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Metrohm 912 User Manual
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￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭￭
8 T
echnical specifications
912/913/914 Meter
￭￭￭￭￭￭￭￭
91
8.5
Ener
gy supply
Lithium polymer
battery
3.7 V
, 3000 mAh
The rechar
geable battery
cannot
be replaced by the user
.
USB connector
Nominal input
voltage
5 V ±5% DC
P
ower con-
sumption
850 mA max.
P
ower con-
sumption at PC-
USB
500 mA
P
ower supply unit
No. 6.2166.100 (Accessories)
Nominal input
voltage
100 - 240 V A
C
Fr
equency
50 - 60 Hz
Output voltage
5.25 V DC
Nominal output
curr
ent
1530 mA max.
12 V USB adapter
No. 6.2166.500 (optional accessories)
Nominal input
voltage
12 V DC
Output voltage
5 V DC
Nominal output
curr
ent
1000 mA
8.6
Char
ging time
Char
ging time
with power supply
unit
9 hours with original power supply unit (no. 6.2166.100) and original
USB cable
Char
ging time on
USB interface
15 hours
Char
ging time
with USB Y cable
15 hours
100
102
Table of Contents
Default Chapter
5
Table of Contents
5
1 Introduction
11
Instrument Description
11
Instrument Versions and Sales Versions
12
Energy Supply
12
Interfaces
12
Sensors
13
Intended Use
13
About the Documentation
13
Symbols and Conventions
13
Safety Instructions
14
General Notes on Safety
14
Electrical Safety
14
Flammable Solvents and Chemicals
15
Recycling and Disposal
16
2 Overview of the Instrument
17
Instrument Connectors
17
Conductometer
17
Figure 1 912 Conductometer - Connectors
17
Ph Meter | 913 Ph/Do Meter
18
Ph/Do/Conductometer
18
Figure 2 913 Ph Meter - Connectors
18
Figure 3 Ph/Do/Conductometer (Digital) - Connectors
18
Ph/Conductometer
19
Application Environment
19
Laboratory Use
19
Figure 4 914 Ph/Conductometer (Analog) - Connectors
19
Mobile Application
20
Figure 5 912/913/914 Meter in a Laboratory Setup
20
Figure 6 912/913/914 Meter for Mobile Application
21
3 Installation
22
Unpacking and Inspecting the Instrument
22
Packaging
22
Checks
22
Application Area
22
Energy Supply
22
Charging the Battery
24
Operation with Power Supply Unit
25
Operation Via USB Connector (PC)
25
Connecting Sensors
26
Disconnecting Sensors
26
Connecting a Printer
27
Initial Configuration
28
Setting the Language
28
Figure 7 USB y Cable
28
Setting the Date and Time
29
4 Operation
31
Switching the Instrument on and off
31
Displays
31
Figure 8 View - Main Dialog
32
Figure 9 View - Menu Dialog
33
Figure 10 View - Editing Dialog
33
Figure 11 View - Selection Dialog
34
Figure 12 View - Standby Display
34
Status Displays
35
Rechargeable Battery Status
35
User Rights
35
Sensor Quality for Ph Electrodes
35
Sensor Status for DO Sensors
36
Control Keys
36
Basic Operation
37
Main Dialog with Two Measuring Channels
37
Figure 13 Operation - Main Dialog, Two-Channel Ph and Conductivity
38
Figure 14 Operation - Main Dialog, Two-Channel Ph and Conductivity
39
Main Dialog with One Measuring Channel
40
Figure 15 Operation - Main Dialog, One-Channel Ph
40
Operation in the Main Dialog
41
Menu Dialog
42
Figure 16 Operation - Menu Dialog
42
Editing Dialog
43
Figure 17 Operation - Editing Dialog
43
Selection Dialog
44
Figure 18 Operation - Selection Dialog
44
Changing the User
45
Menu Structures
46
Conductometer
47
Ph Meter
48
Ph/Do Meter
49
Ph/Conductometer
50
Ph/Do/Conductometer
51
Menu Dialogs
52
Parameters Ph/U/T and Parameters Ph/U/T IS
52
Parameters Κ/Tds/Sal/Ρ/T
53
Parameters DO
54
Measured Values
56
Sensors
58
Report
65
Configuration
66
User
67
Ph Measurement
68
Ph Electrode Calibration
68
Measurement
70
Conductivity Measurement
71
Determination of the Cell Constant (Calibration)
71
Measurement
72
Oxygen Measurement
74
Calibration
74
Measurement
75
Issuing Reports/Measured Values
76
Printing out
76
PC/LIMS and CSV Data Transfer
77
5 Operation and Maintenance
80
General Notes
80
Care
80
Maintenance by Metrohm Service
80
Sensor Care
80
6 Troubleshooting
81
General
81
Problems
82
Troubleshooting
82
Restarting/Resetting the Instrument
84
Instrument Reset
84
Resetting the Instrument to Factory Settings
84
Messages
85
Figure 19 Example of a Message
85
7 Appendix
86
Saved Buffer Series
86
Metrohm
87
NIST (According to DIN Standard 19266, 2015)
88
DIN (According to DIN Standard 19267, 2012)
89
Fisher
90
Mettler Toledo
91
Merck Certipur 20 / Titrisol
92
Merck Certipur 25
93
Beckmann
94
Radiometer Analytical
95
Baker
96
Hamilton DURACAL
97
Fluka
98
8 Technical Specifications
99
Measuring Inputs
99
Measured Value Memory
100
TFT Display
100
Interfaces
100
Energy Supply
101
Charging Time
101
Runtime with Rechargeable Battery
102
Ambient Temperature
102
Reference Conditions
102
Dimensions/Material
103
4
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Metrohm 912 Specifications
General
Brand
Metrohm
Model
912
Category
Measuring Instruments
Language
English
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