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Calibration, Smart a/d™ theory of operation, Smart a/d™ timing – Sensoray 2518 User Manual

Page 3: Specifications

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Sensoray Model 2518/2519 Ethernet Smart A/D™

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Table of Contents

6.5

Sensor Acquisition Functions . . . . . 18

6.5.1 GetAmbientTemp()
6.5.2 GetSensorData()
6.5.3 GetAllSensors()

6.6

Alarm Functions . . . . . . . . . . . . . . . . 19

6.6.1 Alarm States
6.6.2 SetAlarmLimits()
6.6.3 SetAlarmEnable()
6.6.4 GetAlarms()

6.7

Strain/Pressure Gage Functions . . . 20

6.7.1 SetGageZero()
6.7.2 SetGageSpan()
6.7.3 SetGageTare()
6.7.4 GetGageCal()
6.7.5 SetGageCal()

Calibration

7.1

Overview . . . . . . . . . . . . . . . . . . . . . . 22

7.1.1 User-supplied References
7.1.2 Calibrate()

7.2

Calibration Procedure . . . . . . . . . . . 22

7.2.1 Order of Calibration
7.2.2 Calibration Process

Smart A/D™ Theory of Operation

8.1

Firmware . . . . . . . . . . . . . . . . . . . . . . 23

8.1.1 Digitizer
8.1.2 Cruncher
8.1.3 Command Processor

8.2

Analog Circuits . . . . . . . . . . . . . . . . . 23

8.2.1 Measurement Section
8.2.2 Excitation Section

Smart A/D™ Timing

9.1

Overview . . . . . . . . . . . . . . . . . . . . . . 24

9.2

Slot Time . . . . . . . . . . . . . . . . . . . . . . 24

9.3

Update Rate. . . . . . . . . . . . . . . . . . . . 24

9.3.1 Primary Influences
9.3.2 Secondary Influences

9.4

Data Age . . . . . . . . . . . . . . . . . . . . . . 25

9.4.1 Example

9.5

Communication Latency . . . . . . . . . 25

Specifications

10.1

General Specifications . . . . . . . . . . . 26

10.2

Sensor Specifications . . . . . . . . . . . . 27

This manual is related to the following products: