Home
Главная
Fluke
Мультиметры (тестеры)
753
Руководство по калибровке Страница: 6

Fluke 753 Руководство по калибровке онлайн [6/52] 328997

753/754

Calibration Manual

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

Fluke 753 Руководство по калибровке онлайн [6/52] 328997

Содержание

Похожие устройства