Installation - 3

If the open sense lead protection circuit detects an open sense lead, the Prot annunciator on the front panel turns on and the output turns off. Bit 5 in the Questionable Status Registers is also set (see chapter 7 under "Programming the Status Registers"). On the front panel, press the Prot key, and one of the following error messages will be reported on the front panel:

Message Description

+sense open Positive sense or load lead is open

-sense open Negative sense or load lead is open

+/- sense open Both positive and negative sense or load leads are open

sense open Incorrect resistance reading on the sense or load leads. This may be caused by an external power source paralleled with the output, or in rare instances, by the voltage being out of calibration.

The default setting for the open sense lead protection circuit is disabled or OFF. This is because applications that apply an external voltage to the output or that use external disconnect relays may interfere with the operation of the open sense detect circuit. If you are using external voltages or relays, you can enable the open sense detect at the beginning of the test procedure. Make sure that the external voltage is disabled and that any relays are in the closed position. Perform the remote sense check by cycling the output off, then on. Then disable the open sense detect circuit and continue using the unit.

Local Sensing

Local sensing is not recommended for optimal performance. You must use the remote sense connections on both the main output (output 1) and on output 2 for the unit to operate properly and meet its published specifications. If you are not using remote sensing and the open sense protection feature is ON, you must jumper the + output 1 pin to its + sense pin, and jumper the - output 1 pin to its - sense pin. Otherwise, the unit will go into a protected state with the output disabled.

♦Keep load leads as short as possible. Load leads cannot exceed 18 inches (per side) when local sensing.

♦Bundle or twist the leads tightly together to minimize inductance.

♦Jumper the + output 1 pin to its + sense pin, and the - output 1 pin to its - sense pin.

OUTPUT 1/OUTPUT 2

CONNECTOR

-S - + +S

JUMPER

TWIST LEADS

EACH LEAD MUST

BE LESS THAN 20

INCHES IN LENGTH

+

LOAD

_

WIRE RESISTANCE

Figure 3-6. Local Sensing

37

Page 36 Page 38
Page 37
Image 37
Agilent Technologies 66311B, 66309B, 66111A manual Local Sensing, Message Description
Page 36 Page 38

66111A, 66309B, 66311B, D specifications

Agilent Technologies D,c,83440b is an advanced electronic measurement solution designed for engineers and scientists who require precise and reliable performance in their testing environments. This modular test system offers a comprehensive suite of features that cater to a wide range of applications, from high-frequency testing to complex signal analysis.

One of the main features of the D,c,83440b is its impressive frequency range, allowing users to conduct tests across a wide spectrum of signals. The system is capable of handling frequencies up to 26.5 GHz, making it ideal for RF and microwave applications. This broad range ensures that users can work with a variety of devices, including communication systems, radar, and satellite technology.

In addition to its frequency capabilities, Agilent Technologies has engineered the D,c,83440b with exceptional dynamic range and low noise figures. This ensures that even the smallest signals can be accurately measured, allowing for greater precision in testing. The full spectrum analysis feature enables users to capture transient events and analyze them in real-time, which is crucial for troubleshooting and performance evaluations.

The D,c,83440b is built on a modular platform, allowing users to customize their systems according to specific testing needs. This modularity not only enhances flexibility but also simplifies maintenance and upgrades. Users can easily swap out different modules without the need for extensive system reconfiguration, which can significantly reduce downtime in testing environments.

Another standout characteristic of the D,c,83440b is its user-friendly interface. With a large, high-resolution display and intuitive controls, engineers can quickly navigate through settings and data, streamlining the testing process. This ease of use is complemented by powerful software solutions that can automate test sequences, aiding in efficiency and accuracy.

The integration of advanced digital signal processing technologies further enhances the capabilities of the D,c,83440b. These technologies enable more sophisticated measurements and improved signal integrity, which is essential for modern communication systems.

In summary, the Agilent Technologies D,c,83440b is a multifaceted electronic measurement solution that boasts a wide frequency range, excellent dynamic range, modular design, and user-friendly interface. This combination of features makes it suitable for various applications, ensuring that engineers and scientists have the tools they need to succeed in their testing and measurement endeavors.
Top Page Image Contents