SI Analytics Lab860 Owner's Manual
Below you will find brief information for laboratory pH meter Lab 860. This pH meter is designed for rapid and reliable pH measurements in the laboratory. It features a stability control function (SC) to ensure accurate measurements, allowing you to perform calibrations using up to five buffer solutions in any order. The Lab 860 also includes an internal data memory for storing up to 800 datasets, which can be manually stored or automatically stored at specific time intervals. You can also transmit measurement data and calibration records to a PC or external printer via the RS232 or USB interfaces.
advertisement
Operating manual
Lab 860
6
2
4
9
8
9
°C
2 pH
TP
Lab 860
Laboratory pH meter
ba75554e05 01/2010
Lab 860
Accuracy when going to press
The use of advanced technology and the high quality standard of our instruments are the result of continuous development. This may result in differences between this operating manual and your instrument.
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.
Warranty
We guarantee the instrument described for 3 years from the date of purchase.
The instrument warranty covers manufacturing faults that are discovered within the warranty period.
The warranty does not cover components that are replaced during maintenance work, e. g. batteries.
The warranty claim extends to restoring the instrument to readiness for use but not, however, to any further claim for damages. Improper handling or unauthorized opening of the instrument invalidates any warranty claim.
To ascertain the warranty liability, return the instrument and proof of purchase together with the date of purchase freight paid or prepaid.
2
Copyright
©
2010, SI Analytics GmbH
Reprinting - even in the form of excerpts - is only allowed with the explicit written authorization of SI Analytics GmbH.
Printed in Germany.
ba75554e05 01/2010
Lab 860
KONFORMITÄTSERKLÄRUNG
DECLARATION OF CONFORMITY
DÉCLARATION DE CONFORMITÉ
Wir erklären in alleiniger
Verantwortung, dass das
Produkt
We declare under our sole responsibility that the product
Nous déclarons sous notre seule responsabilité que le produit
pH-Meter
Lab 860
auf das sich diese Erklärung bezieht, übereinstimmt mit den Angaben im Kapitel
pH meter
Lab 860
to which this declaration relates is in conformity with the specifications in the chapter
pH-mètre
Lab 860
auquel se réfère cette déclaration est conforme aux indications du chapitre
Technische Daten pH-Meter Lab 860
30. Oktober 2009
SI Analytics GmbH
Hattenbergstr. 10
D-55122 Mainz
Deutschland, Germany, Allemagne
30. Oktober, October 30, 30 octobre 2009
AGQSF 0000-A101-01/091030
ba75554e05 01/2010
3
Lab 860
4
ba75554e05 01/2010
Lab 860 Contents
ba75554e05 01/2010
Lab 860 - Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Socket field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
General safety instructions . . . . . . . . . . . . . . . . . . . . . . . 12
3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Scope of delivery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Switching on the meter . . . . . . . . . . . . . . . . . . . . . . . . . . 17
General operating principles . . . . . . . . . . . . . . . . . . . . . . 18
Operating modes . . . . . . . . . . . . . . . . . . . . . . . . 18
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Measuring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Measuring the pH value . . . . . . . . . . . . . . . . . . . 20
Measuring the ORP . . . . . . . . . . . . . . . . . . . . . . 21
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Calibration interval (Int.C) . . . . . . . . . . . . . . . . . 27
Automatic calibration (AutoCal) . . . . . . . . . . . . . 28
Saving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Manual storage . . . . . . . . . . . . . . . . . . . . . . . . . 31
Automatic storage at intervals (AutoStore) . . . . 33
Downloading the data memory . . . . . . . . . . . . . 35
Erasing the data memory . . . . . . . . . . . . . . . . . . 36
Downloading calibration data . . . . . . . . . . . . . . . 36
Transmitting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Options for data transmission . . . . . . . . . . . . . . 39
Downloading stored measurement datasets . . . 40
Downloading calibration data . . . . . . . . . . . . . . . 40
RS232 interface . . . . . . . . . . . . . . . . . . . . . . . . . 40
USB interface (device) . . . . . . . . . . . . . . . . . . . . 41
Operation with MultiLab pilot . . . . . . . . . . . . . . . 41
5
Contents Lab 860
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
System settings . . . . . . . . . . . . . . . . . . . . . . . . . 44
Measurement settings . . . . . . . . . . . . . . . . . . . . 46
Interval for automatic data transmission . . . . . . . 50
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Resetting calibration values . . . . . . . . . . . . . . . . 51
Resetting all meter settings . . . . . . . . . . . . . . . . 52
5 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . 53
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Replacing the batteries . . . . . . . . . . . . . . . . . . . . 53
Cleaning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Measuring ranges, resolution, accuracy . . . . . . . . . . . . . 61
8 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
6
ba75554e05 01/2010
Lab 860 Overview
1 Overview
The compact Lab 860 precision pH meter enables you to perform pH measurements rapidly and reliably. The Lab 860 provides the maximum degree of operating comfort, reliability and measuring certainty for all applications.
The proven calibration procedures and special stability control function
(SC) support your work with the pH meter.
6
2
4
9
8
9
°C
2 pH
TP
Lab 8
60
3
2
1
1
2
3
Keypad
Display
Socket field
Note
The meter is also available as part of individual Sets of equipment.
You will find information on this and other accessories in the SI
Analytics GmbH laboratory catalog or via the Internet.
Note
If you need further information or application notes, you can obtain the following material from SI Analytics GmbH: z Application reports z pH primers z Safety datasheets.
ba75554e05 01/2010
7
8
Overview Lab 860
1.1
Keypad
MODE
STO
CAL
RCL
SC
In this operating manual, keys are indicated by brackets <..> .
The key symbol (e.g. <OK>) indicates a keystroke in this operating manual.
MODE
CAL
SC
RCL
<On/Off>:
<On/Off
_
>:
Switch meter on / off
Reset calibration values
<MODE>:
<MODE
_
>:
<CAL>:
<CAL
_
>:
<SC>:
<SC
_
>:
Select measured parameter
Open setting menu for calibration and measurement
Call up calibration procedure
Display calibration data
Activate / deactivate stability control
Set interval for data transmission
<STO>:
<STO
_
>:
Store measured value
Set interval for automatic storage in memory
<RCL>:
<RCL
_
>:
Display / transmit measured values and calibration records
Erase stored measured values
<
scroll
<
scroll
<OK>:
<OK
_
>:
Confirm entries
Open setting menu for system settings ba75554e05 01/2010
Lab 860 Overview
1.2
Display
SET U pH BUFFER
1 8 8 8 8
°F
% mV/pH
Time
Day.Month
Year
Baud
No.
Ident
AutoCal
8
Auto Store
8
CalError
°C
TP
LoBat
SC RCL
Status display indicator
CalClock (calibration interval and sensor evaluation)
Measured value display
Temperature display and further function indicators
Function display indicators
[SET]
[BUFFER]
[AutoCal]
During calibration: number of the buffer set
During calibration: number of the buffer
Calibration with automatic buffer recognition
[Auto][Store] Automatic storing is switched on
[CalError] An error occurred during calibration
[LoBat]
[SC]
With battery operation: batteries almost empty
Stability control is active
[RCL]
[TP]
Memory display / memory download
Temperature measurement active ba75554e05 01/2010
9
Overview
1.3
Socket field
Lab 860
1
2
3
4
5
6
2
3
1
Connectors: pH electrode
Reference electrode
Temperature sensor
USB interface
Power pack
RS 232 interface
4 5 6
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 sensors - in particular SI Analytics GmbH sensors - fulfill these conditions.
