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SENSION+ DO6
User Manual
2 pgs224.83 Kb0

Hach-Lange SENSION+ DO6 User Manual [en, de, fr]

DOC022.98.90258
Manual
Bedienungsanleitung
Manuel utilisateur
07/2010, Edition 1
07/2010, Heft 1
07/2010, Edition 1
© HACH LANGE GmbH, 2010, All rights reserved. Printed in Spain
ENGLISH
FRANÇAIS DEUTSCH
CONTACT
Table of contents
1. Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . 3
2. General information . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Safety information . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1.1. Use of hazard information . . . . . . . . . . . . . . 4
2.1.2. Precautionary labels . . . . . . . . . . . . . . . . . . 4
2.2. General product information . . . . . . . . . . . . . . . . . . 4
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1. Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3.1.1. Component list . . . . . . . . . . . . . . . . . . . . . . 5
3.1.2. Accessories . . . . . . . . . . . . . . . . . . . . . . . . 5
3.2. Battery power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2.1. Inserting the batteries . . . . . . . . . . . . . . . . . 6
3.3. Disconnecting/connecting the sensor . . . . . . . . . . . . 7
3.4. Carrying case . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4. Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1. General information . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2. User interface and browsing . . . . . . . . . . . . . . . . . . 8
4.2.1. Keyboard and display . . . . . . . . . . . . . . . . . 8
5. Set-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1. Atmospheric pressure . . . . . . . . . . . . . . . . . . . . . . . 9
5.2. Salinity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1. Polarisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.2. Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.2.1. Stability measuring . . . . . . . . . . . . . . . . . . . 11
6.2.2. Continuous measuring . . . . . . . . . . . . . . . . . 11
6.3. Changing measuring units (%/mg/L) . . . . . . . . . . . . 11
6.4. Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.4.1. One-point calibration . . . . . . . . . . . . . . . . . 12
6.4.1.1. Preparation . . . . . . . . . . . . . . . . . 12
6.4.1.2. Calibration . . . . . . . . . . . . . . . . . 12
6.4.2. Two-point calibration . . . . . . . . . . . . . . . . . 13
6.4.2.1. Preparation . . . . . . . . . . . . . . . . . 13
6.4.2.2. Calibration . . . . . . . . . . . . . . . . . 13
6.5. Manual calibration . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.5.1. Preparation . . . . . . . . . . . . . . . . . . . . . . . . 14
6.5.2. Calibration . . . . . . . . . . . . . . . . . . . . . . . . 14
6.6. Readjusting temperature . . . . . . . . . . . . . . . . . . . . . 15
6.7. Restoring factory settings . . . . . . . . . . . . . . . . . . . . . 16
6.8. Disabling auto power off . . . . . . . . . . . . . . . . . . . . 16
6.9. Changing temperature units . . . . . . . . . . . . . . . . . . 16
6.10. Display backlighting . . . . . . . . . . . . . . . . . . . . . . . . 17
6.11. Shutting down the instrument . . . . . . . . . . . . . . . . . 17
7. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.1. Cleaning the measuring instrument and accessories . . 18
7.2. Storing the instrument . . . . . . . . . . . . . . . . . . . . . . 18
7.3. Changing batteries. . . . . . . . . . . . . . . . . . . . . . . . . 18
8. Error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9. Accessories and spare parts . . . . . . . . . . . . . . . . . . 20
10. Warranty, liability and complaints . . . . . . . . . . . . . 21
Contact Information
ENGLISH
1
1. Specifications
Subject to change without notice.
