wtw pHotoFlex STD User manual

OPERATING MANUAL
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pHotoFlex®STD
LED FILTER PHOTOMETER

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pHotoFlex®STD
Copyright © 2020 Xylem Analytics Germany GmbH
Printed in Germany.

pHotoFlex®STD Contents
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Contents
1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 General features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.3 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.4 Socket field . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.5 LabStation (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.1.1 Safety information in the operating manual . . . . . . . . 10
2.1.2 Safety signs on the meter . . . . . . . . . . . . . . . . . . . 10
2.1.3 Further documents providing safety information . . 10
2.2 Safe operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2.1 Authorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2.2 Requirements for safe operation . . . . . . . . . . . . . . . . 11
2.2.3 Unauthorized use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.2.2 Inserting/exchanging the batteries . . . . . . . . . . . . . . . 13
3.3 Initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1 Switching on the meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.2 Inserting a cell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.3 General operating principles . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.1 Operating modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.3.2 Navigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.3.3 Navigation example 1: Setting the language . . . . . . . 20
4.3.4 Example 2 on navigation: Setting the date and time . 22
4.3.5 Menu overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.4 System settings (System menu) . . . . . . . . . . . . . . . . . . . . . . . 26
4.4.1 Measured value memory . . . . . . . . . . . . . . . . . . . . . . 27
4.4.2 Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.4.3 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.4.4 Date/time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.5 Photometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.5.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.5.2 Settings for photometric measurements . . . . . . 31
4.5.3 Measuring the concentration . . . . . . . . . . . . . . . . . . . 32
4.5.4 Blank value (reagent blank value) . . . . . . . . . . . . . . . 34
4.5.5 Standard adjustment (user calibration) . . . . . . . . . . . 36
4.5.6 Absorbance / % Transmission, measuring . . . . . . . . . 39
4.5.7 Zero adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

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4.5.8 Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
4.5.9 Analysis timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.5.10 Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
4.5.11 Measuring diluted samples . . . . . . . . . . . . . . . . . . . . . 43
4.6 Data memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
4.6.1 Storing measurement datasets . . . . . . . . . . . . . . . . . . 45
4.6.2 Filtering measurement datasets . . . . . . . . . . . . . . . . . 46
4.6.3 Displaying measurement datasets . . . . . . . . . . . . . . . 47
4.6.4 Download the measurement datsets to the RS232
interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4.6.5 Erasing stored measurement datasets . . . . . . . . . . . . 48
4.7 Transmitting data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
4.7.1 Establishing the connection to a PC . . . . . . . . . . . . . . 48
4.7.2 Data transmission with the PC software LS Data . . . . 49
4.7.3 Data transmission with the Excel add-in
MultiLab®Importer . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
4.7.4 Establishing the connection to a printer . . . . . . . . . . . 50
4.7.5 Configuration for the data transmission to a terminal
program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4.7.6 Transmitting data to a printer or terminal program . . . 52
4.7.7 Examples of data transmitted (printer, terminal
program) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4.8 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.8.1 Resetting the system settings . . . . . . . . . . . . . . . . . . . 54
4.8.2 Resetting the photometry settings . . . . . . . . . . . . . . . . 54
4.9 Meter information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.10 Software update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.11 Administrating user-defined methods . . . . . . . . . . . . . . . . . . . . 56
4.11.1 Options for method administration . . . . . . . . . . . . . . . 56
4.11.2 Administrating user-defined programs with a terminal
program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
5 Maintenance, cleaning, disposal . . . . . . . . . . . . . . . . . . . . . . 60
5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
5.1.1 Inserting/exchanging the batteries . . . . . . . . . . . . . . . 60
5.1.2 Retrofitting the battery pack . . . . . . . . . . . . . . . . . . . . 61
5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.2.1 Cleaning the cell shaft . . . . . . . . . . . . . . . . . . . . . . . . . 62
5.2.2 Cleaning the cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5.3 Packing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
5.4 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
6 What to do if... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.1 General errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
6.2 Photometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
7 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
7.1 General data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

