Sartorius PB-11 Operation Manual
98648-012-08
Operation Manual
Sartorius Basic Meter PB-11
3
Contents
4 General View
6 Warning and Safety Information
7 Installing and Maintaining Electrodes
9 Standardizing for pH Measurement
13 Using Setup
15 Standardizing for Millivolt Measurement
18 Understanding pH Theory
19 Temperature Compensation
20 Measuring pH
21 Troubleshooting
23 Meter Specifications
24 Accessories
25 C Declaration of Conformity
4
General View
1 Setup button:
Press to clear buffers,
review electrode
calibration or select new
autorecognized buffers
2 Mode button:
Press to toggle between
pH and mV mode
3 Standardize button:
Press to enter each buffer
4 Enter button:
Press to select menu
item options
5 Measuring icon
6 Temperature
7 Mode
8 Result
9 Prompts
10 Buffer icons
11 Icon: standardization
(calibration of the meter)
in process
12 Stability icon
13 Standardizing icon
14 Standardization result
Front View
Display
1
2
3
4
1.68
4.01 6.86
9.18
12.46
S1
S2 S3
32
1
%/¡C
Auto
Man
Set
Clear
OK
Error
1234567810101213
Sal
TDS
%DO
mg/L
S/cm cm ion
rel
mV pH
m
µ
K
M
°C
S
13
12
11
10
14
5
6
7
8
9
1
2
3
5
1 Power cable connector
2 Reference electrode
connector (used with
separate reference
electrodes)
3 BNC electrode connector
4 Temperature compensation
probe connector
5 AC adapter
Rear View
Connecting to a Power Source
1
2
3
4
1
5
6
Warning and Safety Information
For safety and operating reasons, only authorized
service technicians may open the Basic Meter PB-11
housing. Therefore, only authorized technicians may
repair or perform maintenance on this pH meter.
Any tampering with the pH meter or negligent or
intentional damage to this equipment will void any
warranty claims against the manufacturer.
If liquid gets into the pH meter, unplug it from AC
power (mains supply) and have an authorized service
technician check the pH meter.
If you do not plan to use this pH meter for a relatively
long period, please disconnect it from AC power.
For safety reasons, use this equipment only for the
application described in this operation manual.
Make sure that the buffers used for standardizing
have exactly the same values that are stored.
7
Installing and Maintaining Electrodes
1. Remove the protective end cover from the electrode.
2. Before first use of your electrode, or whenever
the electrode is dry, soak overnight in a standard
solution or KCI solution.
3. Remove the shorting cap on the pH meter connector.
Install the electrode by plugging the BNC and ATC
connectors into the jacks on the rear panel.
8
4. Option: Install an ion selective electrode by removing
the BNC shorting cap and plugging the BNC connector
(twist-lock) into the BNC jack. If a combination
electrode is not available, plug the separate reference
electrode into the ref pin.
5. Clean the electrode between each measurement with
distilled water or deionized water, or part of the next
solution to be measured.
6. Store glass pH electrodes in KCI solution or electrode
filling solution. Make sure the liquid level of the
internal filling solution is always a few centimeters
higher than that of the measurement solution.
Reference
Electrode
ISE
9
Standardizing for pH Measurement
Because electrodes vary in their response, you
must standardize (calibrate) your pH meter and
electrode to compensate for electrode variation.
The more frequently you standardize, the more
accurate your measurements. Standardize daily,
or more often, for accurate results.
This pH meter allows automatic standardization
using up to three buffers. Press the Standardize
button again to delete all the standardization data
stored up to that point. The pH meter performs
automatic temperature compensation.
1. Immerse electrode in a buffer solution. Stir gently.
Allow the electrode to reach a stable value.
2. Press the Mode button until your digital display
indicates pH mode. This button toggles between
pH and mV modes.
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