Fluke 125B/S Calibration Guide - Page 33

Input A and Input B AC Input Coupling Test, Input A and Input B Volts Peak Measurements Test

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Industrial ScopeMeter Performance Verification Input A and Input B AC Input Coupling Test To test the Input A and B ac input coupling: 1. Connect the Test Tool to the Calibrator. See Figure 6. 2. Set up the Test Tool: a. Push . b. Push  to open the INPUT SETTINGS A menu and make these selections: • Select Coupling: AC • Readings: Smooth • Noise filter: OFF c. Push . d. Push  to open the INPUT SETTINGS B menu and make these selections: • Coupling: AC • Readings: Smooth • Noise filter: OFF 3. For each sensitivity value listed in Table 6: a. On the Test Tool, push  or  to set the Input A and Input B sensitivity. b. Set up the Calibrator: i. Supply the voltage and frequency listed in Table 6. ii. Push . c. Compare the Test Tool reading to the limit in Table 6. d. Set the Calibrator to 0 V (zero). Table 6. Input A and Input B AC Input Coupling Verification Points Calibrator Output V rms 500 mV 500 mV 500 mV Calibrator Frequency 10 Hz 33 Hz 60 Hz >344.0 >469.0 >486.5 Limit A-B Input A and Input B Volts Peak Measurements Test XW Warning To prevent possible electrical shock, fire, or personal injury, make sure that the calibrator is in standby mode before making any connection between the calibrator and the Test Tool. Dangerous voltages will be present on the calibration source and connecting cables during the following steps. To test the Input A and Input B volts peak measurements: 1. Connect the Test Tool to the Calibrator. See Figure 6. 2. Setup Peak for Input A on the Test Tool: a. Push to select auto ranging (AUTO shows at the top of the display). b. Push . c. Push  to open the INPUT A MEASUREMENTS menu. d. Select Peak and push  to open the Peak submenu. e. Select Peak Max-Min. 25

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Industrial ScopeMeter
Performance Verification
25
Input A and Input B AC Input Coupling Test
To test the Input A and B ac input coupling:
1.
Connect the Test Tool to the Calibrator. See Figure 6.
2.
Set up the Test Tool:
a.
Push
.
b.
Push
to open the INPUT SETTINGS A menu and make these selections:
•
Select Coupling:
AC
• Readings:
Smooth
•
Noise filter:
OFF
c.
Push
.
d.
Push
to open the INPUT SETTINGS B menu and make these selections:
• Coupling:
AC
• Readings:
Smooth
•
Noise filter:
OFF
3.
For each sensitivity value listed in Table 6:
a.
On the Test Tool, push
or
to set the Input A and Input B sensitivity.
b.
Set up the Calibrator:
i.
Supply the voltage and frequency listed in Table 6.
ii. Push
.
c.
Compare the Test Tool reading to the limit in Table 6.
d.
Set the Calibrator to 0 V (zero).
Input A and Input B Volts Peak Measurements Test
XW
Warning
To prevent possible electrical shock, fire, or personal injury, make sure that
the calibrator is in standby mode before making any connection between
the calibrator and the Test Tool. Dangerous voltages will be present on the
calibration source and connecting cables during the following steps.
To test the Input A and Input B volts peak measurements:
1.
Connect the Test Tool to the Calibrator. See Figure 6.
2.
Setup Peak for Input A on the Test Tool:
a.
Push
to select auto ranging (AUTO shows at the top of the display).
b.
Push
.
c.
Push
to open the INPUT A MEASUREMENTS menu.
d.
Select
Peak
and push
to open the Peak submenu.
e.
Select
Peak Max-Min
.
Table 6. Input A and Input B AC Input Coupling Verification Points
Calibrator
Output V rms
Calibrator Frequency
Limit A-B
500 mV
10 Hz
>344.0
500 mV
33 Hz
>469.0
500 mV
60 Hz
>486.5