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Maintenance 9
Agilent N1913A/1914A EPM Series Power Meters User’s Guide 207
Operator Maintenance
This section describes how to replace the power line fuse and clean the
power meter. If you need additional information about replacing parts or
repairing the power meter, refer to the
EPM Series Power Meter Service Guide
.
To clean the power meter, disconnect its supply power and wipe with a
damp cloth only.
The power line fuse is located within the power meter’s fuse holder
assembly on the rear panel. For all voltages, the power meter uses a
250 V, T2.5 H, 20 mm slow blow fuse with high breaking capacity.
Replacing the Power Line Fuse
1 Slide the fuse holder assembly from the rear panel as shown in
Figure 9- 3.
2 Install the correct fuses in the respective “In line” positions as shown
in Figure 9- 3. (The N1913A/1914A requires two fuses.)
3 Replace the fuse holder assembly in the rear panel.
Figure 9-3 Replacing the fuses
NOTE
The power meter also has an internal fuse. If you suspect that this fuse needs to be
replaced, it must be done by trained service personnel. Please refer to “Returning Your
Power Meter for Service” on page 212.
In-line Fuse
- Agilent N1913/1914A 1
- EPM Series Power 1
- Certification 3
- General Warranty 3
- Warranty Service 3
- Limitation of Warranty 4
- Exclusive Remedies 4
- Restricted Rights Legend 5
- Technology Licenses 5
- Safety Summary 6
- Safety Notices 6
- Safety Symbols 7
- General Safety Information 8
- In This Guide 10
- 9 Maintenance 11
- Contents 13
- 9 Maintenance 15
- List of Figures 17
- indicator 137 19
- indicator 161 20
- List of Tables 21
- Specifications 25
- Introduction 1 27
- 1 Introduction 28
- The Display Layout 32
- Window Symbols and Pop-ups 35
- Wait Symbol Pop-up 36
- Confirm Symbol Pop-up 36
- Numeric Entry Pop-up 36
- Text Entry Pop-up 37
- List Pop-up 37
- Rear Panel Connections 38
- Using the Remote Front Panel 43
- Capturing the Screen Image 47
- Getting the Instrument Data 48
- Making Socket Connection 49
- HP 436A, HP 437B, and SCPI 51
- HP 438A, and SCPI 51
- General Power Meter Functions 53
- Setting the Resolution 56
- Making Relative Measurements 57
- Relative indicator 58
- Setting Offsets 59
- Setting Channel Offsets 60
- Setting Display Offsets 61
- Selected window/ 62
- Offset value field 62
- Offset setting field 62
- up window 68
- Setting Measurement Averaging 71
- Step Detection 73
- Measuring Pulsed Signals 74
- Power Sweep Mode 77
- Frequency Sweep Mode 81
- Setting Measurement Limits 84
- Setting Limits 85
- Checking for Limit Failures 87
- Numeric Format 88
- Single Function Measurement 89
- Combined Measurement 90
- Max Hold/Min Hold 91
- Recorder Output 94
- Save/Recall 97
- Editing a Register’s Name 98
- Recalling a Measurement Setup 98
- Zeroing the Power Meter 99
- Zero/Cal Lockout 100
- Calibration 101
- Blank Screen 106
- Secure Blank 107
- Backlight Intensity Control 112
- Memory Erase/Secure Erase 113
- Secure Erase 114
- Figure 2-58 Warning pop-up 115
- VGA Output (Optional) 116
- Warm Start 117
- Running Under Battery Power 118
- Battery Menu 119
- Battery Status Display 120
- Low Power Battery Condition 120
- Display Backlight Control 121
- Battery General Information 122
- Running Time 123
- Setting the Cable Short/Long 124
- Agilent Technologies 125
- Introduction 126
- Power Meter Configuration 127
- Default Channel Setup 128
- Measurement Accuracy 129
- Procedure 130
- CDMA Signal Measurements 133
- Multitone Signal Measurements 134
- Measuring TDMA Signals 135
- Setting the Range 138
- Measurement Considerations 139
- Accuracy 140
- Speed and Averaging 140
- to complete the entry 156
- Calibration Factor 156
- Sensor Calibration Tables 158
- Insert Char 163
- Delete Char 163
- display mode is chosen, the 180
- Sensor Table 2 Selected 183
- Number of Averages 192
- Sensor Dynamic Range 192
- High Power Path 192
- Low Power Path 192
- Expected Power 192
- Calibrating 209
- Zero+Cal 211
- FDO Table Editing 211
- Reference Manual 212
- Maintenance 213
- Self Test 214
- Instrument Self Test 215
- Remote Testing 216
- Test Descriptions 216
- Real Time Clock (RTC) Battery 217
- Channel CW Path 217
- Error Indicator 218
- Error Queue Message 219
- Error Message List 220
- do not correspond in length 223
- Operator Maintenance 229
- Check the Basics 231
- Instrument serial numbers 231
- MADE IN MALAYSIA 232
- Erasing Memory Data 233
- Conditions 239
- Power Meter Specifications 240
- Power Sensor Specifications 241
- Zero Drift of Sensors 245
- Measurement Noise 245
- Settling Time 249
- Measurement Characteristics 254
- Line Power 255
- 1 mW Power Reference 256
- Environmental Conditions 257
- Physical Characteristics 258
- Regulatory Information 259
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