Operating Instructions pH Meter F20, FP20

Operating Instructions pH Meter F20, FP20
Operating Instructions
FiveEasy™ FiveEasy Plus™
pH Meter F20, FP20
Table of Contents
1 Introduction
5
2 Safety Measures
2.1
2.2
Definition of signal warnings and symbols
Product specific safety notes
3 Design and Function
3.1
3.2
3.3
3.4
3.5
3.6
3.7
3.8
Overview
Connections on the instrument
Keypad F20
Keypad FP20
Display and icons F20
Display and icons FP20
Setup menu navigation
Measurement modes
6
6
6
9
9
9
10
11
12
13
14
14
4 Putting into Operation
4.1
Scope of delivery
4.2
Sensor holder installation
4.3
Connecting the power adapter
4.4
Connecting sensors
4.5
Switching the instrument on and off
15
15
15
15
16
16
5 Operation of the Instrument
5.1
General settings
5.1.1
Endpoint Formats
5.1.2
Temperature capture
5.1.3
Predefined buffer groups
5.1.4
Temperature unit (FP20 only)
5.2
Performing a calibration
5.2.1
Performing a 1-point calibration
5.2.2
Performing a 2-point calibration
5.2.3
Performing a 3-point calibration
5.2.4
Performing a 4- or 5-point calibration
5.3
Performing a measurement
5.3.1
Measurement mode
5.3.2
Performing a pH measurement
5.3.3
Performing a mV measurement
5.4
Using the memory (FP20 only)
5.4.1
Storing a measurement result
5.4.2
Recalling from memory
5.4.3
Clearing the memory
5.5
Print out (FP20 only)
5.5.1
Connection and configuration
5.5.2
Print-out following measurement / calibration
5.5.3
Printing from memory
5.6
Data export to PC (FP20 only)
5.7
Self-diagnosis
5.8
Factory reset
18
18
18
18
18
18
20
20
20
20
21
22
22
22
22
23
23
23
23
23
23
23
23
23
24
24
6 Maintenance
6.1
6.2
6.3
6.4
6.5
25
25
25
26
26
26
FiveEasy™ FiveEasy Plus™
Cleaning the housing
Electrode maintenance
Error messages
Error limits
Disposal
Table of Contents
3
4
7 Product Portfolio
27
8 Accessories
28
9 Technical Data F20
30
10 Technical Data FP20
32
11 Appendix
34
Table of Contents
FiveEasy™ FiveEasy Plus™
1 Introduction
Thank you for purchasing this high quality METTLER TOLEDO laboratory meter. With the new FiveEasy™
and FiveEasyPlus™ bench line instruments for pH and conductivity measurement, we wish to simplify your
measuring process and your workflows.
FiveEasy™ and FiveEasy Plus™ are much more than just a series of bench meters with an excellent price/
performance ratio. The meters offer a number of user-friendly features, including:
• Optimized ease of use
simple menus for quick and easy operation
• Small footprint
while boasting a large display, the instrument requires little benchtop space
• Flexibility
a number of useful accessories are available to further simplify your lab (e.g. printers, sensors, buffers
and solutions)
FiveEasy™ FiveEasy Plus™
Introduction
5
2 Safety Measures
2.1 Definition of signal warnings and symbols
Safety notes are marked with signal words and warning symbols. These show safety issues and warnings.
Ignoring the safety notes may lead to personal injury, damage to the instrument, malfunctions and false
results.
Signal words
WARNING
for a hazardous situation with medium risk, possibly resulting in severe
injuries or death if not avoided.
CAUTION
for a hazardous situation with low risk, resulting in damage to the device
or the property or in loss of data, or minor or medium injuries if not
avoided.
Attention
(no symbol)
for important information about the product.
Note
(no symbol)
for useful information about the product.
Warning symbols
General hazard
Toxic substance
Inflammable or explosive substance
2.2 Product specific safety notes
Your instrument represents state-of-the-art technology and complies with all recognized safety rules,
however, certain hazards may arise in extraneous circumstances. Do not open the housing of the
instrument; it does not contain any parts that can be maintained, repaired or replaced by the user. If you
experience problems with your instrument, contact your authorized METTLER TOLEDO dealer or service
representative.
Intended use
This instrument is designed for a wide range of applications in various areas and is
suitable for measuring pH.
The use therefore requires knowledge and experience in working with toxic and caustic
substances.
The manufacturer shall not be held liable for any damage resulting from incorrect usage
divergent to the operating instructions. Furthermore, the manufacturer`s technical specifications and limits must be adhered to at all times and in no way exceeded.
Location
The instrument has been developed for outdoor operation and may not be used in
explosive environments.
