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Original — December 1991
UM4.6:CS6003
Glossary-9
DESCR Abbreviation: Descriptor
Deviation Usually, the difference between setpoint and process variable. More
generally, any departure from a desired or expected value or pattern.
Deviation Alarm
An alarm that signals a specified amount of difference exists between
two monitored values; usually the process variable and the set point.
Device A piece of electronic hardware that performs one or more prescribed
functions.
DH Acronym: Data Historian
DI Acronym: Discrete Input
Diagnostics One or more programs in a computer or microprocessor that can detect
and pinpoint a configuration error or a hardware fault. Also, the utility or
functionality such programs add to a product.
Digital to Analog Converter (DAC or D/A)
An electronic circuit (usually an IC) that converts a digital signal ( digital
data) into an analog signal of corresponding value.
Digital Signal Processing
The arithmetic processing (such as filtering or amplification) of real–time
signals which are sampled at regular intervals and digitized.
Digital Volt Meter (DVM)
A test instrument that measures voltage, current, or resistance, and
gives numerical readings.
DIO Acronym: Discrete Input/Output
DIP Acronym: Dual In-line Package
Direct Control Point (DCP)
A regulatory controller point type which provides control for continuous
processes. A DCP is a collection of setpoint, process variable, and valve
position values along with tuning parameters for a control loop.
Direct Digital Control Mode (DDC)
A loop control mode: a process-control computer or a computer program,
a unit point, or a logic control point directly sets the output of a control
loop.
Direct Memory Access (DMA)
A method of directly transferring data in and out of memory. DMA is
used when a device can transmit data faster than a CPU can input the
data and store it in memory. A DMA controller is used to control the
storage of data into memory instead of the CPU. This permits a very fast
data transfer rate.
DES - Dir
Glossary
- Using and Maintaining the 1
- Type CS6003 Calibrator 1
- Documentation Map 3
- Appendixes 8
- Contents 10
- Original — December 1991 10
- UM4.6:CS6003 10
- Section Tab Guide 11
- 1 Introduction 13
- 1.5 Related Documents 14
- 1.6 Manual Conventions 15
- 1-4 Introduction 16
- 2 Using the Calibrator 17
- 2.2.1 Cables 18
- 2.2.2 Front Panel 18
- Using the Calibrator 19
- 2.2.2.7 Breakout Terminals 20
- 2.2.2.11 Numerical Display 20
- 2.2.2.12 Family Switches 21
- 2.2.2.13 Group Mode Switches 21
- 2.2.2.14 CHK MOM Switch 21
- 2.2.2.15 CARD IDENT Switch 21
- 2.2.2.16 Mode Switches 21
- 2.2.2.17 Status Indicator 22
- 2.2.2.18 Data Switches 22
- 2.3 Operating the Calibrator 23
- 2.3.4.1 Lamp Test 24
- 2.3.4.2 Procedures 24
- ± 0.1% ± 1 count 25
- ± 0.002 Vdc 25
- ± 0.0005 mV 25
- ± 0.005 ohms 26
- ± 0.01 ohms 26
- 3 Card Removal, Cleaning, and 27
- Installation 27
- 3.3 Circuit Card Cleaning 28
- 3.4 Corrosion 29
- 4 Input and Output Card 31
- 4.1.1.2 Equipment Required 32
- 4.1.1.3 Calibration Procedure 32
- Input and Output Card 33
- (Isolated) 34
- X00606–A 35
- 4.1.3.1 Overview 39
- 4-10 Input and Output Card 40
- Figure 4-3. RTD Input Card 40
- R2, and R3 for the RTD card 40
- 4.1.3.2 Equipment Required 41
- 4.1.3.3 Calibration Procedure 41
- 1. Zero adjustment 43
- 2. Span adjustment 43
- 4.1.4.1 Overview 44
- 4-15Input and Output Cards 45
- 4.1.4.2 Equipment Required 46
- 4.1.4.3 Calibration Procedure 46
- Input Cards 48
- 4.1.5.1 Overview 49
- 4.1.5.2 Equipment Required 49
- 4.1.5.3 Calibration Procedure 50
- 4.1.6.1 Overview 50
- 4.1.6.2 Equipment Required 51
- 4.1.7.1 Overview 54
- 4.1.7.2 Equipment Required 54
- 4.1.7.3 Calibration Procedure 54
- Input and Output Cards 56
- X00613–A 57
- 4.1.8.2 Overview 60
- 4.1.8.3 Equipment Required 60
- 4.1.8.4 Calibration Procedure 60
- Current Output Cards 61
- 4.2.1.2 Equipment Required 62
- 4.2.1.3 Calibration Procedure 62
- 1. 0=OFF; 1=ON 64
- X00616–A 65
- REMOVE W1 FOR 65
- MOMENTARY OPTION 65
- 4.2.3.2 External Relay Panel 74
- 4.2.3.3 Switch Settings 74
- 4.2.3.4 Overview 74
- 4.2.3.5 Equipment Required 74
- 4.2.3.6 Calibration Procedure 75
- 4-48 Input and Output Cards 78
- 5 Controller Cards 79
- 5.1.1 MPU Card 80
- 5.1.2 Process I/O Card 83
- 5.2.1 MPU Card 85
- 5.2.1.2 Calibration Procedure 86
- 5.2.2 Process I/O Card 88
- 5.2.2.2 Calibration Procedure 89
- 5.3.1 Equipment Required 92
- 5.3.2 Calibration Procedure 92
- 5.4.1 Equipment Required 94
- 5.4.2 Calibration Procedure 95
- 5.5.1 Equipment Required 97
- 5.5.2 Calibration Procedure 97
- (with Dual Current Output) 99
- 5.6.2 Calibration Procedure 100
- ± 0.01 volts dc 101
- ± 0.02 volts dc. If not, the 101
- Manual Control Cards 102
- 5.7.2 Calibration Procedure 103
- 5.8.1 Equipment Required 104
- Conversion Card 105
- 5.9.2 Calibration Procedure 106
- Controller Cards 107
- ± 0.015 volts dc. If 108
- 5.10.1 Equipment Required 110
- 5.10.2 Calibration Procedure 110
- 5.10.3 Functional Test 111
- ± 0.08 volts 112
- 5.11.1 Equipment Required 114
- 5.11.2 Calibration Procedure 114
- 6 Data Highway Cards 115
- 6.1.2 Calibration Procedure 116
- ± 0.050 volts 117
- ± 0.002 volts dc 117
- ± 0.005 volts dc. If not 117
- Devices)(PN41B0985) 118
- 6.2.2 Calibration Procedure 119
- ± 0.010 volts 120
- ± 0.050 volts dc on the 120
- Appendix A 121
- Maintaining the Calibrator 121
- A.3 Lamp Test 122
- A.4 Fan and Filter 122
- Glossary 123
- DM6461, DM6462, DM6463, Using 159
- Document by Number 159
- UM4.6:CS6003, 1-1 159
- Reader’s Evaluation 167
- 1712 CENTRE CREEK DR 168
- AUSTIN TX 78754–9971 168
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