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Fluke 789 [20/44] Current measurement test
![Fluke 789 [20/44] Current measurement test](/views2/1436000/page20/bg14.png)
789/787B
Calibration Manual
16
Current Measurement Test
1. Put the calibrator in Standby (STBY) mode.
2. Put the UUT rotary switch in the
Wposition.
3. Connect the calibrator to the COM and mA terminals on the UUT as shown in
Figure 4.
4. Apply the values from the calibrator shown in Table 5 and compare the readings on
the UUT to the acceptable readings shown.
5. Connect the calibrator to the COM and A terminals on the UUT.
6. Apply the values from the calibrator shown in Table 6 and compare the readings on
the UUT to the acceptable readings shown.
7. Press J (BLUE) on the UUT to toggle to ac amps.
8. Apply the values from the calibrator shown in Table 7 and compare the readings on
the UUT to the acceptable readings shown.
0%
RANGE HOLD
REL
MIN MAX
Hz
100%
789
PROCESSMETER
POWER
I
O
0•
123
456
7 8 9
ENTER
M
k
m
V Hz
FIELD
EDIT
/
+
F
OPR EARTH EXGRD SCOPE MENU
PREV
SHIFT
RESET
CE
SETUP
REF
NEW
TC
MEAS
¡F
µ
n
p
W
dBm sec
¡CA
MULT
x
DIV
÷
MODES
MORE
STBY
HI
LO
TRIG
GUARD
TC
20A
NORMAL AUX
5520A CALIBRATOR
SCOPE
OUT
V, , ,
RTD
A, -SENSE,
AUX V
20V PK MAX
20V PK MAX
UUT
5522A
adm003F.EPS
Figure 4. Current Measurement Test Connections
Содержание
- 787b calibration manual 1
- Calibration manual 1
- Processmeter 1
- Warranty 2
- Table of contents 3
- Title page 3
- How to contact fluke 5
- Introduction 5
- Safety information 6
- Ac volts measurement 9
- All specifications apply from 18 c to 28 c unless stated otherwise 9
- All specifications assume a 5 minute warm up period 9
- Counts refers to the number of increments or decrements of the least significant digit 9
- Dc millivolts measurement 9
- Dc volts measurement 9
- Processmeter 9
- Specifications 9
- The standard specification interval is 1 year 9
- Ac current measurement 10
- Dc current measurement 10
- Frequency counter accuracy 10
- Ohms measurement 10
- Approximate trigger level 5 of full scale 11
- Frequency counter sensitivity 11
- Hz to 5 khz 11
- Input range 11
- Minimum sensitivity rms sinewave 11
- Mv 150 mv 50 hz to 5 khz 150 mv 11
- Processmeter 11
- Specifications 11
- Usable 0 hz to 20 khz with reduced sensitivity 1 11
- V 1 v 1 v 11
- V 4 v 4 v 11
- V 40 v 40 v 11
- V 400 v 400 v 11
- Vhz max 11
- Calibration manual 12
- General specifications 12
- Equipment and software required to perform the procedures in this manual are identified in table 2 13
- If the recommended equipment model is not available in some cases other equipment can be substituted as long as it meets the specifications indicated 13
- If you are using a different calibrator or dmm make the connections appropriate for that instrument 13
- Processmeter 13
- Required equipment 13
- To avoid safety hazards and equipment damage during the calibration procedure use the specified calibration equipment listed in table 2 using unspecified equipment can jeopardize the calibration verification test and pose safety hazards 13
- Unless otherwise indicated all connection diagrams for the calibration verification tests in this manual showing a calibrator or digital multimeter use a fluke 5522a calibrator fluke 8508a reference multimeter keysight 3458a dmm or equivalent 13
- Warning 13
- Basic maintenance 14
- Battery replacement 14
- How to clean 14
- Battery life 15
- Check and replace fuses 16
- Performance verification 16
- Preparation 17
- Loop power test 789 only 18
- Current sourcing test 19
- Position 19
- Current measurement test 20
- Apply 2 v dc from the calibrator 21
- Connect the calibrator to the com and 21
- Connect the current terminals of the multimeter to the com and 21
- Diode function test 21
- Figure 5 21
- Performance verification 21
- Position 21
- Press j blue to select diode test 21
- Processmeter 21
- Put the calibrator in standby stby mode 21
- Put the calibrator in standby stby mode then disconnect the calibrator from the 21
- Put the multimeter in the dc ma autorange function 21
- Terminals on the 21
- Terminals on the uut as shown in 21