Use the instrument in a location which is suitable for the operation, protected from direct
sunlight and corrosive gases. Avoid powerful vibrations, excessive temperature
fluctuations and temperatures below 0 °C and above 40 °C.
6
Safety Measures
FiveEasy™ FiveEasy Plus™
Protective Clothing
It is advisable to wear protective clothing in the laboratory when working with hazardous or toxic
substances.
A lab coat should be worn.
Suitable eye protection such as goggles should be worn.
Use appropriate gloves when handling chemicals or hazardous substances, checking their
integrity before use.
Safety notes
WARNING
Chemicals
All relevant safety measures are to be observed when working with chemicals.
a) Set up the instrument in a well-ventilated location.
b) Any spills should be wiped off immediately.
c) When using chemicals and solvents, comply with the instructions of the producer and
the general lab safety rules.
WARNING
Flammable solvents
All relevant safety measures must be observed when working with flammable solvents
and chemicals.
a) Keep all sources of flame away from the workplace.
b) When using chemicals and solvents, comply with the instructions of the producer and
the general lab safety rules.
FiveEasy™ FiveEasy Plus™
Safety Measures
7
FCC Rules
This device complies with Part 15 of the FCC Rules and Radio Interference Requirements of the Canadian
Department of Communications. Operation is subject to the following conditions: (1) this device may not
cause harmful interference, and (2) this device must accept any interference received, including interference
that may cause undesired operation.
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.
8
Safety Measures
FiveEasy™ FiveEasy Plus™
3 Design and Function
3.1 Overview
9
8
6
Release button height adjustment
2
Left handed mounting position for sensor
holder
Keypad
7
Rod stand (height adjustment)
3
Display
8
Connection board
4
Housing
9
DC connection
5
Sensor holder
10
Storage compartment for electrode stand
1
3.2 Connections on the instrument
FP20
F20
5
6
7
1
Socket for pH sensor (BNC)
5
RS232 interface to printer
2
Socket for temperature sensor (RCA - Cinch)
6
USB-B interface to PC
3
Socket for reference electrode
7
DC socket for power supply
4
Socket for analog mV signal output
FiveEasy™ FiveEasy Plus™
Design and Function
9
3.3 Keypad F20
Key
10
Naming
Press and release
(measurement
mode)
Press and hold for
1 second
(measurement
mode)
1
On / Off / Exit
• Switch meter on
2
Setup
• Open setup
3
Read / Endpoint
format
• Start or endpoint
measurement
• Set auto endpoint • Confirm setting
on / off
4
Mode
• Change
measurement
mode (pH / mV)
• Decrease value
during setting
5
Calibration
• Start calibration
Design and Function
• Switch meter off
Press and release
(other mode)
• Back to
measurement
screen
• Increase value
during setting
• Recall calibration
data
FiveEasy™ FiveEasy Plus™
3.4 Keypad FP20
STO
RCL
Key
Naming
Press and release
(measurement
mode)
Press and hold for
1 second
(measurement
mode)
Press and release
(other mode)
1
On / Off / Exit
• Switch meter on
• Switch meter off
• Back to
measurement
screen
2
Store / Recall
• Store current
reading to
memory
• Recall memory
data
• Increase value
during setting
• Scroll up through
the memory
3
Read / Endpoint
format
• Start or endpoint
measurement
• Set auto endpoint • Confirm setting
on / off
4
Mode / Setup
• Change
measurement
mode (pH / mV)
• Enter set up mode • Decrease value
during setting
• Scroll down
through the
memory
5
Calibration
• Start calibration
• Recall calibration
data
FiveEasy™ FiveEasy Plus™
Design and Function
11
3.5 Display and icons F20
When turning on the instrument, the startup screen appears for 3 seconds. The startup screen shows all
icons which can appear on the display. In the following table you find a short description of these icons.
Startup screen
Icon
Description
1
---
pH measurement value
2
/
Buffer/Standard setting
3
12
Endpoint format:
Automatic
Manual
Calibration type:
Lin. Linear
4
Cal / Lin.
5
Offset
Offset reading
6
Slope
Slope is one of two quality indicators for the attached sensor and is
determined during calibration.
7
mV / pH
8
---
9
MTC / ATC
Currently used measurement unit
Temperature information
MTC (Manual temperature capture)
ATC (Automatic temperature capture)
10
Error code
11
Setup mode
12
Measurement mode
13
Calibration mode:
Indicates calibration mode and appears whenever you are performing a
calibration or reviewing calibration data.
