Oakton TDSTestr 10, TDSTestr 20 Instruction Manual
Before you Begin:
Remove electrode cap. Switch unit on for 15
minutes to stabilize the batteries. Soak electrodes
for a few minutes in alcohol to remove oils.
Caution: Never immerse the electrode above
color band! This will damage instrument electronics!
Calibration:
Your testr features push- button calibration at
two points (one per range). Select a calibration
standard appropriate for each range:
TDSTestr 10:
low range: between 100-999 ppm
high range: between 2.00-9.99 ppt
TDSTestr 20:
low range: between 150 to 1999 µS high range:
between 2.0 to 19.99 mS
It is best to select a standard close to the test
solution value, and one that has a similar chemical make-up to the test solution.
1. Rinse the electrode in tap or deionized water,
then in a known calibration standard.
2. Switch unit on (ON/OFF button).
3. Dip electrode into calibration standard. DO
NOT immerse above color band!
4. Press CAL/CON button to enter Calibrate
mode. ‘CA’ flashes on the display. An
uncalibrated conductivity value close to the
calibration standard value will flash.
5. Wait at least 30 seconds (about 30 flashes) for
the reading to stabilize. Press the HOLD/INC
button repeatedly to adjust reading to match
value of the known calibration standard.
6. Press CAL/CON button to confirm calibra-
tion. The display will show ‘CO’ and then
switch to a calibrated conductivity reading.
7. For second range, repeat steps 1-6.
TDS Testing:
1. Remove cap from electrode. Switch unit on
(ON/OFF button).
2. Rinse the electrode in tap or deionized water,
then in a small portion of test solution.
3. Dip the electrode into the test solution. Stir
once and let the reading stabilize. DO NOT
immerse electrode above color band!
4. Allow time for the Automatic Temperature
Compensation to correct the readings for
solution temperature changes.
5. Note the reading once the display is stable.
Press HOLD/CON button to freeze the reading. Press HOLD/CON again to release the
reading.
6. Press ON/OFF to turn off Testr. If you do not
press a button for 8.5 minutes, the Testr will
automatically shut off to conserve batteries.
Instrument Maintenance:
•
To improve performance, clean the stainless
steel electrodes by periodically rinsing them in
alcohol for 10-15 minutes.
•
Replace all batteries if the display becomes
faint or disappears, or if the readings are
unstable or constant.
•
If drift is detected while electrodes are
continuously exposed to solution for longer
than one hour, allow electrode to fully dry off
periodically.
NOTE: Testr life is dependent on meter and electrode care. If the electrode is exposed to damaging materials, electrode life will be shortened.
Replacing batteries
1. Flip up battery
compartment lid.
2. Remove old
batteries;
replace with
fresh ones.
Note polarity
(shown in
battery
compartment
and in picture
at right).
3. Recalibrate Testr after battery change.
Error Messages:
ER1 Weak batteries—replace
ER2 Wrong/bad calibration standard value, or
electrode is failing.
OR Over range signal, or electrode is not in
contact with solution, or electrode is failing.
–
+
front
Warranty:
The TDSTestr 10 and 20 are warranted against
defects in materials and workmanship for a
period of 6 months from the date of purchase. If
repair, adjustment or replacement is necessary
and has not been the result of abuse or misuse
within the 6 month period, please return the
Testr—freight pre-paid—and correction will be
made without charge. Out of warranty products
will be repaired on a charge basis.
Return of Items:
Authorization must be obtained from your
OAKTON Distributor before returning items for
any reason. When applying for authorization,
please include information regarding the reason
the item(s) are to be returned.
Note: We reserve the right to make improvements in design, construction and appearance of
products without notice. Prices are subject to
change without notice.
Specifications
TDSTestr 10-20 Instructions
TDSTestr 10 20
Range 0 to 999 ppm/ 0 to 1999 µS/
1.00 to 9.99 ppt 2.0 to 19.99 mS
Resolution 1 ppm/ 1 µS/
0.01 ppt 0.01 mS
Accuracy ±2% full scale
Calibration two-point push button slope
adjustments (one in each range)
Calibration 100 to 999 ppm 150 to 1999 µS/
Standard 2.00 to 9.99 ppt 2.0 to 19.99 mS
Operating
32 to 122ºF / 0 to 50ºC
Temperature
ATC 32 to 122°F / 0 to 50°C
(1.11% per °F / 2% per °C)
Power Four 1.5 V alkaline batteries
(Eveready A76BP; supplied)
20 hrs. continuous use
Alternate replacement Model
Eveready 303 silver oxide,
70 hrs. continuous use.
Dimensions 5.9" x 1.7" x 1" (151 x 42 x 24 mm)
Weight 3.25 oz (90 gms)
Loading...