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Fluke 743B [47/134] Using resistance temperature detectors rtds
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Documenting Process Calibrator
Using Measure Mode
37
Using Resistance-Temperature Detectors
(RTDs)
The calibrator accepts RTD types shown in Table 6.
RTDs are characterized by their resistance at 0°C
(32°F), which is called the “ice point” or R
0
. The most
common R
0
is 100
Ω
. Most RTDs come in a three-
terminal configuration. The calibrator accepts RTD
measurement inputs in two-, three-, or four-wire
connections as shown in Figure 15. A four-wire
configuration provides the highest measurement
precision, and two-wire provides the lowest
measurement precision.
Table 6. RTD Types Accepted
RTD Type Ice Point (R
0
) Material α Range (°C)
Pt100 (3926) 100Ω Platinum 0.003926Ω/°C -200 to 630
*Pt100 (385) 100Ω Platinum 0.00385Ω/°C -200 to 800
Ni120 (672) 120Ω Nickel 0.00672Ω/°C -80 to 260
Pt200 (385) 200Ω Platinum 0.00385Ω/°C -200 to 630
Pt500 (385) 500Ω Platinum 0.00385Ω/°C -200 to 630
Pt1000 (385) 1000Ω Platinum 0.00385Ω/°C -200 to 630
Cu10 (427) 9.035Ω ** Copper 0.00427Ω/°C -100 to 260
Pt100 (3916) 100Ω Platinum 0.003916Ω/°C -200 to 630
*Per IEC 751-Standard **10Ω @ 25°C
Содержание
- B 743b 1
- B 743b users manual 1
- Documenting process calibrator 1
- Users manual 1
- Limited warranty limitation of liability 2
- Table of contents 3
- Title page 3
- B 743b 4
- Contents 5
- B 743b 6
- List of tables 7
- Table title page 7
- Figure title page 9
- List of figures 9
- B 743b 10
- Documenting process calibrator 11
- Introduction 11
- B 743b 12
- Standard equipment 14
- 1 red and 1 black 15
- 2 red and 2 black 15
- Ac20 test clip 15
- Documenting process calibrator standard equipment 15
- Figure 1 standard equipment 15
- Jumper 2 black 15
- Tl24 test leads 15
- Tp20 test probe 15
- B 743b 16
- Bc7210 battery charger 16
- Bp7217 nickel cadmium battery pack 16
- Figure 1 standard equipment cont 16
- Gj2f eps 16
- Users manual 16
- Safety information 17
- Getting started exercise 20
- Documenting process calibrator getting started exercise 21
- Figure 3 jumper connections for demonstration 21
- Figure 4 measure source example 21
- Gj3f eps 21
- Gj4s eps 21
- B 743b 22
- Figure 5 shows the calibrator input and output jacks table 2 explains their use 22
- Input and output jacks 22
- Operating features 22
- Documenting process calibrator operating features 23
- Figure 5 input output jacks and connectors 23
- Ki05f eps 23
- B 743b 24
- Choice 24
- Figure 6 keys 24
- Figure 6 shows the calibrator keys and table 3 explains their functions the softkeys are the four unmarked blue keys just below the display softkey functions are defined by the labels that appear above the softkey during operation softkey labels and other display text are shown in this manual in bold type for example 24
- Users manual 24
- Documenting process calibrator operating features 25
- B 743b 26
- Display 27
- B 743b 28
- Figure 7 elements of a typical display 28
- Users manual 28
- Setting up the calibrator 29
- Using the strap and bail 29
- Charging the battery 30
- Battery life 32
- Warning 32
- Preserving battery life 33
- Using the optional battery eliminator 33
- Adjusting the display contrast 34
- Displaying the date and time 34
- Selecting the display language 34
- Personalizing the calibrator 36
- Using the backlight 36
- Measurement ranges 38
- Measuring electrical parameters 38
- Using measure mode 38
- Documenting process calibrator using measure mode 39
- Figure 10 electrical measurement connections 39
- Measuring pressure 40
- Testing continuity 40