14
Electrode performance
Slope: 95-105% / Offset: ± 0-20 mV (Electrode in good condition)
Slope: 90-94% / Offset: ± 20-35 mV (Electrode needs cleaning)
Slope: 85-89% / Offset:≥ 35 mV or ≤ - 35 mV (Electrode is faulty)
Design and Function
FiveEasy™ FiveEasy Plus™
3.6 Display and icons FP20
When turning on the instrument, the startup screen appears for 3 seconds. The startup screen shows all
icons which can appear on the display. In the following table you find a short description of these icons.
Startup screen
Icon
Description
1
---
pH measurement value
2
/
Endpoint format:
Automatic
Manual
Buffer setting
3
Calibration type:
Lin. Linear
Seg. Segmented
4
Cal / Lin. / Seg.
5
M --
6
Offset
Offset reading is determined during calibration
7
Slope
Slope is determined during calibration. Slope and offset are the two
indicators to determine the quality of the attached sensor.
Refer to the InLab® sensor's quality certificate for more information.
8
mV / pH
9
---
10
MTC / ATC
Memory information
Currently used measurement unit
Temperature information
MTC (Manual temperature capture)
ATC (Automatic temperature capture)
11
Error messages
12
USB connection to PC
13
Data transfer activated
14
Setup mode
15
Measurement mode
FiveEasy™ FiveEasy Plus™
Design and Function
13
Icon
Description
16
Calibration mode:
Indicates calibration mode and appears whenever you are performing a
calibration or reviewing calibration data.
17
Electrode performance
Slope: 95-105% / Offset: ± 0-20 mV (Electrode in good condition)
Slope: 90-94% / Offset: ± 20-35 mV (Electrode needs cleaning)
Slope: 85-89% / Offset:≥ 35 mV or ≤ - 35 mV (Electrode is faulty)
3.7 Setup menu navigation
For general navigation in the setup menu read the following information:
• Press and hold Setup to enter the setup menu.
• Press Exit to exit the setup menu.
• Use
and
do increase or decrease values.
• Press Read to confirm a change.
The following parameters can be changed in the order as shown.
Parameter
MTC
°C, °F
Description
Range
Manual temperature setting
0.0…100.0 °C /
32.0…212 °F
Buffer standard setting
B1, B2, B3, B4
Temperature unit
°C, °F
3.8 Measurement modes
With the meter it is possible to measure the following parameters of a sample:
• pH
• mV
To change the unit, press
on the measurement screen.
14
Design and Function
FiveEasy™ FiveEasy Plus™
4 Putting into Operation
4.1 Scope of delivery
FiveEasy™ F20 instrument
FiveEasy Plus™ FP20 instrument
for pH/mV measurement
Power adapter
CD-ROM including operating instructions
Exit
Cal
Read
A
STO
RCL
Mode
Setup
FiveGo
Operating
Instructions
4.2 Sensor holder installation
4.3 Connecting the power adapter
The instrument is supplied with an universal AC adapter. The AC adapter is suitable for all line voltages in
the range of 100 to 240 V, 50/60 Hz.
Attention
•
•
•
•
Before operating, check cables for damage!
Ensure the cables are tidily arranged so that they cannot be damaged or interfere with the installation!
Take care that the AC adapter does not come into contact with liquids!
The power plug must be accessible at all times!
FiveEasy™ FiveEasy Plus™
Putting into Operation
15
1 Insert the correct connector plug into the AC adapter until it is completely inserted.
PUSH
2 Connect the cable of the AC adapter with the DC socket of the instrument.
3 Plug the AC adapter into the wall socket.
Note
To remove the connector plug, push the release button and withdraw the connector plug.
4.4 Connecting sensors
8
4.5 Switching the instrument on and off
1 Press and release to switch on the instrument.
ð All segmented digital numbers and icons are displayed for 2 seconds. After that the installed
software version appears (e.g. 1.00) and the instrument is ready for use.
16
Putting into Operation
FiveEasy™ FiveEasy Plus™
2 Press
FiveEasy™ FiveEasy Plus™
for 3 seconds and release to switch off the instrument.
Putting into Operation
17
5 Operation of the Instrument
5.1 General settings
5.1.1 Endpoint Formats
The FiveEasyTM and FiveEasy PlusTM offers two different endpoint formats, automatic and manual. To switch
between the automatic and manual endpoint modes, press and hold Read.
Automatic endpoint
With the automatic endpoint, the measurement stops automatically as soon as the input signal is stable.
This ensures an easy, quick and precise measurement.
Manual endpoint
Unlike the automatic endpoint, user interaction is required to stop the measurement reading in manual
mode. To manually endpoint a measurement, press Read.
5.1.2 Temperature capture
Automatic temperature capture (ATC)
For better accuracy, we recommend the use of either a sensor with a built-in or a separate temperature
probe. If a temperature probe is recognized by the meter, ATC and the sample temperature are displayed.
Note
The meter accepts NTC 30 kΩ temperature sensors.
