LaMotte pHTestr Spear - Manual (Page 2)

3 Bars indicates Battery is full (100%)
2 Bars indicates 50% of the battery life is left
1 Bar indicates 25% of the battery life is left
Blinking battery casing indicates the need to replace
batteries with fresh ones as specified by manufacturer
Electrode is not in contact with solution or electrode is
failing.
Replacement sensor is not connected properly to the
tester during sensor replacement
Measured pH value or temperature value (pHTestr30)
exceeds its specified maximum or minimum value
Blinking ‘ATC’, ‘Or’ or ‘Ur’ indicates that there is a short
or open circuit at the built in temperature sensor
Temperature calibration error of attempting to calibrate
tester to a value which is out of range or under range
pH calibration error of attempting to confirm a calibration
value which is not within the specified calibration window
Self-Diagnostic Messages
E r E r E r E r E r. 1 . 1 . 1 . 1 . 1
Low battery
indicator
Or / Ur Or / Ur Or / Ur Or / Ur Or / Ur
(Still)
Over range /
Under range
signal
ATC / Or / ATC / Or / ATC / Or / ATC / Or / ATC / Or /
Ur Ur Ur Ur Ur (Blinking)
E r E r E r E r E r. 0 . 0 . 0 . 0 . 0
Error
Message
Large Screen
pHTestr10 pHTestr20 pHTestr30
pHTestr
pHSpear
Testers 10BNC
pH Range -1.0 to 15.0 pH -1.00 to 15.00 pH
Resolution 0.1 pH 0.01 pH
Relative Accuracy 0.1 pH 0.01 pH
Calibration Points Up to 3 points Up to 3 points
Buffer Set USA - 4.0/7.0/10.0 USA - 4.01/7.00/10.01
Standard Selection NIST - 4.0/6.9/9.2 NIST - 4.01/6.86/9.18
Calibration Window +/-1.0 pH (pH 4.0 +/-1.00 pH (pH 4.01 & pH 10.01),
(USA Buffer Set & pH 10.0), +/-1.50 pH (pH 7.00)
Standard) +/-1.5 pH (pH 7.0)
Calibration Window +/-1.0 pH (pH 4.0 +/-1.00 pH (pH 4.01 & pH 9.18),
(NIST Buffer & pH 9.2), +/-1.25 pH (pH 6.86)
Set Standard) +/-1.2 pH (pH 6.9)
Temperature No 0-50.0°C or No
Display 32.0-122.0°F
Automatic Temperature Yes No ( Fix Temp Compensation
Compensation (ATC) at 25°C)
Temp Resolution No 0.1 °C / °F No
Temp Accuracy No 0.5 °C / 0.9 °F No
Temp Calibration No +/- (5°C /9 °F) No
Window from default value
Auto Off After 8.5 minutes from last key press
User reset Yes
Non Volatile Yes
Memory Backup
LCD Display
Dual
Power Requirement 4 x 1.5V “A 76” micro Alkaline Batteries
Battery life More than 500 hrs
Operating Temperature 0 – 50 °C
Tester Dimensions 6.5 “L x 1.5”dia. (165 x 38 mm) 9.75 “L x
1.5”dia.
(247 x
38 mm)
Weight 3.25 oz (90 gm)
Penetrating electrode total length Not applicable 91 mm
Shaft length Not applicable 31 mm
Penetrating electrode upper diameter Not applicable 12 mm
Shaft diameter Not applicable 7 mm
Specifications
Temperature Calibration (Only for pHTestr 30)
From the measurement mode,
1. Press the HOLD/ENT button to bring the tester to the ‘HOLD’ mode.
2. Press the CAL button for 3 seconds to switch to the °C or °F mode setting
selection screen. Pressing the CAL button continuously for 3 seconds allows you
to toggle in between the °C and °F mode setting selection screen.
3. Release the CAL button to confirm your mode selection and the display will go to
the temperature calibration mode with the upper display flashing. The upper
display shows the current measured temperature reading based on the last set
offset and the lower display shows the current measured temperature reading
based on factory default calibration.
4. Dip the tester into a solution of known temperature and allow time for the in built
temperature sensor to stabilize.
