Xylem COND3110 User Manual
Cond 3110
0
5
2
0
3
5
C
°
S/cm
m
nLF
TP
AR
ARng
Operating manual
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Conductivity meter
Cond 3110
Accuracy when
going to press
The use of advanced technology and the high quality standard of our
instruments are the result of a continuous development. This may result in
differences between this operating manual and your meter. Also, we cannot
guarantee that there are absolutely no errors in this manual. Therefore, we
are sure you will understand that we cannot accept any legal claims resulting
from the data, figures or descriptions.
Copyright
© Weilheim 2008, WTW GmbH
Reproduction in whole - or even in part - is prohibited without the express
written permission of WTW GmbH, Weilheim.
Printed in Germany.
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Cond 3110 Contents
Cond 3110 - Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Socket field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 10
3 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.1 Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3.2.1 Inserting the batteries. . . . . . . . . . . . . . . . . . . . . 13
3.2.2 Switching on the meter. . . . . . . . . . . . . . . . . . . . 14
4 Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 General operating principles . . . . . . . . . . . . . . . . . . . . . . 15
4.1.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1.2 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2.1 Measuring the conductivity. . . . . . . . . . . . . . . . . 17
4.2.2 Measuring the salinity . . . . . . . . . . . . . . . . . . . . 17
4.3 Determining/setting up the cell constant [C] . . . . . . . . . . 19
4.3.1 Determining the cell constant (calibration). . . . . 19
4.3.2 Using the last calibrated cell constant . . . . . . . . 21
4.3.3 Setting the cell constant manually . . . . . . . . . . . 22
4.4 Temperature compensation TC . . . . . . . . . . . . . . . . . . . 25
4.5 Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.5.1 System settings . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.5.2 Measurement settings . . . . . . . . . . . . . . . . . . . . 27
4.6 Reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.6.1 Resetting the cell constant. . . . . . . . . . . . . . . . . 29
4.6.2 Resetting all meter settings . . . . . . . . . . . . . . . . 30
5 Maintenance, cleaning, disposal. . . . . . . . . . . . . . . . . 31
5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.1.1 Replacing the batteries . . . . . . . . . . . . . . . . . . . 31
5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.3 Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
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Contents Cond 3110
6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.1 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7.2 Measuring ranges, resolution, accuracy . . . . . . . . . . . . . 35
8 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
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Cond 3110 Overview
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2
3
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2
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C
°
S/cm
m
nLF
TP
AR
ARng
1Overview
The Cond 3110 compact precision conductivity meter enables you to
perform conductivity measurements quickly and reliably. The
Cond 3110 provides the maximum degree of operating comfort,
reliability and measuring certainty for all applications.
The proven procedures for determining or adjusting the cell constant
support your work with the conductivity meter.
1 Keypad
2 Display
3 Socket field
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Overview Cond 3110
Cond 3110
1.1 Keypad
In this operating manual, keys are indicated by brackets <..> .
The key symbol (e.g. <ENTER>) generally indicates a short keystroke
(under 2 sec) in this operating manual. A long keystroke (approx.
2 sec) is indicated by the underscore behind the key symbol (e.g.
<ENTER
_>).
<On/Off>:
<On/Off
<M>:
<M
<CAL>:
<CAL
<▲>: Increments values, scrolls
<▼>: Decrements values, scrolls
<ENTER>:
<ENTER
_>:
_>:
_>:
_>:
Switches the meter on/off
Resets calibration data
Selects the measured parameter
Opens the setting menu for
calibration and measurements
Calls up the calibration procedure
Displays the calibration data
Confirms entries
Opens the setting menu for system
settings
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Cond 3110 Overview
Time
1/cm
/K
%
8
88
8
8
8
8
8
°F
C
°
Sal
S/cm
m
LoBat
Tref25
Tref20
ARng
CalnLF AR
TP
-
µ
Measured
parameter
Sensor symbol
(calibration
evaluation)
Measured value
display
Temperature
display, function
display indicators,
status display
indicators
1.2 Display
Status display
indicators
AR Stability control (AutoRead) is active
ARng Automatic range switching; meter measures with
highest possible resolution
Cal Calibration
LoBat With battery operation: batteries almost empty
nLF Nonlinear temperature compensation
TP Temperature measurement active
Tref20 Reference temperature of 20 °C
TRef25 Reference temperature of 25 °C
TIME Setting of calibration interval
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Overview Cond 3110
2
1
1.3 Socket field
Connectors:
1 Conductivity measuring cell
2 Service interface
Caution
Only connect sensors to the meter that cannot return any voltages
or currents that are not allowed (> SELV and > current circuit with
current limiting).