Manual temperature capture (MTC)
If the meter does not detect a temperature probe, it automatically switches to the manual temperature mode
and MTC appears. The entered MTC temperature is used for temperature compensation.
1 To set the MTC temperature, press and hold Setup.
ð The temperature value is blinking. The default setting is 25 °C.
2 Select the temperature value by using
and
.
3 Press Read to confirm your settings.
4 Continue with buffer group selection or press Exit to return to measurement screen.
5.1.3 Predefined buffer groups
The buffer group is selected in the setup menu.
B1
1.68
4.01
7.00
10.01
(at 25 °C)
B2
2.00
4.01
7.00
9.21
11.00
(at 25 °C)
B3
1.68
4.00
6.86
9.18
12.46
(at 25 °C)
B4
1.68
4.01
6.86
9.18
(at 25 °C)
§ After confirmation of the MTC temperature, the current buffer group is blinking.
1 Select the buffer group by using
and
.
2 Press Read to confirm.
3 Continue with temperature unit setting or press Exit to return to measurement screen.
Note
It is not needed to calibrate a pH electrode with all pH values of a buffer group. Select the buffer group
which contains the ones you are using for calibration. During calibration, the order in which the buffers are
used is not relevant. The instrument has an auto buffer recognition function. This allows to calibrate in any
order.
5.1.4 Temperature unit (FP20 only)
The temperature unit is changed in the setup menu.
18
Operation of the Instrument
FiveEasy™ FiveEasy Plus™
§ After selection and confirmation of the predefined buffer group the temperature unit starts blinking.
1 Select the temperature unit ( °C or °F) using
and
.
2 Press Read to confirm and get back to the measurement screen.
FiveEasy™ FiveEasy Plus™
Operation of the Instrument
19
5.2 Performing a calibration
For better accuracy, we recommend the use of either a sensor with a built-in or a separate temperature
probe. If you use the MTC mode, you should enter the correct temperature value and keep all buffer and
sample solutions at the set temperature. To ensure the most accurate pH reading, you should perform a
calibration regularly.
The FiveEasyTM pH meter allows you to run 1-,2- and 3-point calibrations and the FiveEasy PlusTM pH meter
allows you to run 1-,2-, 3-, 4- and 5-point calibrations. If you select your calibration buffer group from one
of the four predefined groups stored in the meter, the buffers are automatically recognized and displayed
during calibration (auto buffer recognition).
5.2.1 Performing a 1-point calibration
§ An electrode is connected to the instrument.
1 Place the electrode in a calibration buffer.
2 Press Cal.
ð
and
appear on the display.
During measurement the pH value based on the previous calibration is shown. Depending on the
endpoint format, the instrument stops measuring when the signal is stable (auto endpoint) or after
pressing Read (manual endpoint).
ð At endpoint,
disappears from the display and the pH value of the recognized buffer at measured
temperature is shown.
3 If you do not want to proceed with the 2-point calibration, press Read to finish the 1-point calibration.
– or –
If you want to reject the 1-point calibration press Exit.
– or –
Proceed with next calibration point and go to Performing a 2-point calibration [} 20].
Note
With the 1-point calibration only the offset is adjusted. If the sensor was previously calibrated with multipoint calibration the previously stored slope will remain. Otherwise the theoretical slope (100 %) will be
used.
5.2.2 Performing a 2-point calibration
§ Perform the first calibration point as described in the section Performing a 1-point calibration [} 20].
1 Rinse the electrode with deionized water.
2 Place the electrode in the next calibration buffer and press Cal..
ð
and
appear on the display.
During measurement the pH value based on the previous calibration is shown. Depending on the
endpoint format, the instrument stops measuring when the signal is stable (auto endpoint) or after
pressing Read (manual endpoint). Slope and offset are then calculated.
ð At endpoint,
disappears from the display and the pH value of the recognized buffer at measured
temperature is shown.
3 If you do not want to proceed with a 3-point calibration press Read to finish and save the 2-point
calibration.
-orif you want to reject the 2-point calibration, press Exit.
-orif you want to proceed with the next calibration point go to Performing a 3-point calibration [} 20].
Note
With the 2-point calibration, both slope and offset are updated and shown on the right side of the display
5.2.3 Performing a 3-point calibration
§ Perform the same steps as described in Performing a 2-point calibration [} 20].
-
20
Repeat steps 1, 2 and 3 of Performing a 2-point calibration [} 20] for the third calibration point.
Operation of the Instrument
FiveEasy™ FiveEasy Plus™
Note
With the 3-point calibration, both slope and offset are updated and shown on the right side of the display.