Specifications
Display Keypad Measuring ranges
Reproducibility (± 1 digit)
Measuring error (± 1 digit)
Temperature Temperature compensation Correction of salinity and
atmospheric pressure Standard calibrations
Liquid crystal, backlit, with pictograms Membrane, 5 keys Saturation 0.0 to 199.9% and 200 to 250% (25°C) Concentration 0.00 to 19.99 mg/L and 20.0 to 22.0 mg/L (25°C) Dissolved oxygen ≤ 0.2 of the measured value Temperature ≤ 0.1 °C (≤ 0.1 °F) Dissolved oxygen ≤ 0.5 of the measured value Temperature ≤ 0.2 °C (≤ 0.4 °F)
0.0 to 50.0°C (0 to 122°F) Automatic, with NTC sensor Automatic, with manual data entry
At 1 or 2 points. 0% and 100% saturation
Dimensions of the measuring instrument and ambient conditions
Operating temperature Storage temperature Ambient conditions Weight Size
0 °C to 50 °C (32 °F to 122 °F) –15 °C to 65 °C (5 °F to 149 °F) 80% relative humidity (non-condensing) 300 g 186 x 73 x 38 mm
Additional technical data
Energy management Type of protection Power supply (batteries) Connector
Automatic power off after 5 minutes of inactivity IP 67 Three 1.5V AA batteries. Autonomy of over 500 hours MP-5, five-contact multipin
Warranty
Warranty
2 years
ENGLISH
3
2. General information
As a result of constant improvements to our products sometimes differences may exist between this manual and the instructions supplied with the instrument.
2.1. Safety information
Please, read carefully this information before installing and using the instrument ! Pay attention to all danger and caution statements.
2.1.1. Use of hazard information
DANGER
Indicates a potentially or imminently hazardous situation that, if not avoided, will result in death or serious injury.
WARNING
Indicates a potentially or imminently hazardous situation that, if not avoided, may result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that, if not avoided, may result in minor or moderate injury.
Important note: Indicates a situation that, if not avoided, could lead to damage to the instrument. Important information that requires special emphasis.
Note: Information that supplements points in the main text.
2.1.2. Precautionary labels
Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed.
This symbol references the instruction manual for operation or safety information.
Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after 12 August of 2005. In conformity with European local and national regulations (EU Directive 2002/96/EC), European electrical equipment users must now return old or end-of life equipment to the Producer for disposal at no charge to the user. Note: For return for recycling, please contact the equipment producer or supplier for instructions on how to return end-of-life equipment, producer-supplied electrical accessories, and all auxiliary items for proper disposal.
2.2. General information
The
sensION ™+ DO 6
the saturation (in %) or the concentration (in mg/L) and the temperature of the sample. The atmospheric pressure and salt content are automatically corrected. Before being able to read a measurement, you will need to connect a sensor (Fig. 3, pg. 7).
4
is a polarographic measuring instrument for dissolved oxygen. The instrument measures
3. Installation
WARNING
Risk of falling. Measurements are made directly in situ with this instrument. To prevent the risk of
falling, ensure compliance with all local safety regulations on securing with ropes and on the use of adequate protective clothing and footwear.
Risk of injury. Do not attach the measuring instrument to your body. The measuring sensor could
be accidentally caught in a motor or stirrer and could endanger the user through the connected sensor cable.
ENGLISH
3.1. Content of
sensION ™+ DO 6
3.1.1. Component list
Code Instrument Sensor Accessories Batteries Manual
LPV4500.98.0002 LPV4551.98.0002
sensION ™+ DO 6 sensION ™+ DO 6
–– ––
LZW5120.97.0002
✓✓
✓✓✓
3.1.2. Accesorios
• Carrying case.
• Sensor electrolyte (25 mL).
• Replacement membrane
• Two 90-mL bottles for sample and sensor cleaning.
• Tube for calibration.
sensION™
DO6
Fig. 1. Equipment composition
After removing the instrument, check each part for possible damage. All components on the attached list must be present. If there are any missing or damaged parts, contact the manufacturer or distributor.
5
3. Installation
+
+
+
3.2. Battery power
WARNING
Risk of fire or explosion. Use only AA alkaline batteries for the measuring instrument and ensure that
the batteries are correctly inserted in their compartment. Inserting batteries incorrectly can damage the instrument and cause fires or explosions.
