Table Of Contents - Michell Instruments Pura User Manual

Pura Online Hygrometer User's Manual
Contents
Safety ..............................................................................................................................................vi
Electrical Safety .........................................................................................................................vi
Pressure Safety .........................................................................................................................vi
Toxic Materials ..........................................................................................................................vi
Repair and Maintenance.............................................................................................................vi
Calibration ................................................................................................................................vi
Safety Conformity ......................................................................................................................vi
Abbreviations ................................................................................................................................... vii
Warnings ......................................................................................................................................... vii
Recycling Policy ............................................................................................................................... viii
WEEE And RoHS Compliance ............................................................................................................ viii
Calibration Facilities ......................................................................................................................... viii
Manufacturing Quality ...................................................................................................................... viii
Warranty ..........................................................................................................................................ix
Return Policy .....................................................................................................................................ix
1 INTRODUCTION ........................................................................................................................ 1
2 DESCRIPTION ........................................................................................................................... 1
2.1 Display ........................................................................................................................... 2
2.2 Function Keys ................................................................................................................. 4
2.3 Process Indicator Menu Structure ..................................................................................... 5
2.3.1 Flowchart Reading Method .......................................................................................... 6
2.3.2 Flowchart Example ..................................................................................................... 7
3 OPERATION .............................................................................................................................. 8
3.1 Operational Requirements ............................................................................................... 8
3.1.1 Environmental Requirements - Process Indicator .......................................................... 8
3.1.2 Electrical Requirements ............................................................................................... 8
3.2 Mounting the Process Indicator ........................................................................................ 8
3.3 Electrical Connections ....................................................................................................10
3.3.1 AC Power Supply Input...............................................................................................11
3.3.2 Preliminary System Test .............................................................................................12
3.3.3 DC Power Supply Input (Optional) ...............................................................................13
3.4 Signal Output Connections .............................................................................................14
3.5 First Time Operation ......................................................................................................16
3.6 System Alarms ...............................................................................................................17
3.6.1 Reversal of Default Alarm Switching Logic ...................................................................18
3.6.2 Set-up Alarm Levels ...................................................................................................20
3.6.3 Confi gure Analog Output Current Loop ........................................................................21
3.7 Change Dew-Point Temperature Range ............................................................................22
3.7.1 Span and Unit Settings ..............................................................................................23
3.7.2 Confi gure Alarm Set-Point Limits .................................................................................24
3.7.3 Change Scale Units (to ppm
4 SENSOR INSTALLATION ............................................................................................................27
4.1 Transmitter Connections .............................................................................................27
4.2 Installing the Sensor ......................................................................................................28
4.3 Transmitter Cable ......................................................................................................29
5 WHICH GASES TO MEASURE? ...................................................................................................31
6 MAINTENANCE .........................................................................................................................31
7 FAULT CONDITIONS .................................................................................................................31
97303 Issue 1.2, March 2016
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