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Measuring Instruments
780
Manual
Metrohm 780 Manual
Ph meter / ph/ion meter
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
1 Introduction
Instrument Description
Fig. 1: 781 Ph/Ion Meter Connected to 801Magnetic Stirrer
Parts and Controls
Fig. 2: Front View of the 780 Ph Meter or 781 Ph/Ion Meter
Fig. 3: Rear View of the 780 Ph Meter or 781 Ph/Ion Meter
Information about this Manual
Notation and Pictograms
Safety Information
Electrical Safety
General Handling Rules
2 Installation
Instrument Setup
Packaging
Checks
Location
Connecting the Accessories
Fig. 4: Possible Arrangements for Mounting the Base Plate
Fig. 5: Attaching the Support Rod and Base Plate
Connecting Optional Devices
Connecting the 801 Magnetic Stirrer
Fig. 6: Ready-Mounted Ph/Ise Measuring System
Fig. 7: 780 Ph Meter / 781 Ph/Ion Meter - 801 Magnetic Stirrer
Connecting the 802 Rod Stirrer
Fig. 8: 780 Ph Meter / 781 Ph/Ion Meter - 802 Rod Stirrer
Connecting a Dosimat Plus (Only 781)
Fig. 9: 781 Ph/Ion Meter - Dosimat Plus
Connecting a Sample Changer
Fig. 10: 781 Ph/Ion Meter - Dosimat Plus - Sample Changer
Connecting a Printer
Fig. 11: 780 Ph Meter / 781 Ph/Ion Meter - Printer
Connecting a Computer
Connecting the Electrodes and Sensors
Fig. 12: Connecting Sensors
Mains Connection
Switch on
Initial Configuration
3 Short Operating Tutorial
Ph Measurement
Requirements
Preparations
Ph Calibration
Ph Measurement
Determination of an Ion Concentration (Only 781: Conc Mode)
Requirements
Preparations
Calibrating the Fluoride ISE
Direct Measurement of Fluoride
4 Operation
The Keypad
Operating Concept
All Key Functions at a Glance
Operating Principles
Configuration and Method Parameters
Editing Menu Entries
Entering Text
5 Configuration
Report
Printing out Measured Values
Storing Measured Values
Auxiliaries
Monitoring
Peripheral Units
RS232 Settings
6 Methods / Parameters
Method Management
Ph Measurement (Ph Mode)
Measuring Parameters
Calibration Parameters
Limits Ph
Limits T
Plot Parameters
Preselections
Electrode Test
Temperature Measurement (T Mode)
Measuring Parameters
Limits T
Plot Parameters
Preselections
Potential Measurement (U Mode)
Measuring Parameters
Limits U
Plot Parameters
Preselections
Direct Ion Measurement (781 Only: Conc Mode)
Type of Measurement
Ion Parameters
Measuring Parameters
Calculation Parameters
Calibration Parameters
Limits Conc
Limits T
Plot Parameters
Preselections
Standard and Sample Addition (781 Only: Conc Mode)
Standard / Sample Addition
Preselections
7 Various Functions
Calibration and Addition/Subtraction Data
Ph Calibration Data
Conc Calibration Data (781 Ph/Ion Meter Only)
Addition/Subtraction Data (781 Ph/Ion Meter Only)
Reports
Arrangement of a Report
Report Identification
Measuring Point Report
Calibration Report
Result Report (781 Ph/Ion Meter Only)
Configuration Report
Parameter Report
Measured Values Memory Report
User Method Report
Measured Values Memory
Save Measured Values
Print Measured Values
Show Measured Values
Limit Monitoring
Uses
How It Functions
Fig. 13: Remote Outputs in Limit Monitoring
Setup
Locking
Input Assignment
Graphics
8 Troubleshooting - Messages - Maintenance
Troubleshooting
Messages
QM Support
Validation
Electronic Tests
Wet Tests
Ph/Ion Meter Maintenance
Diagnosis
Key Test
Ph Electrode Test
Preparations
Procedure
Results
Fig. 14: Diagram Showing Changes in Potential During an Electrode Test
Messages and Measures
Care and Maintenance of Ph Glass Electrodes
9 Annex
Technical Data
Measuring Modes
Measuring Inputs
Measuring Input Specifications
Interfaces
Power Supply
Safety Specifications
Electromagnetic Compatibility (EMC)
Ambient Temperature
Reference Conditions
Dimensions
Evaluation
Ph Calibration
Fig. 15: Theoretical U/Ph Relationship
Fig. 16: 3-Point Ph Calibration
Calibration for Ion Measurements
Addition Method
Menu Structures
Instrument Configuration
Method Parameters in the Ph Mode
Method Parameters in the T Mode
Method Parameters in the U Mode
Method Parameter in the Conc Mode
Stored Buffer Series
Remote Box
Pin Occupancy of the Remote Connection of the Remote Box
Fig. 17: Connections of the Optional 6.2148.010 Remote Box
Fig. 18: Pin Occupancy at Remote Interface
Functions of the Individual Remote Lines
Accessories
Warranty (Guarantee)
10 Index
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Quick Links
1
Ph Calibration
2
Calibration Parameters
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780 pH Meter / 781 pH/Ion Meter
Manual
8.781.8002EN / 2014-07-31
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