SCHOTT handylab multi 12 User manual

ba75371e03 11/2009
Operating manual
handylab multi 12
AR
M
O
6
7
1
92
7
O
°
C
mg/l
ARng
TP
RCL
STO
CAL
pH/Dissolved Oxygen/Conductivity
Pocket Meter

Cond 330i/340i
2ba75371e03 11/2009
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. Al-
so, we cannot guarantee that there are absolutely no errors in this man-
ual. 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 discov-
ered within the warranty period. The warranty does not cover compo-
nents 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 han-
dling or unauthorized opening of the instrument invalidates any warran-
ty claim.
Copyright ©Mainz, SI Analytics GmbH, 2009
Reproduction in whole - or even in part - is prohibited without the
express written permission of SI Analytics GmbH, Mainz.
Printed in Germany.

handylab multi 12 List of contents
3
handylab multi 12 - List of contents
ba75371e03 11/2009
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 General features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.3 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.4 Jack field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.5 Operating structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.6 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 General safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4.1 Switching on the measuring instrument . . . . . . . . . . . . . . . . . 17
4.2 pH value / ORP voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.2.2 Measuring the pH value . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.3 Measuring the ORP voltage . . . . . . . . . . . . . . . . . . . . 21
4.2.4 pH calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.3 Dissolved oxygen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.3.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.3.2 Measuring the D. O. concentration . . . . . . . . . . . . . . . 28
4.3.3 Measuring the D. O. saturation . . . . . . . . . . . . . . . . . 29
4.3.4 AutoRead AR (Drift control) . . . . . . . . . . . . . . . . . . . . 30
4.3.5 D. O. calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4.3.6 Salt content correction . . . . . . . . . . . . . . . . . . . . . . . . 34
4.4 Conductivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.4.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4.4.2 Measuring the conductivity . . . . . . . . . . . . . . . . . . . . . 37
4.4.3 Measuring the salinity . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.4.4 AutoRead AR (Drift control) . . . . . . . . . . . . . . . . . . . . 38
4.4.5 Determining the cell constant (Calibration in the
control standard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4.5 Calibration intervals (Int 3, Int 4, Int 5) . . . . . . . . . . . . . . . . . . 42
4.6 Saving data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.6.1 Saving manually . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4.6.2 Switching on AutoStore (Int 1) . . . . . . . . . . . . . . . . . . 45
4.6.3 Outputting the data storage . . . . . . . . . . . . . . . . . . . . 47
4.6.4 Clearing the memory . . . . . . . . . . . . . . . . . . . . . . . . . 53

List of contents handylab multi 12
4ba75371e03 11/2009
4.7 Transmitting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.7.1 Data transmission interval (Int 2) . . . . . . . . . . . . . . . . 54
4.7.2 PC/external printer (RS232 interface) . . . . . . . . . . . . . 56
4.7.3 Remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4.8 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
4.9 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
5 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . . . . . 65
5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
5.3 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.1 pH system messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
6.2 Oxi system messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
6.3 Conductivity system messages. . . . . . . . . . . . . . . . . . . . . . . . 70
6.4 General errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
7 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

handylab multi 12 Overview
5
ba75371e03 11/2009
1 Overview
1.1 General features
The compact precision handheld meter handylab multi 12 enables you to
carry out pH measurements, dissolved oxygen (D. O.) measurements and
conductivity measurements quickly and reliably.
The handylab multi 12 handheld meter provides the maximum degree of op-
erating comfort, reliability and measuring certainty for all applications.
The proven MultiCal® and OxiCal®calibration procedures and the proce-
dures to determine/set up the cell constant support you in your work with the
meter. The special AutoRead function enables precise measurements.
1Keypad
2Display
3Jack field
AR
M
O
6
7
1
92
7
O
°
C
mg/l
ARng
TP
RCL
STO
CAL
1
2
3

Overview handylab multi 12
6ba75371e03 11/2009
1.2 Keypad
Key functions
M
CAL
STO
RUN/ENTER
AR
RCL
Select the measured variable <M>:
– pH value / ORP voltage
– D. O. concentration / D. O. saturation
– Conductivity / salinity
Save a measured value
<STO>
Switch measuring instrument on/off
<ON/OFF>
Calibrate the currently set measured variable
<CAL>
Display/transmit measured values
<RCL>
Activate/deactivate the AutoRead function
<AR>
Select the measuring mode, increase values,
scroll
<▲>
Select the measuring mode, decrease values,
scroll
<▼>
Confirm entries, start AutoRead,
output measured values
<RUN ENTER>
M
STO
CAL
RCL
AR
RUN/ENTER

handylab multi 12 Overview
7
ba75371e03 11/2009
1.3 Display
1.4 Jack field
1D. O. probe or conductivity measuring cell
2pH electrode
3pH temperature probe
4Plug-in power supply unit
5RS232 serial interface
ARng
Tref20
AutoCal DIN
Lin
TDS
cm
M
°
F
/
K
%
Time
Baud
Day.Month No.
Ident
Year
8
8.
8
88
8
°
C
%
mg/l
TP
1
mV/pH
UpH SalO
S
Tref25
nLF
AutoCal TEC
RCL
Auto
Store
LoBat
Cal
AR
1/
cm
Sal
mbar
S/
m
cm
Status display
Meas. value display
Function and
temperature display
Sensor symbol
5
13
4
2

Overview handylab multi 12
8ba75371e03 11/2009
1.5 Operating structure
The following overview diagram shows which keys you have to press to se-
lect between the different measuring modes:
Note
When a D. O. probe or a conductivity measuring cell with a temperature
probe is connected, the measuring instrument recognizes the probe or mea-
suring cell and automatically switches to the oxygen measuring mode or con-
ductivity measuring mode last selected. As soon as the probe/measuring cell
is disconnected, the instrument switches to the pH or ORP measuring mode.

handylab multi 12 Overview
9
ba75371e03 11/2009
1.6 Technical data
Dimensions
and weight
Mechanical struc-
ture
Electrical safety
Test certificates
Ambient condi-
tions
pH/ORP measur-
ing ranges
Precision of
pH/ORP (± 1 digit)
pH correction
function
Oxi measuring
ranges
Length [mm] 172
Width [mm] 80
Height [mm] 37
Weight [kg] approx. 0.3
Type of protection IP 66
Protective class III
cETLus, CE
Storage - 25 °C ... + 65 °C
Operation -10 °C ... + 55 °C
Relative atmospheric humidity annual average < 90 %
Measuring range Resolution
pH - 2.00 ... + 19.99 0.01
U [mV] - 1999 ... + 1999 1
T [°C] - 5.0 ... + 105.0 0.1
pH (after calibration) ± 0.01
U [mV] ± 1
T [°C] ± 0.1
Temperature input
Manually [°C] - 20 ... + 130
mg/l %
Measuring range I
Resolution
0 ... 19.99
0.01
0 ... 199.9
0.1

Overview handylab multi 12
10 ba75371e03 11/2009
Precision of
Oxi (± 1 digit)
Correction
functions of Oxi
Measuring ranges
of Conductivity
Precision of
Conductivity (± 1
digit)
Measuring range II
Resolution
0 ... 90.0l
0.1
0 ... 600
1
mg/l %
Concentration ± 0.5 % of measured value
at ambient temperature of 5 °C ... 30 °C
Saturation ± 0.5 % of measured value
when measuring in the range of
± 10 K around the calibration temperature
Temperature
compensation
< 2 % at 0 ... 40 °C
T [°C] ± 0.1
Salinity correction 0 ... 70.0 SAL
Air pressure correction Automatic through built-in pressure sensor
in the range 500 ... 1100 mbar
Measuring range Resolution
ӕ[µS/cm] 0 ... 1999 1
ӕ[mS/cm] 0.00 ... 19.99
0.0 ... 199.9
0 ... 500
0.01
0.1
1
SAL 0.0 ... 70.0 accord-
ing to the IOT table
0.1
T [°C] −5.0 ... + 105.0 0.1
ӕNonlinear compensation :
Precision Temperature of material
under test
± 0.5 % 0 °C ... 35 °C
according to EN 27 888;
± 0.5 % 35 °C ... 50 °C
extended nLF function
SAL Range 0.0 ... 42.0
Accuracy Sample temperature
± 0.1 5 °C ... 25 °C
± 0.2 25 °C ... 30 °C
T [°C] ± 0.1

