Hach sensION+ EC71 User manual

DOC022.98.90252
Manual
Bedienungsanleitung
Manuel d’utilisateur
07/2010, Edition 1
07/2010, Heft 1
07/2010, Edition 1
© HACH LANGE GmbH, 2010, All rights reserved. Printed in Spain
sensION+ EC71 HACH LANGE 7010.indd 1sensION+ EC71 HACH LANGE 7010.indd 1 8/7/10 16:14:338/7/10 16:14:33

sensION+ EC71 HACH LANGE 7010.indd 2sensION+ EC71 HACH LANGE 7010.indd 2 8/7/10 16:14:348/7/10 16:14:34

ENGLISHDEUTSCHFRANÇAISCONTACT
sensION+ EC71 HACH LANGE 7010.indd 3sensION+ EC71 HACH LANGE 7010.indd 3 8/7/10 16:14:348/7/10 16:14:34

sensION+ EC71 HACH LANGE 7010.indd 4sensION+ EC71 HACH LANGE 7010.indd 4 8/7/10 16:14:348/7/10 16:14:34

1
ENGLISH
1. Technical Specifications . . . . . . . . . . . . . . . . . . 2
2. General information. . . . . . . . . . . . . . . . . . . . . 3
2.1. Safety information . . . . . . . . . . . . . . . . . . . . 3
2.1.1. Use of hazard information . . . . . . . . . 3
2.1.2. Precautionary labels . . . . . . . . . . . . . . 3
2.2. General product information . . . . . . . . . . . . 3
2.3. Instrument composition . . . . . . . . . . . . . . . 3
3. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1. Assemblage . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2. Connections . . . . . . . . . . . . . . . . . . . . . . . . 5
4. Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.1. Description . . . . . . . . . . . . . . . . . . . . . . . . . 5
4.2. Start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.3. Factory configuration. . . . . . . . . . . . . . . . . . 6
4.4. General diagram . . . . . . . . . . . . . . . . . . . . . 7
4.5. Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.6. Other options for calibration . . . . . . . . . . . . 9
4.7. EC measurements . . . . . . . . . . . . . . . . . . . . 10
4.8. Reprogramming EC measurements . . . . . . . 11
4.9. Printing data of EC measurements . . . . . . . . 12
4.10. Salinity, TDS and Resistivity measurements . . 14
4.11. Data Logger. . . . . . . . . . . . . . . . . . . . . . . . . 16
4.12. System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.13. Temperature re-adjustment . . . . . . . . . . . . . 18
4.14. Recognized standards . . . . . . . . . . . . . . . . . 18
5. Sending data via the RS 232 C . . . . . . . . . . . . 19
6. Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.1. Clean the instrument . . . . . . . . . . . . . . . . . . 20
6.2. Sensor cleaning . . . . . . . . . . . . . . . . . . . . . . 20
7. Warning messages . . . . . . . . . . . . . . . . . . . . . . 20
8. Accessories and spares. . . . . . . . . . . . . . . . . . . 21
9. Warranty, liability and complain . . . . . . . . . . 21
Contact Information
Index
sensION+ EC71 HACH LANGE 7010.indd ANG:1sensION+ EC71 HACH LANGE 7010.indd ANG:1 8/7/10 16:14:348/7/10 16:14:34