10
ba75554e05 01/2010
Lab 860 Safety
Target group
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 instrument.
The meter was developed for work 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:
WARNING indicates instructions that must be followed precisely in order to avoid possibly great dangers to personnel.
Further notes
CAUTION indicates instructions that must be followed precisely in order to avoid the possibility of slight injuries or damage to the instrument or the environment.
Note
indicates notes that draw your attention to special features.
Note
indicates cross-references to other documents, e.g. operating manuals.
ba75554e05 01/2010
11
Safety Lab 860
Function and operational safety
2.1
Authorized use
This meter is authorized exclusively for pH and ORP measurements in the laboratory.
The technical specifications as given in chapter 7 T
(page 59) 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 instrument 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.
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
If the instrument was transported from a cold environment to a warm environment, the formation of condensate can lead to the faulty functioning of the instrument. In this event, wait until the temperature of the instrument reaches room temperature before putting the instrument back into operation.
CAUTION
The meter is only allowed to be opened by personnel authorized by SI Analytics GmbH.
12
ba75554e05 01/2010
Lab 860 Safety
Safe operation
If safe operation is no longer possible, the instrument 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 instrument.
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.
ba75554e05 01/2010
13
Safety Lab 860
14
ba75554e05 01/2010
Lab 860 Commissioning
Insert batteries
3 Commissioning
3.1
Scope of delivery
z Lab 860 laboratory meter z Power pack z 4 batteries 1.5 V Mignon type AA z USB cable with A plug and B plug z Transparent cover z Operating manual z CD-ROM with USB driver
3.2
Initial commissioning
Perform the following activities: z Insert batteries z Switch on the meter z Set the date and time z Connect the power pack (for line power operation only).
1 Open the battery compartment (1) on the underside of the meter.
2 Place four batteries (type Mignon AA) in the battery compartment.
3 Close the battery compartment (1).
The date (day) flashes in the display.
4
Set the date and time according to page 44.
ba75554e05 01/2010
15
Commissioning Lab 860
Switching on the meter
1
CAUTION
Make sure that the poles of the batteries are the right way round.
The
± signs on the batteries must correspond to the
± signs in the battery compartment.
Only use leakproof alkaline manganese batteries.
1 Switch on the meter with <On/Off>.
A display test is briefly displayed.
16
Setting the date and time
Connecting the power pack
2
You can either operate the measuring instrument with batteries or with the plug-in power supply. The plug-in power supply supplies the measuring instrument with low voltage (12 VDC). This saves the batteries.
CAUTION
The line voltage at the operating site must lie within the input
voltage range of the original power pack (see page 59).
CAUTION
Use original power packs only (see page 59).
3 Insert the plug into the socket of the pH meter.
4 Connect the original power pack to an easily accessible power outlet.
Note
You can carry out measurements without the power pack. ba75554e05 01/2010
Lab 860 Operation
4 Operation
4.1
Switching on the meter
1 Place the meter on a flat surface and protect it from intense light and heat.
2 Press the <On/Off> key.
A display test is briefly displayed.
Subsequently, the meter switches to the measuring mode
(measured value display).
Note
The meter has an energy saving feature to avoid unnecessary battery depletion during battery operation.
The energy saving feature switches off the meter if no key was pressed during the specified interval (setting the switch-off interval, see
The energy saving feature is not active: z if the meter is supplied via the power pack or the USB interface z if a PC is connected (with communication cable to RS232 interface) z if the printer cable is connected (for external printers).
ba75554e05 01/2010
17
Operation Lab 860
4.2
General operating principles
This section contains basic information on the operation of the Lab 860.
4.2.1
Operating modes
The instrument has the following operating modes: z Measurement
The display indicates the measurement data in the measured value display z Calibration
The display guides you thru a calibration procedure with calibration information z Storage
The meter stores measuring data automatically or manually z Transmitting data
The meter transmits measuring data and calibration records to a serial interface automatically or manually.
z Configuration
The system menu or a sensor menu with submenus, settings and functions is displayed
Keys
Functions
Representation
4.2.2
Operation
The meter is operated via keys. The keys can have different functions with long or short keystrokes.
Generally, with a short keystroke a function is carried out. A long keystroke opens a setting menu.
In a setting menu, settings are selected with the <
â–²><â–¼> keys.
A setting is confirmed with <OK>. With confirming, the setting is finished and the next setting is displayed.
In this operating manual, keys are indicated by brackets <..> .
The key symbol (e.g. <OK>) 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.
<OK
_
>).
18
ba75554e05 01/2010
Lab 860 Operation
Preparatory activities
Temperature sensor
4.3
Measuring
Perform the following preparatory activities when you want to measure:
1 Connect an electrode to the meter.
2 Adjust the temperature of the buffer solutions or test solutions, or measure the current temperature, if you measure without a temperature sensor.
3 Calibrate or check the meter with the electrode.
4 Select the measured parameter with <MODE>.
Note
Incorrect calibration of pH electrodes leads to incorrect measured values. Calibrate regularly before measuring.
CAUTION
When connecting an earthed PC/printer, measurements cannot be performed in earthed media as incorrect values would result.
The RS232 and USB interfaces are not galvanically isolated.
You can measure with or without a temperature sensor. If a temperature sensor is connected, it is indicated on the display by TP.
Note
The pH meter automatically recognizes the type of the temperature sensor used. Therefore, you can connect electrodes with an NTC30 or
Pt1000.
The temperature measurement is absolutely essential for a reproducible pH measurement. If the measurement is made without a temperature sensor, proceed as follows:
1 Measure the current temperature using a thermometer.
2 Set the temperature value with <
â–²><â–¼>.
Note
When calibrating without temperature sensor, also set the current temperature of each buffer solution manually (see <
â–²><â–¼>).
ba75554e05 01/2010
19
20
Operation Lab 860
4.3.1
Measuring the pH value
1
Perform the preparatory activities according to page 19.
2 Immerse the pH electrode in the test sample.
3 Using <MODE>, scroll as necessary until the measured parameter pH is displayed.
pH
6 9
2
9
4
2
8
°C
TP
Stability control SC
(drift control)
The stability control function (drift control) checks the stability of the measurement signal. The stability has a considerable effect on the reproducibility of the measured value.
For identical measurement conditions, the following criteria apply:
Drift within 15 sec < 0.02 pH units.
1 If necessary, call up the measured variable pH with <MODE>.
2 With <SC>, activate the stability control function.
The SC function display indicator appears.
The current measured value is frozen (hold function).
3 Start measurement with stability control with <OK>.
SC flashes until a stable measured value is reached.
This measured value is downloaded to the interface.
4 If necessary, start the next measurement with stability control with <OK>.
5 To terminate the stability control function: Press the <MODE> or <SC> key.
Note
The current measurement with stability control can be terminated at any time (accepting the current value) by pressing <OK>.
ba75554e05 01/2010
Lab 860 Operation
4.3.2
Measuring the ORP
The meter can, in conjunction with an ORP electrode, measure the
ORP (mV) of a solution.
1
Perform the preparatory activities according to page 19.
2 Immerse the ORP electrode in the test sample.
3 If necessary, call up the measured parameter U with <MODE>.
4 Wait for a stable measured value.
U
4 8
2 1
6
3
°C mV
TP
Note
ORP electrodes are not calibrated. However, you can check ORP electrodes using a test solution.
ba75554e05 01/2010
21
Operation Lab 860
22
Why calibrate?
When do you have to calibrate?
Buffer sets for calibration
4.4
Calibration
pH electrodes age. This changes the zero point (asymmetry) and slope of the pH electrode. As a result, an inexact measured value is displayed. Calibration determines the current values of the zero point and slope of the electrode and stores them. Thus, you should calibrate at regular intervals.
The calibration data is stored in the meter. z After connecting another electrode z If the CalClock has expired and flashes
You can use the buffer sets quoted in the table for an automatic calibration. The pH values are valid for the specified temperature values. The temperature dependence of the pH values is taken into account during calibration.
No.
Buffer set*
1
SI Analytics GmbH DIN buffers according to DIN 19266/NBS
2
3
4
5
6
7
SI Analytics GmbH Technical buffers according to DIN 19267
Merck1*
Merck2 *
Merck3 *
DIN 19267 *
Mettler Toledo USA *
pH values at
1.679
4.006
6.865
9.180
12.454
2.000
4.010
7.000
10.011
4.000
7.000
9.000
25 °C
25 °C
20°C
1.000
6.000
8.000
13.000
20°C
4.660
6.880
9.220
1.090
4.650
6.790
9.230
1.679
4.003
7.002
10.013
20°C
25 °C
25 °C ba75554e05 01/2010
Lab 860 Operation
No.
8
9
10
11
12
13
14
15
16
Buffer set*
Mettler Toledo TEC *
Fisher *
Fluka BS *
Radiometer *
Baker *
Metrohm *
Beckman *
Hamilton Duracal *
Precisa *
3.996
7.003
8.999
4.005
7.005
10.013
4.005
7.002
10.013
3.996
7.003
8.999
pH values at
1.995
4.005
7.002
9.208
25 °C
25 °C 2.007
4.002
7.004
10.002
4.006
6.984
8.957
1.678
4.005
7.000
9.180
4.006
6.991
10.008
25 °C
25 °C
25 °C
25 °C
25 °C
25 °C
25 °C
* Brand names or trade names are trademarks of their respective
owners protected by law (see page 67).
ba75554e05 01/2010
23
Operation Lab 860
Note
The buffer set is selected in the menu for measurement settings (see
A list of the stored buffer sets can be downloaded to the interface (Set
1 ... 16) with <CAL
_
> while selecting the buffer set in the menu for measurement settings.
Calibration points
Calibration can be performed using one to five buffer solutions in any order (single-point to five-point calibration). The meter determines the following values and calculates the calibration line as follows:
Displayed calibration data
1-point
Determined values
ASY
2-point
3-point to
5-point
ASY
SLO
ASY
SLO z Zero point = ASY z Slope = Nernst slope
(-59.2 mV/pH at 25 °C) z Zero point = ASY z Slope = SLO z Zero point = ASY z Slope = SLO
The calibration line is calculated by linear regression.
Note
You can display the slope in the units, mV/pH or %.
You can display the zero point in the units, mV or pH.
AutoCal
Stability control
Calibration record
is adapted to the permanently programmed buffer solutions as a fully automatic calibration. The buffer solutions are automatically recognized by the meter.
The calibration procedure automatically activates the stability control function.
The current measurement with stability control can be terminated at any time (accepting the current value) by pressing <OK>.
When finishing a calibration, the new calibration values are first displayed as an informative message and stored. )
24
ba75554e05 01/2010
Lab 860 Operation
Displaying the calibration data
You can display the data of the last calibration (see page 36).
Subsequently, you can transmit the displayed calibration data to the interface, e. g. to a printer or PC, with the <CAL
_
> key.
Note
The calibration record is automatically transmitted to the interface after calibrating.
Sample record:
16.09.2005 08:53:54
Lab 860 02320025
Calibration pH
Cal time: 16.09.2005 08:22:14
Cal interval:7d
AutoCal TEC
Buffer 1 2.000
Buffer 2 4.010
Buffer 3 7.000
Buffer 4 10.011
b1 -177.0 mV 25.0 °C b2 177.0 mV 25.0 °C b3 0.0 mV 25.0 °C
Slope : -58.99 mV/pH
Asymmetry : 0.4 mV
Sensor : +++
Calibration evaluation
After calibrating, the meter automatically evaluates the calibration. The zero point and slope are evaluated separately. The worse evaluation of both is taken into account. The evaluation appears on the display as the CalClock and in the calibration record.
CalClock Calibration record
+++
Zero point
[mV]
-15 ... +15
Slope
[mV/pH]
-60.5 ... -58
++ -20 ... +20 -58 ... -57
+
-
-25 ... +25
-30 ... +30
-61 ... -60.5 or
-57 ... -56
-62 ... -61 or
-56 ... -50
Clean the electrode according to the sensor operating manual ba75554e05 01/2010
25
Operation Lab 860
CalClock
CalError
Calibration record
CalError
Zero point
[mV]
< -30 or
> 30
Eliminate the error according to
Slope
[mV/pH]
... -62 or
... -50
Preparatory activities
1 Switch on the meter with <On/Off>.
2 Connect a pH electrode to the meter.
3 Keep the buffer solutions ready.
4 Adjust the temperature of the solutions and measure the current temperature if the measurement is made without temperature sensor.
5 Set the buffer set to be used for calibration as necessary.
26
ba75554e05 01/2010
Lab 860 Operation
4.4.1
Calibration interval (Int.C)
The calibration interval and calibration evaluation are indicated on the display as the CalClock.
CalClock
The remaining time of the calibration interval is indicated by the segmented ring around the calibration evaluation. This segmented ring reminds you to calibrate regularly.
After the specified calibration interval (Int.C) has expired, the outer ring of the CalClock flashes. It is still possible to measure.
Note
To ensure the high measuring accuracy of the meter, calibrate after the calibration interval has expired.
Setting the calibration interval
The calibration interval (Int.C) is set to 7 days (d7) in the factory.
You can change the interval (1 ... 999 days):
1 Open the menu for measurement settings with <MODE
_
>.
2 Confirm all settings with <OK> until Int.C is displayed.
pH
Time
1
D
N T C
7
3 Set the calibration interval with <
â–²><â–¼>.
4 Confirm the setting with <OK>.
ba75554e05 01/2010
27
28
Operation Lab 860
4.4.2
Automatic calibration (AutoCal)
Use any one to five buffer solutions of the selected buffer set.
Note
The steps 2, 6 and 10 are not necessary if you use a temperature sensor.
1 Start the calibration with <CAL>.
The number of the specified buffer set is displayed (SET 1 ...
16).
The first buffer (BUFFER 1) of the buffer set (SET_x) is requested.
SET
1
BUFFER pH
2 5
1
8
°C
AutoCal
TP
2 If necessary, set the temperature of the buffer solution with
<
â–²><â–¼>.
3 Immerse the pH electrode in the first buffer solution.
4 Start the measurement with <OK>.
The SC display indicator flashes.
Depending on the setting, the display shows the nominal pH value for the recognized buffer or the electrode voltage (mV).
As soon as a stable value is recognized, the next buffer
(BUFFER 2) is requested.
ba75554e05 01/2010
Lab 860 Operation
SET
1
BUFFER pH
2 5
2
8
°C
AutoCal
TP
Continue with two-point calibration
Note
Here you can cancel the calibration procedure with <MODE>. This corresponds to a single-point calibration. The value of the zero point
(Asy) is displayed for 10 seconds, then the value of the slope (Slo) is displayed for 10 seconds. After this the meter switches to the measuring mode.
5 Thoroughly rinse the electrode with distilled water.
6 If necessary, set the temperature of the second buffer solution with <
â–²><â–¼>.
7 Immerse the pH electrode in the second buffer solution.
8 Start the measurement with <OK>.
The SC display indicator flashes.
Depending on the setting, the display shows the nominal pH value for the recognized buffer or the electrode voltage (mV).
As soon as a stable value is recognized, the next buffer
(BUFFER 3) is requested.
SET
1
Buffer pH
2
5
3
8
°C
AutoCal
DIN
TP ba75554e05 01/2010
29
Operation Lab 860
Continue with threepoint to five-point calibration
Note
Here you can cancel the calibration procedure with <MODE>. This corresponds to a two-point calibration. The value of the zero point
(Asy) is displayed for 10 seconds, then the value of the slope (Slo) is displayed for 10 seconds. After this the meter switches to the measuring mode.
9 Thoroughly rinse the electrode with distilled water.
10 If necessary, set the temperature of the third buffer solution with <
â–²><â–¼>.
11 Immerse the pH electrode in the third buffer solution.
12 Press the <OK> key.
The SC display indicator flashes.
Depending on the setting, the display shows the nominal pH value for the recognized buffer or the electrode voltage (mV).
As soon as a stable value is recognized, the next buffer is requested.
Note
Here you can cancel the calibration procedure with <MODE>.
The value of the zero point (Asy) is displayed for 10 seconds, then the value of the slope (Slo) is displayed for 10 seconds. After this the meter switches to the measuring mode.
The calibration is automatically finished after all buffers of a buffer set were used.
Note
While the zero point (ASY) is being displayed, you can change the unit of the zero point with
<
â–²><â–¼>
.
While the slope (SLO) is being displayed, you can change the unit of the slope with
<
â–²><â–¼>
.
The % display refers to the Nernst slope of 59.2 mV/pH at 25° C (100 x determined slope/Nernst slope).
The unit of zero point and slope can be permanently changed in the
measurement settings (see page 46).
Note
The calibration line is calculated by linear regression.
30
ba75554e05 01/2010
Lab 860
ba75554e05 01/2010
Operation
4.5
Saving
The pH meter has an internal data memory. It can store up to 800 datasets.
A complete dataset consists of: z Date/time z Memory location number z ID number z Measured value z Temperature z Temperature measuring procedure (manual or automatic)
You can transmit measured values (datasets) to the data memory in two ways: z Store manually (<STO>) z Switch on AutoStore (Int.1) (<STO
_
>).
4.5.1
Manual storage
You can transmit a measured value to the data memory as follows:
1 Store the measurement dataset with <STO>.
The consecutive number of the next free memory location is shown on the display.
pH
No.
6
N
9 9
Store
2
4
2 Confirm with <OK>.
The display switches to entering the ID number.
31
32
Operation Lab 860
pH
Ident
6 9
9
0
Store
2
1
3 Using <
â–²><â–¼>, enter the required ID number (1 ... 9999).
4 Confirm with <OK>.
The dataset is stored.
The meter switches to the measuring mode.
Message StoFull
This message appears when all of the 800 memory locations are occupied.
When the memory is full, you can: z press <OK> to store the current measured value.
The oldest measured value (memory location 1) will be overwritten by this z press
<MODE>
to switch to the measured value display without storing z
download the data memory (see page 35)
z
clear the memory (see page 36).
ba75554e05 01/2010
Lab 860 Operation
Setting the save interval
4.5.2
Automatic storage at intervals (AutoStore)
In order to store measured values automatically at certain time intervals, set the storage interval (Int.1).
The default setting for the storage interval (Int 1) is OFF.
By this, the AutoStore function is switched off.
To switch the function on, set an interval (5 s, 10 s, 20 s, 30 s, 1 min, 2 min, 5 min, 10 min, 20 min, 30 min, 60 min):
Note
When the AutoStore function is active, the automatic switchoff function is off.
1 Using <STO
_
>, call up the setting menu for automatic storing
(Int.1) .
Time
I n
1
Auto Store
t
0
1
0
2 Set the required interval with <
â–²><â–¼>.
3 Confirm with <OK>.
FrEE, the number of free memory locations is displayed.
F
199 r E E ba75554e05 01/2010
33
34
Operation Lab 860
4 Confirm with <OK>.
Ident, the entry of the ID number is displayed.
Ident
1
5 Set the required ID number with <
â–²><â–¼>.
6 Confirm with <OK>.
The meter switches to the measured value display and starts the measuring and storing procedure.
AutoStore flashes on the display.
7 As soon as all of the 800 memory locations are occupied,
AutoStore is terminated (Int.1 = OFF).
If there are not enough memory locations available for your measurements:
– Output and backup the data memory (see page 35) and
– clear the memory (see page 36).
Switching off the automatic storing function
You can terminate the automatic storing function in the following ways: z set the storage interval (Int.1) to OFF, or z switch the meter off and then on again.
ba75554e05 01/2010
Lab 860 Operation
4.5.3
Downloading the data memory
You can download stored measurement datasets: z to the display
Download to the display
1 Open the memory menu with <RCL>.
2 If necessary, scroll with <RCL> until Sto disp (measurement datasets) is displayed.
3 Press <OK> to display the dataset that was last stored.
The memory location of the dataset is displayed for approx. 2 s, then the respective temperature appears.
pH
6 8
2
6
5
6
5
°C
TP
RCL
While the memory is displayed you can: z press
<OK>
to display further data of the dataset (ID number, date, time, memory location, temperature) z press <
â–²> to display the next dataset z press <
â–¼> to display the previous dataset
Note
In order to search for certain data of the dataset, e.g. for the date, proceed as follows:
1 Use <OK> to scroll on until the required data, e. g. the date, is displayed.
2 Use <
â–²> or <â–¼> to scroll until the required date is displayed.
After approx. 2 s the display shows the respective temperature value.
ba75554e05 01/2010
35
Operation Lab 860
36
Download to display via memory menu
4.5.4
Erasing the data memory
You can erase all stored measurement datasets.
1 Open the memory menu with <RCL>.
2 If necessary, scroll with <RCL> until Sto disp or Sto prt is displayed.
3 Press <RCL
_
> to display the Clr All function.
4 Press <OK> to erase the entire contents of the memory. or
Return to the measured value display with <MODE>.
The stored data is retained.
4.5.5
Downloading calibration data
You can download calibration data: z to the display
– via the memory menu
– via the calibration menu
z to the interface (see page 39)
1 Open the memory menu with <RCL>.
2 If necessary, scroll with <RCL> until CAL diSP is displayed.
3 Press <OK> to display the calibration data.
The following data is displayed consecutively for 10 seconds each: date, zero point, slope.
Day.Month
C A
AutoCal
3 0
L
9
While the calibration data is being displayed, you can: ba75554e05 01/2010
Lab 860 Operation
z press <OK> to display further calibration data
(date, zero point, slope) z press
<
â–²><â–¼> z press
<
â–²><â–¼> z press
<CAL
_
>
to switch over the unit of the zero point (Asy)
(while the zero point is being displayed) to switch over the unit of the slope (Slo)
(while the slope is being displayed) to download the calibration record to the interface
Download to display via calibration menu
1 Press <CAL
_
> to display the calibration data.
