TM 10-6630-222-12&P
0004 00
OPERATOR AND UNIT MAINTENANCE MANUAL
(INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
FOR WATER QUALITY ANALYSIS SET: PURIFICATION (WQAS-P)
DESCRIPTION AND USE OF CONTROLS AND INDICATORS FOR ULTRAMETER 6P
Press < /MS> or <
/MR> to step the displayed value toward the standard's value
d.
or hold a key down to cause rapid scrolling of the reading.
e.
Press <CAL/MCLR> once to confirm new value and end the calibration sequence for
this particular solution type.
If another solution type is also to be measured, change solution type now and repeat this procedure.
2.
User Calibration Conductivity/TDS
Instrument must be in USER mode, see Solution Selection section.
a.
Rinse conductivity cell three times with your standard.
b.
Refill conductivity cell with same standard.
c.
Press <COND> or <TDS>, then press <CAL/MCLR> twice in COND/three times in
TDS, "CAL" icon will appear on the display.
Press < /MS> or <
/MR> to step the displayed value toward the standard's value
d.
or hold a key down to cause rapid scrolling of the reading.
e.
Press <CAL/MCLR> once to confirm new value and end the calibration sequence for
this particular solution type.
3.
Resistivity Calibration
Resistivity is the reciprocal of Conductivity. Resistivity is calibrated only if conductivity is calibrated for the same solution
type.
4.
Reloading Factory Calibration (Cond or TDS)
If calibration is suspect or known to be wrong, and no standard solution is available, the calibration value can be replaced
with the original factory value for that solution. This "FAC" value is the same for all Ultrameters, and returns you to a
known state without solution in the cell. The "FAC" internal electronics calibration (which bypasses the electrodes and
cell) is not intended to replace calibration with conductivity standard solutions. If another solution type requires resetting,
change solution type and repeat this procedure.
a.
Press <COND> or <TDS>.
b.
Press <CAL/MCLR>. [If in USER solution mode, press CAL key twice if in
Conductivity, and three times if in TDS to skip over tempco and ratio adjustments].
/MS> key until "FAC" appears and release.
c.
Press <
d.
Press <CAL/MCLR> to accept the factory calibration setting.
5.
pH Calibration
Important: Always "zero" your Ultrameter with a pH 7 buffer solution before adjusting the gain with acid or base buffers,
i.e., 4 and/or 10, etc.
a.
pH Zero Calibration
Rinse sensor well 3 times with 7 buffer solution.
Refill sensor well with 7 buffer solution.
Press <pH> to verify the pH Calibration. (If the display reads 7.0 Skip the pH Zero Calibration.
0004 00-7
