QIS SenseLine Plus F470 User manual

Operating Instructions
SenseLine Plus
pH / ORP/ Ion meter F470

SenseLine Plus pH 1
Contents
Contents
1. Introduction 3
2. Safety measures 3
3. Installation 5
3.1 Installing the batteries 5
3.2 Fitting the wrist strap 5
4. Operating the F470 pH meter 6
4.1 The display 6
4.2 Key controls 7
4.3 Operation with softkeys 8
4.4 Calibration 8
4.4.1 pH settings 8
4.4.2 Setting a customized buffer group 9
4.4.3 Setting ion concentration standards 9
4.4.4 Performing a calibration 9
4.5 Sample measurement 10
4.5.1 Performing a pH measurement 10
4.5.2 Performing a mV/rel. mV measurement 10
4.5.3 Performing an ion measurement 10
4.6 Menus for pH/mV/Rel. mV/Ion measurement 11
4.7 Handling your stored data 16
4.7.1 Menu structure 16
4.7.2 Infrared interface 16
4.8 Working in the routine mode 17
4.9 Error messages 17
5. Maintenance 18
5.1 Meter maintenance 18
5.2 Electrode maintenance 18
5.3 Disposal 19
6. Accessories 20
7. Specifications 21
8. Appendix 22
8.1 Buffer tables 22
8.2 Error Limits 23

SenseLine Plus pH2

SenseLine Plus pH 3
Introduction / Safety precautions
1. Introduction
Thank you for purchasing this high quality QiS portable meter. SenseLine Plus is much more than just a
series of portable meters with an excellent price/performance ratio. It is an ingenious concept that includes
many exciting new features:
- IP67 rating: this applies to the instrument itself as well as to the sensors and the connections;
- optimum ease of use, making the operating instructions primarily a source of reference;
- excellent ergonomics, as if the instrument were part of you;
- option for regular equipment qualification, giving you full confidence that your measurement results are
always accurate;
2. Safety measures
Measures for your protection
- Never work in an environment subject to explosion hazards! The housing of the instrument is
not gas tight (explosion hazard due to spark formation, corrosion caused by the ingress of
gases).
- When using chemicals and solvents, comply with the instructions of the producer and the
general lab safety rules!
Measures for your operational safety
- Do not unscrew the two halves of the housing.
- Have the instrument serviced only by QiS Service!
- Dry off any liquids sprayed immediately! The instrument is not watertight.
- Exclude the following environmental influences:
- powerful vibrations,
- direct sunlight,
- atmospheric humidity greater than 80%,
- corrosive gas atmosphere,
- temperatures below 5 °C and above 40 °C,
- powerful electric or magnetic fields!

SenseLine Plus pH4
Installation
a BNC socket for mV/pH signal input
b Cinch socket for temperature signal input
cSlots for attaching the wrist strap
d Fixing points
e Infrared (IrDA) window
f Display
g Battery cover
h Rubber key pad
i Bottom cap
k Rubber feet fixing points

SenseLine Plus pH 5
Installation
3. Installation
Carefully unpack the meter. Keep the calibration certificate in a safe place.
3.1 Installing the batteries
1. Push the button on the Battery cover in the direction of the arrow, hold the lid with two fingers and
remove it;
2. Insert the batteries in the battery compartment, as shown;
3. Replace the Battery cover, and push back the button to fix the lid in place.
Note
The IP67 rating requires the battery compartment to be perfectly sealed. The sealing ring around the Battery
cover must be replaced if it is damaged in any way (SenseLine Sealing Kit, QA8110X).
3.2 Fitting the wrist strap
Fit the wrist strap as shown in the diagram.

SenseLine Plus pH6
4. Operating the F470 pH meter
4.1 The display
1 Battery status shows the condition of the batteries – fully charged, half-charged or fully discharged.
(To replace batteries see Section 3.1)
2Auto-off override, in default operation, the meter switches itself off after 15 minutes to prolong battery
life. After switching off/on the auto-off is active again
3IrDA infrared interface for data transfer to printer or PC (See Section 4.7)
4GLP print-out is acitvated (See end of Section 4.6)
5Data Logging, timed interval reading is active, data is transferred to memory at a user-defined interval
6Backlighting, meter switches on backlighting when any key is pressed
7Electrode condition (for electrode maintenance, see Section 5.2)
Slope: 80-125% Slope: 70-80% Slope: 60-70%
Offset: ±(0-15) mV Offset: ±(15-35) mV Offset: ±(>35) mV
Electrode is in Electrode needs Electrode is faulty
good condition cleaning
The frame blinks when the calibration reminder is on and a calibration is due.
8pH/mV/concentration reading
9Temperature
10 Dot matrix area
Operation

