Omega Engineering OMB-DBK-34A, User Manual

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DBK Option Cards & Modules User’s Manual
Table of Contents
DBK Basics
Introduction……
DBK Basics
-1
How Do DBKs Connect? ……
DBK Basics
- 2
DBK Identification Tables …..
DBK Basics
-9
Tips on Setting up a Data Acquisition
System ……
DBK Basics
-12
Power Supplies & Connectors ……
DBK Basics
-14
An Introduction to Power-Related
DBKs ……
DBK Basics
-15
Power Requirements......
DBK Basics
-16
Calculating Your System’s Power
Needs ……
DBK Basics
-18
Additional Reading …..
DBK Basics
-21
1 - Signal Management
Signal Modes ...... 1-1
System Noise ...... 1-5
Using DBK Cards and Modules for Signal
Conditioning ...... 1-6
Channel Control and Expansion ...... 1-7
Signal Acquisition ...... 1-9
Sequencer ...... 1-9
Scan Rate ...... 1-10
Triggering ...... 1-10
Counter/Timer Functions ...... 1-11
Simultaneous Sample and Hold (SSH) ...... 1-11
Two-Point Calibration of a Temperature
Measurement System ...... 1-12
Overview ...... 1-12
An Example of Two-Point Calibration ...... 1-13
Calculation of Scale and Offset ...... 1-14
Implementing the Scale and Offset Constants in
DaqView ...... 1-14
Converting Degrees from Celsius to
Fahrenheit ...... 1-14
One Known Temperature Environment ...... 1-15
Use of a Temperature Calibrator ...... 1-15
CE Compliance ...... 1-15
CE Standards and Directives ...... 1-16
Safety Conditions ...... 1-16
Emissions/Immunity Conditions ...... 1-17
CE Enhancements for Existing Products ...... 1-17
2 – System Connections and Pinouts
Overview …… 2-1
P1 – DB37 for Analog I/O …… 2-3
P2 – DB37 for Digital I/O …… 2-4
P3 – DB37 for Pulse/Frequency/High-Speed
Digital I/O …… 2-5
P4 to P1, P2, P3 Correlation …… 2-6
Ground Tables – P4 to P1, P2, P3 …… 2-9
3 – DBK Set Up in DaqView
Overview …… 3-1
Setting Up Analog DBKs …… 3-5
Setting Up Digital DBKs …… 3-7
Setting Internal Clock Speed to 100 kHz …3-9
4 – DBK Set Up in LogView
Overview …… 4-1
Setting Up Analog DBKs …… 4-4
Setting Up Digital DBKs …… 4-7
5 – Troubleshooting
ESD Handling Notice …… 5-1
Troubleshooting Checklist……5-1
Frequently Asked Questions ……5-3
Customer Assistance……5-6
Dimensional Drawings
DBK Documents
DBK1, 16-Connector BNC Adapter Module
DBK2, 4-Channel Voltage Output Card
DBK4, 2-Channel Dynamic Signal Input Card
DBK5, 4-Channel Current Output Card
DBK7, 4-Ch. Frequency-To-Voltage Input Card
DBK8, 8-Channel High-Voltage Input Card
DBK9, 8-Channel RTD Card
DBK10, 3-Slot Expansion Chassis
DBK11A, Screw-Terminal & BNC Option Card
DBK15, Universal Current, Voltage Input Card
DBK16, 2-Channel Strain-Gage Card
DBK17, 4-Channel Simultaneous Sample and
Hold Card
DBK18, 4-Channel, Low-Pass Filter Card
DBK20 and DBK21, Digital I/O Cards
DBK23, Isolated Digital Input Chassis
DBK24, Isolated Digital Output Chassis
DBK25, 8-Channel Relay Output Card
DBK30A, Rechargeable Battery Module
DBK32A, Auxiliary Power Supply Card
DBK34A, UPS / Battery Module