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Fluke 125B/S Calibration Guide - Page 47

Diode Zero, Gain, Table 16. Ohm Gain Calibration Points

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Industrial ScopeMeter Calibration Adjustment 13. Set the Calibrator to 0 V (zero). Table 16. Ohm Gain Calibration Points Gain Ohm (CL 0507) Gain Ohm (CL 0508) Gain Ohm (CL 0509) Gain Ohm (CL 0510) Gain Ohm (CL 0511) Gain Ohm (CL 0512) Gain Ohm (CL 0513) Calibration Step 50 Ω 0.5 kΩ 5 kΩ 50 kΩ 500 kΩ 5 MΩ 30 MΩ Input Value Diode Zero, Gain To do the Capacitance Gain calibration: 1. Push  to select calibration adjustment step Diode Zero (CL 0520):IDLE. 2. Connect the Test Tool to the Calibrator as shown in Figure 13. A B 5522A CALIBRATOR Figure 13. Capacitance Gain Calibration Input Connections 3. Set up the Calibrator: a. Supply 0 mV DC. b. Push . 4. On the Test Tool: a. Push  to start the calibration. b. Wait for Diode Zero (CL 0520):READY to show on the display. c. Push  to select calibration adjustment step Gain Diode (CL 0521):IDLE. 5. Set the Calibrator to supply 1.25 V DC. 6. Push  to start the calibration. 7. Wait until Gain Diode (CL 0521):READY shows on the display. 39

Section	Page
123B/124B/125B	1
LIMITED WARRANTY AND LIMITATION OF LIABILITY	2
Table of Contents	3
List of Tables	5
List of Figures	7
Introduction	9
How to Contact Fluke	9
Safety Information	10
Specifications	12
Dual Input Oscilloscope	12
Cursor Readout (124B, 125B)	16
Power Quality (125B)	17
Field Bus Measurements (125B)	17
Miscellaneous	18
Environmental	18
Required Equipment	20
Performance Verification	20
Test Preparation	20
Input A and Input B Tests	21
Input A and Input B Base Line Jump Test	21
Input A Trigger Sensitivity Test	23
Input A Frequency Response Upper Transition Point Test	24
Input A Frequency Measurement Accuracy Test	24
Input B Frequency Measurement Accuracy Test	25
Input B Frequency Response Upper Transition Point Test	26
Input B Trigger Sensitivity Test	26
Input A and Input B Trigger Level and Trigger Slope Test	27
Input A and Input B DC Voltage Accuracy Test	30
Input A and Input B AC Voltage Accuracy Test	32
Input A and Input B AC Input Coupling Test	33
Input A and Input B Volts Peak Measurements Test	33
Input A and B Phase Measurements Test	35
Harmonics Test (125B)	35
Input A and B High Voltage AC/DC Accuracy Test	36
Resistance Measurements Test	38
Continuity Function Test	38
Diode Function Test	39
Capacitance Measurements Test	39
LED, Beeper, LCD, and Front Panel Functional Checks	40
WiFi Functional Check (Version Dependent)	40
Calibration Adjustment	41
Calibration Number and Date	41
Start the Calibration Adjustment	41
Warm Up and Pre-Calibration	42
Final Calibration	42
Delta T Gain, LF- HF Gain Input, Filter, A & B	42
Position, Input A and B	44
Pulse Adjust Input B	44
Gain DMM (Gain Volt)	45
Diode Zero, Gain	47
Capacitance Clamp and Zero	48
Capacitance Gain	48
Save Calibration Data and Exit	48
Test Tool Disassembly	49
Battery Pack Removal	49
Bail Removal	50
Open the Test Tool	51
Main PCA, Keypad, and Keypad Foil Removal	52
Display Assembly Removal	52
Maintenance	52
How to Clean	52
Storage	52
Battery Replacement	52