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Fluke 725 [11/72] Introduction
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1
Multifunction Process Calibrator
Introduction
Your Fluke 725 Multifunction Process Calibrator (referred
to as “the calibrator”) is a handheld, battery-operated
instrument that measures and sources electrical and
physical parameters. See Table 1.
In addition to the functions in Table 1, the calibrator has
the following features and functions:
• A split-screen display. The upper display allows you
to measure volts, current, and pressure only. The
lower display allows you to measure and source
volts, current, pressure, resistance temperature
detectors, thermocouples, frequency, and ohms.
• Calibrates a transmitter using the split-screen.
• A thermocouple (TC) input/output terminal and
internal isothermal block with automatic reference-
junction temperature compensation.
• Stores and recalls setups.
• Manual stepping and automatic stepping and
ramping.
• Controls the calibrator remotely from a PC running a
terminal emulator program.
Contacting Fluke
To order accessories, receive operating assistance, or
get the location of the nearest Fluke distributor or Service
Center, call:
USA: 1-888-99-FLUKE (1-888-993-5853)
Canada: 1-800-36-FLUKE (1-800-363-5853)
Europe: +31 402-675-200
Japan: +81-3-3434-0181
Singapore: +65-738-5655
Anywhere in the world: +1-425-446-5500
Or, visit Fluke's Web site at www.fluke.com.
Содержание
- Multifunction process calibrator 1
- Limited warranty and limitation of liability 2
- Table of contents 3
- Title page 3
- Contents 5
- List of tables 7
- Table title page 7
- Figure title page 9
- List of figures 9
- Contacting fluke 11
- Introduction 11
- Multifunction process calibrator 11
- Safety information 13
- Standard equipment 13
- Warning 14
- Caution 15
- Warning 15
- Figure 1 standard equipment 16
- Users manual 16
- 6 5 4 3 18
- Figure 2 input output terminals and connectors 18
- Figure 2 shows the calibrator input and output terminals table 3 explains their use 18
- Getting acquainted with the calibrator 18
- Input and output terminals 18
- Users manual 18
- Figure 3 keys 20
- Figure 3 shows the calibrator keys and table 4 explains their use 20
- Users manual 20
- Display 23
- Figure 4 elements of a typical display 23
- Figure 4 shows the elements of a typical display 23
- Getting acquainted with the calibrator 23
- Getting started 24
- Shut down mode 24
- Figure 5 voltage to voltage test 25
- Sh39f eps 25
- Shut down mode 25
- Contrast adjustment 26
- Current measurement with loop power 27
- Measuring electrical parameters upper display 27
- Using measure mode 27
- Figure 8 connections for supplying loop power 28
- Users manual 28
- Measuring electrical parameters lower display 29
- Measuring temperature 30
- Using thermocouples 30
- Figure 10 measuring temperature with a thermocouple 32
- Process temperature 32
- Tc miniplug 32
- Users manual 32
- Warning 30 v maximum to 32
- Using resistance temperature detectors rtds 33
- Figure 11 measuring temperature with an rtd measuring 2 3 and 4 wire resistance 35
- Rtd resistance to be measured 35
- Using measure mode 35
- Caution 36
- Measuring pressure 36
- Warning 36
- Zeroing with absolute pressure modules 37
- Differential module 38
- Figure 13 connections for measuring pressure 38
- Gage module 38
- Isolation valve 38
- Users manual 38
- Simulating a 4 to 20 ma transmitter 39
- Sourcing 4 to 20 ma 39
- Sourcing other electrical parameters 39
- Using source mode 39
- Figure 14 connections for simulating a 4 to 20 ma transmitter 40
- Users manual 40
- Figure 15 electrical sourcing connections 41
- Measure source measure 41
- Using source mode 41
- Simulating rtds 42
- Simulating thermocouples 42
- Color depends on type of tc 43
- Figure 16 connections for simulating a thermocouple 43
- Tc miniplug 43
- Using source mode 43
- Figure 17 connections for simulating 3 wire rtd 44
- Sensor terminals 44
- Users manual 44
- Caution 45
- Sourcing pressure 45
- Warning 45
- Manually stepping the ma output 47
- Setting 0 and 100 output parameters 47
- Stepping and ramping the output 47
- Auto ramping the output 48
- Storing and recalling setups 48
- Calibrating a transmitter 49
- Figure 19 calibrating a thermocouple transmitter 50
- Users manual 50
- Calibrating a pressure transmitter 51
- Figure 20 calibrating a pressure to current p i transmitter 52
- Hand pump 52
- Pressure module 52
- Users manual 52
- Calibrating an i p device 53
- Figure 21 calibrating a current to pressure i p transmitter 54
- Pressure module 54
- Users manual 54
- Testing an output device 55
- Key the calibrator will initialize with its remote port enabled the terminal emulator connected to the calibrator should be set up for 9600 baud no parity 8 data bits and 1 stop bit 56
- Remote control commands 56
- Table 8a remote control upper display 56
- Table 8b remote control lower display 56
- Terminates in a db 9 connector which plugs directly into a pc serial port a db 9 to db 25 adapter is required to connect to a pc 56
- The fluke 700sc serial interface cable assembly pn 667425 plugs into the pressure module connector and 56
- The remote control interface on the 725 is activated by turning the calibrator off then turning it on again while depressing the 56
- Users manual 56
- You can control the calibrator remotely from a pc running a terminal emulator program the remote control commands give access to all capabilities of the calibrator with the exception of pressure measurement see table 8a 8c for the remote commands and explanations 56
- Replacing the batteries 59
- Replacing the fuses 59
- Warning 59
- Cleaning the calibrator 60
- Maintenance 60
- Service center calibration or repair 60
- Replacement parts 61
- Figure 24 replacement parts 62
- Users manual 62
- Accessories 63
- External fluke pressure module compatibility 63
- Dc voltage measurement 66
- Dc voltage source 66
- Millivolt measurement and source 66
- Specifications 66
- Dc ma measurement and source 67
- Frequency measurement 67
- Ohms measurement 67
- Ohms source 67
- Frequency source 68
- Temperature thermocouples 68
- Loop power supply 69
- Rtd excitation simulation 69
- Temperature rtd ranges and accuracies its 90 69
- General specifications 70
- Pressure measurement 70
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