The versatile pH meter HandyLab pH 11 and pH 12 are equipped with the measurement parameters pH, mV and °C. The fully automatic one to three point calibration is already programmed into the meter in accordance with DIN or technical buffers and therefore improves the practical working conditions. These pocket-size meters in shock-proof, water-tight casings are ideally suited for field work.

In comparison to the HandyLab pH 11, the HandyLab pH 12 additionally has a data memory, which makes it possible to save measurements manually or automatically using a timer control, and then evaluate them at a later time. Furthermore, this pH meter has a configurable interface with a recognition function (RS 232) so that it can be connected to a computer (bidrectional) or a recorder.

The handylab pH 11 and handylab pH 12 pocket-size pH meters are not only available separately, but can also be purchased in a complete cost-effective set that includes a combination electrode, buffer solutions and measuring beakers in a carrying case. With this set, you can get to work right away.

Technical data
handylab pH 11, handylab pH 12
ph meters handylab pH 11 handylab pH 12
Measuring ranges
pH range -2.000…+19.999 pH -2.000…+19.999 pH
resolution max. 0.001 pH 0.001 pH
accuracy +0.005/±0.01 pH +0.005/±0.01 pH
mV range max. -1999…+1999 mV -1999…+1999 mV
resolution max. 0.1 mV 0.1 mV
accuracy +0.3/±1 mV +0.3/±1 mV
temperature range -5.0…+105.0 °C -5.0…+105.0 °C
resolution 0.1 K 0.1 K
accuracy (with NTC 30) ±0.1 K ±0.1 K
manual adjustment -20…+130 °C -20…+130 °C
drift control can be switched off yes yes
slope matching 85…105 % 85…105 %
zero point matching ± 30 mV ± 30 mV
sensor evaluation via symbol in the display yes yes
input resistance >1012 Ω >1012 Ω
offset current < 1012 A < 1012 A
Calibration
buffer sets DIN (1.68/4.01/6.87/9.18) 1-/2-/3 point 1-/2-/3 point
technical (2.00/4.00/7.00/10.01)* 1-/2-/3 point 1-/2-/3 point
selectable buffers 1-/2 point 1-/2 point
calibration interval control – 1…999 days
saving calibration data in memory – yes
Real time clock integrated with time/date – yes
Data storage
storage by depression of key – 800 data records
time controlled storage in 7 intervals (5 sec. …60 min) – 800 data records
Connections
electrode (socket in accord. with DIN 19 262) yes yes
temperature sensor (NTC 30/Pt 1000, 2 x 4 mm banana plug) yes yes
Interface
for analogue recorder cable Z 394 – 4 poles socket
for RS-232 cable Z 395, bi-directional – 4 poles socket
Ambient temperature
operating temperature -10…+55 °C -10…+55 °C
relative humidity (annual average) < 90 % < 90 %
Power supply
battery operated (type AA) 4 x 1.5 V mignon cells 4 x 1.5 V mignon cells
battery life time (data is saved even if batteries are changed) approx. 5.000 h approx. 5.000 h
power supply (no akku) – optionally
automatic switch-off during battery operation 60 min 60 min
Housing ABS, water-tight keypad ABS, water-tight keypad
dimensions (H x W x D) 172 mm x 80 mm x 37 mm 172 mm x 80 mm x 37 mm
weight approx. 0.3 kg approx. 0.3 kg
Display
LCD multi-function display 60 mm x 45 mm 60 mm x 45 mm
Instrument safety protection class 3, EN 61010-1 A2 3, EN 61010-1 A2
protection type IP 66, EN 60529 IP 66, EN 60529
approvals/marks of conformity cETLus, CE cETLus, CE
instrument warranty 3 years 3 years
*
SCHOTT Instruments
31handylab
Order overview handylab pH meters, conductivity meters and
oxygen meters
pH meters Type no. Order no.
handylab pH 11, individual meter handylab pH 11 28 520 2871
handylab pH11, individual meter with carrying case handylab pH 11/K 28 520 2863
handylab pH 11, case set,
complete, ready to use with pH combination electrode BlueLine 23 pH,
calibration solutions and plastic beakers handylab pH 11/23 pH 28 520 2917
handylab pH 11, case set,
complete, ready to use with pH combination electrode BlueLine 24 pH,
calibration solutions and plastic beakers handylab pH 11/24 pH 28 520 2982
handylab pH 11, case set,
complete, ready to use with pH combination electrode BlueLine 14 pH,
