Oakton Ion 510 Series User manual

pH/mV/Ion/°C meter
ON/OFF
MEAS
MODE
HOLD
▲▼
ENTER
CAL
MR
MI
The
pH510andIon510Series
BenchtopMeters
WD-35619-00, -02, -03, -05, -07,
-08, -10, -12, -15, -17
WD-35619-20, -22, -23, -25, -27, -28
pH510—pH/mV/°Cmeter
Ion510—pH/Ion/mV/°Cmeter
2/00 ©2000 00702-93

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mV calibration
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pH calibration
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measurement
starting up
introduction
Tableofcontents
1. Introduction............................................................................................................................................................................4-7
• Keypad • Rear panels • Optional Electrode Holder
2. Starting up.................................................................................................................................................................................8
3. pH calibration and measurement...................................................................................................................................9-13
• Calibration • Measurement (with manual or automatic temperature compensation) • Hold function
4. mV calibration and measurement.................................................................................................................................14-15
• Calibration • Measurement • Hold function
5. Ion calibration and measurement (Ion 510 only)......................................................................................................16-18
• Calibration • Measurement • Hold function
6. Memory Function.....................................................................................................................................................................19
• Memory input • Memory recall
7. Temperature Calibration .......................................................................................................................................................20
8. Setup mode........................................................................................................................................................................21-23
• Clear memory • Electrode data • Buffer selection • Reset
9. Electrode care...................................................................................................................................................................24-25
• Electrode activation • Electrode maintenance • Storing pH/ORP electrode • Electrode cleaning
10. Troubleshooting................................................................................................................................................................26-27
11. Additional information.........................................................................................................................................................28
12. Specifications..........................................................................................................................................................................29
13. Accessories.............................................................................................................................................................................30
14. Warranty.....................................................................................................................................................................................31
15. Return of items........................................................................................................................................................................31
3
Quick tip
let the mini table of contents in the outer
margins of this manual guide you instantly
to the right section
memory
function
Ion calibration
and
measurement
setup
mode

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introduction
4
pH/mV/Ion°C meter
ON/OFF
MEAS
MODE
HOLD
▲▼
ENTER
CAL
MR
MI
1.Introduction
Thank you for purchasing the OAKTON®WD-35619-series
Benchtop meters. These meters are microprocessor
controlled, user-friendly and reliable. The large customized
LCD allows clear, easy operation. The display has mode
annunciators for pH, temperature, mV and ion readings.
Keypad
See Figure 1.
A large membrane keypad with touch feedback makes the
meter easy to use. Names and symbols describe the
function button controls.
Key Description
ON/OFF Powers the meter ON/OFF. When the meter is
switched on, it starts in the mode the meter
was last in when powered down.
CAL/MEAS Switches between the measurement and cali-
bration modes of the meter. In SETUP mode,
CAL/MEAS returns to the measurement mode.
MODE pH 510:
Measurement: MODE switches between pH
and mV.
Calibration: MODE switches from pH to temper-
ature in the pH calibration mode (if MODE is
pressed again, it will NOT switch back to pH).
Ion 510:
Measurement: MODE switches between pH,
mV and ion.
Calibration: MODE switches from pH to tem-
perature in the pH calibration mode (if MODE is
pressed again, it will NOT switch back to pH).
MI/▲▲Scrolls values in mV and temperature
calibration mode. Selects calibration points in
the ion calibration mode (Ion 510). Scrolls to the
next program in the SETUP mode.
MI inputs measurements into memory and
scrolls through memory values.
MR/▼▲Scrolls values in mV and temperature
calibration mode. Selects calibration points in
the ion calibration mode (Ion 510). Scrolls to the
previous program in the SETUP mode.
MR recalls measurements from memory and
scrolls through memory values.
HOLD Freezes a measurement on the display. Press
again to get current readings.
ENTER Confirms and enters the value selected for
calibration. Enter also functions in the memory
mode.
Figure 1
ON/OFF
MEAS
MODE
HOLD
▲▼
ENTER
CAL
MR
MI
memory
function
Ion calibration
and
measurement
setup
mode

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5
Figure 2
RearPanel
See Figure 2.
The OAKTON®WD-35619-series meters provide a
complete set of input connections for the various
accessories commonly used. Listed in the table below
are details of the connections that you can make.
Connection Function
ATC Phono jack connection from the tempera-
ture probe for Automatic Temperature
Compensation.
INPUT For connection to sensor electrodes with
BNC type connectors. The meter
accepts any pH, ORP or ISE with BNC
connector. Always make sure that the
connector is clean and dry.
REF For connection to pin type reference
electrode normally used with half cell
(mono) type pH electrodes or ISEs.
REC For connection to strip chart recorders.
Use subminiature plug with positive tip.
GND For connection to the earth ground jack
(standard tip connectors).
DC For connection of the AC adapter power
supply (included).
ATC INPUT REF REC GND DC
memory
function
Ion calibration
and
measurement
setup
mode