handylab multi 12 Overview
11
ba75371e03 11/2009
Cell constant,
calibrating
Reference temper-
ature of Conduc-
tivity
Serial interface Automatic switchover if a PC or printer is connected.
Power supply
C [cm-1] 0.450 ... 0.500
Tref Can be set to 20 °C or 25 °C
Type RS232, data output
Baud rate Can be set to 1200, 2400, 4800, 9600 Baud
Data bits 8
Stop bit 2
Parity None
Handshake RTS/CTS + Xon/Xoff
Cable length Max. 15 m
Batteries 4 x 1.5 V alkali-manganese batteries,
Type AA
Operational life approx. 3000 operating hours
Mains 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.

Overview handylab multi 12
12 ba75371e03 11/2009
Applicable
guidelines and
norms
EMC EC guideline 2004/108/EC
EN 61326-1
EN 61000-3-2
EN 61000-3-3
FCC Class A
Instrument safety EC guideline 2006/95/EC
EN 61010-1
ANSI/UL 61010-1
CAN/CSA-C22.2 No. 61010-1
Climatic class VDI/VDE 3540
Type of protection EN 60529
FCC Class A Equipment Statement
Note: This equipment has been tested and found to comply with
the limits for a Class A digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable
protection against harmful interference when the equipment is
operated in a commercial environment. This equipment
generates, uses, and can radiate radio frequency energy and, if
not installed and used in accordance with the instruction manual,
may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause
harmful interference in which case the user will be required to
correct the interference at his own expense.

handylab multi 12 Safety
13
ba75371e03 11/2009
2Safety
This operating manual contains basic instructions that you must follow during
the commissioning, operation and maintenance of the measuring instrument.
Consequently, all responsible personnel must read this operating manual
carefully before working with the measuring system. The operating manual
must always be available within the vicinity of the measuring system.
Target group The measuring instrument was developed for work in the field and in the lab-
oratory.
Thus, we assume that, as a result of their professional training and experi-
ence, the operators will know the necessary safety precautions to take when
handling chemicals.
Safety instructions The individual chapters of this operating manual use the following safety in-
struction to indicate various types of danger:
Warning
indicates instructions that must be followed precisely in order to avoid the
possibility of slight injuries or damage to the instrument or the environment.
Further notes
Note
indicates notes that draw your attention to special features.
Note
indicates cross-references to other documents, e.g. operating manuals.
2.1 Authorized use
The authorized use of the measuring instrument consists exclusively of the:
zpH and ORP measurement
zmeasurement of the oxygen content and
zmeasurement of the conductivity, salinity and temperature
in the field and laboratory.
The technical specifications as given in section 1.6 TECHNICAL DATA must be
observed. Only the operation and running of the measuring instrument ac-
cording to the instructions given in this operating manual is authorized. Any
other use is considered to be unauthorized.

