Operating Instructions
EcoTestr pH 2 Waterproof Pocket Tester
Eutech
Order Code
Oakton
Order Code
Description
ECBU4BT
00654-00
pH 4.01 buff er solution, 480 ml bottle
ECBU7BT
00654-04
pH 7.00 buff er solution, 480 ml bottle
ECBU10BT
00654-08
pH 10.01 buff er solution, 480 ml bottle
ECRE005
00653-04
Storage solution for pH sensor, 480 ml bottle
ECDPCBT
00653-06
Protein remover solution, 480 ml bottle
Conditioning Before First Use:
Precipitation of the sensor electrolyte may cause white
crystals to form around the cap. This is normal and does not aff ect the tester’s performance.
1. Fill the transparent cap of the tester with 20 mm of tap water
2. Recap the tester and soak* tester for one hour
3. Rinse the cap after use
4. The sensor is now activated and ready for use
Testing:
1. Remove cap and press
to turn on the tester
2. Dip sensor in at least 20 mm of test solution
3. Stir once and let the reading stabilize. Note the measured value
4. To hold reading, press
. Screen fl ashes
HO
once, then displays measurement
with blinking unit (pH) to indicate that tester is in the hold mode. Press
again to
cancel hold mode (
HC
)
5. Press
to shut the tester off
Note:
Tester automatically shuts off after 8.5 minutes of non-use to conserve batteries.
Calibration:
The tester is factory calibrated. However, to ensure accuracy, regular
calibration is recommended.
1. This tester allows up to 3-point calibration. Start with pH 7.00 buff er
2. Press
to turn on the tester
3. Dip sensor in 20 mm of standard solution, stir gently and wait for the value to
stabilize at or near pH 7.00
4. Press
to enter the calibration sequence. Display fl ashes
CAL
momentarily, then
shows a fl ashing default reading
5. To confi rm calibration, press
and wait for the auto confi rmation (
En
)
6. You have successfully completed the fi rst calibration point
7. To obtain your second and third calibration points, proceed to the next buff er value
(pH 4.00 or pH 10.00) and repeat step 3 - 6
8. To abort calibration, press
to escape (
ESC
)
Maintenance:
1. Rinse sensor in tap water after each use
2. In harsh samples, take readings quickly, then rinse sensor with de-ionized water
immediately to remove residues and prevent electrode contamination
Useful Notes:
1. To avoid cross contamination, rinse between samples and calibration standards with
de-ionized water
2. To maintain tester accuracy, use tester regularly or calibrate at regular intervals as required
3. For long-term storage, fi ll cap with 20 mm of storage solution (NOT de-ionized water)
and replace cap*. This will keep sensor conditioned and ready for next use
* The tester cap is not leak-proof. Please keep tester upright during soaking.
LIFT
LIFT
LIFT
Figure 1:
Removing battery cover
to change batteries
Battery
cover
Step 2
Lift and push up
Step 1
Lift and hold
Changing Batteries:
1. To remove batteries, lift up the front battery cover to release the front catch. Push up
and hold in that position
2. Next, lift the pocket clip to release the back catch and slide upwards to remove the
battery cover (Figure 1)
3. Replace old batteries with fresh ones. Note polarity as shown in battery compartment
4. No re-calibration is required after battery change. The tester’s non-volatile memory
function retains calibration settings
Error Messages:
1.
bA
– Batteries are weak and need replacement
2.
Err
– Wrong or bad buff er value (out of range) and/or the sensor is failing.
Use fresh buff er
3.
Or/Ur
– Over or Under range signal, or sensor is contaminated/damaged/not
fully immersed
Reset Option:
Reset option allows you to restore the calibration back to factory
default settings.
1. Press
to turn off tester
2. Press and hold
, then press
to turn the tester on. The display shows a
fl ashing
rS
(reset)
3. Press
again to confi rm reset (
En
) or press
to escape (
ESC
) reset option
Warranty:
This tester is supplied with a warranty against manufacturing defects for a
period of ONE year from date of purchase.
Accessories:
