Nova-Tech pH 310 User Manual
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pH/mV/°C Data Meter
pH 300 Series
WATERPROOF
MODE
HOLD
ENTER
ON
OFF
CAL
MEAS
MI
▲
MR
▼
SETUP
pH
ATC
READY
MEAS
C
Notes
OPERATING INSTRUCTIONS
Write down the name and information of your OAKTON distributor here.
OAKTON®35618-Series
pH 300 and 31
Portable Waterproo
pH/mV/°C Mete
00806-23
68X248903
I
P
67
R1 1/01
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6. Hold function........................................................................................22
7. Memory functions............................................................................23-24
7.1 Memory Input.....................................................................................................................23
7.2 Memory Recall ....................................................................................................................24
5.3 Taking Measurements..................................................................................................20-21
5. Measurement...................................................................................18-21
4.3 pH calibration................................................................................................................14-15
4.4 Relative mV calibration.....................................................................................................16
5.1 Automatic Temperature Compensation .........................................................................18
5.2 Manual Temperature Compensation..............................................................................19
4.5 Temperature calibration....................................................................................................17
4. Calibration.......................................................................................12-17
4.1 Important information on meter calibration .................................................................12
4.2 Preparing the meter for calibration .................................................................................13
1. Introduction ............................................................................................4
3. Preparation........................................................................................7-11
3.1 Inserting the batteries..........................................................................................................7
3.2 Connecting the electrode and temperature probe.......................................................8-9
3.3 Attaching the electrode holder to the meter..................................................................10
3.4 Inserting the electrode into the electrode holder...........................................................11
2. Display and keypad functions .............................................................5-6
2.1 Display...................................................................................................................................5
2.2 Keypad...................................................................................................................................6
Table of Contents
9. Probe care and maintenance...........................................................40-41
10. Troubleshooting..................................................................................42
11. Error Messages....................................................................................43
12. Specifications......................................................................................44
13. Accessories.....................................................................................45-46
14. Warranty .............................................................................................47
15. Return of Items ...................................................................................47
8.8 Program 6.0: Resetting to factory default settings (pH 310 meter only)
8.6 Program 5.0: Resetting to factory default settings (pH 300 meter only)
8.7 Program 5.0: Setting the real-time clock (pH 310 meter only)
P4.4 Selecting °C or °F (pH 310 meter only)
....................................................................35
.................................37-38
......................36
......................39
P4.1: READY indicator and auto endpoint function....................................................32
P4.2: Selecting number of pH calibration points ..........................................................33
P4.3: Calibration buffer selection sets (pH 310 meter only)
..........................................34
8. Advanced setup functions...............................................................25-39
8.5 Program 4.0: Unit configuration .................................................................................32-33
P3.1 Electrode offset..........................................................................................................30
P3.2 Electrode slope..........................................................................................................31
8.2 Program 1.0: Memory clear...............................................................................................28
8.3 Program 2.0: Viewing previous calibration data...........................................................29
8.4 Program 3.0: Viewing electrode data.........................................................................30-31
8.1 Advanced setup mode overview................................................................................26-27
pH 300 meter......................................................................................................................26
pH 310 meter......................................................................................................................27
32
pH/mV/°C Data Meter
pH 300 Series
WATERPROOF
MODE
HOLD
ENTER
ON
OFF
CAL
MEAS
MI
▲
MR
▼
SETUP
pH
ATC
READY
MEAS
C
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Thank you for selecting an OAKTON meter. This OAKTON portable meter
is a microprocessor-based instrument that measures pH, mV, and temperature.
It’s completely waterproof—and it floats! Your meter has many user-friendly
features, all of which are accessible through the membrane keypad.
This meter includes two electrode holders and batteries.
Please read this manual thoroughly before operating your meter.
1. Introduction
5. mV or relative mV
6. pH indicator
indicator
10. Clock indicator
11. ERRor indicator
Compensation
indicator
(pH 310 meter only)
17. HOLD indicator
18. READY indicator
indicator
2. MEASurement mode
3. CALibration indicator
4. MEMory recall mode
indicator
9.Automatic Temperature
15. Buffer indicator
16. Function ON/OFF
indicator
8. pH buffer selection
(°F available on
pH 310 meter only)
indicator
14. Probe indicator
13. Low battery indicator
indicator
1. SETup mode indicator
14.
13.
7. Temperature indicator
12.
11.
10.
Secondary display
12. MEMory location
9.
15.
AM PM
ATC
pH
OFF
MEM
ERR
C
F
16.
ON
18.
17.
HOLD
READY
pH
SETUP
MEAS
CAL
MEM
R.mV
1.
2.
3.
4.
Primary display
5.
The LCD has a primary and secondary display.
• The primary display shows the measured pH, mV or Relative mV reading.
• The secondary display shows the temperature.
The display also shows error messages, keypad functions and program functions.
2.1
2. Display and Keypad Functions
Display
7.
8.
54
6.