The slope and offset values are calculated using least square method through the three calibration points
(linear calibration). The FP20 offers the option of segmented calibration, where slope and offset are
calculated individually for each pair of adjacent buffers. Segmented calibration is only meaningful for
calibration with 3 or more points.
5.2.4 Performing a 4- or 5-point calibration
§ Perform the same steps as described in the section Performing a 2-point calibration [} 20].
-
Repeat steps 1, 2 and 3 of the section Performing a 2-point calibration [} 20] for the fourth or fifth
calibration point.
Note
With the 4-point and 5-point calibration, both slope and offset are updated and shown on the right side of
the display.
FiveEasy™ FiveEasy Plus™
Operation of the Instrument
21
5.3 Performing a measurement
5.3.1 Measurement mode
Both FiveEasyTM and FiveEasy PlusTMpH/mV meter offer two different reading modes: pH and mV.
-
Press the Mode button to switch between pH and mV mode.
5.3.2 Performing a pH measurement
§ An electrode is connected to the instrument.
§ Make sure that the pH reading mode is selected.
1 Place the electrode in the sample and press Read to start the measurement.
ð The decimal point blinks.
ð The display shows the pH of the sample.
ð If the automatic endpoint is selected, and the signal has stabilized, the display freezes,
appears
and the decimal point stops blinking. In case the Read button was pressed before the automatic
endpoint, the display freezes and
appears.
2 If the manual endpoint is chosen, press Read to manually endpoint the measurement. The display
freezes and
appears.
Note
Press and hold Read to switch between the automatic and manual endpoint format.
5.3.3 Performing a mV measurement
§ An electrode is connected to the instrument.
§ Make sure that the mV mode is selected.
-
22
Continue as described in steps 1 and 2 of the section Performing a pH measurement [} 22].
Operation of the Instrument
FiveEasy™ FiveEasy Plus™
5.4 Using the memory (FP20 only)
5.4.1 Storing a measurement result
The instrument can store up to 200 endpointed results.
-
Press STO when the measurement has endpointed.
ð M001 indicates that one result has been stored, and M200 that the maximum of 200 results have
been stored.
Note
If you press STO when M200 is displayed, Err 8 indicates that the memory is full. To store further data, you
will have to clear the memory.
5.4.2 Recalling from memory
1 Press and hold RCL to recall the stored values.
2 Press
or
to scroll through the stored results.
ð MR 001 to MR 200 indicates which result is currently displayed.
3 Press Exit to go back to the measurement screen.
5.4.3 Clearing the memory
1 Press and hold RCL to recall the stored values from memory.
2 Press RCL until ALL appears on the display.
3 Press Read to delete all measurement results.
ð CLr starts blinking on the display.
4 Press Read to confirm the deletion
- or Press Exit to cancel the deletion.
5.5 Print out (FP20 only)
5.5.1 Connection and configuration
A printer can be connected to the RS-232 interface of the FP20. The use of the RS-P25, RS-P26 or RS-P28
printer is recommended, because they recognize the FP20 and adjust the correct parameters automatically.
In case a different printer is used, the following parameters need to be set:
Baud-rate: 1,200 bps
Data bit: 8 bit
Parity: None
Stop bit: 1
5.5.2 Print-out following measurement / calibration
If a printer is connected to the FP20, a print out is automatically generated after each endpointed
measurement or calibration.
5.5.3 Printing from memory
When scrolling through the memory, you can print the entry that is currently viewed by pressing and
holding the key RCL.
5.6 Data export to PC (FP20 only)
Measurement data can be transferred to a PC after each endpointed measurement or calibration, using
LabX direct pH PC software.
To transfer the currently viewed memory data to the PC, press and hold the RCL.
FiveEasy™ FiveEasy Plus™
Operation of the Instrument
23
5.7 Self-diagnosis
1 Switch the meter on.
2 Press Read and Cal simultaneously until the meter displays the full screen.
ð Each icon blinks one after the other whereby you can check if all icons are correctly shown on the
display.
ð After that, starts to blink and 5 hardkey-icons are shown on the display.
3 Press any hardkey.
ð The specific icon disappears from the display.
4 Press each hardkey once.
ð When the self-diagnosis is completed successfully, PAS appears. If the self-diagnosis has failed, Err 2
appears.
Note
You must press all hardkeys within 1 minute. Otherwise FAL appears and the self-diagnosis has to be
redone.
5.8 Factory reset
Note
Loss of data!
With a factory reset all user-specific settings will be set to standard. Also all data
memories will be deleted.
§ The instrument is switched off.
1 Press and hold Read, Cal and Exit simultaneously for 2 seconds.
ð RST appears on the display.
2 Press Read.
3 Press Exit.
ð The instrument switches off.
ð All settings are reset.