calibration solutions and plastic beakers handylab pH 11/14 pH 28 520 2999
handylab pH 12, individual meter handylab pH 12 28 520 2896
handylab pH12, individual meter with carrying case handylab pH 12/K 28 520 2888
handylab pH 12, case set,
complete, ready to use with pH combination electrode BlueLine 24 pH,
calibration solutions and plastic beakers handylab pH 12/24 pH 28 520 3054
handylab pH 12, case set,
complete, ready to use with pH combination electrode BlueLine 14 pH,
calibration solutions and plastic beakers handylab pH 12/l4 pH 28 520 3062
Conductivity meters
handylab LF 11, individual meter handylab LF 11 28 520 3292
handylab LF11, individual meter with carrying case handylab LF 11/K 28 520 3276
handylab LF11, case set,
complete, ready to use with 4-pole conductivity cell LF 413T,
calibration solutions and plastic beaker handylab LF 11/413 T 28 520 3310
handylab LF 11, case set,
complete, ready to use with 2-pole conductivity cell LF 513 T,
calibration solutions and plastic beaker handylab LF 11/513 T 28 520 3321
handylab LF 11, case set,
complete, ready to use with 4-pole conductivity cell LF 613 T,
calibration solutions and plastic beaker handylab LF 11/613 T 28 520 3346
handylab LF 12, individual meter handylab LF 12 28 520 3362
handylab LF12, individual meter with carrying case handylab LF 12/K 28 520 3354
handylab LF12, case set, complete, ready to use
with 4-pole conductivity cell LF 413T,
calibration solutions and plastic beaker handylab LF 12/413 T 28 520 3330
handylab LF 12, case set,
complete, ready to use with 4-pole conductivity cell LF 613 T,
calibration solutions and plastic beaker handylab LF 12/613 T 28 520 3379
Oxygen meter
handylab OX12, individual meter with carrying case handylab LF 12/K 106 3835
handylab OX 12, case set,
complete, ready to use with oxygen sensor 9009/61,
calibration and maintenance accessories handylab OX12-Set 28 520 2793
38Order overview handylab multi-parameter portable meters
Multi-Parameter meters Type no. Order no.
handylab pH/LF 12, individual meter handylab pH/LF 12 28 520 3465
handylab pH/LF 12, case set,
complete, ready to use with pH combination electrode BlueLine 24-3 pH,
4-pole conductivity cell LF 413-3 T, calibration and maintenance accessories handylab pH/LF 12-Set 28 520 3473
handylab multi 12, individual meter handylab multi 12 28 520 3502
handylab multi 12, case set,
complete, ready to use with pH combination electrode BlueLine 24-3 pH,
4-pole conductivity cell LF 413-3 T, oxygen sensor 9009/63,
calibration and maintenance accessories handylab multi 12-Set 28 520 3519
Accessories
Redox combination electrode with plug head BlueLine 31 Rx 28 512 9311
Plug cable combination
e.g. for BlueLine 31 Rx, 1 m cable, DIN plug LB 1 A 28 512 2653
Electrolyte solution KCl 3 mol/l,
1000 ml DURAN® bottle L 300 28 513 8554
Technical buffer solutions pH 4.00 / 7.00, 2 x 30 ampoules L 4690 28 513 8398
Redox test solution 180, 430, 600 mV Pt/calomel;
220, 470, 640 mV Pt/Ag/AgCl, 3 x 20 ampoule L 4648 28 513 8784
Conductivity test solutions KCl 0.01 / 0.1 / 1 mol/l
(1.41 mS/cm / 12.9 mS/cm / 112 mS/cm), 3 x 6 ampoules LF 995 28 512 6293
Field armouring with holder carrying handle and shoulder strap,
for handylab pH meters Z 384 28 520 4848
Protective armouring with holder and carrying handle,
for handylab pH meters Z 385 28 520 4856
Holder set for protective armouring,
for handylab OX12 meters Z 386 28 520 4864
Rubberized elastic protective armouring with handle support,
for all handylab meters Z 387 28 520 4872
Universal mains power supply unit, 100…240 V
for all handylab 12 models Z 850 28 520 4889
Connecting cable for analogue recorder,
for handylab pH 12, LF 12, OX12 Z 394 28 520 4942
Connecting cable for PC,
for all handylab 12 models (software included) Z 395 28 520 4959

The versatile conductivity meters can be used to measure electrical conductivity, total dissolved solids (TDS), salinity and temperature. These pocket-size meters in shock-proof, water-tight casings are ideally suited for field work.

