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Fluke 753 Руководство по калибровке онлайн [4/52] 328997
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753/754
Calibration Manual
ii
Frequency Source ...................................................................................... 21
Thermocouple Measure ............................................................................. 23
Thermocouple Source ............................................................................... 25
RTD Measure, Four-Wire ......................................................................... 26
RTD Measure, Three-Wire ....................................................................... 27
RTD Source ............................................................................................... 29
Loop Power ............................................................................................... 30
HART Mode Verification (754 Only) ............................................................... 30
Calibration ......................................................................................................... 32
Equipment Required for Calibration ............................................................. 32
Calibration Status Indicator ........................................................................... 32
How to Enter Calibration ............................................................................... 32
Calibration Constant Out of Bounds ............................................................. 33
How to Calibrate ....................................................................................... 33
Maintenance ....................................................................................................... 35
Battery Replacement ..................................................................................... 35
How to Clean the Product .............................................................................. 35
Calibration Data ............................................................................................. 36
In Case of Difficulty ...................................................................................... 36
Service Center Calibration or Repair ............................................................. 36
Replaceable Parts ............................................................................................... 37
Accessories ........................................................................................................ 41
Содержание
- 754 calibration manual 1
- Warranty 2
- Table of contents 3
- List of tables 5
- List of figures 7
- How to contact fluke 9
- Introduction 9
- Safety information 10
- Xw warning 10
- Connect the common test lead before the live test lead and remove the live test lead before the common test lead 11
- Do not touch the probes to a voltage source when the test leads are connected to the current terminals 11
- Do not use test leads if they are damaged examine the test leads for damaged insulation exposed metal or if the wear indicator shows check test lead continuity 11
- Documenting process calibrator 11
- Examine the case before you use the product look for cracks or missing plastic carefully look at the insulation around the terminals 11
- Symbols 11
- Symbols used on the product and in this manual are shown in table 1 11
- Use only cables with correct voltage ratings 11
- Use only current probes test leads and adapters supplied with the product 11
- Calibration manual 12
- Dc mv measurement 12
- Detailed specifications 12
- Environmental specifications 12
- General specifications 12
- Specifications 12
- Standards and agency approval specifications 12
- Ac voltage measurement 13
- Continuity testing 13
- Dc current measurement 13
- Dc voltage measurement 13
- Detailed specifications 13
- Documenting process calibrator 13
- Resistance measurement 13
- Calibration manual 14
- Dc current simulate external loop power 14
- Dc current source 14
- Dc voltage output 14
- Frequency measurement 14
- Resistance sourcing 14
- Detailed specifications 15
- Documenting process calibrator 15
- Frequency sourcing 15
- Temperature thermocouples 15
- Calibration manual 16
- Loop power 16
- Temperature resistance temperature detectors 16
- Documenting process calibrator 17
- Fluke recommends re certification each year to re certify do the verification procedure if test points are out of tolerance calibrate the product and then re verify two year specifications are included if the highest accuracy is not necessary 17
- Performance verification tests 17
- The equipment necessary for verification of the product is shown in table 2 if these instruments are not available you can replace them with other source and measure instruments that have the same the minimum specification requirements 17
- Use the subsequent tests to make sure that the product is inside its specification limits 17
- Verification equipment 17
- Dc volts measurement 18
- How to verify 18
- Documenting process calibrator 19
- Ac volts measurement 20
- Connect the uut to the 5522a as shown in figure 1 20
- Continue through the test points make sure to lock the uut on the specified range 20
- Push the range softkey on the uut to lock on the 3 v range 20
- See if the value shown on the uut is in the range shown in the applicable column 20
- Set the 5522a to the first test point in table 4 20
- Set the uut to the ac volts measurement function 20
- Stop to let the output become stable 20
- To verify the ac volts measurement function 20
- When you complete the test set the 5522a to standby 20
- Dc current measurement 21
- Connect the uut to the 5522a as shown in figure 3 22
- Continue through the test points make sure to lock the uut on the specified range 22
- Push the range softkey on the uut to lock on the 10 ω range 22
- Resistance measurement 22
- See if the value shown on the uut is in the range shown in the applicable column 22
- Set the 5522a to the first test point in table 6 22
- Set the uut to the resistance measurement function 22
- To verify the resistance measurement function 22