5. Press the HOLD/ENT button to set the upper display to the temperature value of
the solution.
6. Once the new temperature setting is reached, the new value is automatically
confirmed and returns to the measurement mode if no button is pressed after 5
seconds.
Notes: To exit this program without confirming the calibration, press the CAL button
before the automatic confirmation takes place.
Continuous pressing of CAL button (about 3
seconds) to toggle between temperature
setting of degrees Celsius and Farenheit
Release
CAL button
to start
entering the
new
temperature
During calibration, upper display will flash.
Press HOLD/ENT to increase offset up to
+5 °C (+9 °F) from default value. It will
roll over to -5 °C (-9 °F) from default value
and start increasing again.
When the
temperature offset
value is reached,
the new value is
automatically
confirmed if no
key is pressed
for 5 seconds.
Figure 6: Temperature Calibration Sequence ( Only for pHTestr 30DJ)
Electrode Maintenance
1. Rinse the electrode with tap water or electrode storage solution after each
measurement. Care has to be taken not to damage the sensor’s glass electrode
especially while rinsing the pHSpear penetrating tip electrode.
2. In aggressive chemicals, dirty or viscous solutions, and solutions with heavy
metals or proteins, take readings quickly and rinse electrode immediately afterward.
For the pHSpear, the remnants of the semi solid samples on the penetrating
electrode can be removed by rubbing it with some table salt and then rinsing. Mild
detergent can be used to wash the penetrating electrode clean.
3. If possible, keep a small piece of paper or sponge in the electrode cap – moistened
with clean water or electrode storage solution (NOT de-ionized water) – and close
the cap over the electrode. For pHSpear, ensure that the electrode is kept soaked
in electrode storage solution or tap water via its protective cap.
Electrode Replacement
You can replace the electrode module at the fraction of the cost of a new tester.
When the tester fails to calibrate or gives fluctuating readings in calibration standards,
you need to change the electrode.
1. With dry hands, grip the ribbed tester collar with electrode facing you. Twist the
collar counter clockwise (see picture A). Save the ribbed tester collar and
O-ring for later use.
2. Pull the old electrode module away from the tester.
3. Align the four tabs on the new module so that they match the four slots on the
tester (see picture B).
4. Gently push the module onto the slots to sit it in position. Push the smaller
O-ring fully onto the new electrode module. Push the collar over the module
and thread it into place by firmly twisting clockwise.
Note: It is necessary that you recalibrate your tester prior to measurement after an
electrode replacement.
Applications
Water quality testing • pools • spas • aquariums • aquaculture • hydroponics •
ecology studies • water and wastewater treatment • boilers • steam generators •
car washes • sanitation plants • labs • food sectors and more!
Rlbbed collar
Rotate collar
away from you Insert Electrode Module
Electrode Module
Large
O-ring
Small O-ring Small Tab Large Tab
68X068042 11/04 Rev 2
Figure 8: Example of electrode module
fitting alignment
Figure 7: Removal of collar from tester
Changing Batteries
1. Open battery compartment lid (with attached lanyard loop).
2. Remove old batteries; replace with fresh ones. Note polarity
Accessories
I t e m I t e m I t e m I t e m I t e m Eutech Instruments Eutech Instruments Eutech Instruments Eutech Instruments Eutech Instruments Oakton Instruments Oakton Instruments Oakton Instruments Oakton Instruments Oakton Instruments
Order Code Order Code Order Code Order Code Order Code Order Code Order Code Order Code Order Code Order Code
pHTestr 10,20,30 replacement sensor ECPHWPSEN03 OKPHWPSEN03
pHTestr10BNC replacement sensor ECPHWPSENBNC OKPHWPSENBNC
pHSpear replacement sensor ECPHWPSEN04 OKPHWPSEN04
Warranty
The waterproof pHTestr10, pHTestr20, pHTestr30, pHTestr10BNC and pHSpear are warranted
to be free from manufacturing defects for 2 years and electrode module for 6 months. If
repair, adjustment or replacement is necessary and has not been the result of abuse or
misuse within the time period, please return the tester – freight prepaid – 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 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.