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7.1.1 pHotoFlex®STD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
7.2 Photometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
8 Accessories and options . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
8.1 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
8.1.1 Meter accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
8.1.2 Connection cable: . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
8.2 Bar code reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
9 Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
10 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
11 Firmware update . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Overview pHotoFlex®STD
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1Overview
1.1 General features
The compact pHotoFlex®STD handheld precision meter enables you to car-
ry out the following measurements quickly and reliably:
Concentration measurements (colorimetric measurements)
Absorbance measurements
Transmission measurements
The pHotoFlex®STD handheld meter provides the maximum degree of ease
of use, reliability and measuring certainty for all applications.
1 Keypad
2 Display
3 Cell shaft
(folded out for a 16 mm cell to be inserted)
4 Connectors
If you need further information or application notes, you can ob-
tain the following material from WTW:
Application reports
Primers
Safety datasheets.
You will find information on available literature in the WTW cata-
log or on the Internet.
STD
1
2
4
3

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1.2 Keypad
Key functions
.
Select the measured variable <M>:
–Concentration
–Absorbance
–% Transmission
Open the menu for adjustment measurements (blank
values, zero adjustment)
<CAL/ZERO>
Select a program for concentration measurement
<PROG>
Open menus / confirm entries /
start measurement
<START/ENTER>
Call up the Configuration menu
(all settings are made here)
<MENU>
Switch over between available citation forms
<FORM>
Switch over between available units <UNIT>
Switch the meter on or off
<ON/OFF>
.

Overview pHotoFlex®STD
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1.3 Display
The graphic display shows all information of the current measurement in the
measured value display. The illumination enables to read the display even in
the dark.
Example
Output the display contents to the RS232 interface
(e.g. print) <PRT>
Open the Store menu: <STO>
Quick storing: 2 x <STO>
Highlight menu items or selection
Set values
<V>, <W>
Switch to the next higher menu level /
cancel input
<ESC>
Keys with an additional number printed on are assigned doubly.
This enables to directly enter numbers in special menus. Thus,
you can, for example, conveniently enter the date and time via
the number keys.
PRT
Measuring mode \ measured
parameter
Measured value (with unit)
Program and citation form
Diameter of the cell and mea-
suring range
Status line with date and time
Photometry \ Concentration
1.29 mg/l
83: A6/25 MC NH4 -N
16 mm 0.20 - 8.00 mg/l
01.02.05 15:12

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1.4 Socket field
1.5 LabStation (optional)
The LabStation, which is available as an accessory, enables you to use the
pHotoFlex®STD conveniently in the laboratory (see LabStation operating
manual).
Laboratory operation with the LabStation enables the following additional
functions:
With photometric measurements, the zero measurement is retained even
after switching the pHotoFlex®STD off and on again
You can connect a barcode reader for the simplified calling up of programs
The LSdata software included serves to easily enter user-defined pro-
grams
Operation with power pack and battery pack (included in the scope of de-
livery of the LabStation). The battery pack in the pHotoFlex®STD is auto-
matically charged as soon as the meter is placed in the LabStation.
1 Contacts for operation on the LabStation
2 RS232 (serial) interface
12

Safety pHotoFlex®STD
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2 Safety
2.1 Safety information
2.1.1 Safety information in the operating manual
This operating manual provides important information on the safe operation
of the meter. Read this operating manual thoroughly and make yourself famil-
iar with the meter before putting it into operation or working with it. The oper-
ating manual must be kept in the vicinity of the meter so you can always find
the information you need.
Important safety instructions are highlighted in this operating manual. They
are indicated by the warning symbol (triangle) in the left column. The signal
word (e.g. "Caution") indicates the level of danger:
CAUTION
indicates a possibly dangerous situation that can lead to slight (revers-
ible) injury if the safety instruction is not followed.
NOTE
indicates a situation where goods might be damaged if the actions mentioned
are not taken.
2.1.2 Safety signs on the meter
Note all labels, information signs and safety symbols on the meter and in the
battery compartment. A warning symbol (triangle) without text refers to safety
information in this operating manual.
2.1.3 Further documents providing safety information
Observe the safety datasheets of the test reagents when working with pho-
tometric test sets.