2
1. Technical Specifications
Measuring ranges (resolution depending on scale)
Conductivity 0.01/0.001* µS to 500/1000** mS/cm
Resistivity 0 to 100 M
Salinity 5.85 mg/l to 311.1 g/l NaCl
T.D.S. 0 mg/l to 500 g/l
Temp -20.0 to 150.0 ˚C (-4 to 302 ˚F)
* only with C=0.1 cm-1 ** only with C=10 cm-1
Measuring error (±1 digit)
Conductivity 0.5%
Resistivity 0.5 %
Salinity & TDS 0.5%
Temp 0.2 ˚C (0.4ºF)
Reproducibility (±1 digit)
Conductivity ± 0.1 %
Resistivity ± 0.1 %
Salinity & TDS ± 0.1 %
Temp ± 0.1 ˚C (0.1 ºF)
Automatic temperature compensation
Manual entrance.
With Pt 1000 temperature probe (A.T.C.)
With NTC 10 K probe.
Temperature coefficient, TC
Linear, TC = 0.00 to 9.99 % / ºC.
Non-linear function for natural waters (UNE EN 27888)
Temperature reference, TRef
20 ˚C, 25 ˚C or any value between 0 and 99 ˚C.
Conductivity calibration (EC)
With 1, 2 or 3 standards selectable inside the range.
Recognition of molar standards.
Calibration at any EC, salinity or TDS value (indirect calibration)
Theoretical calibration.
Manual introduction of the calibration parameters.
Programmable calibration validity between 0 and 99 days.
Automatic recalibration warning
Accepted cell constants
With calibration: values between 0.05 to 50 cm-1.
Manual introduction: values between 0.05 to 15 cm-1.
Temperature readjustment
Correction of the temp. probe deviation (A.T.C.) at 25 ˚C (77 ˚F)
and 85 ˚C (185 ˚F).
Measuring mode
By stability, in continuous and by time.
Data Logger
Storage capacity up to 400 readings.
Storage the last 9 calibrations.
Languages
English, German, Spanish, French, Italian, and Portuguese.
Display
Graphic, backlit liquid crystal, 128x64 dots.
Inputs and outputs
Conductivity cell with built-in Pt1000 sensor, telephonic
connector.
Stirrer, RCA connector.
RS232C for printer or PC, telephonic connector.
External PC key board, mini DIN connector
Ambient conditions
Working temperature 5 to 40˚C (41 to 104ºF).
Storage temperature -15 to 65˚C (5 to 149ºF).
Relative humidity < 80% (not condensed).
Power supply
External plug-in power supply 100-240 VAC 0.4 A 47-63 Hz.
Materials
Enclosure, ABS and PC.
Keypad, PET with protective treatment.
Physical parameters
Weight: 1100 g.
Size: 350 x 200 x 110 mm.
sensION+ EC71 HACH LANGE 7010.indd ANG:2sensION+ EC71 HACH LANGE 7010.indd ANG:2 8/7/10 16:14:348/7/10 16:14:34

3
Electrical equipment marked with this symbol may not be dis-
posed 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.
Version Cell Accessories Manual
LPV3110.98.0002 –– ✓✓
LPV3170.98.0002 LZW5070.97.0002 ✓✓
ENGLISH
Accessories:
- Standard solutions 147 µS/cm , 1413 µS/cm and 12.88 mS/cm,
135 ml flasks.
- Magnetic stirrer.
- Calibration flasks, with magnetic bar inside.
- Plug-in power supply.
- Electrode’s stick and support.
2.2. Description
The sensION™+EC71 is an instrument to measure conduc-
tivity, salinity, TDS and temperature.
2.3. Instrument composition
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 carefully all labels and tags attached to the instrument.
sensION+ EC71 HACH LANGE 7010.indd ANG:3sensION+ EC71 HACH LANGE 7010.indd ANG:3 8/7/10 16:14:348/7/10 16:14:34

4
3. Installation
DANGER
Only qualified personnel, following the local security regulations, should conduct the tasks described in this section of the
manual.
3.1. Assemblage
1. Unpack the instrument.
Note: Stirrer replacement
Before replacing the stirrer, disconnet it from the rear panel and
release the cable from the bottom of the instrument.
2. Verify that the shift is in
the same position than
in the picture.
3. Drive the stick into the
hole.
4. Turn the shift in a
counterclockwise until
the stick is well fixed.
Place the o-ring at
135-140 mm from the
base in order to avoid
the shock of the sensor
against the bottom of
the glass.
5. Place the electrode’s
support on the stick by
softly pressing the
button.
Holder for 3 sensors.
PN LZW93 21.
6. Place the electrode on
the electrode’s support.
Insert the electrode’s
cable through the
groove.
1. Turn the stirrer to
release or fix from base.
2. Pull up the stirrer and
replace it.
Place the cable of the
new stirrer through the
bottom groove of the
instrument.
140
sensION+ EC71 HACH LANGE 7010.indd ANG:4sensION+ EC71 HACH LANGE 7010.indd ANG:4 8/7/10 16:14:358/7/10 16:14:35