Safety handylab multi 12
14 ba75371e03 11/2009
2.2 General safety instructions
This instrument is built and inspected according to the relevant guidelines
and norms for electronic measuring instruments (see section 1.6 TECHNICAL
DATA).
It left the factory in a safe and secure technical condition.
Function and oper-
ating safety
The smooth functioning and operational safety of the measuring instrument
can only be guaranteed if the generally applicable safety measures and the
specific safety instructions in this operating manual are followed during oper-
ation.
The smooth functioning and operational safety of the measuring instrument
can only be guaranteed under the environmental conditions that are in spec-
ified in section 1.6 TECHNICAL DATA.
If the instrument was transported from a cold environment to a warm environ-
ment, the formation of condensate can lead to the faulty functioning of the in-
strument. In this event, wait until the temperature of the instrument reaches
room temperature before putting the instrument back into operation.
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 measuring instrument:
zhas been damaged in transport
zhas been stored under adverse conditions for a lengthy period of time
zis visibly damaged
zno 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 the measuring instrument must ensure that the following
laws and guidelines are observed when using dangerous substances:
zEEC directives for protective labor legislation
zNational protective labor legislation
zSafety regulations
zSafety datasheets of the chemical manufacturers.

handylab multi 12 Commissioning
15
ba75371e03 11/2009
3 Commissioning
3.1 Scope of delivery
zhandylab multi 12 handheld meter
zOperating manual and short operating manual
z4 batteries, 1.5 V Mignon type AA (in the instrument)
3.2 Initial commissioning
Perform the following activities:
zSet the date and time
zConnect the plug-in power supply (optional)
Setting the date
and time 1Press the <M> key and hold it down.
2 Press the <ON/OFF> key.
The display test appears briefly on the display.
3Press the <RUN/ENTER> key repeatedly until the date ap-
pears on the display.
4 Set the date of the current day with <▲> <▼>.
5Confirm with <RUN/ENTER>.
The date (month) flashes in the display.
6 Set the current month with <▲> <▼>.
7Confirm with <RUN/ENTER>.
The year appears on the display.
8 Set the current year with <▲> <▼>.
9Confirm with <RUN/ENTER>.
The hours flash on the display.
10 Set the current time with <▲> <▼>.
11 Confirm with <RUN/ENTER>.
The minutes flash on the display.
12 Set the current time with <▲> <▼>.
13 Confirm with <RUN/ENTER>.
The instrument switches to a measuring mode.

Commissioning handylab multi 12
16 ba75371e03 11/2009
Connecting the
plug-in power sup-
ply
You can either operate the measuring instrument with batteries or with the
plug-in power supply. The plug-in power supply supplies the measuring in-
strument with low voltage (12 VDC). This saves the batteries.
Warning
The line voltage at the operating site must lie within the input voltage range
of the original plug-in power supply (see section 1.6 TECHNICAL DATA).
Warning
Use original plug-in power supplies only (see
section 1.6 TECHNICAL DATA).
1Plug the jack (1) into the socket (2) of the measuring instru-
ment.
2 Connect the original SI Analytics plug-in power supply (3) to an
easily accessible mains socket.
2
1
3

handylab multi 12 Operation
17
ba75371e03 11/2009
4 Operation
4.1 Switching on the measuring instrument
Measuring mode
when switching on
Note
The measuring instrument has an energy saving feature to avoid unneces-
sary battery depletion. The energy saving feature switches the measuring in-
strument off if no key has been pressed for an hour.
The energy saving feature is not active
zif the power is supplied by the plug-in power supply,
zif the AutoStore function is active,
zif the communication cable and a PC with a running communication pro-
gram are connected,
zif the printer cable is connected (for external printers).
AutoRange
measurement
range selection
There are several measuring ranges available for both oxygen and conduc-
tivity measurements. As a rule, the measuring instrument is in the measuring
range with the highest possible resolution. If a measuring range is exceeded,
AutoRange causes the measuring instrument to change automatically to the
next higher measuring range.
The AutoRange function is always active with oxygen and conductivity mea-
surements and cannot be switched off.
Note
The measuring ranges for oxygen and conductivity measurements can be
found in section 1.6 TECHNICAL DATA.
1Press the <ON/OFF> key.
The display test appears briefly on the display.
After this, the measuring instrument automatically switches to
the measuring mode.
Connected sensor Measuring mode
No sensor or pH/ORP
electrode
pH or ORP measurement (depending on
the last selected setting)
D. O. probe or conductivity
measuring cell
Last selected measuring mode
2 sensors of any type Last selected measuring mode