The measuring instrument works with three batteries (1.5 V, AA).
The batteries supplied have a useful life of approximately 500 hours.
Important note: never use different types of batteries together.
Important note: if the measuring instrument is not going to be used for a long period of time, remove
the batteries to prevent leakage in the instrument.
3.2.1. Inserting the batteries
1. Open the lid of the battery compartment by pressing and pulling on the tab.
2. Insert the batteries supplied (1.5 V AA). Note the polarity markings inside the battery compartment.
3. Close the lid of the battery compartment.
1
2
3
Tab
1
Battery compartment lid
4
Fig. 2. Inserting the batteries
6
2
Batteries
3
Battery compartment
4
3. Installation
3.3. Disconnecting/connecting the sensor
The
sensION ™+ DO 6
Sensor disconnection
Sensor connection
Important: do not unscrew the connector.
kits are supplied with the sensor attached to the instrument.
Fig. 3. Disconnecting/connecting the sensor to the measuring instrument
ENGLISH
3.4. Carrying case
The carrying case can be used as a support for both, instrument and sensor, see figure:
Electrode position when it is not in use.
7
4. Start-up
4.1. General information
Important note: before start-up, make sure that the sensor is connected to the measuring instrument.
1. Connect the sensor (if necessary) to the measuring instrument (Fig. 3, pg. 7).
2. Turn on the instrument.
3. Perform calibration (see pg. 12-14).
4. Take measurement (see pg.10).
Note: With the instrument switched off,
- Press the
measuring.
- Press the
calibration.
4.2 User interface and navigation
4.2.1 Keyboard and display
Figure 4 indicates the instrument keys and display.
key and the instrument will begin
key and the instrument will begin
Software version. Instrument
serial number.
Display
1 Measured DO values (mg/L or %).
Standby screen.
2 Temperature.
1
4
2
3
8
5
Fig. 4. Keypad description
3 Measuring time (hh:mm:ss).
4 Units of measurement.
5 Battery indicator.
Keypad
- Instrument on/off.
- Display light on.
- Start of measuring.
- Start of calibration.
- Selection of temperature units.
- Entry of numerical values during set-up.
5. Set-up
The
sensION ™+ DO 6
is supplied with the following parameters: – Atmospheric pressure: 1013 mb. – Salinity: 0.0 g/L.
To display and/or modify these pa­rameters, follow the diagram below.
ENGLISH
2 s
2 s 2 s
2 s
2 s
2 s
5.1. Atmospheric pressure
Enter the atmospheric pressure value for the instrument to make the relevant compensation.
5.2. Salinity
Enter the salinity value of the sample to be measured. This is deter­mined with a conductivity measurement.
Important note: salinity only affects the DO concentration measurement (mg/L).
Conversion table specific conductivity/salinity
Conductivity (mS/cm) NaCl (g/L)
1.9 1.0
3.7 2.0
7.3 4.0
10.9 6.0
17.8 10.1
25.8 15.1
33.6 20.2
41.2 25.4
48.9 30.6
56.3 35.8
62.2 40.0
69.4 45.3
75.7 50.0
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6. Operation
6.1. Polarisation
The sensor must be connected and polarized before calibration. The measuring instrument polarizes the sensor whenever it is connected, even if it is switched off.
Required polarisation
The sensor must be polarised 6 hours before use if:
• it is not connected to the measuring instrument
• the batteries have been inserted for the first time, they are running low or they need changing The sensor must be polarised for 10 approximately minutes if the sensor is disconnected from the measuring instrument for less than 5 minutes.