24
Operation of the Instrument
FiveEasy™ FiveEasy Plus™
6 Maintenance
6.1 Cleaning the housing
Note
Damage to the instrument!
Ensure that no liquid enters the interior of the instrument.
Wipe off any spills immediately.
The meter does not require any maintenance other than an occasional wipe with a damp cloth. The housing
is made of acrylonitrile butadiene styrene (ABS). This material is sensitive to some organic solvents, such
as toluene, xylene and methyl ethyl ketone (MEK).
-
Clean the housing of the instrument using a cloth dampened with water and a mild detergent.
6.2 Electrode maintenance
• Make sure pH electrodes are always kept filled with the appropriate filling solution.
• For maximum accuracy, any filling solution that may have crystallized and encrusted the outside of the
electrode should be removed with deionized water.
• Always store the electrode according to the manufacturer’s instructions and do not allow it to dry out.
If the electrode slope falls rapidly, or if the response becomes sluggish, the following procedures may help.
Try one of the following, depending on your sample. Run a new calibration after treatment.
Symptom
Procedure
Fat or oil build-up.
Degrease the membrane with cotton wool soaked in
either acetone or a soap solution.
Membrane has dried out.
Soak the tip of the electrode overnight in 0.1 M HCl.
Protein build-up in the diaphragm.
Remove deposits by soaking the electrode in an
HCl/pepsin solution.
Silver sulfide contamination.
Remove deposits by soaking electrode in a thiourea
solution.
Note
• Cleaning and filling solutions should be handled with the same care as that given to toxic or corrosive
substances.
• For pH electrode trouble shooting you can also turn to www.electrodes.net
FiveEasy™ FiveEasy Plus™
Maintenance
25
6.3 Error messages
Error
Description
Resolution
Err 1
Memory access error
Reset to factory settings
Err 2
Self-diagnosis failed
Repeat the self-diagnosis procedure and make sure that you
finish pressing all five keys within two minutes.
Err 3
Measured values out of range
Make sure that the electrode wetting cap has been removed
and the electrode is properly connected and placed in the
sample solution.
If no electrode is connected, put the shorting plug on the
socket.
Err 4
Calibration buffer temperature
out of range (5 to 40 °C)
Keep the temperature within the range for calibration (5 to 40
°C).
Err 5
Offset out of range
Make sure you have the correct buffer and that it is fresh.
Disconnect, clean and/or replace the electrode.
Err 6
Slope out of range
Make sure you have the correct buffer and that it is fresh.
Disconnect, clean and/or replace the electrode.
Err 7
Meter cannot recognize the
buffer (Wrong buffer)
Make sure you have the correct buffer and that it is fresh.
Disconnect, clean and/or replace the electrode.
Err 8
Memory is full
Clear the memory
Err 9
Measurement data cannot be
stored twice
---
6.4 Error limits
Message Description
ERR 3
Value out of range
Range not accepted
pH
• FiveEasyTM
< -2.00 or > 16.00 pH
• FiveEasy PlusTM
< 0.00 or > 14.00 pH
mV
< -2000 or > 2000 mV
ERR 4
Buffer temperature out of range T [°C, °F]
< 5 or > 40 °C, < 41 or > 104 °F
ERR 5
Offset out of range (first cal.
point)
| Eref1-Eb |
≤ -35 or ≥ 35 mV
ERR 6
Slope out of range (following
cal. points)
| Eref1-Eb |
< 85% or > 110%
ERR 7
Wrong buffer
| ∆Eref1 |
< 60 mV
6.5 Disposal
In conformance with the European Directive 2002/96/EC on Waste Electrical and
Electronic Equipment (WEEE) this device may not be disposed of in domestic waste. This
also applies to countries outside the EU, per their specific requirements.
Please dispose of this product in accordance with local regulations at the collecting point
specified for electrical and electronic equipment. If you have any questions, please contact
the responsible authority or the distributor from which you purchased this device. Should
this device be passed on to other parties (for private or professional use), the content of
this regulation must also be related.
Thank you for your contribution to environmental protection.
26
Maintenance
FiveEasy™ FiveEasy Plus™
7 Product Portfolio
Meter and Kits
Description
Order No.
TM
F20-Meter
FiveEasy pH/mV meter without sensor
30266658
F20-Standard
FiveEasyTM pH/mV meter kit with LE438 sensor
30266626
FP20-Meter
TM
FiveEasy Plus pH/mV meter without sensor
30266627
TM
FP20-Standard
FiveEasy Plus pH/mV meter kit with LE438 sensor 30266628
FP20-Bio
FiveEasy PlusTM pH/mV meter kit with LE410 sensor 30266629
FP20-Micro
FiveEasy PlusTM pH/mV meter kit with LE422 sensor 30266940
FP20-TRIS
FiveEasy PlusTM pH/mV meter kit with LE420 sensor 30266941
FiveEasy™ FiveEasy Plus™
Product Portfolio
27
8 Accessories
28
Accessories
Item
Order No.