SET....................Press to enter SETUP
MI MR
▲▼
ENTER ............Press to confirm values in Calibration mode and to confirm
..........Press ▲/▼ in setup mode to scroll through subgroups. Also press
CAL/MEAS......Toggles user between Calibration and Measurement mode.
MODE..............Selects the measurement parameter. Press MODE to toggle between
HOLD ..............Freezes the measured reading. To activate, press HOLD while in
pressed, has a corresponding graphic indicator on the LCD.
ON/OFF............Powers and shuts off the meter.
The large membrane keypad makes the instrument easy to use. Each button, when
2.2
Keypad
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SETUP
electrode offset data.
the memory.
mode. SETUP mode lets
you customize meter
preferences and defaults,
and view calibration and
the measured value into memory. MR (memory recall) recalls the
sets of values stored in
selections in Setup mode.
▲/▼ in mV calibration mode to adjust the calibration value.
MI/MR work in the measurement mode. MI (memory input) stores
from sub menus. Press CAL/MEAS again to return to measurement
mode from main menu.
NOTE: Temperature calibration is available from pH calibration mode;
see page 17 for directions.
In advanced set-up mode: Press CAL/MEAS to return to main menu
to enter mV calibration mode.
• If you were in pH measurement mode, press CAL/MEAS to enter
• If you were in mV measurement mode, press CAL/MEAS
pH calibration mode.
pH 310 model only). In pH calibration mode, press MODE to access
temperature calibration.
pH; mV (or relative mV); and date/time (date/time available on
point feature.
pH 310 model only:
measurement mode. To release, press HOLD again.
automatically holds reading after 5 seconds of stability. The HOLD
indicator appears on the display. Press HOLD to release auto end-
When auto endpoint feature is switched on, it
ON
OFF
CAL
MEAS
MI
▲
MR
▼
ENTER
HOLD
MODE
Battery
compartment
Remove these
two screws to
access battery
compartment
Four AAA batteries are included with your meter.
1. Use a Phillips screwdriver to remove the two screws holding the battery cover.
2. Lift off battery cover to expose batteries.
3. Insert batteries. Follow the diagram inside the cover for correct polarity.
4. Replace the battery cover into its original position. Screw cover back into place.
See figure below.
3.1
3. Preparation
Inserting the Batteries
76
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electrodes for use with the pH 300 and pH 310 meters.
6-pin connector (part number 35618-05)
specifically for the pH 300 and pH 310 waterproof meters
3.2
The OAKTON pH/mV meter can use any standard pH, ORP, or ISE electrode with a
BNC connector. For automatic temperature compensation (ATC), this meter requires
a temperature probe with a specialty 6-pin connector.
Use either:
• any electrode with a BNC connector and a separate temperature probe with
• an “All-in-One” combination pH electrode/temperature probe designed
NOTE: Keep connectors clean. Do not touch connector with soiled hands.
See the “Accessories” section on page 45 for a temperature probe and “All in One”
Connecting the Electrode and Temperature Probe
locking ring
temperature probe
top view of 6-pin
connector of
CAUTION: Do not pull on the probe cord or the probe wires might disconnect.
Electrode
(with BNC connector)
Temperature probe
(with 6-pin connector)
2. To remove probe, turn the locking ring counterclockwise on the probe connector.
Pull probe away from the meter.
1. Line up the notch and 6 pins on the meter with the holes in the 6-pin connector.
See figure below.
Push down and turn the locking ring clockwise to lock into place.
CAUTION: Do not pull on the probe cord or the probe wires might disconnect.
To connect the temperature probe:
See figure below.
2. To remove probe, push and rotate the connector counterclockwise. While
holding onto the metal part of the connector, pull probe away from the meter.
socket. Rotate and push the connector clockwise until it locks.
To connect the pH, ORP or ISE electrode:
1. Slide the BNC connector of the probe over the BNC connector socket on the
meter. Make sure the slots of the connector are in line with the posts of the
98
3. Align the flange of the second electrode holder
with the slot of the first holder.
To attach a second electrode holder:
See figure
4. Slide the flange of the second holder into the
slot of the first holder until the tops of the
holders are aligned and secure.
See figure
You can attach the electrode holder in different
positions.
See figure
2. Gently slide the flange of the holder into the
the meter.
slot on the meter. Make sure the holder is
secured properly into the slot.
3.3
Attaching the Electrode Holder
to the Meter
Attaching the electrode holder to the meter
facilitates one-hand operation. Attach two
electrode holders if you have a separate electrode
and temperature probe.
1. Locate the slot on the left hand side of
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C
C
B
A
B
A
NOTE: The holder is designed for probes 12 mm in diameter. Electrodes larger than
of the second holder until the ridge on the housing touches the top of the holder.
12 mm may not fit in the holder. Forcing the electrode into the opening may
damage the holder or your electrode.
1. Insert the pH electrode into the opening of the first holder until the top housing
2. If you are using a separate temperature probe, insert the probe into the opening
of the electrode touches the top of the holder.
Do not use excessive force when inserting electrodes into the holders.