5
ENGLISH
3. Installation
1. Magnetic stirrer, RCA connector.
2. Conductivity cell, with built-in ATC, telephonic connector.
3. RS-232 for printer or PC, telephonic connector.
4. PC keyboard, mini DIN connector.
5. Plug-in power supply (12 V).
3.2. Connections
DANGER
Make sure the power adapter matches your local power
supply.
4. Operation
4.1. Description
Keys
Switch on / Switch off.
Confirms the option displayed. When there is more
than one option, accepts the one marked in negative.
Move backwards in the menus.
Selection between the different options displayed.
Selection of numeric values.
Move forwards / backwards a digit when entering a
numeric value.
Show the next display in those menus that have more
than one.
POWER INKEYBOARD
RS-232C
PRINTER / PCSTIRRER CONDUCTIVITY CELL
45
321
sensION+ EC71 HACH LANGE 7010.indd ANG:5sensION+ EC71 HACH LANGE 7010.indd ANG:5 8/7/10 16:14:468/7/10 16:14:46

6
SN: 0602 V 1.0
10-04-2010 17:15
SN: 0602 V 1.0
10-04-2010 17:45
SN: 0602 V1.00
DATA OUTPUT
Deactivated
For printer
For computer
SN: 0602 V1.00
Language ENGLISH
Sprache DEUTSCH
Idioma CASTELLANO
Langue FRANÇAIS
Lingua ITALIANO
Idioma Português
10-04-2010 17:45
EC MEASURE
New calibration
in 15 days
10-04-2010 17:15
EC MEASURE
Calibrate EC
10-04-2010 17:15
EC CALIBRATION
Calibrate EC
4. Operation
4.2. Start-up
Connect to the rear panel of the instrument:
- the conductivity cell
- the magnetic stirrer
- the plug-in power supply
Follow the next steps:
For the first time...
Successive times...
4.3. Factory configuration
The sensION™+EC71 is an instrument for EC, salinity and TDS
measurements. The factory configuration is suitable for the
majority of applications.
Electrical conductivity (EC)
Temperature of reference (TRef) 25 ˚C
Temperature coefficient (CT) linear 2.00 %/ ºC.
Measurements: By stability.
In continuous pressing twice the key .
Calibration in 1, 2 or 3 points, with molar standards.
Calibration frequency, every 15 days.
Automatic sample coding.
Data sending, report type, etc. in accordance with the start up
configuration.
Salinity (NaCl)
Temperature of reference (TRef) 25 ˚C
Temperature coefficient (TC) linear 2.00 %/ ºC.
Measurements: By stability.
In continuous pressing twice the key .
Calibration in 1, 2 or 3 points, with molar standards.
Calibration frequency, every 15 days.
Automatic sample coding.
Data sending, report type, etc. in accordance with the start up
configuration.
Total dissolved solids (TDS)
Temperature of reference (TRef) 25 ˚C.
Temperature coefficient (TC) linear 2.00 %/ ºC.
Factor 0.64
Measurements: By stability.
In continuous pressing twice the key .
Calibration in 1, 2 or 3 points, with molar standards.
Calibration frequency, every 15 days.
Automatic sample coding.
Data sending, report type, etc. in accordance with the start up
configuration.
Resistivity ( )
Temperature of reference (TRef) 25 ˚C
Temperature coefficient (CT) linear 2.00 %/ ºC.
Measurements: By stability.
In continuous pressing twice the key .
Calibration in 1, 2 or 3 points, with EC molar standards.
Calibration frequency, every 15 days.
Automatic sample coding.
Data sending, report type, etc. in accordance with the start up
configuration.
Re-programming
To perform any modification in the default programming, for
example different measuring modes, calibration with other type
of buffers, etc. see corresponding chapters.
Press
Instrument switched off.
Press the keys to select the
language.
Press the keys to select the data
output. If a printer is available select the
corresponding options appearing on the
display. See page 17 (shady options)
Calibrate with standard solutions.
sensION+ EC71 HACH LANGE 7010.indd ANG:6sensION+ EC71 HACH LANGE 7010.indd ANG:6 8/7/10 16:14:478/7/10 16:14:47