Power adapter
11120270
Electrode arm (includes sensor holder and 2 poles)
30239139
Electrode arm extension (additional pole)
30239140
Rubber caps to cover electrode arm holes (2pcs.)
51302952
Side cover to cover holes for electrode arm poles
30239146
Shorting plug BNC
30133643
Sensors
Order No.
LE438
51340242
LE407
51340330
LE408
51340347
LE409
51340331
LE410
51340348
LE420
51340332
LE422
30089747
LE427
51340333
NTC 30 kOhm, temperature sensor
51300164
Solutions
Order No.
pH 2.00 buffer sachets, 30 x 20 mL
30111134
pH 2.00 buffer solution, 250 mL
51350002
pH 2.00 buffer solution, 6 x 250 mL
51350016
pH 4.01 buffer sachets, 30 x 20 mL
51302069
pH 4.01 buffer solution, 250 mL
51350004
pH 4.01 buffer solution, 6 x 250 mL
51350018
pH 7.00 buffer sachets, 30 x 20 mL
51302047
pH 7.00 buffer solution, 250 mL
51350006
pH 7.00 buffer solution, 6 x 250 mL
51350020
pH 9.21 buffer sachets, 30 x 20 mL
51302070
pH 9.21 buffer solution, 250 mL
51350008
pH 9.21 buffer solution, 6 x 250 mL
51350022
pH 10.01 buffer sachets, 30 x 20 mL
51302079
pH 10.01 buffer solution, 250 mL
51350010
pH 10.01 buffer solution, 6 x 250 mL
51350024
pH 11.00 buffer sachets, 30 x 20 mL
30111135
pH 11.00 buffer solution, 250 mL
51350012
pH 11.00 buffer solution, 6 x 250 mL
51350026
Rainbow sachets I (10 sachets of pH 4.01 / 7.00 / 9.21)
51302068
Rainbow sachets II (10 sachets of pH 4.01 / 7.00 / 10.00)
51302080
Rainbow bottles I (2 x 250 mL of pH 4.01 / 7.00 / 9.21)
30095312
Rainbow bottles II (2 x 250 mL of pH 4.01 / 7.00 / 10.00)
30095313
InLab storage solution (for all InLab pH and redox electrodes), 250 mL
30111142
Electrolyte 3 mol/L KCl, 25 mL
51343180
Electrolyte 3 mol/L KCl, 250 mL
51350072
Electrolyte 3 mol/L KCl, 6 x 250 mL
51350080
HCl/Pepsin solution (removes protein contamination), 250 mL
51350100
Reactivation solution for pH electrodes, 25 mL
51350104
FiveEasy™ FiveEasy Plus™
Solutions
Order No.
Thiourea solution (removes silver sulfide contamination), 250 mL
51350102
FiveEasy™ FiveEasy Plus™
Accessories
29
9 Technical Data F20
General
Power rating AC adapter Line voltage
Input frequency
Output voltage
Power rating instrument Input voltage
Power consumption
Dimensions Height
(without sensor stand)
100 - 240 V AC
50/60 Hz
12 V DC
For use with CSA certified (or
equivalent approved) power source,
which must have a limited circuit
output.
9 - 12 V
1W
70 mm
Width
227 mm
Depth
147 mm
Weight
0.63 kg
Display LCD
Ambient conditions Operating temperature
Relative humidity
± 10%
4.3" Segmented LCD
0…40 °C
5%…85% (noncondensing)
from 31 °C to 40 °C linearly
descending to 50%
Overvoltage category
Class II
Pollution degree
2
Maximum operating altitude
2000 m above sea level
Range of application
For indoor use
Materials Housing
Window
ABS
Polymethyl methacrylate (PMMA)
Measurement
Parameters pH, mV
Sensor inputs pH/mV
Temperature
Connectors Analog input
pH Measuring range
Resolution
Limits of error
mV Measuring range
Resolution
Limits of error
Temperature Measuring range
Resolution
Technical Data F20
RCA (Cinch), NTC 30 kΩ
yes
0.00...14.00 pH
0.01 pH
± 0.01 pH
-2000…2000 mV
1 mV
±1 mV
0…100 °C (32...212 °F)
0.1 °C
Limits of error
± 0.5 °C
ATC/MTC
Yes
Calibration Calibration points
Predefined buffer groups
30
BNC, impedance > 1012 Ω
3
4
Automatic buffer recognition
Yes
Calibration methods
Linear
FiveEasy™ FiveEasy Plus™
General measurement Automatic and manual endpoint Yes
recording
Acoustic endpoint signal
Yes
Visual endpoint signal
Yes
Data security / storage Memory size
FiveEasy™ FiveEasy Plus™
Current calibration
Technical Data F20
31
10 Technical Data FP20
General
Power rating AC adapter Line voltage
Input frequency
Output voltage
Power rating instrument Input voltage
Power consumption
Dimensions Height
(without sensor stand)
100 - 240 V AC
50/60 Hz
12 V DC
For use with CSA certified (or
equivalent approved) power source,
which must have a limited circuit
output.
