Camlab CW/6230 User manual

Dissolved Oxygen Meter - Instruction Manual
Ref: CW/72.32.20
Camlab Water Model CW/6230
%
°C
%O
2
hPa mg/l
mmHg
SAL OK Cal hPa
MEAS
HOLD
°F
°C
MeasCal
Hold RclStore
On
Off Menu
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Table of Contents Page
1. Scope of delivery .............................................................. 4
2. System description ........................................................... 4
3. Connections ..................................................................... 6
4. Display ............................................................................. 6
5. Keypad ............................................................................ 8
6. Startup ............................................................................. 8
7. Measurement ................................................................. 10
8. Configuration of the unit ................................................. 11
8.1 Resolution of display for oxygen measurement ............... 11
8.2 Zero point temperature offset ......................................... 11
8.3 Salinity: salinity correction ............................................... 12
8.4 Display of sensor status ................................................. 12
8.5 Pressure Absolute, display of absolute pressure ............. 13
8.6 Selection of temperature unit°C /°F ............................... 13
8.7 Selection of unit for oxygen partial pressure .................... 13
8.8 „Power off“: automatic unit switch-off ............................. 13
9. Oxygen measurement .................................................... 14
9.1 Absolute pressure .......................................................... 14
9.2 Salinity correction ........................................................... 15
10. Calibration of oxygen measurement ................................ 15
10.1 Performing calibration ..................................................... 15
11. Oxygen sensor ............................................................... 16
11.1 Technical data ................................................................ 16
11.2 Operating notes ............................................................. 17
11.3 Design of the sensor ...................................................... 18
11.4 Care and maintenance ................................................... 19
12. Result memory ............................................................... 21
12.1 Storing results ................................................................ 21
12.2 Displaying stored results ................................................. 21
12.3 Deleting stored results .................................................... 21
13. Error messages and troubleshooting .............................. 22
14. Technical data ................................................................ 23
15. Accessories .................................................................... 26
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1. Scope of delivery
Standard:
• Camlab Water CW6230
• Measuring cell
• Batteries, 4*AA 1,5 V Cells
• Operating instructions
• Carrying strap
Set:
• Camlab Water CW6230
• Batteries, 4*AA 1,5 V Cells
• Measuring probe
• Carrying case
• Operating instructions
• Carrying strap
2. System description
The Camlab Water CW6230 is a sturdy, water-
tight handheld meter designed for daily measurements
in the area of field or laboratory analysis.
It is used to measure oxygen concentration in surface
waters and groundwater as well as for waste water
and service water analysis.
The system complies with the requirements in EN
60529 relating to protection class IP67 and water-
proof/dustproof properties.
The permanent protective plating on the unit serves
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not just as impact protection but also as a storage
compartment for the sensor and as an anti-slip device
when the meter is used in an upright position.
Microprocessor technology and 4*AA 1,5 V batteries
allow unit operation without battery change for 12,000
hours or more.
A "Low Bat” indicator in the display shows the user
when it is time to change the batteries.
The required temperature compensation for the sy-
stem is performed automatically following connection
of the temperature sensor (NTC, 10 kOhm) that is in-
tegrated as standard in the Tintometer oxygen sen-
sor.
The AUTO HOLD feature enables the user to identify
stable results and call them up on the display.
The standard MEAS measuring function is for conti-
nuous measurement of oxygen concentrations, parti-
al pressures or saturations.
The absolute atmospheric pressure is measured in the
unit and is automatically used, for among other things,
calculation of the oxygen partial pressure or calibrati-
on of the system.
The integrated automatic salinity correction feature is
based on the "International Oceanographic Tables" and
is user-selectable in the range from 0% to 70% via the
configuration function of the unit.
The system is calibrated using the oxygen in the air.
A sensor evaluation is automatically shown in the dis-
play (or can be called up via the menu) after each ca-
libration.
An internal memory for 20 results is integrated in the
unit as standard. The memory stores location, result
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and temperature.
The memory is called up via the display.
3. Connections
%
°C
mmHg hPa mg/l %O2
SAL OK CAL hPa
MEAS
HOLD °F
°C
Meas CAL
Hold KCl Store
On
Off Menu
123
456
789
%
°C
pH
RealmV
mV
ATCOCAL
MAX
MEAS
MIN
HOLD
°F
°C
MeasCAL
HoldKClStore
On
OffMenu
Oxygen sensor
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4. Display
Main Display: Result or user
prompt
[mmHg] Oxygen partial pressure
in mmHg
[hPa] Oxygen partial pressure
in hPa
[mg/l] Oxygen concentration
[%O2] Oxygen saturation
Secondary
display: Result - temperature
or user prompt
[%] Percent (sensor evaluation)
[°C/°F] Temperature unit
[∆
!
]Warning index - battery
[SAL] Salinity correction on/off
[OK] Measuring signal stable
[CAL] Auto. oxygen calibration
[hPa] Absolute air pressure
%
°C
%O
2
hPa mg/l
mmHG
SAL OK CAL hPa
MEAS
HOLD
°F
°C
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5. Keypad
[Meas] Continuous measurement -
standard
[Hold] Auto-Hold: Automatic
retaining of stable result
[On/Off] On / Off
[▲] [▼]Display change: partial pressure,
concentration or saturation. Leaf
through menu or display
[Rcl] Display of stored results
[Cal] Calibration mode
[Store] Storage of current result or acceptance of
unit configuration
[Menu] Unit configuration
6. Startup
The unit is supplied with integrated batteries as stan-
dard and is therefore ready for immediate use. You
have to unscrew the unit to insert or change the batte-
ries.
Remove
6 screws
4 x AA 1,5 V
Don`t
touch
Display
Meas Cal
Hold Rcl Store
On
Off Menu
Rcl
Meas Cal
Menu
Hold Store
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When inserting the batteries, ensure correct polarity!
Screw the unit back together carefully without exer-
ting too much pressure on the gasket seal.
If the [∆
!
]symbol appears together with "bAt” in the
lower section of the display, this means that the batte-
ries are nearly empty and need replacing.
However, the unit will continue to function for a certain
period of time.
If "bAt" appears in the upper section of the display,
this means that the batteries are completely empty.
Only use the matching Camlab oxygen sensors!
Other sensors may cause serious damage to the me-
ter and the sensor.
The sensor or temperature sensor must be plugged in
before the unit is switched on.
Switch the unit on via the [On/Off] key.
The system must be calibrated when the system is
first used.
Following measurement, please switch the unit off
using the [On/Off] key.
See the enclosed Operating Instructions for more de-
tailed information on storage and care of the sensors.
On
Off
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7. Measurement
Measuring mode MEAS
After the unit is switched on, it is automatically in the
standard measuring mode (MEAS).
You can switch to the standard MEAS measuring mode
by pressing the [Meas] key.
The display shows the current, possibly still fluctua-
ting result and [Meas].
If the result is stable, the [ok] arrow appears in the
display.
Measuring mode HOLD
Pressing the [Hold] key takes you into the AUTO HOLD
measuring mode.
In this mode, the recorded result is checked by the
system in line with the predefined stability criteria until
these criteria are met.
The display shows Auto/HOLD in alternating mode to-
gether with the result.
Once a stable reproducible value is present, the result
is shown permanently in the display ("frozen”).
The display also shows HOLD and the temperature.
If you press the [Hold] key again, the measuring cycle
starts again and runs until the stability criteria are met.
Meas
Hold
Meas
Hold
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