3.4
Inserting the Electrode into the Electrode Holder
1110
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For information on how to calibrate your meter:
• See section 4.3 on pages 14-15 for pH calibration
• See section 4.4 on page 16 for Relative mV calibration
• See section 4.5 on pages 17 for Temperature Calibration of replacement
temperature probes or replacement “All-in-One” electrodes
Program P6.0, page 39 (for pH 310 meter).
When you recalibrate your meter, old pH, Rel mV and mV calibration points are replaced on
a point by point basis. For example, if you previously calibrated your meter at pH 4.01, 7.00,
and 10.01, and you recalibrate at pH 7.00, the meter retains the old calibration data at
pH 4.01 and pH 10.01. To view current calibration points, see Program P2.0 in the SETUP
section, page 29.
To completely recalibrate your meter, or when you use a replacement probe, it is best to set
the meter to its factory defaults and recalibrate the meter at all points. To reset the meter to
its factory defaults, see the SETUP section Program P5.0, page 36 (for pH 300 meter) or
4.1
4. Calibration
Important Information on Meter Calibration
pH 310 meter calibration
The pH 310 meter features three separate buffer sets. Select the buffer set you require in
Set Up mode Program 4.0 (see page 34 for more information). The pH 310 meter is
capable of up to 6-point pH calibration, depending on the buffer set. Select from the
following buffer options:
USA buffers (pH 1.68, 4.01, 7.00, 10.01, 12.45)
NIST buffers (pH 1.68, 4.01, 6.86, 9.18, 12.45)
DIN buffers (pH 1.09, 3.06, 4.65, 6.79, 9.23, 12.75)
The meter automatically recognizes and calibrates to these standard buffer values,
which makes pH calibration faster and easier.
pH 300 meter calibration
The pH 300 meter is capable of up to 5-point pH calibration to ensure accuracy across
the entire pH range of the meter. Select from the following buffer options:
pH 1.68, 4.01, 7.00, 10.01, and 12.45.
The meter automatically recognizes and calibrates to these standard buffer values,
which makes pH calibration faster and easier.
for information on our high-quality OAKTON pH buffers.
4.2
Before starting calibration, make sure you are in the correct measurement mode.
When you switch on the meter, the meter starts up in the units last used. For
example, if you shut the meter off in "mV" units, the meter will read "mV" units
when you switch the meter on.
Be sure to remove the protective electrode storage bottle or rubber cap of the
probe before calibration or measurement. If the electrode has been stored dry,
wet the probe in tap water for 10 minutes before calibrating or taking readings to
saturate the pH electrode surface and minimize drift.
Wash your probe in deionized water after use, and store in electrode storage solu-
tion. If storage solution is not available, use pH 4.0 or 7.0 buffer.
Do not reuse buffer solutions after calibration. Contaminants in the solution can
affect the calibration, and eventually the accuracy of the measurements. See page 41
Preparing the Meter for Calibration
1312
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See figure
5. Wait for the measured pH value to
See figure
primary display will show the measured
reading while the smaller secondary dis-
play will indicate the pH standard buffer
solution.
B
C
C
stabilize.
4. Press CAL/MEAS to enter pH calibration
gently to create a homogeneous sample.
mode. The CAL indicator lights. The
3. Dip the probe into the calibration buffer.
The end of the probe must be completely
immersed into the sample. Stir the probe
2. Rinse the probe thoroughly with
See figure
appears in the upper right hand corner
de-ionized water or a rinse solution. Do
not wipe the probe; this causes a build-up
of electrostatic charge on the glass surface.
of the display.
A
1. If necessary, press the MODE key to
NOTE: We recommend that you perform at least a 2-point calibration using standard
select pH mode. The pH indicator
buffers that bracket (one above and one below) the expected sample range.
You can perform a 1-point calibration, but make sure that the buffer value is
close to the sample value you are measuring.
4.3
pH calibration
C
If the READY indicator has been activiated
(set up program P4.1—see page 32), the READY
annunciator lights when the reading is stable.
READY
CAL
pH
pH
To limit the number of pH buffer values
available during calibration, see section
P4.2 on page 33.
B
pH
electrode and buffer icon blink and the ERR
annunciator appears in the lower left cor-
ner of the display.
CAL
pH
If the selected buffer value is not within
±1.0 pH from the measured pH value: the
ENTER in step 6. Press CAL/MEAS instead.
Notes
To exit from pH Calibration mode without
confirming calibration, DO NOT press
A
MEAS
ATC
C
pH
• If you are performing one-point
8. Follow steps 5 to 8 for additional
9. When calibration is complete,
calibration points.
press CAL/MEAS to return to pH
measurement mode.
7. Rinse the probe with de-ionized water
calibration, go to step 9.
or a rinse solution, and place it in the
next pH buffer.
See figure
• If you are performing multipoint
calibration, go to step 7.
6. Press ENTER to confirm calibration.
The meter is now calibrated to the
current buffer.
D
1514
D
READY
CAL
pH
pH
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