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Metrohm 780 User Manual
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9
Anne
x
780/781 pH/Ion M
eter, Manual
149
:
├
standard additi
on / sample addition
│
├
type
│
├
conc.std.
│
├
report
│
└
addition
───┬
manual
┬
no.of additions
│
│
├
increment 1...n
│
│
└
stop V
│
├
auto dos
┬
dos.rate
│
│
├
no.of additions
│
│
├
V Exchange Unit
│
│
├
increment 1...n
│
│
└
stop V
│
└
auto
──┬
delta
U
│
├
dos.rate
│
├
no.of additions
│
├
V Exchange Units
└
preselections
└
stop V
├
req.ident
├
req.smpl.size
└
activate pulse
only meas.type:
std.a
dd and
smpl.a
dd
158
160
Table of Contents
Default Chapter
5
Table of Contents
5
1 Introduction
11
Instrument Description
11
Fig. 1: 781 Ph/Ion Meter Connected to 801Magnetic Stirrer
11
Parts and Controls
13
Fig. 2: Front View of the 780 Ph Meter or 781 Ph/Ion Meter
13
Fig. 3: Rear View of the 780 Ph Meter or 781 Ph/Ion Meter
14
Information about this Manual
15
Notation and Pictograms
15
Safety Information
16
Electrical Safety
16
General Handling Rules
16
2 Installation
17
Instrument Setup
17
Packaging
17
Checks
17
Location
17
Connecting the Accessories
18
Fig. 4: Possible Arrangements for Mounting the Base Plate
18
Fig. 5: Attaching the Support Rod and Base Plate
18
Connecting Optional Devices
19
Connecting the 801 Magnetic Stirrer
19
Fig. 6: Ready-Mounted Ph/Ise Measuring System
19
Fig. 7: 780 Ph Meter / 781 Ph/Ion Meter - 801 Magnetic Stirrer
19
Connecting the 802 Rod Stirrer
20
Fig. 8: 780 Ph Meter / 781 Ph/Ion Meter - 802 Rod Stirrer
20
Connecting a Dosimat Plus (Only 781)
21
Fig. 9: 781 Ph/Ion Meter - Dosimat Plus
21
Connecting a Sample Changer
22
Fig. 10: 781 Ph/Ion Meter - Dosimat Plus - Sample Changer
22
Connecting a Printer
23
Fig. 11: 780 Ph Meter / 781 Ph/Ion Meter - Printer
23
Connecting a Computer
25
Connecting the Electrodes and Sensors
26
Fig. 12: Connecting Sensors
26
Mains Connection
27
Switch on
27
Initial Configuration
28
3 Short Operating Tutorial
29
Ph Measurement
29
Requirements
29
Preparations
29
Ph Calibration
30
Ph Measurement
32
Determination of an Ion Concentration (Only 781: Conc Mode)
33
Requirements
33
Preparations
33
Calibrating the Fluoride ISE
34
Direct Measurement of Fluoride
38
4 Operation
41
The Keypad
41
Operating Concept
42
All Key Functions at a Glance
43
Operating Principles
48
Configuration and Method Parameters
48
Editing Menu Entries
48
Entering Text
49
5 Configuration
51
Report
52
Printing out Measured Values
54
Storing Measured Values
57
Auxiliaries
58
Monitoring
61
Peripheral Units
62
RS232 Settings
64
6 Methods / Parameters
65
Method Management
65
Ph Measurement (Ph Mode)
66
Measuring Parameters
66
Calibration Parameters
68
Limits Ph
72
Limits T
72
Plot Parameters
73
Preselections
73
Electrode Test
74
Temperature Measurement (T Mode)
75
Measuring Parameters
75
Limits T
76
Plot Parameters
77
Preselections
77
Potential Measurement (U Mode)
78
Measuring Parameters
78
Limits U
79
Plot Parameters
80
Preselections
80
Direct Ion Measurement (781 Only: Conc Mode)
81
Type of Measurement
81
Ion Parameters
81
Measuring Parameters
82
Calculation Parameters
84
Calibration Parameters
85
Limits Conc
87
Limits T
88
Plot Parameters
88
Preselections
89
Standard and Sample Addition (781 Only: Conc Mode)
90
Standard / Sample Addition
90
Preselections
93
7 Various Functions
95
Calibration and Addition/Subtraction Data
95
Ph Calibration Data
95
Conc Calibration Data (781 Ph/Ion Meter Only)
99
Addition/Subtraction Data (781 Ph/Ion Meter Only)
103
Reports
106
Arrangement of a Report
108
Report Identification
109
Measuring Point Report
109
Calibration Report
111
Result Report (781 Ph/Ion Meter Only)
112
Configuration Report
113
Parameter Report
114
Measured Values Memory Report
115
User Method Report
116
Measured Values Memory
117
Save Measured Values
117
Print Measured Values
117
Show Measured Values
118
Limit Monitoring
119
Uses
119
How It Functions
120
Fig. 13: Remote Outputs in Limit Monitoring
120
Setup
121
Locking
121
Input Assignment
122
Graphics
122
8 Troubleshooting - Messages - Maintenance
123
Troubleshooting
123
Messages
125
QM Support
130
Validation
132
Electronic Tests
132
Wet Tests
133
Ph/Ion Meter Maintenance
133
Diagnosis
134
Key Test
135
Ph Electrode Test
136
Preparations
136
Procedure
137
Results
139
Fig. 14: Diagram Showing Changes in Potential During an Electrode Test
139
Messages and Measures
141
Care and Maintenance of Ph Glass Electrodes
142
9 Annex
145
Technical Data
145
Measuring Modes
145
Measuring Inputs
145
Measuring Input Specifications
146
Interfaces
146
Power Supply
146
Safety Specifications
147
Electromagnetic Compatibility (EMC)
147
Ambient Temperature
147
Reference Conditions
147
Dimensions
147
Evaluation
148
Ph Calibration
148
Fig. 15: Theoretical U/Ph Relationship
148
Fig. 16: 3-Point Ph Calibration
149
Calibration for Ion Measurements
152
Addition Method
153
Menu Structures
154
Instrument Configuration
154
Method Parameters in the Ph Mode
156
Method Parameters in the T Mode
157
Method Parameters in the U Mode
157
Method Parameter in the Conc Mode
158
Stored Buffer Series
160
Remote Box
166
Pin Occupancy of the Remote Connection of the Remote Box
166
Fig. 17: Connections of the Optional 6.2148.010 Remote Box
166
Fig. 18: Pin Occupancy at Remote Interface
166
Functions of the Individual Remote Lines
167
Accessories
168
Warranty (Guarantee)
170
10 Index
173
4
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Metrohm 780 Specifications
General
Brand
Metrohm
Model
780
Category
Measuring Instruments
Language
English
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