User`s guide
Table Of Contents
- Legal Information
- Equipment Operation
- General Safety Considerations
- Regulatory Information
- List of Related Publications
- Agilent TechnologiesE4418B Options
- About this Guide
- Getting Started
- Power Meter Operation
- Introduction
- Battery Operation (Option 001)
- Zeroing and Calibrating the Power Meter
- Making Measurements with the AgilentE-Series Power Sensors
- Making Measurements with the Agilent8480 Series Power Sensors
- Making Measurements using Sensor Calibration Tables
- Making Measurements using Frequency Dependent Offset Tables
- Setting the Units of Measurement
- Selecting Units of Measurement from the Softkeys
- Making Relative Measurements
- Setting the Resolution
- Setting Offsets
- Setting Averaging
- Measuring Pulsed Signals
- Setting Measurement Limits
- Selecting a Digital or Analog Display
- Setting the Range
- Configuring the Remote Interface
- Recorder Output
- Saving and Recalling Power Meter Configurations
- How Measurements are Calculated
- Presetting the Power Meter
- Self Test
- Operator Maintenance
- Contacting Agilent Technologies
- Menu Reference
- Error Messages
- Specifications

Power Meter Operation
Setting Measurement Limits
Agilent E4418B User’s Guide 2-47
To set the TTL Output:
1. Press , , . The current settings for the
TTL Output are displayed under the , and
softkeys.
2. To select whether the TTL output reflects an overlimit condition,
under limit condition or both, press . Use any of the four
arrow keys to make a selection between , , and
on the pop up menu that appears.
3. To select whether a high or low level TTL output represents a
limits failure, use the softkey to toggle between
and
TTL Outputs can be disabled and re-enabled simply by pressing
.
Checking for Limit Failures
Limit failures are displayed in the appropriate field in the measurement
window on the power meter’s display as shown in Figure 2-14.
Note The same limit fail field is used by both channel and window
limits.
Meas
Setup
Limits TTL Output
TTL Output Limits
Fail O/P
Limits
OVER UNDER
EITHER
Fail O/P High
Low
TTL Output Off On
HP4402.book Page 47 Wednesday, November 29, 2000 4:46 PM