester to the end of the drain/sample tube for the
RO element to be tested. Direct the free end away from the unit.
b. Turn the 3-way RO valve to direct product flow to sample (see Figure 7).
NOTE
The flow tester turns off automatically.
c.
Push and release the DISPLAY button on the flow tester until FLOWRATE appears in the
lower left of the display. Wait until the reading stabilizes and record in the RO Element
Performance Log (WP 0082, GPM column).
3-WAY VALVE IN TEST POSITION
DRAIN/SAMPLE TUBE
TEST CONNECTION
FLOW TESTER
Figure 8. RO Element Product Water Flow Test Setup.
5. Test RO element conductivity as follows (see Figure 9):
a. Rinse the TDS Meter cup 3 times with water from the end of the sample tube, then fill.
c. If the TDS reference (far left of display) is set to "NaCl", press "TDS" and record the
reading in the RO Element Performance Log (WP 0082, TDS column).
0016 00-16