- Warning 40
- Differential module 43
- Documenting process calibrator using measure mode 43
- Figure 12 connections for measuring pressure 43
- Gage module 43
- Isolation valve 43
- Ki12c eps 43
- Measuring temperature 44
- Using thermocouples 44
- Documenting process calibrator using measure mode 45
- B 743b 46
- Figure 13 measuring temperature with a thermocouple 46
- Process temperature 46
- Tc miniplug 46
- Users manual 46
- V maximum to 46
- Warning 46
- Documenting process calibrator using measure mode 47
- Is 100 ω most rtds come in a three 47
- Terminal configuration the calibrator accepts rtd measurement inputs in two three or four wire connections as shown in figure 15 a four wire configuration provides the highest measurement precision and two wire provides the lowest measurement precision 47
- The calibrator accepts rtd types shown in table 6 rtds are characterized by their resistance at 0 c 32 f which is called the ice point or 47
- The most common 47
- Using resistance temperature detectors rtds 47
- B 743b 50
- Figure 15 measuring temperature with an rtd 50
- Gj15f eps 50
- Users manual 50
- Linear output transmitters 51
- Measurements in percent of scale 51
- Square law process variables 51
- Customizing mv input units 52
- Warning 52
- Damping your measurements 53
- Sourcing electrical parameters 54
- Using source mode 54
- Common 55
- Documenting process calibrator using source mode 55
- Figure 16 electrical sourcing connections 55
- Simulating a 4 to 20 ma transmitter 56
- Documenting process calibrator using source mode 57
- Figure 17 connections for simulating a 4 to 20 ma transmitter 57
- Loop power supply 57
- Ma ma v v rtd 57
- Meas source 57
- Setup ma 57
- Source 57
- Tc rtd 57
- Supplying loop power 58
- Documenting process calibrator using source mode 59
- Figure 18 connections for supplying loop power 59
- Ma ma v v rtd 59
- Meas source 59
- Setup ma 59
- Source 59
- Tc rtd 59
- V v hz 59
- Sourcing pressure 60
- Warning 60
- B 743b 62
- Figure 19 connections for sourcing pressure 62
- Hand pump 62
- Ma ma v v rtd 62
- Meas source 62
- Pressure module 62
- Setup ma 62
- Source 62
- Tc rtd 62
- Users manual 62
- Simulating thermocouples 63
- Simulating rtds 64
- Color depends on type of tc 65
- Documenting process calibrator using source mode 65
- Figure 20 connections for simulating a thermocouple 65
- Ma ma v v rtd 65
- Meas source 65
- Setup ma 65
- Source 65
- Tc miniplug 65
- Tc rtd 65
- V v hz 65
- B 743b 66
- Figure 21 connections for simulating an rtd 66
- Ps ps m in in 66
- Rtd transmitter 66
- Users manual 66
- Linear responding transmitters 67
- Sourcing in percent of scale 67
- Square law process variables 67
- Stepping and ramping the output value 68
- Using manual step 68
- Using auto step 69
- Ramping the output 70
- B 743b 72
- Figure 22 checking a relay output trip alarm 72
- Input 4 20 ma 72
- Ma ma v v rtd 72
- Meas source 72
- Setup ma 72
- Source 72
- Source ma 72
- Tc rtd 72
- Trip relay output 72
- Users manual 72
- Voltage trip detect 72
- Simultaneous measure source 73
- B 743b 74
- Documenting process calibrator simultaneous measure source 75
- Calibrating a process instrument 76
- Generating as found test data 76
- B 743b 78
- Figure 23 calibrating a thermocouple temperature transmitter 78
- Ma ma v v rtd 78
- Meas source 78
- Setup ma 78
- Source 78
- Tc miniplug 78
- Tc rtd 78
- Users manual 78
- V v hz 78
- Adjusting the transmitter 81
- As left test run 82
- Calibrating a delta pressure flow instrument 83
- Test comments 83
- Calibrating a limit switch 84
- Transmitter mode 87
- Warning 87
- Memory operations 89