- The multimeter should read close to 0 ma there is no tolerance specification for this current this test just makes sure that the diode test current source is operating 21
- The uut should read between 1 59 v and 2 41 v 21
- Turn the uut rotary switch in the 21
- Adm007f eps 22
- Calibration manual 22
- Figure 5 diode test connections 22
- Continuity function test 23
- Resistance measurement test 24
- Performance verification 25
- Processmeter 25
- Apply the values from the calibrator shown in table 9 and compare the readings on 26
- Connect the calibrator to the com and 26
- Dc millivolts measurement test 26
- Figure 8 26
- Position 26
- Put the calibrator in standby stby mode 26
- Put the uut rotary switch in the 26
- Terminals on the uut as shown in 26
- The uut to the acceptable readings shown 26
- Dc volts measurement tests 27
- Ac volts measurement test 28
- Always place the calibrator in the standby stby mode between tests and before handling the test connections or test cables 28
- Apply the values from the calibrator shown in table 11 and compare the readings on 28
- Connect the calibrator to the com and 28
- Figure 9 28
- Put the calibrator in standby stby mode 28
- Put the uut rotary switch in the s position 28
- Some of the calibration verification tests involve the use of high voltages and should be performed by qualified personnel only 28
- Terminals on the uut as shown in 28
- The uut to the acceptable readings shown 28
- To prevent possible electrical shock fire or personal injury 28
- Warning 28
- Frequency measurement test 29
- Calibration adjustment 30
- Preparation 30
- Ac voltage adjustment 31
- Procedure for models with firmware version 2 31
- Frequency adjustment 32
- Dc millivolts adjustment 33
- Dc voltage adjustment 33
- Diode adjustment 34
- Ohms adjustment 34
- Amps dc adjustment 35
- Milliamps dc adjustment 35
- Amps ac adjustment 36
- Milliamps output adjustment 36
- Calibration adjustment counter 37
- Calibration adjustment password 37
- How to change the password 37
- Procedure for models with firmware version 2 37
- Static awarenes 38
- Apply 6 v across the battery pads xbt1 and on the back of the pca see 39
- Beep if the beeper is enabled the default password is now restored 39
- C62 c69 39
- C66 c86 39
- Calibration adjustment 39
- Figure 10 39
- Figure 12 restoring the default password 39
- Firmware version 2 39
- How to restore the default password 39
- If the calibration password is forgotten the default password can be restored with these steps 39
- Processmeter 39
- R104 r107 c95 39
- R105 r116 39
- R110 c98 39
- R87 r90 39
- Remove the 6 v supply and install the shield and back case on the uut 39
- Remove the back case from the uut 39
- Remove the shield and leave the pca in the top case 39
- Short across the keypad on the back of the pca see figure 10 the uut should 39
- To avoid electrical shock or personal injury remove the test leads and any input signal before removing the back case from the uut 39
- Tp14 tp17 39
- Tp26 c64 39
- Turn the rotary switch from off to b 39
- Warning 39
- Calibration adjustment 40
- Meter keys used in the calibration steps 40
- Calibration adjustment 41
- Caution 41
- Processmeter 41
- Remove 1 a from uut promptly after storing calibration constant fuse will blow after 30 seconds 41
- Set the calibrator to standby prior to changing the function switch position and or after completing adjustment of each function if the calibration adjustment procedure is not completed correctly the uut will not operate correctly 41
- Calibration manual 42
- Figure 13 replacement parts 42
- Replacement parts and accessories 42
- Replacement parts and some accessories are shown in figure 13 and listed in table 14 many more dmm accessories are available from fluke for a catalog contact the nearest fluke distributor 42
- To find out how to order parts or accessories use the telephone numbers or addresses shown in contacting fluke 42
- To prevent possible electrical shock fire or personal injury use only 42
- Use only specified replacement fuses 42
- Use only specified replacement parts 42
- Warning 42
- Processmeter 43
- Replacement parts and accessories 43
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