6
OptionalElectrodeHolder
If you have purchased a benchtop meter
with the optional electrode holder, the
electrode holder is included in the same
box as the meter.
Toattachtheelectrodeholdertothemeter:
1. The electrode holder base attached to
the bottom of the meter comes in the
shipping position.
— See Figure 3.
2. Use a Phillips screwdriver to remove the
screw holding the electrode holder in
shipping position.
— See Figure 3.
3. Slide the electrode base away from the
meter until the second screw slot lines
up with the original screw hole. Use the
screw removed earlier to secure
electrode holder base into position.
— See Figure 4.
4. The electrode holder arm is reversible. If
desired, remove screw holding electrode
holder base and slide base out of
brackets. Slide base into brackets on
opposite side and replace screw.
— See Figure 5.
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memory
function
Ion calibration
and
measurement
setup
mode
Bottom of meter
Figure 3
Figure 4
Figure 5
Shipping position
Bottom of meter
Bottom of meter

7
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memory
function
Ion calibration
and
measurement
setup
mode
Figure 6
Figure 7
5. To install the electrode arm, turn meter
back to the upright position.
— See Figure 6.
6. Line up the hole on the base of the
electrode holder arm with the peg on
the electrode holder base. Slide the hole
securely onto the electrode holder base.
— See Figure 7.
The electrode arm is now ready to swing
into desired position.— See Figure 8.
pH/mV/Ion/°C meter
ON/OFF
MEAS
MODE
HOLD
▲▼
ENTER
CAL
MR
MI
The electrode arm is now
ready to swing into
desired position.
Figure 8

8
2.StartingUp
Backpanelconnections
See Figure 9 .
1. Connect the AC adapter from an AC power source to
the power jack (DC). Slide in the adapter jack of the A/C
adapter into the meter until it is firmly seated. Voltage is
set at 9V and the current is at 500 mA, (center positive
connector).
2. Connect a sensor electrode to the BNC input
connector (INPUT). The meter can accept any pH, ORP,
or Ion Selective Electrode with a BNC connector. Make
sure the connector is clean and dry. Slide the electrode
connector of the electrode over the BNC connector
socket. Make sure the slots of the connector are in line
with the posts of the socket. Rotate and push the con-
nector clockwise until it locks. For separate reference
electrodes, push electrode pin into jack marked “REF”.
3. Connect a temperature probe to the input jack
marked ATC. Insert the probe into the jack marked
with ATC on the rear of the instrument panel.
4. Connect your chart recorder to the jack marked REC
You can connect chart recorders or other data collection
devices. Plug in the sub miniature (2.5 mm) connector
from the chart recorder into the jack marked with REC.
Output signal is a mV signal equal to the measured
electrode output. The tip of the connector is positive,
the sleeve is negative
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Attention!
Do not get water on the BNC connector
during operation. Avoid touching the
connector with soiled or wet hands.
Figure 9
ATC INPUT REF REC GND DC
for
temperature
probe
for sensor
electrode for separate reference
electrode
for chart
recorder for ground for AC adapter
memory
function
Ion calibration
and
measurement
setup
mode

9
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3. pHcalibrationandmeasurement
For best accuracy calibrate at least a two points using
fresh pH buffers. Select calibration buffers with calibra-
tion values closest to the measurement range you expect
to work in. A three point calibration (USA buffers: 4.01,
7.01, and 10.01 or NIST buffers: 4.01, 6.86 and 9.18)
ensures maximum accuracy throughout the measure-
ment range.
For quick checks with less accuracy, perform a one point
calibration. Select the buffer value closest to the
measurement range you will work in.
If you choose to calibrate to only 1 or 2 pH values, the
older calibration values you do not calibrate to will remain
stored. These old stored calibration values may cause
accuracy loss when your readings are close to the old
stored calibration values. To clear old calibration data,
reset the meter as shown in Section 8, Program 4.0 on
page 23.
For ATC measurements, attach the temperature probe
to the meter. The ATC mode annunciator shows on the
display. —See Figure 10. Insert the probe into the solution
to be measured so that the sample temperature can be
recorded and pH readings automatically temperature
compensate. If manual temperature compensation is
preferred, do not plug a temperature probe into the
meter.
DONOTREUSESOLUTIONSAFTERCALIBRATION.
Contaminants in the solution can affect the calibration,
and eventually the accuracy of the measurements.
All new pH calibrations will over-ride existing stored pH
calibration data at these calibration points. The meter
retains stored pH calibrations even when the meter is
turned OFF.
memory
function
Ion calibration
and
measurement
pH
ATC
MEAS
C
setup
mode
Figure 10

