Hach-lange ORBISPHERE Model 51x User Manual Manuel d'utilisateur Page 50
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View Menu
5.1 Selection of the view style
Numeric view
This is the default view. Display shows the numeric measurement value identified for each gas
measurement channel available, a graphic showing measurement value evolution during the set time
frame, and sample temperature.
This display can be configured to suit individual conditions and convenience.
Diagnostic view
The diagnostic view contains useful information for troubleshooting purposes. The amount of information
displayed depends on the gas being measured and the channel configuration.
Statistic view
This feature offers statistical data that matches with Total Quality management tools. Statistics is a tool
to better analyze how a process behave. The 51x statistics window gives some useful information.
The statistics are calculated from the data in the measurement file. The values are updated each time a
new value is added to this file. Therefore the changes made in the configuration window are considered
only once a new value is added.
Cp process capability
Cp is an index used to assess the width of the process spread in comparison to the width of the
specification. It is calculated by dividing the allowable spread by the actual spread.
• A Cp of one indicates that the width of the process and the width of the specification are the
same.
• A Cp of less than one indicates that the process spread is greater than the specification. This
means that some of the data lies outside the specification.
• A Cp of greater than one indicates that the process spread is less than the width of the
specification. Potentially this means that the process can fit inside the specification limits
CPk process variability
Cpk takes into account the center of the data relative to the specifications, as well as the variation in
the process.
• A Cpk value of one indicates that the tail of the distribution and the specification are an equal
distance from the overall average.
• A Cpk of less than one means that some of the data is beyond the specification limit.
• A Cpk greater than one indicates that the data is within the specification.
• The larger the Cpk, the more central and within specification the data.
CPm process repeatability
Capability index that takes into account variation between the process average and the target. If the
process average and the target are the same value, Cpm will be the same as Cpk. If the average
drifts from the target, Cpm will be less than Cpk.
Skewness
negative
positive
Figure 30 Skewness
An asymmetric frequency distribution is skewed to the left if the lower tail
is longer than the upper tail, and skewed to the right if the upper tail is
longer than the lower tail. Distributions of positive-valued random
variables values are often skewed right.
- ORBISPHERE Model 51x Analyzer 1
- Table of Contents 3
- Section 1 General Information 7
- 1.3.2 Safety precautions 8
- 1.3.3 Service and repairs 8
- 1.3.4 Precautionary labels 9
- General Information 10
- 1.5 Product disposal 12
- Section 2 Specifications 15
- Specifications 16
- 2.2 Hardware description 17
- 2.4 Security level table 20
- 2.5 Default parameters 21
- Section 3 Installation 23
- 3.2 Installation check list 24
- Installation 25
- 3.3.1 Instrument dimensions 25
- 3.3.2 Wall mounting 26
- 3.3.3 Pipe mounting 26
- 3.4 Panel mount instrument 29
- 3.4.2 Mounting 30
- 3.5 Portable table instrument 32
- 3.5.2 Mounting 33
- 3.8.1 Sensor cable 38
- 3.8.3 Main board connections 39
- 3.8.4 Measurement board 40
- 3.9 Measurement alarm relays 41
- 3.10 Sensor installation 42
- Section 4 User Interface 43
- User Interface 44
- 4.2.3 Menu navigation 45
- 4.2.4 Rolling list 45
- 4.2.5 Virtual keyboard 46
- 4.2.7 Warning windows 46
- 4.3 Main menu structure 47
- Section 5 View Menu 49
- View Menu 50
- Section 6 Measurement Menu 53
- 6.1 Instrument configuration 54
- 6.2 Measurement configuration 55
- Measurement Menu 56
- Section 7 Calibration menu 61
- Calibration menu 62
- 7.1 Definitions 63
- 7.2 EC gas sensor calibration 63
- sensor calibration 64
- 7.3 TC gas sensor calibration 65
- 7.9 Calibration reports 68
- Section 8 Inputs/Outputs Menu 69
- 8.1 Configure snooze 70
- 8.2 View inputs/outputs 70
- 8.3 Relays 70
- 8.4 Analog outputs 71
- Inputs/Outputs Menu 72
- Section 9 Communication Menu 79
- Communication Menu 80
- 9.1.1 Data available 81
- 9.1.2 Example of use 84
- 9.2.1 Installation 85
- 9.2.2 Input/Output data 86
- 9.3 USB-A port (host) 89
- 9.4 HTTP/TCP-IP 90
- 9.5.3 Upload report files 92
- Section 10 Security Menu 95
- 10.2 Configure security 96
- 10.3 User management 96
- 10.4 User action log file 96
- Section 11 Products Menu 97
- Products Menu 98
- Global Configuration Menu 100
- Section 13 Services menu 101
- Services menu 102
- 13.1 Sensor diagnostics 103
- 13.5 Buzzer 104
- 13.6 Boards info 104
- 13.2 Language selection 104
- 13.3 Clock 104
- 13.4Screen 104
- 13.7 Batteries 105
- 13.8 Software download 105
- 13.9 End application 105
- 14.1 Instrument maintenance 107
- 14.2 Troubleshooting 107
- Table 4 List of Events 108
- Section 15 Part Lists 111
- 15.2 Spare parts 112
- Section 16 Glossary 113
- Glossary 114
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