9 - 12 V
1W
70 mm
Width
227 mm
Depth
147 mm
Weight
0.63 kg
Display LCD
Ambient conditions Operating temperature
Relative humidity
± 10%
4.3" Segmented LCD
0…40 °C
5%…85% (noncondensing)
from 31 °C to 40 °C linearly
descending to 50%
Overvoltage category
Class II
Pollution degree
2
Maximum operating altitude
2000 m above sea level
Range of application
For indoor use
Materials Housing
Window
ABS
Polymethyl methacrylate (PMMA)
Measurement
Parameters pH, mV
Sensor inputs pH/mV
Temperature
Connectors RS232 interface
yes
yes
Reference input
yes
Limits of error (sensor input)
mV Measuring range
Resolution
Limits of error
Temperature Measuring range
Resolution
-2.00...16.00 pH
0.01 pH
± 0.01 pH
-2000…2000 mV
1 mV
±1 mV
-5…105 °C (23...221 °F)
0.1 °C
Limits of error
± 0.3 °C
ATC/MTC
Yes
Calibration Calibration points
Predefined buffer groups
Technical Data FP20
Cinch, NTC 30 kΩ
USB interface
pH Measuring range
Resolution
32
BNC, impedance > 1012 Ω
5
4
Automatic buffer recognition
Yes
Calibration methods
Linear/segmented
FiveEasy™ FiveEasy Plus™
General measurement Automatic and manual endpoint Yes
recording
Acoustic endpoint signal
Yes
Visual endpoint signal
Yes
Data security / storage Memory size
FiveEasy™ FiveEasy Plus™
200 measurements, current calibration
Technical Data FP20
33
11 Appendix
B1 METTLER TOLEDO USA (Ref. 25 °C)
T [°C]
1.68
4.01
7.00
10.01
5
1.67
4.00
7.09
10.25
10
1.67
4.00
7.06
10.18
15
1.67
4.00
7.04
10.12
20
1.68
4.00
7.02
10.06
25
1.68
4.01
7.00
10.01
30
1.68
4.01
6.99
9.97
35
1.69
4.02
6.98
9.93
40
1.69
4.03
6.97
9.89
B2 METTLER TOLEDO Europe (Ref. 25 °C)
T [°C]
2.00
4.01
7.00
9.21
11.00
5
2.02
4.01
7.09
9.45
11.72
10
2.01
4.00
7.06
9.38
11.54
15
2.00
4.00
7.04
9.32
11.36
20
2.00
4.00
7.02
9.26
11.18
25
2.00
4.01
7.00
9.21
11.00
30
1.99
4.01
6.99
9.16
10.82
35
1.99
4.02
6.98
9.11
10.64
40
1.98
4.03
6.97
9.06
10.46
B3 JJG119 (Ref. 25 °C)
T [°C]
1.680
4.003
6.864
9.182
12.460
5
1.669
3.999
6.949
9.391
13.210
10
1.671
3.996
6.921
9.330
13.011
15
1.673
3.996
6.898
9.276
12.820
20
1.676
3.998
6.879
9.226
12.637
25
1.680
4.003
6.864
9.182
12.460
30
1.684
4.010
6.852
9.142
12.292
35
1.688
4.019
6.844
9.105
12.130
40
1.694
4.029
6.838
9.072
11.975
B4 JIS Z 8802 (Ref. 25 °C)
34
Appendix
T [°C]
1.679
4.008
6.865
9.180
5
1.668
3.999
6.951
9.395
10
1.670
3.998
6.923
9.332
15
1.672
3.999
6.900
9.276
20
1.675
4.002
6.881
9.225
25
1.679
4.008
6.865
9.180
30
1.683
4.015
6.853
9.139
35
1.688
4.024
6.844
9.102
40
1.694
4.035
6.838
9.068
FiveEasy™ FiveEasy Plus™
www.mt.com/phlab
For more information
Mettler-Toledo AG, Analytical
CH-8603 Schwerzenbach, Switzerland
Tel. +41 22 567 53 22
Fax +41 22 567 53 23
www.mt.com
Subject to technical changes.
© Mettler-Toledo AG 10/2015
30266869B
*30266869*
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