6.2. Measurement
1. Press to turn on the instrument.
2. Remove the sensor protector.
3. Clean the sensor with deionized water.
4. Stir the sensor uniformly in the sample, holding it by the top.
Important notes: the instrument must be calibrated before taking the first reading. The DO sensor consumes oxygen in the measured solution; hence, the liquid in contact with the membrane needs to be renewed for a correct measurement. Otherwise, the reading will gradually drop. Gently stir the liquid to be measured using the sensor. The minimum flow must be 0.3 mL/s. Before measuring, the sensor must be fully polarised. Salt content affects oxygen measurement when the result is expressed in mg/L and it must be adjusted manually. To do this, measure the conductivity of the sample, determine the salt content (see table on pg. 9) and manually enter it in the instrument.
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6. Operation
6.2.1. Stability measuring
Follow the diagram. The reading is not locked on the screen until the sen­sor signal varies less than 0.1% DO (0.125 nA) for 15 sec. Once the reading has stabilized, the screen lights up for 2 sec.
6.2.2. Continuous measuring
Once stability measuring has begun, press the key twice. The instrument displays the measured value directly on screen at all times. The continuous reading should always be started after beginning a stability reading (see diagram). To end a continuous reading, press
.
The display will light up for 2 sec.
Note: if the measuring instrument is not used for 5 min­utes, it will shut off automatically.
Stability
measuring
ENGLISH
Continuous
measuring
+
6.3. Changing measuring units (%/mg/L)
To change the units of measurement from % to mg/L or vice versa.
In Stability measuring, hold down
the
key for 2 s.
2 s
11
6. Operation
6.4. Calibration
The sensor and the measuring instrument must be calibrated correctly to obtain precise measurements.
Important notes:
The sensor must be connected and polarized before calibration (see sensor manual). During calibration, the membrane must not enter into contact with the surface of the water. The membrane must remain dry since water droplets can affect calibration.
6.4.1. One-point calibration
1 2 3 4
6.4.1.1. Preparation
1. Unscrew the sensor protector.
2. Add a small amount of water to the
calibrator tube.
3. Empty the excess water by shaking gently.
4. Screw the calibrator tube to the sensor.
Fig. 5. Preparación
6.4.1.2. Calibration
Follow the diagram. One-point calibration is performed in air saturated water, 100% DO. This is the most common type of calibration.
Note:
If calibration is not performed correctly, the membrane must be cleaned and the electrolyte changed (see sensor manual). The calibration is correct if an oxygen content of over 98% is displayed when taking a measurement in the calibrator tube. A value of over 99% is optimal. If the measuring instrument is not used for 5 minutes, it shuts off automatically.
Screw the sensor to the 1st tube.
12
6. Operation
6.4.2. Two-point calibration
6.4.2.1. Preparation
1. Unscrew the sensor protector.
2. Dip the sensor into an oxygen-free solution.
3. Stir the sensor gently.
6.4.2.2. Calibration
Follow the diagram.
Note:
To perform a two-point calibration, you must be certain that the solution is oxygen-free; otherwise, one-point calibration (100% DO) using the calibrator tube is preferable. If calibration is not performed correctly, the membrane must be cleaned and the electrolyte changed (see sen­sor manual). The calibration is correct if an oxygen content of over 98% is displayed when taking a mea­surement in the calibrator tube. A value of over 99% is optimal. If the measuring instrument is not used for 5 minutes, it shuts off automatically.
ENGLISH
Dip the sen­sor into an oxygen-free solution
13
6. Operation
6.5. Manual calibration
Important note: before turning on the instrument, check that the DO sensor is connected and polarised.
Manual readjustment of the dissolved oxygen measured within the range. When readjusting DO, the instrument behaves as though it were per­forming a one-point calibration.
6.5.1. Preparation
1. Unscrew the sensor protector.
2. Rinse the sensor with deionized water.
3. Dip the sensor into the solution in which manual calibration is to be
performed.
Note: Before beginning manual calibration, you must take a measure­ment in the standard to be used in the calibration.
6.5.2. Calibration
Stir gently holding the sensor by the handle. Follow the diagram.
