Operating Instructions EcoTestr pH 2 Waterproof Pocket Tester
Conditioning Before First Use: Precipitation of the sensor electrolyte may cause white crystals to form around the cap. This is normal and does not a 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 flashes 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 o
Note: Tester automatically shuts o 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 bu 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 flashes CAL momentarily, then shows a flashing default reading
5.To confirm calibration, press 
and wait for the auto confirmation ( En
)
6.You have successfully completed the first calibration point
7.To obtain your second and third calibration points, proceed to the next bu 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, fill 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.
Battery
cover
|
Step 2 |
|
Lift and push up |
|
Figure 1: |
Step 1 |
Removing battery cover |
Lift and hold |
to change batteries |
|
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 bu er value (out of range) and/or the sensor is failing. Use fresh bu 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 o tester
2.Press and hold 
, then press 
to turn the tester on. The display shows a flashing rS
(reset)
3.Press 
again to confirm 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:
Eutech |
Oakton |
Description |
|
Order Code |
Order Code |
||
|
|||
ECBU4BT |
00654-00 |
pH 4.01 bu er solution, 480 ml bottle |
|
ECBU7BT |
00654-04 |
pH 7.00 bu er solution, 480 ml bottle |
|
ECBU10BT |
00654-08 |
pH 10.01 bu 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 |
|
|
|
|
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