Thermo Fisher Scientific pHTestr 10/20/30/10 BNC/Spear - Manual (Page 2)

Temperature Calibration (Only For pHTestr 30)
From the measurement mode,
1. Press the HOLD/ENT button to bring the Testr 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 Testr 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. Before measuring soil pH with the pHSpear, wet your soil sample with distilled water
and ensure that the soil is free of particulates. Even though the pHSpear is
ruggedized, hard surfaces such as stones and pebbles can still cause breakage.
2. Rinse the electrode with 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.
3. 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.
4. 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 via its protective cap.
Electrode Replacement
You can replace the electrode module at the fraction of the cost of a new Testr.
When the Testr fails to calibrate or gives fluctuating readings in calibration standards,
you need to change the electrode.
1. With dry hands, grip the ribbed Testr collar with electrode facing you. Twist the collar
counter clockwise (see picture A). Save the ribbed Testr collar and O-ring for later use.
2. Pull the old electrode module away from the Testr.
3. Align the four tabs on the new module so that they match the four slots on the Testr
(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 Testr 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! 68X068042 Jun 14 Rev 8
Changing Batteries
1. Open battery compartment lid (with attached lanyard loop).
2. Remove old batteries; replace with fresh ones. Note polarity.
Warranty
The waterproof Testrs are warranted to be free from manufacturing defects for 1 year and
electrode module for 6 months, unless otherwise specified. If repair, adjustment or replacement
is necessary and has not been the result of abuse or misuse within the time period specified,
please contact your local distributor for assistance.
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.
Self-Diagnostic Messages
Low Battery
Indicator
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
Over Range /
Under Range
Signal
Or / Ur
(Still)
Electrode is not in contact with solution or electrode is failing
Replacement sensor is not connected properly to the Testr
during sensor replacement
Measured pH value or temperature value (pHTestr30) exceeds
its specified maximum or minimum value
ATC / Or / Ur
(Blinking)
Blinking ‘ATC’, ‘Or’ or ‘Ur’ indicates that there is a short or
open circuit at the built in temperature sensor
Error
Message
Er.0
Temperature calibration error of attempting to calibrate Testr
to a value which is out of range or under range
Er.1
pH calibration error of attempting to confirm a calibration
value which is not within the specified calibration window
Rlbbed collar
Rotate collar
away from you Insert Electrode Module
Electrode Module
Large
O-ring
Small O-ring Small Tab Large Tab
Figure 8: Example of electrode module
fitting alignment
Figure 7: Removal of collar
from tester
Accessories
Item
Eutech Instruments
Order Code
Oakton Instruments
Order Code
pHTestr 10,20,30 Replacement Sensor PHSENSOR03DJ 35624-38
pHSpear Replacement Sensor PHSENSOR04 35634-50
Carrying Pouch pH Testr 10, 20, 30 ECPOUCH01 35624-45
Testr Specifications
Large Screen Testrs pHTestr 10 pHTestr 20 pHTestr 30
pHTestr
10BNC
pH Spear
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 Standard Selection
USA -
4.0/7.0/10.0
NIST -
4.0/6.9/9.2
USA - 4.01/7.00/10.01
NIST - 4.01/6.86/9.18
Calibration Window
(USA Buffer Set Standard)
±1.0 pH
(pH 4.0 & pH 10.0),
±1.5 pH
(pH 7.0)
±1.00 pH (pH 4.01 & pH 10.01),
±1.50 pH (pH 7.00)
Calibration Window
(NIST Buffer Set Standard)
±1.0 pH
(pH 4.0 & pH 9.2),
±1.2 pH
(pH 6.9)
±1.00 pH (pH 4.01 & pH 9.18),
±1.25 pH (pH 6.86)
Temperature No Display 0-50.0°C or 32.0-122.0°F
Temperature Compensation ATC MTC
Temperature Resolution No 0.1 °C / °F
Temperature Accuracy No 0.5 °C / 0.9 °F No
Temperature
Calibration Window No
±(5°C /9 °F)
from default value
0-50.0°C or
32.0-122.0°F (MTC)
Auto Off After 8.5 minutes from last key press
User Reset Yes
Non Volatile Memory Backup Yes
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
Testr 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