Setra System Model 470 - Manual (Page 2)

2
Contents
SECTION ONE: Introduction ..................................................................................................... 3
1.1
About the Setra 470 ............................................................................................................ 3
1.2 About this Manual................................................................................................................ 4
SECTION TWO: Installing the Model 470 ................................................................................. 5
2.1
Power Connections ............................................................................................................. 5
2.2 Pressure Connections ......................................................................................................... 5
2.3 Communications Hardware ................................................................................................. 5
SECTION THREE: Communications Interfacing ..................................................................... 7
3.1
Communications Software Protocols .................................................................................. 7
3.2 Executing a Function ........................................................................................................... 7
3.3 Clearing a Number or Function ........................................................................................... 7
3.4 Functions ............................................................................................................................. 8
3.5 In Case of Error Messages.................................................................................................11
3.6 Symbols............................................................................................................................. 12
SECTION FOUR: Precision Measurement Functions ........................................................... 13
4.1
Interrogation ...................................................................................................................... 13
4.2 Converting Engineering Units............................................................................................ 13
4.3 User Defined Engineering Units in Nonvolatile Memory ................................................... 14
4.4 User Defined Engineering Units in Volatile Memory.......................................................... 15
4.5 Tracking Min and Max Values ........................................................................................... 16
4.6 Setting and Checking Alarm Setpoints in Nonvolatile Memory ......................................... 16
4.7 Setting and Checking Alarm Setpoints in Volatile Memory................................................ 17
4.8 Using the Tare and Zero Function ..................................................................................... 17
4.9 Repetitive Reporting .......................................................................................................... 18
4.10 Reporting Setup Summary ................................................................................................ 18
4.11 Digital Altimeter Setting Indicator (DASI)........................................................................... 19
SECTION FIVE: Setup Functions ............................................................................................ 21
5.1
Status After Power is Applied ............................................................................................ 21
5.2 Changing the Baud Rate ................................................................................................... 21
5.3 Disabling Engineering Units in Nonvolatile Memory.......................................................... 22
5.4 Disabling Engineering Units in Volatile Memory ................................................................ 23
5.5 Self Diagnostics................................................................................................................. 24
5.6 Software Revision Number................................................................................................ 25
5.7 Verify Function................................................................................................................... 25
5.8 Stability Indicator ............................................................................................................... 25
SECTION SIX: Altitude Measurement Functions ................................................................... 27
6.1
Standard Altitude Measurement ........................................................................................ 27
6.2 True Corrected Altitude Measurement .............................................................................. 27
6.3 Relative Altitude Measurement.......................................................................................... 29
SECTION SEVEN: Calibration ................................................................................................. 30
7.1
Calibration ......................................................................................................................... 30
7.2 Calibration and Program Enable ....................................................................................... 30
7.3 Zero Calibration ................................................................................................................. 31
7.4 Span Calibration ................................................................................................................ 32
Appendix I ................................................................................................................................. 33
Interface Program Example............................................................................................... 33
Specifications .................................................................................................................... 34
Limited Warranty ...................................................................................................................... 35