In comparison the the HandyLab pH 11, the HandyLab pH 12 additionally has a data memory, which makes it possible to save measurements manually or automatically using a timer control, and then evaluate them at a later time. Furthermore, this pH meter has a configurable interface with a recognition function (RS 232) so that it can be connected to a computer (bidrectional) or a recorder.

The LF 11 and LF 12 conductivity meters are also available as part of a cost-effective set in a carrying case, which includes a combination electrode, calibration solutions and a measuring beaker. With this set, you can get to work right away.

Technical data

handylab LF 11, handylab LF 12
Parameter handylab LF 11 handylab LF 12
Measuring ranges
conductivity in 5 ranges or AutoRange 0.0 μS/cm…500 mS/cm 0.0 μS/cm…500 mS/cm
at k = 0.1 and k = 0.01 0.00 μS/cm…19.99 μS/cm 0.00 μS/cm…19.99 μS/cm
at k = 0.01 0.000 μS/cm…1.999 μS/cm 0.000 μS/cm…1.999 μS/cm
specifi c resistance 0.000…1999 MΩ·cm 0.000…1999 MΩ·cm
salinity acc. to IOT table 0.0…70.0 0.0…70.0
TDS factor adjustable 0.40…1.00 0…1999 mg/I 0…1999 mg/I
temperature automatic, 3 modes selectable -5.0…+105.0 °C -5.0…+105.0 °C
resolution 0.1 K 0.1 K
manual adjustment -5…+100 °C -5…+100 °C
Cell constants adjustable 0.01; 0.090…0.110; 0.01; 0.090…0.110;
0.250…2.500 0.250…2.500
calibrate 0.450…0.500 ; 0.800…1.200 0.450…0.500 ; 0.800…1.200
calibration interval control – 1…999 days
Accuracy
conductivity ± 0.5 % of measured value ± 0.5 % of measured value
salinity ± 0.2 ± 0.2
TDS ± 2 % ± 2 %
temperature (NTC 30) ±0.1 K ±0.1 K
Reference temperature selectable 20 °C or 25 °C 20 °C or 25 °C
temperature compensation mode
non-linear function natural water acc. to EN 27 888 (DIN 38 404) yes yes
linear compensation 0.001…3.000 %/K 0.001…3.000 %/K
no compensation yes yes
real time clock integrated with time/date – yes
Data storage
storage by depression of key – 800 data records
time controlled storage in 7 intervals (5 sec … 60 min) – 800 data records
Connections
for 2 and 4 pole cells
with/without temperature sensor (NTC 30) 8 poles socket 8 poles socket
Interface
for analogue recorder cable Z 394 – 4 poles socket
for RS-232 cable Z 395, bi-directional – 4 poles socket
Ambient temperature
operating temperature -10…+55 °C -10…+55 °C
relative humidity (annual average) < 90 % < 90 %
Power supply
battery operated 4 x 1.5 V mignon cells 4 x 1.5 V mignon cells
battery life time (data remain when changing batteries) approx. 2,500 h approx. 2,500 h
power supply (no akku) – optionally
automatic switch-off at operation 60 min 60 min
Housing ABS, water-tight key pad ABS, water-tight key pad
dimensions (H x W x D) 172 mm x 80 mm x 37 mm 172 mm x 80 mm x 37 mm
weight approx. 0.3 kg approx. 0.3 kg
Display
LCD multi-function display 60 mm x 45 mm 60 mm x 45 mm
Instrument safety protection class 3, EN 61010-1 A2 3, EN 61010-1 A2
protection type IP 66, EN 60529 IP 66, EN 60529
approvals/marks of conformity cETLus, CE cETLus, CE
instrument warranty 3 years 3 years
33handylab
Order overview handylab pH meters, conductivity meters and
oxygen meters
pH meters Type no. Order no.
handylab pH 11, individual meter handylab pH 11 28 520 2871
handylab pH11, individual meter with carrying case handylab pH 11/K 28 520 2863
handylab pH 11, case set,
complete, ready to use with pH combination electrode BlueLine 23 pH,
calibration solutions and plastic beakers handylab pH 11/23 pH 28 520 2917
handylab pH 11, case set,
complete, ready to use with pH combination electrode BlueLine 24 pH,
calibration solutions and plastic beakers handylab pH 11/24 pH 28 520 2982
handylab pH 11, case set,
complete, ready to use with pH combination electrode BlueLine 14 pH,
calibration solutions and plastic beakers handylab pH 11/14 pH 28 520 2999