Almost all customary measuring cells fulfill these conditions.
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Cond 3110 Safety
2 Safety
This operating manual contains basic instructions that you must follow
during the commissioning, operation and maintenance of the meter.
Consequently, all responsible personnel must read this operating
manual before working with the meter.
The operating manual must always be available within the
vicinity of the meter.
Target group The meter was developed for work in the field and in the laboratory.
Thus, we assume that, as a result of their professional training and
experience, the operators will know the necessary safety precautions
to take when handling chemicals.
Safety instructions Safety instructions in this operating manual are indicated by the
warning symbol (triangle) in the left column. The signal word (e.g.
"Caution") indicates the level of danger:
Further notes
Warning
indicates instructions that must be followed precisely in order to
avoid possibly great dangers to personnel.
Caution
indicates instructions that must be followed precisely in order to
avoid the possibility of slight injuries or damage to the meter or
the environment.
Note
indicates notes that draw your attention to special features.
Note
indicates cross-references to other documents, e.g. operating
manuals.
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Safety Cond 3110
2.1 Authorized use
Authorized use of the meter consists exclusively of the measurement
of conductivity, temperature and salinity in a laboratory or field
environment.
The technical specifications as given in chapter 7 T
ECHNICAL DATA must
be observed. Only the operation and running of the meter according to
the instructions given in this operating manual is authorized.
Any other use is considered unauthorized.
2.2 General safety instructions
This meter is constructed and tested in compliance with the IEC 1010
safety regulations for electronic measuring instruments.
It left the factory in a safe and secure technical condition.
Function and
operational safety
The smooth functioning and operational safety of the meter can only be
guaranteed if the generally applicable safety measures and the specific
safety instructions in this operating manual are followed during
operation.
The smooth functioning and operational safety of the meter can only be
guaranteed under the environmental conditions that are specified in
chapter 7 T
ECHNICAL DATA.
If the meter was transported from a cold environment to a warm
environment, the formation of condensate can lead to the faulty
functioning of the meter. In this event, wait until the temperature of the
meter reaches room temperature before putting the meter back into
operation.
Caution
The meter is only allowed to be opened by authorized personnel.
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Cond 3110 Safety
Safe operation If safe operation is no longer possible, the meter must be taken out of
service and secured against inadvertent operation!
Safe operation is no longer possible if the meter:
z has been damaged in transport
z has been stored under adverse conditions for a lengthy period of
time
z is visibly damaged
z no longer operates as described in this manual.
If you are in any doubt, please contact the supplier of the meter.
Obligations of the
purchaser
The purchaser of this meter must ensure that the following laws and
guidelines are observed when using dangerous substances:
z EEC directives for protective labor legislation
z National protective labor legislation
z Safety regulations
z Safety datasheets of the chemical manufacturers.
Caution
In addition to the safety instructions mentioned here, also follow
the safety instructions of the sensors used. The operating
manuals of the sensors are available on the supplied CD and on
the Internet under www.WTW.com.
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Safety Cond 3110
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Cond 3110 Commissioning
2
1
3 Commissioning
3.1 Scope of delivery
z Conductivity meter Cond 3110
z 4 batteries 1.5 V Mignon type AA
z Operating manual
3.2 Initial commissioning
Perform the following activities:
z Insert the supplied batteries
z Switch on the meter.
3.2.1 Inserting the batteries
1 Unscrew the two screws (1) on the underside of the meter.
2 Open the battery compartment (2) on the underside of the
meter.
3 Place four batteries (type Mignon AA) in the battery
compartment.
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Note
Alternatively, you can also use Ni-MH rechargeable batteries (type
Mignon AA). In order to charge the batteries, an external charging
device is required.
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