Thermo Fisher Scientific EcoTestr pH 2 - Manual (Page 2)

EcoTestr pH 2 Waterproof Pocket Tester
Operating Instructions
Eutech Order Code Oakton Order Code Description
ECOPHTEST2
35423-10 EcoTestr pH 2
ECPOUCH01 35624-45 Soft carrying case with belt-loop
ECBU4BT 00654-00 pH 4.01 buffer solution, 480 ml bottle
ECBU7BT 00654-04 pH 7.00 buffer solution, 480 ml bottle
ECBU10BT 00654-08 pH 10.01 buffer solution, 480 ml bottle
ECRE005 00653-04 Storage solution for pH sensor, 480 ml bottle
ECDPCBT 00653-06 Sensor cleaning 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 affect the tester’s performance.
1. Remove the transparent cap and add 20 mm of tap water or pH buffer
(approximately ½ full)
2. Recap the EcoTestr and soak* for one hour (or less if sensor was recently hydrated)
3. Rinse the cap after use
4. The sensor is now activated and ready for use
Measurement:
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 off
Note: Tester automatically shuts off after 8.5 minutes of non-use to conserve batteries.
Calibration: The EcoTestr is factory calibrated. However, to ensure accuracy, regular
calibration is recommended. Note: Calibration standard(s) sold separately.
1. This tester allows up to 3-point calibration. Start with pH 7.00 buffer
2. Press
to turn on the tester
3. Dip sensor in pH buffer, stir gently and wait for the value to stabilize
4. Press
to begin the calibration. Display blinks CAL momentarily, then blinks the
default reading
5. To accept the calibration, press . If successful, ( En ) is shown and after a few
seconds measurement is resumed
6. To calibrate additional point(s), repeat steps 3-5 using pH 4.0 and/or pH 10.0 buffer(s)
7. To abort calibration, press
to escape ( ESC )
Maintenance:
1. Rinse sensor with clean water after each use
2. In harsh samples, take readings quickly, then rinse sensor immediately to remove
residues and prevent electrode contamination
Useful Notes:
1. To avoid cross contamination, rinse between samples and calibration standards with
clean water
2. To maintain tester accuracy, 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
4. Not recommended for prolonged use with solutions containing heavy metals,
proteins, tris, or sulfides which will clog the junction leading to slow response and
eventual failure
* The tester cap is not leak-proof. Please keep tester upright during soaking.
Changing Batteries:
1. To remove batteries, hold the tester on the left hand with the left thumb slide under
the back clip of the cover. This will release the back catch
2. Next, hold the cover with your right hand, at the same time release the front catch
with your right thumb. Slide up 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
Your EcoTestr includes (4) pre-installed 1.5V alkaline batteries. LR44 or A76 battery types are
suitable and commonly available. Replace all (4) batteries together. Waiting too long to replace
the batteries can lead to inaccurate readings and is the most common cause of problems.
Error Messages:
1.
bA – Batteries are weak and need replacement
2. Err – Wrong or bad buffer value (out of range) and/or the sensor is failing. Use
fresh buffer. Replace batteries. Note: when sensor fails, it cannot be replaced
3. Or/Ur – Over or Under range signal; sensor is dry/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
flashing rS (reset)
3. Press again to confirm reset ( En ) or press to escape ( ESC ) reset option
Warranty: This instrument is supplied with a warranty against manufacturing defects
for a period of one year from date of purchase.
Tester & Accessories Ordering Information:
Figure 1:
Removing battery cover
to change batteries
Battery
cover
Step 3
Slide out
the cover
LIFT FT
Step 1
Slide in
left hand
thumb to
clear the
back
catch
LIFT Step 2
Slide in
right hand
thumb to
clear the
front
catch