Environmental Express 35419-47 User manual

For any questions regarding this product, please contact your local
agency, or inquire from the following website.
https://www.EnvExp.com
CODE:M004193-3200906242-GZ0000642302
June, 2021
Environmental Express, Inc.
Phone number: 800-343-5319
2345A Charleston Regional Pkwy Charleston, SC 29492
E-mail: [email protected]
Conductivity Electrode (35419-47)
Instruction Manual
This manual describes the operation of the conductivity
electrode, 35419-47. Be sure to read this manual carefully,
before using the electrode.
Conformable standards
This equipment conforms to the following standards:
Authorised representative in EU and UK
Cole-Parmer GmbH
Futtererstraße 16
Wertheim 97877
Germany
Telephone: [phone]
Fax: [phone]
E-Mail: [e-mail]
Website: www.coleparmer.co.de
COLE-PARMER INSTRUMENT COMPANY UK
9 Orion Court
Ambuscade Road
St. Neots PE19 8YX
United Kingdom
Telephone: [phone]
Free Call: [phone]
E-Mail: [e-mail]
Website: coleparmer.co.uk
Cautions during handling
Do not allow the electrode to come in contact with any
hard surface.
If the electrode pole plate is dry, immerse the electrode
in pure (ion exchange) water for at least one hour, prior
to use.
The electrode connector requires a high degree of
insulation.Do not allow the connector to come in contact
with water or dirty hands.
Do not rub the electrode plate with a brush or polish it
with a polishing agent.
The water-resistant construction of pH meters can be
used in combination with this electrode to provide water-
resistant construction (conforming to IP-67). When
measuring, do not immerse the cap, lead or connector in
the sample.
Contents
RoHS: EN IEC 63000
9. Monitoring and control instruments including
industrial monitoring and control instruments
RoHS: BS EN IEC 63000
9. Monitoring and control instruments including
industrial monitoring and control instruments
Name Q’ty
Electrode 1 pc
Instruction manual 1 copy
Specifications and parts description
Part name
Specifications
Preparations
Connecting to pH meter
Setting cell constant
The cell constant for this electrode is displayed on the
electrode cap.
Enter the cell constant (shown as 1.030 × 100 m-1, in this
example) of the electrode, by following the instructions in the
Operation Manual for the meter.
Example: 35419-47 LOT. ......
1.030 x 100 m-1
Electrode model 35419-47
Cell constant 100 m-1 (Former units: 1 cm-1)
Measurement range 0.1 mS/ to 10 S/m
(Former units: 1 S/cm to 100 mS/cm)
Usable temperature range 0°C to 80°C
Storage temperature range 0°C to 50°C
Electrode material Titanium - platinum black
Wetted part materials PPS, PSF and titanium
Electrode length 150 mm (incl. cap)
Max. height of electrode plate 53 mm (position from electrode tip)
Exit. diam, of wetted part 16 mm
Lead length 1 m
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 connec-
tor into the jack on the meter.
Insert the connector firmly, until
the O-ring on the connector
can no longer be seen.
Electrode
connector
Protective cap Cap
Lead
Electrode plate
Connector cover
Temp. connector (T electrode)
C1
T1
T2
C2
C1
T1
T2
C2
C1
T1
T2
C2
C1
T1
T2
C2

2
SI units system
The explanation of this electrode uses SI units. Using SI
units instead of the formerly used units means that the units
used to express length have changed from “cm”to “m”. To
convert the numerical parts of the cell constant and
conductivity from the former units to SI units, the numerical
parts ore multiplied by 100.
Sample calculations:
Converting cell constant from cm-1 to m-1
1 cm-1 in former units is multiplied by 100, resulting in
100 m-1 in SI units.
Converting conductivity from S/cm to S/m
10 S/cm in former units is multiplied by 100, resulting
1,000 S/m, which is equal to 1 mS/m.
Reference:
1,000 S/m = 1 mS/m
1,000 mS/m = 1 S/m
Use the following comparison table to convert from former
units to SI units.
Preparing electrode
Points to remember when measuring
Note
a
When measuring pure water or other water having low
conductivity (a few 100 S/m or less), the absorption of
Carbon Dioxide in the air or other external interference may
adversely effect the results. In such cases, air should be
stopped from entering the measuring environment and
measurement should take place under air-tight conditions;
or, use of a flow-form conductivity electrode is recom-
mended.
Former units SI units
Cell constant
1 cm-1
0.1 cm-1
10 cm-1
100 m-1
10 m-1
1000 m-1
Conductivity
10 S/cm
1 mS/cm
100 mS/cm
1 mS/m
100 mS/m
10 S/m
1. Hold the cap and remove the
protective cap. 2. Either wash the electrode plate
using a wash bottle that con-
tains pure (ion exchange) wa-
ter, or immerse the electrode in
a beaker containing pure (ion
exchange) water and lift the
electrode up and down a few
times to rinse it, then wipe it dry
using filter or tissue paper.
1. Immerse the electrode in the
sample, so that the uppermost
part of the electrode plate is
completely immersed.
2. After immersing the electrode
in the sample, lightly stir the
electrode around to both get it
used to the sample and remove
any air bubbles.
Cap
Protective cap
Sample
Upper most
port of
electrode
plate
Avoid measuring samples having a viscosity of 0.1 Paꞏs
(1P) or more and samples containing large amounts of oils .
The surface of the electrode plate absorbs various kinds of
macromolecular substances (such as proteins and fats).
Wash the electrode well, after measuring samples that
contain these substances.
Maintenance
Wash the electrode well using pure (ion exchange)
water, to remove any sample still clinging to the
electrode.
If the electrode is very dirty and cannot be washed clean
using pure (ion exchange) water, wash it using the
appropriate method below. Then, rinse the electrode
well using pure (ion exchange) water.
Long-term use of the electrode may result in shifts in the
cell constant, due to changes in the surface condition of
the electrode plate. We recommend measuring the cell
constant once every two or three months. For further
details, refer to the Operation Manual.
Note
If the electrode remains dirty after performing the above clean-
ing operations, immerse the electrode in a solution that is ap-
propriate for the particular conditions of the dirt and clean the
electrode using ultrasonic waves for five minutes. After this,
measure the cell constant.
Storage
Note
Storing the electrode for an extended period of time while
the inside of the protective cap is dry may lead to a decline
in electrode responsiveness and sensitivity.
Avoid storing the electrode in hot place or places with high
humidity. Store the electrode indoors, out of direct sunlight.
General/oily dirt
Immerse the electrode in a neutral
cleansing agent, then rinse the
dirt off.
Inorganic or other dirt
Immerse the electrode in 1 mol/L
hydrochloric acid for approxima-
tely 30 minutes.
1. Wash the electrode well using
pure (ion exchange) water, to
remove any sample still cling-
ing to the electrode.
2. Wash the electrode well using
pure (ion exchange) water, to
remove any sample still cling-
ing to the electrode.
3. Attach the protective cap.