- Use a four wire connection at the 5522a transitioning to two wires at the uut and turn on two wire compensation 22
- When you complete the test set the 5522a to standby 22
- Documenting process calibrator 23
- Connect the uut as shown in figure 4 24
- Continue through the test points 24
- Frequency measurement 24
- See if the frequency value shown on the uut is in the range shown in the applicable column 24
- Select the 20 hz range for the first step use the 20 hz range thereafter 24
- Set the 5522a to the first test point in table 7 24
- Set the uut to the frequency measurement function 24
- To verify the frequency measurement function 24
- When you complete the test set the 5522a to standby 24
- Connect the uut to the 8508a as shown in figure 5 25
- Continue through the test points see if the value shown on the uut is in the range shown in the applicable column 25
- Dc volts source 25
- Documenting process calibrator 25
- See if the value shown on the 8508a is in the range shown in the applicable column in table 8 25
- Set the 8508a to measure dc volts 25
- Set the uut to the dc volts source function at 10 mv let the uut warm up for a minimum of 5 minutes before you read the first indication 25
- To verify the dc volts source function 25
- When you complete the test push on the uut two times to turn the source function off this conserves battery life 25
- Connect the uut to the 8508a as shown in figure 6 26
- Continue through the test points see if the value shown on the uut is in the range shown in the applicable column 26
- Dc current source 26
- See if the value shown on the 8508a is in the range shown in the applicable column in table 9 26
- Set the 8508a to dc current 26
- Set the uut to dc current source not simulate transmitter function at 2 ma 26
- To verify the dc current source function 26
- When you complete the test push on the uut two times to turn off the source function this conserves battery life 26
- Simulate transmitter function 27
- Resistance source function 28
- Connect the uut to the tektronix fca3000 counter as shown in figure 9 29
- Continue through the test points see if the value shown on the uut is in the range shown in the applicable column of table 12 29
- Documenting process calibrator 29
- Frequency source 29
- See if the value shown on the tektronix fca3000 is in the range shown in the applicable column in table 11 29
- Set the uut to source frequency 1 00 vpp square wave at 5 hz 29
- To verify the frequency source function 29
- Use the fluke 123 to examine the wave forms for the square wave a positive square wave with a 50 duty cycle 5 and 1 v peak amplitude see that the amplitude is correct for the applied signal for the sine wave make sure you have the correct frequency waveform and amplitude 29
- When you complete the test push on the uut two times to turn off the source function this conserves battery life 29
- Thermocouple measure 31
- Calibration manual 32
- Figure 10 temperature measure tc verification connections 32
- Continue through the test points see if the value shown on the uut is in the range shown in the applicable column in table 14 33
- Documenting process calibrator 33
- Note this test uses a type k thermocouple setting on the uut 33
- Set the 8508a to measure mv dc 33
- Set the uut to the thermocouple source function linear mode tc type k its 90 scale internal reference and c 33
- Source each of the temperatures in table 14 from the uut at each point correct the dmm measured voltage to do this add the millivolt equivalent of the type k junction at the lag bath temperature use the type k its 90 chart 33
- Stop for a minimum of 1 minute for thermal emfs caused by insertion of the connectors to dissipate and let the lag bath become stable for a minimum of 15 minutes 33
- Thermocouple source 33
- To verify the thermocouple source function 33
- Use type k thermocouple wire and copper wire to connect the 8508a to the uut tc jack as shown in figure 10 the 8508a is used in place of the 5522a the type k to copper junctions must be welded or made with tight screw terminals and submersed in the lag bath room temperature use the standard thermometer 0 accuracy to measure the temperature of the lag bath 33
- When you complete the test push on the uut two times to turn the source function off this conserves battery life 33
- Rtd measure four wire 34
- Rtd measure three wire 35
- Continue through the test points 36
- When you complete the test set the 5522a to standby 36
- 100w pt 385 37
- Connect the uut to the 8508a dmm as shown in figure 8 use a four wire connection transitioning to two wires at the uut 37
- Continue through the test points 37
- Documenting process calibrator 37
- Rtd source 37
- See if the value shown on the dmm is in the range shown in the applicable column in table 17 37
- Set the 8508a to 4 wire ohms auto range 37
- Set the uut to the rtd source function pt100 385 at 180 c its 90 scale 37
- To verify the rtd source function 37
- When you complete the test push on the uut two times to turn the source function off this conserves battery life 37
- Hart mode verification 754 only 38
- Loop power 38
- Calibration 40
- Calibration status indicator 40
- Equipment required for calibration 40
- How to enter calibration 40
- Calibration constant out of bounds 41
- How to calibrate 41
- Xw warning 42
- A message from 43
- Fluke corporation 43
- Static awareness 43
- Battery replacement 45
- How to clean the product 45
- Maintenance 45
- Xw warning 45
- Calibration data 46
- In case of difficulty 46
- Service center calibration or repair 46
- Xw warning 46
- Documenting process calibrator 47
- Replaceable parts 47
- Table 18 lists the customer replaceable parts replacement parts can be ordered from fluke corporation and its authorized representatives by using the part number in the event that the part ordered has been replaced by a new or improved part the replacement will be accompanied by an explanatory note and installation instructions if necessary see figure 16 47
- Documenting process calibrator 49
- Calibration manual 50
- Figure 16 parts 50
- Accessories 51
- Accessories for the product are listed in table 19 51
- Documenting process calibrator 51
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