Myron-l 532M1 User Manual download pdf (Page 2)

1. Turn the Range Switch to the desired range. If you don’t

know which range to use, set it to 1000.

2. Rinse the cell cup three times with the sample you want

to test. (For very hot or very cold samples see

TEMPERATURE COMPENSATION below.)

NEVER FILL THE CELL BY DIPPING THE METER INTO

WATER!

3. Fill the cell with another sample to at least 1/4” (6mm)

above the upper electrode.

4. Press the black button.

5. Read the dial value indicated by the pointer. If the

pointer is very low on the left or goes off the scale to the

right, try the next lower or higher range.

6. Multiply the dial value by the range setting to determine

parts per million (ppm) Total Dissolved Solids on the

532T models or the conductivity in micromhos (µmhos)

on the 532M1.

7. If the pointer goes off the scale to the right on the x1000

range, try RANGE DOUBLING (see inside) or an RE-10

Range Extender (see ACCESSORIES).

NOTE:

When you are nished with the meter, RINSE THE CELL

CUP with clean water, preferably distilled or deionized.

TEMPERATURE COMPENSATION: For very hot or very

cold solutions let the three rinse samples each remain in

the cell for several seconds. Then immediately ll the cell

with the sample you want to test (step 3 above). This

allows the automatic temperature compensation feature

time to work properly.

CAUTION

DO NOT use with samples hotter than 160ºF (71ºC).

The readings WILL NOT be accurate.

DO NOT splash solvents such as lacquer thinner,

acetone, benzene or chlorinated solvents on the plastic

case.

DO NOT x or modify the meter. That will void your

warranty. See SERVICE for details or consult Myron L

Company.

DO NOT DIP THE INSTRUMENT INTO WATER. If water

does get inside the instrument, see MAINTENANCE for

instructions on drying it.

STANDARD SOLUTIONS: A Standard Solution has a

known conductivity and ppm. Your meter was calibrated at

the factory using NIST traceable Standard Solutions. You

can keep your meter accurate by using these same

Standard Solutions. To pick the right Standard Solution for

your meter see ACCESSORIES.

CHECKING CALIBRATION

1. Turn the Range Switch to the x1000 range.

2. Test a sample of appropriate Standard Solution.

CAUTION: Throw the Standard Solution away as you use

it. Don’t put the used samples back in the bottle.

3. If the DS Meter does not indicate the same value as is

on the Standard Solution bottle’s label, rst clean the

cell. For directions on how to do this see CELL inside.

Rinse the cell thoroughly and test the Standard Solution

again. If the DS Meter still does not indicate the correct

value, recalibrate it as described below.

TO RECALIBRATE THE METER

1. Remove the bottom cover using ngernails or a small

screwdriver to loosen the front or rear edge. Identify the

three Calibration Controls (see photo below left) so you

can nd them by touch while calibrating.

2. Test another sample of the Standard Solution (be

careful to not to splash solution inside the meter).

3. Adjust the Master Calibration Control until the meter

indicates the value that is on the Standard Solution

label.

4. The Master Calibration Control adjusts all ranges. For

best accuracy in the lower ranges, use the

recommended Standard Solutions for the x100 and x10

ranges. Use the x100 and x10 trimmers to recalibrate

those ranges as in steps 2 and 3 above.

5. Turn the Range Switch to “S” and press the button.

Compare the meter reading to the INTERNAL

STANDARD value on the meter’s bottom label. If they

are noticeably different, mark the new value in place of

the old one.

NOTE:

A 532T (ppm) Meter may be calibrated to read either

442 or NaCl parts per million, but not micromhos. A

532M1 (conductivity) Meter may only be set to read

micromhos.

INTERNAL STANDARD: An INTERNAL STANDARD value

for each meter is on the label on the bottom cover of each

meter. Use it between normal calibrations as a eld check

of your meter’s accuracy.

To verify your meter’s calibration:

1. Turn the Range Switch to “S” and press the button.

2. If the reading matches the INTERNAL STANDARD value

on the bottom label, your meter is in calibration. If not,

see FIELD CALIBRATION.

NOTE:

The feature described above is intended as a quick eld

calibration check, or for using the range doubling

technique. It is not a replacement for calibration with

Standard Solution.

USING YOUR METER CALIBRATION

Battery Strap

Master Calibration Control (X1000)

Lower Electrode

(inside cell)

X100

Trimmer

X10

Trimmer

1 2 3 4

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Myron-l 532M1 User Manual Page 2

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