(1)
(1)
Hold down
and then press .
Note: If the measuring instrument is not used for 5 minutes, it shuts off automatically. If errors occur during calibration, an error message will appear on screen (see pg. 19). Before beginning manual calibration, you must take a measurement in the standard to be used in the calibration.
Important note: to exit calibration without saving the adjustment, press
14
.
6. Operation
6.6. Readjusting temperature
The instrument can correct the deviation of a temperature probe (built into DO sensors) at 25°C and 85°C (77°F and 185°F). This allows the instrument to be used as a precision ther­mometer. Follow the diagram.
2 s
ENGLISH
Enter the correction of the
temperature sensor at
25 °C (77 °F).
Enter the correction of the
temperature sensor at
85 °C (185 °F).
To exit adjust­ment without sav­ing the data.
15
6. Operation
6.7. Restoring factory settings
The current calibration can be erased and restored to the factory settings.
6.8. Disabling auto power off
If the measuring instrument is not used for 5 minutes, it turns itself off automatically. This automatic power off feature can be disabled.
2 s
2 s
Automatic power
off is disabled
etc.
6.9. Changing temperature units
The instrument is shipped ready to measure temperature and express the values in °C. Follow the diagram to change the units to °F.
Stable measurement
(1)
(1) Press the
16
keys simultaneously.
6. Operation
6.10. Display backlighting
At the end of a measurement, whether in stability or continuous, the screen automatically lights up for 2 seconds. The user can also light up the screen at any other time by pressing
, which will backlight the screen
for 3 seconds.
Changing backlighting time
Follow the diagram.
Notes: only the time of the manual backlighting of the display can be modified. You cannot change the automatic backlighting time (2 sec.) after completing a measurement. By increasing the display’s backlighting time, you reduce the autonomy of the instrument (battery life).
Immediately
inmediatamente
3 s 6 s
ENGLISH
Continuous backlighting
In low-light environments, it is advisable to work with the screen lit.
Note: backlighting the display reduces the autonomy of the instrument (battery life).
6.11. Shutting down the instrument
Follow the diagram below.
2 s
17
7. Maintenance
ATTENTION!
Potentially dangerous to skin and eyes with chemical/biological exposure.
The tasks described in this section of the manual should only be performed by qualified personnel.
7.1. Cleaning the measuring instrument and accessories
Important note: never use cleaning products such as turpentine, acetone or similar products to clean the instrument, including the screen and accessories.
Only clean the carrying case and accessories with a soft damp cloth. A mild soap solution can also be used. Dry the clean parts carefully with a soft cotton cloth.
7.2. Storing the instrument
When preparing to store the instrument for long periods of time, remove the batteries to prevent leakage and subsequent damage to the measuring instrument.
7.3. Changing batteries
WARNING
Risk of fire or explosion. Use only AA alkaline batteries for the measuring instrument and ensure that
the batteries are correctly inserted in their compartment. Inserting batteries incorrectly can damage the measuring instrument and cause fires or explosions.
The batteries supplied have a useful life of approximately 500 hours.
1. Press
2. Disconnect the sensor.
3. Open the lid of the battery compartment (Fig. 2, pg. 6).
4. Remove the old batteries.
5. Insert the new batteries (1.5V AA). Note the polarity markings inside the battery compartment.
Important note: never use different types of batteries together.
6. Close the lid of the battery compartment.
18
to turn off the instrument.
8. Error messages
Display Caused by Action
- Measurement of D.O. or temperature out of range.
- In calibration:
- Standard 0%: limits <0 nA and >2nA
- Standard 100%: limits <30 nA and >110 nA
Low battery charge. Replace the batteries.
Check standards. Check sensor.
ENGLISH
Unstable reading during a stability measurement or during calibration.
E1
180-second timeout. Exceeded upper limit of sensor current during
E2
measurement ≥250 nA
Check sensor. Check polarisation. Check flow.
Check sensor.
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