The following data is displayed consecutively for 10 seconds each: date, zero point, slope.
While the calibration data is being displayed, you can: z press <OK> to display further calibration data
(date, zero point, slope) z press
<
â–²><â–¼> z press
<
â–²><â–¼> z press
<CAL
_
>
to switch over the unit of the zero point (Asy)
(while the zero point is being displayed) to switch over the unit of the slope (Slo)
(while the slope is being displayed) to download the calibration record to the interface ba75554e05 01/2010
37
Operation Lab 860
4.6
Transmitting data
The meter has two interfaces: z RS232 interface (serial port) z USB interface (device)
Via both interfaces, you can transmit data to a PC and update the meter software.
The meter is supplied with power via the USB interface.
The RS232 interface enables to transmit data to an external printer.
Note
The relevant interface cable has to be connected if you want to download data to an interface (USB or RS232).
It is not possible to download data to both interfaces (USB and RS232) at the same time. After connecting a meter to the USB socket the
RS232 interface is inactive. The RS232 interface is active if no meter is connected to the USB interface.
CAUTION
The interfaces are not galvanically separated.
When connecting an earthed PC/printer, measurements cannot be performed in earthed media as incorrect values would result.
38
ba75554e05 01/2010
Lab 860 Operation
4.6.1
Options for data transmission
Via the USB interface you can transmit data to a PC. Via the RS 232 interface, you can transmit data to a PC or an external printer.
The following table shows which data are transmitted to the interface in which way:
Data
Current measured values
Control
Manual
Automatic, at intervals
Automatic
Stored measured values
Manual
Calibration records Manual
Automatic
Operation / description
z With <OK>.
z Simultaneously with every manual storage process
z With <SC
_
>. Then you can set the transmission
z After each measurement with stability control.
z All datasets
z Without display indication
z During the display indication with <CAL
_
>
z On completion of a calibration procedure.
ba75554e05 01/2010
39
Operation Lab 860
Setting the download interval
4.6.2
Automatically downloading measurement datasets at intervals
In order to automatically download to the interface measured values at certain time intervals, set the download interval (Int.2).
The default setting for the download interval (Int 2) is OFF.
To switch the function on, set an interval (5 s, 10 s, 20 s, 30 s, 1 min, 2 min, 5 min, 10 min, 20 min, 30 min, 60 min):
1 Press <SC
_
> to open the setting of the Int.2 interval.
2 If necessary, set an interval with <
â–²><â–¼>.
3 Close the setting with <OK>.
The download to the interface takes place at the specified interval.
4.6.3
Downloading stored measurement datasets
1 Open the memory menu with <RCL>.
2 If necessary, scroll with <RCL> until Sto Prt is displayed.
3 Press <OK> to download the calibration data to the interface.
4.6.4
Downloading calibration data
1 Open the memory menu with <RCL>.
2 If necessary, scroll with <RCL> until CAL Prt is displayed.
3 Press <OK> to download the calibration data to the interface.
4.6.5
RS232 interface
1 Connect the interface to the PC or printer via the cable Z390
(PC) or Z393 (ext. printer).
2 If necessary, disconnect a connected USB cable from the meter.
40
ba75554e05 01/2010
Lab 860 Operation
Socket assignment
(RS232)
Installation of the USB driver on the PC
3 Set up the following transmission data at the PC/printer:
– Baud rate: selectable from 1200, 2400, 4800, 9600,
– Handshake: RTS/CTS + Xon/Xoff
– PC only:
– Parity: none
– Data bits: 8
– Stop bits: 2
4
5
3
6
1
2
RS 232
1 *
2 RxD
3 TxD
5 SGnd
6 CTS
* not used
4.6.6
USB interface (device)
Connect the interface to the PC via the supplied Z875 USB cable. The data output automatically switches to USB. The RS232 interface is deactivated.
System requirements of the PC for installation of the USB driver: z PC with Pentium processor or higher with at least one free USB connection and CD-ROM drive z Windows 2000, XP, Vista.
1 Insert the supplied installation CD in the CD drive of your PC.
2 Install the USB driver on the PC.
Follow the Windows installation instructions as necessary.
3
The meter is listed as a virtual COM interface among the connections in the Windows instrument manager.
ba75554e05 01/2010
4.6.7
Operation with MultiLab pilot
With the aid of the MultiLab pilot software, you can record and evaluate measuring data with a PC. The data is transmitted after the meter is connected to the RS232 serial interface or USB interface of a PC.
Note
More detailed information can be found in the MultiLab pilot software
41
Operation
operating manual.
Lab 860
42
ba75554e05 01/2010
Lab 860 Operation
4.7
Settings
You can adapt the meter to your individual requirements. The settings are done in the following menus: z System settings (<OK
_
>)
– Baud rate (Baud)
– Switch-off interval (t.Off)
– Date (Day.Month)
– Date (Year)
– Time (Time) z Settings for calibration and measurement (<MODE
_
>)
– Number of the buffer set for pH calibration (Set 1 ... 16)
– Display of the buffer during calibration
(pH nominal value or measured voltage value in mV)
– Unit of the value for the slope (mV/pH or %)
– Unit of the value for the zero point (mV, pH)
– Resolution (Hi, Lo)
– Temperature unit (°C / °F)
– Calibration interval (Int.C [0 ... 999]) z Setting for data download (<SC
_
>)
– Data download interval (Int.2)
Note
You can exit the setting menu at any time by pressing <MODE>.
Settings already modified and confirmed with <OK> are stored. ba75554e05 01/2010
43
Operation
Baud rate (Baud)
4.7.1
System settings
The default setting is printed in bold.
Baud rate (Baud) 1200, 2400, 4800, 9600
Switch-off interval (t.Off) 10, 20, 30, 40, 50 min,
1, 2, 3, 4, 5, 10, 15, 20, 24 h
Date (Day.Month)
Date (Year)
Time (Time)
Any
Any
Any
1 Open the menu for system settings with <OK
_
>.
The first system setting is displayed.
Lab 860
44
Baud
0
2 Set the required baud rate with <
â–²><â–¼>
.
3 Confirm with <OK>.
t.OFF, the setting of the switch-off interval is displayed.
Switch-off interval
(t.OFF)
Time
t O f f
0 ba75554e05 01/2010
Lab 860
Date and time
4 Set the switch-off interval with <
â–²><â–¼>.
5 Confirm with <OK>.
Day.Month, the setting of the date is displayed.
The day display flashes.
Operation
Day.Month
3
6 Set the date of the current day with <
â–²><â–¼>
.
7 Confirm with <OK>.
The month display flashes.
8 Set the current month with <
â–²><â–¼>
.
9 Confirm with <OK>.
Year, the setting of the year is displayed.
10 Set the year with <
â–²><â–¼>
.
11 Confirm with <OK>.
The setting of the time is displayed.
The hour display flashes.
12 Set the current hour with <
â–²><â–¼>
.
13 Confirm with <OK>.
The minute display flashes.
14 Set the current minute with <
â–²><â–¼>
.
15 Confirm with <OK>.
The system settings are completed.
The meter switches to the measuring mode.
ba75554e05 01/2010
45
46
Operation Lab 860
Buffer set for pH calibration
(SET)
4.7.2
Measurement settings
These settings apply to calibration and measurement (the default setting is printed in bold).
