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Fluke 117 [5/20] Basic maintenance
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Digital Multimeters
Basic Maintenance
5
Function Range Resolution
Accuracy
± ([% of Reading] + [Counts])
Model
Hz (V or A input)
[2]
99.99 Hz
999.9 Hz
9.999 kHz
50.00 kHz
0.01 Hz
0.1 Hz
0.001 kHz
0.01 kHz
0.1 % + 2 115, 117
Notes:
[1] All ac ranges except Auto-V LoZ are specified from 1 % to 100 % of range. Auto-V LoZ is specified from 0.0 V. Because inputs below 1 % of range are
not specified, it is normal for this and other true-rms meters to display non-zero readings when the test leads are disconnected from a circuit or are
shorted together. For volts, crest factor of ≤3 at 4000 counts, decreasing linearly to 1.5 at full scale. For amps, crest factor of ≤3. AC volts is ac-
coupled. Auto-V LoZ, AC mV, and AC amps are dc-coupled.
[2] AC Volts Hz is ac-coupled and specified from 5 Hz to 50 kHz. AC Amps Hz is dc-coupled and specified from 45 Hz to 5 kHz.
[3] >10 A unspecified.
Table 3. Input Characteristics
Function Input Impedance (Nominal)
Common Mode Rejection Ratio
(1 kΩ Unbalanced)
Normal Mode Rejection
Volts AC >5 MΩ <100 pF >60 dB at dc, 50 or 60 Hz
Volts DC >10 MΩ <100 pF >100 dB at dc, 50 or 60 Hz >60 dB at 50 or 60 Hz
Auto-V LoZ ~3 kΩ <500 pF >60 dB at dc, 50 or 60 Hz
Open Circuit Test Voltage Full Scale Voltage Short Circuit Current
To 6.0 MΩ 40 MΩ
Ohms <2.7 V dc
<0.7 V dc <0.9 V dc
<350 μA
Diode Test <2.7 V dc 2.000 V dc <1.2 mA
Basic Maintenance
Testing the Fuse (115 & 117 only)
To test the fuse:
1. Set the rotary switch to
Ω.
2. Plug a test lead into the v jack and touch the probe to the 10A jack, as shown in Figure 1.
If the display shows a resistance value in the range of that shown in Figure 1, the fuse is good.
If the display reads 0L, replace the fuse and test again.
If the display shows any other value, have the Meter serviced. See “Contact Information” earlier in this document.
HOLD MIN MA X RANGE
10 A
FUSED
COM
V
A
Lo / H
OFF
Hz
Hz
AUTO-V
LoZ
Volt
Alert
A
A
V
V
mV
VoltA le rt
TRUE RMS MULTIMETER
117
<.5
OK
OK
erc010f.emf
Figure 1. Fuse Testing
Содержание
- 115 116 and 117 1
- 115 116 and 117 calibration information 1
- Calibration information 1
- Contact information 1
- Digital multimeters 1
- Introduction 1
- Safety information 2
- Xw warnings and precautions 2
- Digital multimeters international electrical symbols 3
- General specifications 3
- International electrical symbols 3
- Table 1 lists the international symbols that appear in this document and on the meter 3
- 115 116 and 117 calibration information 4
- Table 2 accuracy specifications 4
- Basic maintenance 5
- Digital multimeters basic maintenance 5
- Figure 1 fuse testing 5
- If the display reads 0l replace the fuse and test again 5
- If the display shows a resistance value in the range of that shown in figure 1 the fuse is good 5
- If the display shows any other value have the meter serviced see contact information earlier in this document 5
- Plug a test lead into the v jack and touch the probe to the 10a jack as shown in figure 1 5
- Set the rotary switch to 5
- Table 3 input characteristics 5
- Testing the fuse 115 117 only 5
- Testing the fuse 115 117 only to test the fuse 5
- Replacing the battery and fuse 6
- Xw warning 6
- Cleaning the meter 7
- Cleaning the meter wipe the case with a damp cloth and mild detergent do not use abrasives or solvents dirt or moisture in the terminals can affect readings 7
- Digital multimeters performance tests 7
- In the performance tests the meter is referred to as the unit under test uut 7
- Performance tests 7
- Required equipment 7
- Required equipment table 4 lists the equipment required to conduct a performance test on the meter 7
- The following performance tests verify the complete operation of the meter and check the accuracy of each meter function against its specifications the recommended calibration interval is 12 months if the meter fails any part of the test calibration adjustment and or repair is indicated 7
- To avoid electric shock do not perform the performance test procedures unless the meter is fully assembled 7
- Xw warning 7
- Backlight test 8
- Keypad test 8
- Preparing for the performance tests 8
- Testing the display 8
- Xw warning 8
- Allow the temperature of the uut to stabilize at room temperature 23 c 5 c 73 f 9 f 9
- Apply the input level for each step listed in table 5 9
- Check the fuses and battery and replace them if necessary refer to testing the fuses and replacing the battery and fuse 9
- Compare the reading on the meter display with the display reading in table 5 9
- Connect the calibrator to the v ω and com input terminals on the meter 9
- If the display reading falls outside of the range shown in table 5 the meter requires calibration adjustment or repair 9
- Testing temperature 116 only 9
- Testing temperature 116 only connect the k type thermocouple to the temperature input of the meter and temperature calibrator to ensure an accurate measurement the meter and the thermocouple connector must be at the same temperature after connecting the thermocouple to the meter allow the junctions to stabilize before recording the displayed reading this can take several minutes depending on temperature gradients 9
- To verify the accuracy of the dmm functions do the following 9
- Turn the rotary switch to the function listed in each step of table 5 9
- Warm up the calibrator as required by its specifications 9
- 115 116 and 117 calibration information 10
- Set calibrator to standby reconfigure leads and program for amps output 10
- Testing the voltalert function 117 only 11
- Calibration adjustment 12
- Calibration adjustment password 12
- Changing the password 12
- Restoring the default password 13
- Xw warning 13
- Calibration adjustment procedure 14
- Meter buttons used in the calibration steps 14
- Digital multimeters calibration adjustment 15
- If the calibration adjustment procedure is not properly completed the meter will not operate correctly 15
- Notes set the calibrator to standby prior to changing the function switch position and after completing adjustment of each function 15
- 115 116 and 117 calibration information 16
- Digital multimeters replacement parts 17
- Figure 6 exploded view of meter 17
- Replacement parts 17
- Table 7 lists the meter s replaceable parts identified in figure 6 17
- 115 116 and 117 calibration information 18
- Battery primary mno2 zn 9v 505mah 6lr61 alkaline 17x26x48mm bulk 19
- Digital multimeters warranty 19
- Warranty 19
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