SenseLine Plus pH 7
Operation
4.2 Key controls
Press and release Press and hold for 2 seconds
- Meter on/off - Switch on/off auto-off override (switch-
es off the meter after 15 minutes)
- Start or endpoint measurement
- Back to measurement mode
(ignore the input)
- Start calibration
- Switch between pH, mV, rel. mV and
ion concentration modes
- Backlighting: on/off (when backlighting
is on, the meter switches on back-
lighting at the stroke of any key for a
user defined period of 10, 15 or 30
seconds.)
Softkeys
Measure

SenseLine Plus pH8
4.3 Operation with softkeys
The SenseLine Plus F470 pH meter has three softkeys. The functions assigned to them change during opera-
tion depending on the application. The assignment is shown on the bottom line of the screen.
Example: In the a measurement screen, the three softkeys are assigned as follows:
Menu Store Data
Activate menu setting Store an endpointed Activate “Data” menu
measurement
The other soft key functions are as follows:
gMove one digit to the right + Increase value by one
Enter Enter the highlighted menu Exit One level up in the menu tree
Accept the entered value
Select Select the highlighted function i Scroll through the menu
Edit Change the settings Back One step back in the procedure
End Store and quit menu Next One step forward in the procedure
Save Save the calibration data Tran s Transfer data to printer or PC
Delete Delete the selected data Yes Confirm deletion
4.4 Calibration
The SenseLine Plus F470 pH/ORP/ION Meter allows you to perform calibrations with up to five points.
4.4.1 pH settings
If you select your calibration buffer group from one of the six predefined buffer groups in the meter, the buffers
are automatically recognized and displayed during calibration (auto buffer recognition).
The six predefined buffer groups are:
11.68 4.00 7.00 10.01 (at 25 °C)
22.00 4.01 7.00 9.21 11.00 (at 25 °C)
32.00 4.00 7.00 9.00 12.00 (at 20 °C)
41.679 4.008 6.865 9.180 (at 25 °C)
51.679 4.006 6.865 9.180 12.454 (a t 25 °C)
61.09 4.65 6.79 9.23 12.75 (at 25 °C)
Tables (B1...B6) for automatic temperature compensation are programmed in the meter for each buffer (see
also Appendix).
You can also follow the buffer setting procedure described below to define your own buffer group , but in this
case auto buffer recognition does not work during calibration.
Operation / Calibration

SenseLine Plus pH 9
4.4.2 Setting a customized buffer group
- In the pH menu enter “4. Set Cal”, enter “1. Buffer” and select “7. Customized”.
- Edit the temperature of the pH buffers.
- Press Enter to save the value.
- Enter the pH value of your first buffer. Press Enter to save the value.
- Press Next to enter the next buffer, press Back to re-enter the current buffer value or press End to finish
setting.
- After you have made the settings, the temperature and buffers entered are shown on the display. Quit
the menu and start the calibration.
4.4.3 Setting ion concentration standards
SenseLine Plus F470 pH/ORP/ION Meter allows you to calibrate using one of the following concentration
units:
1. m mo l / L
2. mol/L
3. ppm
4. mg/L
5. %
- In the ion menu enter “4. Set Cal”, enter “1. Standard” and press Edit to start setting.
- Select the concentration unit in which you have prepared the standards.
- Enter the temperature of the standards.
- Press Enter to save the value.
- Enter the concentration of the standards.
- Press Enter to save the value
- Press Next to enter the next standard, press Back to re-enter the current standard or press End to finish
setting.
- After you have made the settings, the temperature and buffers entered are shown on the display. Quit
the menu and start the calibration.
4.4.4 Performing a calibration
- Place the electrode in a calibration buffer and press Cal.
- The meter endpoints according to the preselected endpoint format or after pressing Measure.
- Rinse the electrode with deionized water.
- Place the electrode in the second calibration buffer and press Cal.
- Repeat the procedure for all of your calibration buffers.
- End the calibration by pressing the End softkey. The calibration data is shown on the display.
- To use the calibration data for later measurements, press Save. To discard the calibration data, press
Cancel.
Calibration