Number of the buffer set for pH calibration (SET)
Display during calibration (BUFFER)
1 ... 16
pH (buffer nominal value),
U (electrode voltage)
%, mV/pH
pH, mV
Unit of the value for the slope (SLO)
Unit of the value for the zero point
(ASY)
Resolution (rES)
Temperature unit (UnIt)
Calibration interval (Int.C)
HI (0.001), Lo (0.01)
°C, °F
0 ... 7 ... 999 d
1 Open the menu for measurement settings with <MODE
_
>.
Set 1 ... 16, the specified buffer set is displayed.
SET
1
AutoCal
2 Using <
â–²><â–¼>, select a buffer set Set 1 ... 16.
3 Confirm with <OK>.
bUFF, the setting of the display during calibration is displayed.
ba75554e05 01/2010
Lab 860 Operation
Display during calibration
(bUFF)
pH b U p
F
H
F
AutoCal
4 Using <
â–²><â–¼>, select the display during calibration pH or U.
5 Confirm with <OK>.
SLO, the unit of the value for the slope (mV/pH or %) is displayed.
Unit of the value for the
slope (SLO) pH
S
L
O mV/pH
6 Using <
â–²><â–¼>, select the unit for the slope.
7 Confirm with <OK>.
ASY, the unit of the value for the zero point (mV or pH) is displayed.
ba75554e05 01/2010
47
48
Operation
Unit of the value for the
zero point (ASY) pH
A S Y mV
Resolution
(rES)
8 Using <
â–²><â–¼>, select the unit for the zero point.
9 Confirm with <OK>.
rES, the setting of the resolution is displayed.
pH r e
H s
I
10 Using <
â–²><â–¼>, toggle between Hi (0.001)and Lo (0.01).
11 Confirm with <OK>.
Unit, the setting of the unit of the temperature value is displayed.
Lab 860
ba75554e05 01/2010
Lab 860
Temperature unit (Unit)
U n t
C
°C
TP
12 Using <
â–²><â–¼>, toggle between °C and °F.
13 Confirm with <OK>.
Int.C, the setting of the calibration interval is displayed.
Calibration interval
(Int.C)
Time
I N d
AutoCal
T
C
7
14 Set the interval with <
â–²><â–¼>.
15 Confirm with <OK>.
The measurement settings are completed.
The meter switches to the measuring mode.
Operation
ba75554e05 01/2010
49
50
Operation Lab 860
4.7.3
Interval for automatic data transmission
The interval for automatic data transmission serves to transmit the current measurement dataset to the interface at the specified interval.
Data transmission interval
(Int.2)
OFF, 5 s, 10 s, 20 s, 30 s, 1 min, 2 min,
5 min, 10 min, 20 min, 30 min, 60 min
1 Press <SC
_
> to open the setting for the transmission interval.
Int.2, the setting of the transmission interval is displayed.
Data transmission interval
I N
T
5
2
0
2 Press <
â–²><â–¼> to select an interval.
3 Confirm with <OK>.
The setting of the interval for the data transmission to the interface is completed.
The meter switches to the measuring mode.
ba75554e05 01/2010
Lab 860 Operation
Calibration values in the default condition
Resetting calibration values
4.8
Reset
4.8.1
Resetting calibration values
This function resets the calibration values to the default condition. All other meter settings are retained.
Zero point
Slope pH 7.000 (0 mV)
100 % (-59.2 mV/pH)
Note
The measuring system is not calibrated after a reset. Before measuring recalibrate the meter.
1 Press <On/Off
_
> to open the menu for the reset of the calibration data.
Init.C is displayed.
pH
I n i t n
C o
2 Press <
â–²><â–¼> to display no or YES.
YES: Reset the calibration values.
no: Retain the calibration values.
3 Confirm with <OK>.
The menu is finished.
The meter switches to the measuring mode.
ba75554e05 01/2010
51
52
Operation Lab 860
4.8.2
Resetting all meter settings
This function resets to the default condition all meter settings including the calibration values. The corresponding values are given on the following pages:
Calibration values
System settings
Measurement settings
Resetting the meter settings
1 Switch on the meter with <On/Off>.
The display test appears briefly on the display.
2 During the display test, press <MODE> to open the menu for the reset of the meter settings.
Init is displayed.
I n i n t o
3 Press <
â–²><â–¼> to display no or YES.
YES: Reset the meter settings.
no: Retain the meter settings.
4 Confirm with <OK>.
The menu is finished.
The meter switches to the measuring mode.
Note
The measuring system is not calibrated after a reset. Before measuring recalibrate the meter.
ba75554e05 01/2010
Lab 860 Maintenance, cleaning, disposal
5 Maintenance, cleaning, disposal
5.1
Maintenance
The only maintenance activity required is replacing the batteries.
Note
For maintenance of the electrodes refer to the relevant operating manuals.
5.1.1
Replacing the batteries
1 Open the battery compartment (1) on the underside of the meter.
2 Remove the four batteries from the battery compartment.
3 Place four new batteries (type Mignon AA) in the battery compartment.
4 Close the battery compartment (1).
The date (day) flashes in the display.
5
Set the date and time according to page 44.
ba75554e05 01/2010
1
CAUTION
Make sure that the poles of the batteries are the right way round.
The
± signs on the batteries must correspond to the
± signs in the battery compartment.
Only use leakproof alkaline manganese batteries.
53
Maintenance, cleaning, disposal Lab 860
5.2
Cleaning
Occasionally wipe the outside of the meter with a damp, lint-free cloth.
Disinfect the housing with isopropanol as required.
CAUTION
The housing is made of synthetic material (ABS). Thus, avoid contact with acetone or similar detergents that contain solvents.
Remove any splashes immediately.
5.3
Packing
This meter is sent out in a protective transport packing.
We recommend: Keep the packing material. The original packing protects the instrument against damage during transport.
Batteries
5.4
Disposal
This note refers to the battery regulation that applies in the Federal
Republic of Germany. We would ask end-consumers in other countries to follow their local statutory provisions.
Note
This instrument contains batteries. Batteries that have been removed must only be disposed of at the recycling facility set up for this purpose or via the retail outlet.
It is illegal to dispose of them in household refuse.
54
ba75554e05 01/2010
Lab 860 What to do if...
6 What to do if...
Error message
Err1
Cause
pH electrode:
– Measured value outside the measuring range
– Air bubble in front of the junction
– Air in the junction
– Cable broken
– Gel electrolyte dried out
Remedy
– Use a suitable electrode
– Remove air bubble
– Extract air or moisten junction
– Replace the electrode
– Replace the electrode
Error message
Err2
Cause
– No electrode connected
– Setting time during calibration too long
Remedy
– Connect the electrode
– Adjust temperature if necessary
– Recalibrate
Error message
Err4
Cause
– Temperature not stable during calibration.
Remedy
– Adjust temperature if necessary
– Recalibrate
Error message
CalError
Cause
pH electrode:
– The values determined for zero point and slope of the electrode are outside the allowed limits.
– Junction contaminated
– Electrode broken
Buffer solutions:
Remedy
– Recalibrate
– Clean junction
– Replace the electrode ba75554e05 01/2010
55
What to do if...
Lab 860
No stable measured value
Cause
– Incorrect buffer solutions
– Buffer solutions too old
– Buffer solutions depleted
Cause
pH electrode:
– Junction contaminated
– Membrane contaminated
Test sample:
– pH value not stable
– Temperature not stable
Remedy
– Change calibration procedure
– Use only once.
