Myron L M6/PH - Manual (Page 5)

ACCESSORIES
STANDARD SOLUTIONS
CONDUCTIVITY STANDARD SOLUTIONS: Your pDS Meter has
been factory calibrated with the appropriate NIST traceable Standard
Solutions. All Myron L Company Conductivity Standard Solutions
are traceable to the National Institute of Standards and Technology
and are within 1.0% of Potassium Chloride reference solutions. The
concentrations of the reference solutions are calculated from data in
the International Critical Tables, Vol. 6.
pH STANDARD BUFFER SOLUTIONS: Ready to use, Myron L
Company pH buffer solutions are mold inhibited and accurate to
within +0.06 pH units @ 25
°
C. They are traceable to National Bureau
of Standards certified pH references and are color-coded for instant
identification.
RECOMMENDED STANDARD SOLUTIONS
MODEL/RANGE
SOLUTION NUMBER
EP11/pH
CONDUCTIVITY
X10 KCI-70
X100 KCI-700
X1000 KCI-7000
with RE-10 442-30,000
pH ZERO 7 buffer
pH GAIN 10 buffer
M6/pH
CONDUCTIVITY 442-3000
with RE-10 442-30,000
pH ZERO 7 buffer
pH GAIN 4 buffer
10 buffer
RANGE EXTENDER
The RE-10 Range Extender is a useful accessory for testing high
conductivity solutions beyond the normal range of your pDS meter.
Inserting the RE-10 into a sample - filled cell cup increases the
maximum range ten times. Use the Range Extender whenever the
reading is off the scale.
USING THE RE-10
1. Fill the cell cup three times to rinse it, but each time insert the
Range Extender to rinse it also.
2. Fill the cell cup with your sample. Push the Range Extender into
the cell cup, seating the O-ring seal.
3. Use and read the DS Meter in the normal manner. Multiply the
reading by 10.
4. For best accuracy, repeat the complete test with a fresh sample.
5. When you're done testing, remove the Range Extender.
Thoroughly rinse the cell cup and Extender with clean water
(preferably distilled or deionized) to eliminate dried salts build-
up. This is extremely important when the instrument will be used
to test high purity water.