Oakton Environmental Express 35660-60 User manual

For any questions regarding this product, please contact your local agency,
or inquire from the following website.
http://www.4oakton.com/
CODE:M003859-3200839731-GZ0000590188
December, 2019
Oakton Instruments
Phone number: (1)888-462-5866
625 E. Bunker Ct. Vernon Hills, IL. 60061, USA
E-mail: [email protected]
DO Electrode (35660-60 / 35660-62)
Instruction Manual
* "DO" is an abbreviation of Dissolved Oxygen.
Conformable standards
Authorised representative in EU
Cole-Parmer UK
9 Orion Court, Ambuscade Road
Colmworth Business Park
St Neots
Cambridgeshire
PE19 8YX, United Kingdom
Phone: [phone]
Fax: [phone]
Cautions during handling
Do not allow the electrode to be in contact with any hard
surface.
An extremely thin membrane is stretched across the DO
tip and the DO responsive part. Do not allow the
membrane to come in contact with any hard surface and
do not exert undue force on the diaphragm.
When attaching the DO tip to the electrode body, make
sure that the O-ring is attached. Attach the DO tip
securely to the electrode body.
The electrode connector requires a high degree of
insulation.
Do not allow the connector to be in contact with water or
dirty hands.
DO tips that are no longer usable should be disposed of
as industrial waste.
The water-resistant construction of meters can be used
in construction (conforming to IP-67). When measuring,
do not immerse the cap, the lead or connector in the
sample.
Packaged contents
This equipment conforms to the following standards:
RoHS: EN50581
9. Monitoring and control instruments
CAUTION
Chemical solution
Highly concentrated potassium hydroxide (KOH) is used in the
internal solution of the electrode.
If the internal solution in the electrode comes in contact with your
hands or skin, wash immediately with water. If the internal solution
comes in contact with your eyes, flush immediately with large
amounts of water and seek treatment by a physician.
Name Q’ty
Holder 1 pc.
DO tip (35660-64) 1 pc.
Instruction Manual 1 copy
Specifications and names of parts
Names of parts
Specifications
Preparations
Connecting to meter
1. Insert the electrode connector into the connector port
sleeve on the meter, after aligning with the pin. Do not
insert the connector unless it is aligned properly with the
connector port.
2. Press the electrode connector into the connector port on
the meter, while turning the connector to the right.
3. Slide the connector cover over the connector. Then,
push the cover in straight until it comes in light contact
with the meter case.
Do not turn the cover.
4. Insert the temperature connector into the jack on the
meter. Insert the connector firmly, until the O-ring on the
connector can no longer be seen.
Model 35660-60, 35660-62
Measurement method Membrane galvanic cell
Measurement range 0 to 20 mg/L
Temperature range 0 to 50°C
Wetted materials
Holder：PC/ABS
DO tip：PPS,FEP
Protective cap：SCS-14
Electrode size φ30 × 165 mm
Lead cable length 2 m (35660-60)
5 m (35660-62)
Electrode connector
Protective
cap
Temp. connector
(T electrode)
O-ring
Holder
Connector cover
Temp. sensor
Cap
Lead
C1
T1
T2
C2
①
②
③
④

2
Preparing electrode
1. Remove the protective cap from the holder.
2. Remove the DO tip (35660-64) from the package.
3. Remove the short socket and the paper cap from the
DO tip.
4. Attach the DO tip to the holder.
5. Attach the protective cap securely to the holder.
Note
Do not dispose of the short socket that was removed. It is
necessary when storing the electrode.
Screw the protective cap on firmly, until it stops. When
attaching the DO tip to the electrode body, make sure that
the O-ring is attached to the DO tip.
Measurement
Air calibration
1. Clean the electrode with tap water and remove any drop
of liquids from the membrane at the end of the DO tip,
by wiping away the liquid with a soft cloth.
2. Calibrate the electrode in clean air.
Note
Equalizing the temperatures of the DO electrode and the air
is important for achieving a proper air calibration. If
possible, allow the DO electrode to sit in the open air for a
short time (approx. 20 minutes) prior to calibration.
Avoid calibrating in places with extreme temperature
fluctuations, places exposed to the wind or the rain, and
places near heating equipment.
Do not grasp the holder during or immediately before/after
calibration. The body temperature affects the stability of the
readings.
Protective cap
Holder
Short socket
DO tip
Paper cap
O-ring
Holder
DO tip
Holder
Protective cap
Standard solution calibration and sample measurement
1. Clear the electrode with tap water and dry it with a soft
cloth, each time prior to immersing it in the solution.
2. Measure the DO while moving the electrode up and
down (at a speed of approx. 20 cm/s to 30 cm/s).
Note
The electrode membrane is thin and easily torn. Place it into
solution slowly.
Do not cause any damages to the lead and the electrode
when immersing the electrode in the solution.
Do not shake the electrode holding the lead in your hand,
and do not pull or tie the lead.
When immersing the electrode in the solution, make sure
that the temperature sensor is completely immersed.
Stir the DO electrode in the solution, so that the
temperature of the electrode becomes the same as that of
the solution.
Make sure the membrane has no dirt or air bubbles on it.
Make sure the flow speed on the surface of the membrane is
kept constant.
Maintenance
After finishing measurement, wash the DO electrode
well with tap water, then keep it immersed in tap water.
Leave the electrode connected to the meter.
If the electrode membrane is dirty, clean it by using a
soft cloth, taking care not to scratch the membrane.
Then, rinse the membrane with tap water.
If an error occurs during the calibration, replace the DO
tip.
Storage
The electrode should remain to be connected to the
meter during storage.
To store the electrode without the meter, follow the below
procedure.
1. Remove the electrode from the connector on the meter.
2. Clean the electrode well with tap water, then dry it with a
soft cloth.
3. Remove the DO tip from the holder.
4. Put the short socket on the DO tip, then store it in a cool,
dark location with an oxygen scavenger.
Note
Avoid storing the electrode in hot place or places with high
humidity. Store the electrode indoors and out of direct sunlight.