Note the shelf life
– Change solutions
Remedy
– Clean junction
– Clean membrane
– Measure with air excluded if necessary
– Adjust temperature if necessary
Electrode + test sample:
– Conductivity too low
– Temperature too high
– Organic liquids
Display,
LoBat
Cause
– Batteries almost empty
– Use a suitable electrode
CalClock flashes
Cause
– Calibration interval expired
Remedy
– Recalibrate the measuring system
Remedy
– Replace the batteries (see
56
ba75554e05 01/2010
Lab 860 What to do if...
Display
to
Cause
– Time-out of the interface
Remedy
– Check that the instrument is connected
Obviously incorrect measured values
Cause
pH electrode:
– pH electrode unsuitable
– Temperature difference between buffer and test sample too high
– Measurement procedure not suitable
Remedy
– Use a suitable electrode
– Adjust temperature of buffer or sample solutions
– Follow special procedure
Instrument does not react to keystroke
You want to know which software version is in the instrument
Cause
– Operating condition undefined or EMC load unallowed
Remedy
– Processor reset:
Press and hold the <SC> key and switch the meter on
Cause
– E. g., a question by the service department
Remedy
– Switch on the meter.
During the display test, display the software version with <OK>.
Message StoFull
Cause
– All 800 memory locations are full
Remedy
– Output data memory and clear data memory ba75554e05 01/2010
57
What to do if...
Lab 860
58
ba75554e05 01/2010
Lab 860
Translation of the legally binding German version
7 Technical data
7.1
General data
Dimensions
Weight
Mechanical structure
Electrical safety
Test certificates
Ambient
conditions
Power supply
Serial interface
USB interface
Technical data
Stand October 30, 2009 approx. 240 x 190 x 80 mm approx. 1.0 kg (without power pack, without stand)
Type of protection IP 43
Protective class cETLus
III
Storage
Operation
Climatic class
Batteries
- 25 °C ... + 65 °C
0 °C ... + 55 °C
2
Operational life
Power pack
(charging device)
4 x 1.5 V alkali-manganese batteries, Type
AA
Approx. 1000 operating hours
FRIWO FW7555M/09, 15.1432.500-00
Friwo Part. No. 1883259
Input: 100 ... 240 V ~ / 50 ... 60 Hz / 400 mA
Output: 9 V = / 1.5 A
Connection max. overvoltage category II
Primary plugs contained in the scope of delivery: Euro, US, UK and Australian.
Automatic switch-over when a cable Z 875, Z 391 is connected.
Baud rate adjustable:
1200, 2400, 4800, 9600 Baud
Type RS232, bidirectional
Data bits
Stop bits
Parity
Handshake
8
2
None
RTS/CTS+Xon/Xoff
Automatic switch-over when a USB cable is connected.
Type
Cable length
USB 1.1 (device) max. 3 m ba75554e05 01/2010
59
Technical data
Translation of the legally binding German version
Guidelines and norms used
EMC
Instrument safety
Climatic class
IP protection
Lab 860
Stand October 30, 2009
EC guideline 2004/108/EC
EN 61326-1 Class B
FCC Class A
EC guideline 2006/95/EC
EN 61010-1
ANSI/UL 61010-1
CAN/CSA-C22.2 No. 61010-1
VDI/VDE 3540
EN 60529
60
ba75554e05 01/2010
Lab 860 Technical data
Translation of the legally binding German version Stand October 30, 2009
7.2
Measuring ranges, resolution, accuracy
Measuring ranges, resolution
Manual temperature input
Variable
pH
U [mV]
T [°C]
T [°F]
Variable
T manual
[°C]
T manual
[°F]
Measuring range
- 2.000 ... + 19.999
- 2.00 ... + 19.99
- 999.9 ... + 999.9
- 2000 ... + 2000
- 5.0 ... + 120.0
+ 23.0 ... + 248.0
Range
- 25 ... + 125
- 13 ... + 257
Resolution
0.001
0.01
0.1
1
0.1
0.1
Increment
1
1
Accuracy (± 1 digit) Variable Accuracy Temperature of the test sample
pH / range *
- 2.000 ... + 19.999
± 0.005
- 2.00 ... + 19.99
± 0.01
U [mV] / range
- 999.9 ... + 999.9
- 2000 ... + 2000
± 0.3
± 1
+ 15 °C ... + 35 °C
+ 15 °C ... + 35 °C
+ 15 °C ... + 35 °C
+ 15 °C ... + 35 °C
T [°C] / temperature sensor
NTC 30
± 0.1
PT 1000
± 0.3
* when measuring in a range of ± 2 pH around a calibration point
Note
The accuracy values specified here apply exclusively to the meter. The accuracy of the electrodes and buffer solutions has to be taken into account additionally.
ba75554e05 01/2010
61
Technical data
Translation of the legally binding German version
Lab 860
Stand October 30, 2009
62
ba75554e05 01/2010
Lab 860 Lists
Abbreviations
Specialist terms
8 Lists
This chapter provides additional information and orientation aids.
The list of abbreviations explains abbreviations that appear on the display or when dealing with the instrument.
The glossary briefly explains the meaning of the specialist terms.
However, terms that should already be familiar to the target group are not described here.
Trademarks used
The list comprises the trademarks used in the present document and their owners.
Index
The index will help you to find the topics that you are looking for.
ba75554e05 01/2010
63
Lists
64
Lab 860
LoBat mV mV/pH pH
RCL
S
SC
SELV
SEr
Abbreviations
°C
°F
ASY
AutoCal
Cal
CalError disp
Err1
Err2, Err4
InI
SLO
Sto
TP
Temperature unit °Celsius
Temperature unit, °Fahrenheit
Zero point (asymmetry)
Automatic calibration using a selected buffer set
Calibration
Error message (see W
HAT TO DO IF
...)
Display
Data memory is displayed
Overflow
Display range exceeded
Error message (see W
HAT TO DO IF
...)
Initialization
Resets individual basic functions to the status they had on delivery
Low Battery (batteries almost empty)
Voltage unit
Unit of the electrode slope pH value
Recall (memory download)
Slope value
Stability control (drift control)
Safety Extra Low Voltage
Serial interface
Download of the data memory to the RS 232
Slope (slope on calibration)
Store (memory)
Temperature Probe
Temperature measurement active ba75554e05 01/2010
Lab 860 Lists
Asymmetry
Resolution
AutoRange
Junction
Adjusting
Calibration
Electromotive force of an electrode
Measured variable
Test sample
Measured value
Molality
Zero point pH value
Glossary
see zero point
Smallest difference between two measured values that can be displayed by a meter.
Name of the automatic selection of the measuring range.
The junction is a porous body in the housing wall of reference electrodes or electrolyte bridges. It arranges the electrical contact between two solutions and makes the electrolyte exchange more difficult. The expression, junction, is also used for ground or junctionless transitions.
To manipulate a measuring system so that the relevant value (e. g. the displayed value) differs as little as possible from the correct value or a value that is regarded as correct, or that the difference remains within the tolerance.
Comparing the value from a measuring system (e. g. the displayed value) to the correct value or a value that is regarded as correct.
Often, this expression is also used when the measuring system is adjusted at the same time (see adjusting).