handylab pH 12, individual meter handylab pH 12 28 520 2896
handylab pH12, individual meter with carrying case handylab pH 12/K 28 520 2888
handylab pH 12, case set,
complete, ready to use with pH combination electrode BlueLine 24 pH,
calibration solutions and plastic beakers handylab pH 12/24 pH 28 520 3054
handylab pH 12, case set,
complete, ready to use with pH combination electrode BlueLine 14 pH,
calibration solutions and plastic beakers handylab pH 12/l4 pH 28 520 3062
Conductivity meters
handylab LF 11, individual meter handylab LF 11 28 520 3292
handylab LF11, individual meter with carrying case handylab LF 11/K 28 520 3276
handylab LF11, case set,
complete, ready to use with 4-pole conductivity cell LF 413T,
calibration solutions and plastic beaker handylab LF 11/413 T 28 520 3310
handylab LF 11, case set,
complete, ready to use with 2-pole conductivity cell LF 513 T,
calibration solutions and plastic beaker handylab LF 11/513 T 28 520 3321
handylab LF 11, case set,
complete, ready to use with 4-pole conductivity cell LF 613 T,
calibration solutions and plastic beaker handylab LF 11/613 T 28 520 3346
handylab LF 12, individual meter handylab LF 12 28 520 3362
handylab LF12, individual meter with carrying case handylab LF 12/K 28 520 3354
handylab LF12, case set, complete, ready to use
with 4-pole conductivity cell LF 413T,
calibration solutions and plastic beaker handylab LF 12/413 T 28 520 3330
handylab LF 12, case set,
complete, ready to use with 4-pole conductivity cell LF 613 T,
calibration solutions and plastic beaker handylab LF 12/613 T 28 520 3379
Oxygen meter
handylab OX12, individual meter with carrying case handylab LF 12/K 106 3835
handylab OX 12, case set,
complete, ready to use with oxygen sensor 9009/61,
calibration and maintenance accessories handylab OX12-Set 28 520 2793
38Order overview handylab multi-parameter portable meters
Multi-Parameter meters Type no. Order no.
handylab pH/LF 12, individual meter handylab pH/LF 12 28 520 3465
handylab pH/LF 12, case set,
complete, ready to use with pH combination electrode BlueLine 24-3 pH,
4-pole conductivity cell LF 413-3 T, calibration and maintenance accessories handylab pH/LF 12-Set 28 520 3473
handylab multi 12, individual meter handylab multi 12 28 520 3502
handylab multi 12, case set,
complete, ready to use with pH combination electrode BlueLine 24-3 pH,
4-pole conductivity cell LF 413-3 T, oxygen sensor 9009/63,
calibration and maintenance accessories handylab multi 12-Set 28 520 3519
Accessories
Redox combination electrode with plug head BlueLine 31 Rx 28 512 9311
Plug cable combination
e.g. for BlueLine 31 Rx, 1 m cable, DIN plug LB 1 A 28 512 2653
Electrolyte solution KCl 3 mol/l,
1000 ml DURAN® bottle L 300 28 513 8554
Technical buffer solutions pH 4.00 / 7.00, 2 x 30 ampoules L 4690 28 513 8398
Redox test solution 180, 430, 600 mV Pt/calomel;
220, 470, 640 mV Pt/Ag/AgCl, 3 x 20 ampoule L 4648 28 513 8784
Conductivity test solutions KCl 0.01 / 0.1 / 1 mol/l
(1.41 mS/cm / 12.9 mS/cm / 112 mS/cm), 3 x 6 ampoules LF 995 28 512 6293
Field armouring with holder carrying handle and shoulder strap,
for handylab pH meters Z 384 28 520 4848
Protective armouring with holder and carrying handle,
for handylab pH meters Z 385 28 520 4856
Holder set for protective armouring,
for handylab OX12 meters Z 386 28 520 4864
Rubberized elastic protective armouring with handle support,
for all handylab meters Z 387 28 520 4872
Universal mains power supply unit, 100…240 V
for all handylab 12 models Z 850 28 520 4889
Connecting cable for analogue recorder,
for handylab pH 12, LF 12, OX12 Z 394 28 520 4942
Connecting cable for PC,
for all handylab 12 models (software included) Z 395 28 520 4959