Operation handylab multi 12
18 ba75371e03 11/2009
4.2 pH value / ORP voltage
4.2.1 General information
Preparatory
activities
Perform the following preparatory activities when you want to measure:
Note
Incorrect calibration of pH electrodes leads to incorrect measured values.
Calibrate regularly before measuring. You can only connect electrodes of the
NTC30 type or without temperature probe.
Warning
When connecting an earthed PC/printer, measurements cannot be per-
formed in earthed media as incorrect values would result. The RS232 inter-
face is not galvanically isolated.
1Connect the pH electrode to the measuring instrument.
If necessary, press the <M> key repeatedly until the status dis-
play pH (pH measurement) or U(measurement of the ORP
voltage) appears.
2 Adjust the temperature of the buffer solutions or test solutions,
or measure the current temperature, if you measure without a
temperature probe.
3Calibrate or check the measuring instrument with the elec-
trode.
4 Using <▲> <▼>, toggle between the pH or mV measuring
modes.

handylab multi 12 Operation
19
ba75371e03 11/2009
Temperature
measurement in
pH measurements
You can perform pH measurements with or without a temperature probe as
well as with the temperature probe of an oxygen sensor or a conductivity
measuring cell. The measuring instrument recognizes which sensors are
connected and switches automatically to the correct mode for the tempera-
ture measurement.
The following cases are distinguishable.
* If you do not wish that, you can:
– either disconnect the 2nd sensor and use the manual temperature input
or
– use an electrode with a temperature probe.
If a temperature probe is connected, it is indicated on the display by TP.
Note
When calibrating without a temperature probe (no TP display indicator dis-
played), enter the current temperature of the respective buffer solution man-
ually using the <▲> <▼>keys while keeping the <RUN/ENTER> key
depressed.
Temperature probe Display Mode
pH Cond or
Oxi
yes - TP Automatic with
pH temperature probe
yes yes TP
- - Manual
-yesTP
flashes
The temperature value of the
second probe (Cond or Oxi) in
the same sample is taken
over for the pH measurement*

Operation handylab multi 12
20 ba75371e03 11/2009
4.2.2 Measuring the pH value
AutoRead AR
(Drift control)
The AutoRead function (drift control) checks the stability of the measurement
signal. The stability has a considerable impact on the reproducibility of the
measured values.
For identical measurement conditions, the following criteria apply:
1Perform the preparatory activities according to section 4.2.1.
2 Immerse the pH electrode in the test sample.
3Press the <▲> <▼>keys until pH appears in the status display.
The pH value appears on the display.
4When measuring without a connected temperature probe:
Options:
zDetermine the current temperature using a thermometer
and, while keeping the <RUN/ENTER> key depressed, en-
ter this temperature value with <▲> <▼>.
zTP display indicator not displayed, socket for the second
probe is free:
Connect the second probe (Oxi or Cond) and immerse it in
the same sample. TP flashes, the temperature is automati-
cally measured using the second probe.
Tref20
Lin Cal
8
1
S
SalOU
%
mg/l
mV/pH
1/
cm
Sal
AutoCal DIN
Tref25
nLF
AutoCal TEC
RCL
Auto
Store
LoBat
ARng AR
Time
Baud
Day.Month No.
Ident
Year
mbar
TDS
cm
M
°
F
/
K
%
S/
m
cm
8
4
2
99
6
°
C
TP
pH
Reproducibility Response time
Better than 0.02 > 30 seconds
1Call up the pH measuring mode with <▲> <▼>.
2 Activate the AutoRead function with <AR>.
The current measured value is frozen (hold function).