Myron L 9PTK with FCE Free Chlorine User Manual
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2. Measuring ORP
1.
Ensure the 9P is in ORP mode (ref. ORP/FC
E
Mode Selection,
pg. 21).
2.
Remove protective cap by rotating while grasping and pulling up.
3.
Rinse sensor well and cell cup 3 times with sample to be
measured. Shake out each sample to remove any residual liquid.
4.
Refill both sensor well and cell cup with sample.
5.
Press
.
6.
Take reading.
7.
Press ms to store reading in memory, if desired.
imPOrtant: After use, fill pH/ORP sensor well with Myron L
pH Sensor Storage Solution and replace protective cap. If
Myron L pH Sensor Storage Solution is unavailable, you can
use a strong KCl solution, a pH 4 buffer, or a saturated solution
of table salt and tap water (ref. Cleaning Sensors, 2. pH/ORP,
pg. 52). Do not allow pH/ORP sensor to dry out.
J. Measuring Free Chlorine Using FC
E
The FC
E
function can be used to measure discrete samples, flowing
solution and bodies of water. Measurement technique is particular to the
type of sample. For accurate results, use the FC
E
Flow Method described
in section 2 below to measure discrete or flowing samples. Use the FC
E
Immersion Method described in section 3 below in situations where the
9P can be dipped to obtain a sample. Read through section 4. FC
E
Best
Practices before you begin.
1. Prepare for FC
E
Measurement
1.
For ease of measurement, set the instrument’s Auto oFF feature
to 75 sec (ref. Auto oFF, pg. 45).
2.
Ensure the FC
E
mode has been activated (ref. ORP/FC
E
Mode
Selection, pg. 21).
3.
Remove protective cap from the pH/ORP sensor by rotating
while grasping and pulling up.
2. FC
E
Flow Method
1.
Empty the pH/ORP sensor well of all storage solution.
2.
Hold the 9P
at a 30º angle (cup sloping downward).
3.
Thoroughly flush the sensor well and cell cup with a steady
stream of the solution you intend to measure by allowing the