10
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Figure 11
Figure 13
memory
function
Ion calibration
and
measurement
pH
ATC
MEAS
C
pH
CAL
pH
pH
READY
CAL
pH
setup
mode
Figure 12
pHcalibration
NOTE: We recommend that you perform at least a
2-point calibration using 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 measur-
ing. Select pH 4, 7, or 10 buffers in pouches or bottles
from the OAKTON standard buffer solutions.
1. Press the ON/OFF key. All the LCD segments display
for a few seconds. The LCD switches to the last mode
the meter was turned OFF in when powered down
from the key pad. —See Figure 11
The customized LCD display will indicate the following:
Display Remarks
MEAS Measurement mode is selected.
pH Unit of measurement
°C Unit of temperature measurement
ATC Automatic Temperature Compensation
(if temperature probe or ”All-in-One“ probe
is connected)
pHCalibration
1. Make sure the meter is ON and if necessary, press the
MODE key to select pH mode. The pH indicator
appears in the upper right hand corner of the display.
—See Figure 11.
2. Rinse the electrode in deionized water or rinse solution.
If using the ATC function with a separate temperature
probe, rinse the temperature probe as well. DO NOT
WIPE THE pH OR TEMPERATURE PROBES DRY!
Wiping the probes causes static, and will create calibra-
tion and measurement instability.
3. Select the pH buffer and pour some into a CLEAN
container.
4. Dip the probe into the calibration buffer. The end of the
probe must be completely immersed into the sample.
Stir the probe gently to create a homogeneous sample.
5. Press CAL/MEAS to enter the pH calibration mode.
The CAL indicator appears. The primary display will
show the measured reading while the smaller
secondary display will indicate the pH standard buffer
solution. —See Figure 12.
The meter automatically recognizes the buffers in the set
you have selected in the SETUP mode (see page 23 for
instructions on how to select buffer sets): USA (4.01,
7.00 or 10.01) or NIST (4.01, 6.86, or 9.18) buffers.
7. Wait for the measured pH value to stabilize (when the
READY indicator displays in the left hand corner)
—See Figure 13.

11
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8. Press the ENTER button. The primary display flashes
the calibration value. The calibration point is now
stored in the meter. —See Figure 14.
• If you are performing a one-point calibration, press
CAL/MEAS to return to the measurement mode
and start taking pH readings.
• If you are performing a multi-point calibration go to
step 9.
9. Rinse the probe with de-ionized water or a rinse
solution, and place it in the next pH buffer. The meter
automatically switches to the next buffer solution
selected in the secondary display.
10. Wait for the measured pH value to stabilize (when the
READY indicator displays in the left hand corner)
11. Press the ENTER button. The primary display flashes
the calibration value. The calibration point is now
stored in the meter.
• If you are performing a two-point calibration, press
CAL/MEAS to return to the measurement mode
and start taking pH readings.
• If you are performing a three-point calibration go
to step 12.
12. Rinse the probe with de-ionized water or a rinse
solution, and place it in the next pH buffer.
13. Wait for the measured pH value to stabilize (when the
READY indicator displays in the left hand corner).
14. Press the ENTER button. The primary display flashes
the calibration value. The calibration point is now
stored in the meter. The meter automatically returns
to the pH measurement mode after a three-point
calibration is performed.
NOTES:
To exit from pH calibration mode without confirming
calibration, DO NOT press ENTER in step 8. Press
CAL/MEAS instead.
If the selected buffer value is not within the accepted
window (see below) from the measured pH value: the
electrode and buffer icon blink and ERR annunciator
appears next to the secondary display. Press CAL/MEAS
to exit the ERR condition.
—See Figure 15.
WindowofAcceptedValues:
USA 4.01 ±1.00
7.00 ±1.50
10.01 ±1.00
NIST 4.01 ±1.00
6.86 ±1.25
9.18 ±1.00
memory
function
Ion calibration
and
measurement
pH
READY
CAL
pH
pH
CAL
pH
ERR
setup
mode
Figure 14
Figure 15