The electromotive force (voltage) U of the electrode is the measurable electromotive force of an electrode in a solution. It equals the sum of all the galvanic voltages of the electrode. Its dependency on the pH results in the electrode function which is characterized by the parameters, slope and zero point.
The measured parameter is the physical dimension determined by measuring, e. g. pH, conductivity or DO concentration.
Designation of the test sample ready to be measured. Normally, a test sample is made by processing the original sample. The test sample and original sample are identical if the test sample was not processed.
The measured value is the special value of a measured parameter to be determined. It is given as a combination of the numerical value and unit (e. g. 3 m; 0.5 s; 5.2 A; 373.15 K).
Molality is the quantity (in Mol) of a dissolved substance in 1000 g solvent.
The zero point of a pH electrode is the pH value at which the electromotive force of the pH electrode at a specified temperature is zero. Normally, this is at 25 °C.
The pH is a measure of the acidic or basic effect of an aqueous solution. It corresponds to the negative decadic logarithm of the molal hydrogen ions activity divided by the unit of the molality. The practical pH value is the value of a pH measurement.
ba75554e05 01/2010
65
Lists Lab 860
Potentiometry
ORP voltage
Reset
Stability control
Standard solution
Slope
Name of a measuring technique. The signal (depending on the measured parameter) of the electrode is the electrical potential. The electrical current remains constant.
The ORP is caused by oxidizing or reducing substances dissolved in water if these substances become effective on an electrode surface
(e. g. a gold or platinum surface).
Restoring the original condition of all settings of a measuring system.
Function to control the measured value stability.
The standard solution is a solution where the measured value is known by definition. It is used to calibrate a measuring system.
The slope of a linear calibration function.
66
ba75554e05 01/2010
Lab 860
Trademarks used
Trademark
Mettler Toledo
Fisher
Fluka
Radiometer
Baker
Metrohm
Beckman
Hamilton
Precisa
Windows
Owner of the trademark
Mettler Toledo
Fisher Scientific Company
Fluka AG
Radiometer
Mallinckrodt Baker, Inc.
Metrohm AG
Beckman Instruments, Inc.
Hamilton Company Corporation
Precisa Instruments AG
Microsoft Corporation
Lists
ba75554e05 01/2010
67
Lists Lab 860
68
ba75554e05 01/2010
Lab 860
Index
A
Authorized use . . . . . . . . . . . . . . . . . . . . . . 12
AutoCal . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
AutoStore . . . . . . . . . . . . . . . . . . . . . . . . . . 33
B
Battery compartment . . . . . . . . . . . . . . 15, 53
Baud rate setting . . . . . . . . . . . . . . . . . . . . 44
C
CalClock . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Calibration . . . . . . . . . . . . . . . . . . . . . . . . . 22
Calibration evaluation pH . . . . . . . . . . . . . . 25
Calibration interval . . . . . . . . . . . . . . . . . . . 27
Calibration points pH . . . . . . . . . . . . . . . . . 24
Connect the plug-in power supply unit . . . . 16
D
Dataset . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Drift control . . . . . . . . . . . . . . . . . . . . . . . . . 20
E
Energy saving feature . . . . . . . . . . . . . . . . 17
Error message . . . . . . . . . . . . . . . . . . . . . . 55
F
Firmware update . . . . . . . . . . . . . . . . . . . . 71
I
Initial commissioning . . . . . . . . . . . . . . . . . 15
Interval Calibration . . . . . . . . . . . . . . . . . . . 27
K
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
L
LoBat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
M
Measurement accuracy . . . . . . . . . . . . . . . 27
MultiLab pilot . . . . . . . . . . . . . . . . . . . . . . . 41
Lists
O
Operation location . . . . . . . . . . . . . . . . . . . 17
Operational safety . . . . . . . . . . . . . . . . . . . 12
ORP electrode . . . . . . . . . . . . . . . . . . . . . . 21
ORP voltage . . . . . . . . . . . . . . . . . . . . . . . 21
P
pH buffer sets . . . . . . . . . . . . . . . . . . . . . . 22
Precautions . . . . . . . . . . . . . . . . . . . . . . . . 11
Print . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
R
Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
all meter settings . . . . . . . . . . . . . . . . . 52
Calibration values . . . . . . . . . . . . . . . . 51
Resolution setting . . . . . . . . . . . . . 46, 47, 48
RS232 interface . . . . . . . . . . . . . . . . . . . . . 41
S
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Scope of delivery . . . . . . . . . . . . . . . . . . . . 15
Setting the date . . . . . . . . . . . . . . . . . . 16, 45
Setting the time . . . . . . . . . . . . . . . . . . 16, 45
Single-point calibration . . . . . . . . . . . . . . . 29
Slope pH . . . . . . . . . . . . . . . . . . . . . . . 22, 30
Socket field . . . . . . . . . . . . . . . . . . . . . . . . 10
Stability control . . . . . . . . . . . . . . . . . . . . . 20
Storage interval . . . . . . . . . . . . . . . . . . . . . 33
T
Temperature sensor . . . . . . . . . . . . . . . . . 19
Three-point calibration . . . . . . . . . . . . . . . . 24
Two-point calibration . . . . . . . . . . . . . . . . . 30
Z
Zero point of the pH electrode . . . . . . . 22, 30
ba75554e05 01/2010
69
Lists Lab 860
70
ba75554e05 01/2010
Lab 860
General information
Appendix: Firmware update
With the Update_Labxxx_MxxxP program and a PC you can update the firmware of the Lab 860 to the newest version.
For the update you can connect the meter to a PC via the USB or
RS232 interface.
For the update via the USB interface, the following is required: z a free USB interface (virtual COM port) on your PC z the driver for the USB interface
z the Z875 USB cable (included in the scope of delivery of the
Lab 860).
For the update via the RS232 interface, the following is required: z a free RS232 interface on your PC z the RS232 cable, Z390.
Program installation
Program start
Firmware update
With the installation program,
"Install_Update_Labxxx_MxxxP_Vx_yy_English.exe", install the firmware update program on your PC.
Start the "Update_Labxxx_MxxxP" program from the Windows start menu.
You can change the language via the language menu.
Proceed as follows:
1 Connect the Lab 860 to a USB interface (virtual COM port) of the PC with the aid of the USB interface cable Z875. or
Connect the Lab 860 to a serial interface (COM port) of the PC with the aid of the interface cable Z390.
2 Make sure the Lab 860 is switched on.
3 To start the update process click the OK button.
The program automatically recognizes the used interface.
ba75554e05 01/2010
71
Lab 860
4 To go on, follow the instructions of the program.
During the programming process, a corresponding message and a progress bar (in %) appear.
The programming process takes approx. two minutes.
A terminatory message is displayed after a successful programming process. The firmware update is now completed.
5 Disconnect the meter from the PC.
The instrument is ready for operation.
After switching the meter off and on you can check whether the meter
has taken over the new software version (see page 57).
72
ba75554e05 01/2010
SI Analytics GmbH
Postfach 2443
D-55014 Mainz
Hattenbergstr. 10
D-55122 Mainz
Telefon +49 (0) 61 31/66 5111
Telefax +49 (0) 61 31/66 5001
Email: support@ si-analytics.com
Internet: www.si-analytics.com
advertisement
Key Features
- Rapid and reliable pH measurements
- Stability control function (SC)
- Five-point calibration
- Internal data memory (800 datasets)
- Automatic data storage
- RS232 and USB interfaces
- Power pack and battery operation
