Myron L T6/PH - Manual (Page 5)

ACCESSORIES
STANDARD SOLUTIONS
TDS STANDARD SOLUTIONS
Your pDS Meter has been factory calibrated with the appropriate
Standard Solution. All Myron L conductivity Standard Solution bottle
labels show three values: ppm 442, ppm sodium chloride, and
conductivity in micromhos.
442: Unless otherwise specified, the calibration used for all DS Meters
is the "442" standard. The 442 Standard Solutions consist of the
following salt ratios: 40% sodium sulfate,40% sodium bicarbonate,
and 20% sodium chloride. This salt ratio has conductivity
characteristics approximating natural waters and was developed by
the Myron L Company over two decades ago.
Sodium Chloride: For every ppm 442 Standard Solution there is a
ppm sodium chloride (NaCI) solution which wili have the same
conductivity. The parts per million of the equivalent NaCI solution is
on each Standard Solution label. Instruments calibrated to NaCI
standards are set using equivalent NaCI values.
Conductivity: All Myron L Company Conductivity Standard Solutions
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
T2/pH
TOTAL DISSOLVED SOLIDS:
X 10 442-30
X 100 442-300
X 1000 442-3000
with Re-10 442-30,000
pH ZERO 7 buffer
pH GAI N 4 buffer
10 buffer
T6/pH
TOTAL DISSOLVED SOLIDS: 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 pDS Meter in the normal manner. Multiply the
reading by 10.
4. For best accuracy, repeat the complete test with a fresh sample.
5. When finished, 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.
CALIBRATING THE RE-10
1. Calibrate your meter (without RE-10) using Standard Solution
number 442-3000.
2. Fill cell cup with 442-30,000 Standard Solution.
3. Insert RE-10and pressthe button. Multiply the reading by 10 and
compare it with the value on the Standard Solution label. If they
are not the same, the RE-10 must be recalibrated.
NOTE: DO NOT adjust the Conductivity Calibration Control.
4. Adjust the white insert of the Extender as follows: If the reading
is too high—push or tap inward.
If the reading is too low—twist or pull outward with pliers.
NOTE: The Range Extender is factory calibrated to a particular meter.
It should be recalibrated if it is to be used
with another meter.
PORTA PAK
Carrying Case for use with all
Myron L
DS and pDS meters, is
foam-lined and molded of sturdy
ABS plastic.
REPLACEMENT pH SENSORS
Order Model RPY for either T2/pH or T6/pH meters. When ordering,
be sure to include the model and serial number of your meter to
ensure receiving the proper type. Complete installation instructions
are provided with each replacement sensor.
ORDERING
To order accessories contact your nearest stocking distributor, or
the Myron L Company.
WARRANTY & SERVICE
Myron L pDS meters, excluding the pH sensor, have a two -
year warranty. The pH sensor has a 6 month limited warranty.
If an instrument fails to operate properly, check the batteries,
calibrations, and cleanliness of the pH sensor bulb. If it still fails
to properly function, return it prepaid to the Myron L Company.
If, in the opinion of the factory, failure was due to materials or
workmanship, repair or replacement will be made without charge.
A reasonable service charge will be made for diagnosis or repairs
due to normal wear, abuse or tampering. This warranty is limited
to the repair or replacement of the Myron L pDS meter only. The
Myron L Company assumes no other responsibility or liability.
2450 Impala Drive
Carlsbad, CA 920 1 0- 7226 USA
Tel 760-438-2021
Fax 800-869-7668 / 760-931-9189
www.myronl.com
pH Conductivity Instrumentation
Accuracy • Reliability • Simplicity
© Myron L Company 2001 (W) Printed in U.S.A. Specifications subject to change without notice