- Saving results 89
- Data logging model 743b only 91
- Reviewing memory 91
- Clearing memory 94
- Recording min and max measurements 94
- Running a preloaded task 743b only 94
- Saving to and recalling from the registers 95
- Using the built in calculator 95
- Quick guide to applications 96
- Using the calculator to set the source value 96
- B 743b 98
- Figure 27 monitoring ac line voltage and frequency 98
- Ki27c eps 98
- Ma ma v v rtd 98
- Meas source 98
- Measure v 98
- Setup ma 98
- Source 98
- Tc rtd 98
- Users manual 98
- Documenting process calibrator quick guide to applications 99
- Figure 28 calibrating a current to pressure i p transmitter 99
- Ma ma v v rtd 99
- Meas source 99
- Measure pressure source ma loop power disabled 99
- Pressure module 99
- Setup ma 99
- Source 99
- Tc rtd 99
- V v hz 99
- B 743b 100
- Figure 29 measuring the output current of a transmitter 100
- Ma ma v v rtd 100
- Meas source 100
- Measure ma loop power disabled 100
- Original circuit wiring 100
- Power supply 100
- Setup ma 100
- Source 100
- Tc rtd 100
- Users manual 100
- V v hz 100
- B 743b 102
- Figure 32 checking a switch 102
- Figure 33 checking a tachometer 102
- Ma ma v v rtd 102
- Meas source 102
- Measure continuity 102
- Measure frequency 102
- Setup ma 102
- Source 102
- Tc rtd 102
- Users manual 102
- V max 30v max 102
- V v hz 102
- Documenting process calibrator quick guide to applications 103
- Figure 34 calibrating a pressure to current p i transmitter 103
- Hand pump 103
- Ma ma v v rtd 103
- Meas source 103
- Measure ma source pressure loop power enabled 24v 103
- Pressure module 103
- Setup ma 103
- Source 103
- Tc rtd 103
- V v hz 103
- B 743b 104
- Figure 35 calibrating a mv to current transmitter 104
- Users manual 104
- Documenting process calibrator quick guide to applications 105
- Figure 36 checking a vortex sheeding flowmeter 105
- Ma ma v v rtd 105
- Meas source 105
- Measure frequency 105
- Setup ma 105
- Source 105
- Tc rtd 105
- Communicating with a pc model 743 only 106
- Maintenance 106
- Replacing the battery pack 106
- Calibration data 107
- Cleaning the calibrator 107
- In case of difficulty 107
- Internal lithium backup battery 107
- Service center calibration or repair 108
- Replacement parts 109
- Accessories 110
- Specifications 112
- Dc voltage measurement 113
- Documenting process calibrator specifications 113
- Ac voltage measurement 114
- B 743b 114
- Dc current measurement 115
- Documenting process calibrator specifications 115
- Resistance measurement 115
- B 743b 116
- Continuity testing 116
- Frequency measurement 116
- Dc voltage output 117
- Documenting process calibrator specifications 117
- B 743b 118
- Dc current output 118
- Documenting process calibrator specifications 119
- Resistance sourcing 119
- B 743b 120
- Frequency sourcing 120
- Documenting process calibrator specifications 121
- Temperature thermocouples 121
- B 743b 122
- Temperature thermocouples cont 122
- Documenting process calibrator specifications 123
- Temperature thermocouples cont 123
- B 743b 124
- Temperature resistance temperature detectors 124
- Documenting process calibrator specifications 125
- Temperature resistance temperature detectors cont 125
- B 743b 126
- Loop power supply 126
- Documenting process calibrator specifications 127
- Top and bottom limits of ranges with auto range on 127
- B 743b 128
- Top and bottom limits of ranges with auto range on cont 128
- General specifications 129
- B 743b 130
- Figure 37 lcd operating environment specification 130
- Users manual 130
- B 743b 132
- B 743b 134
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