Need help?Do you have a question about the HP 3468A and is the answer not in the manual?
Your new 3468A is a fully programmable HP-IL digital multimeter.
This Operators Manual has been designed with you the operator in mind.
In this chapter you will learn to use those features to solve your measurement needs.
The Operating Characteristics of the 3468A are detailed in Table 2-1.
The goal of this chapter is to provide easy to find answers to the vast majority of questions.
The autozero key allows the user to selectively enable or disable the internal zeroing technique.
One of the many features of the 3468A is electronic calibration.
Your 3468A has the capability of measuring DC or True RMS AC Currents up to 3 amps.
Another of the unique features of the 3468A is the 12 character alphanumeric display.
There are several reasons why you would want to optimize the rate at which readings are taken.
Selecting the proper range on the 3468A may be done either automatically or manually.
Figure 2-3 illustrates the 3468A rear panel.
The 3468A is capable of measuring resistance from .1 milli-ohm to 30 Megohms.
The 3468A self test performs several checks on the digital and A/D converter circuitry.
Triggering is simply the process that causes the 3468A to take a reading.
Whether you use your 3468A on the bench or as part of a sophisticated test system, most measurements will be voltage.
In this chapter you will learn about remote programming your 3468A over the Hewlett-Packard Interface Loop (HP-IL).
The Hewlett-Packard Interface Loop (HP-IL) is a two wire serial interface.
With the 3468A in the remote mode and the only device in the loop, we can start sending commands.
Now lets see how to transfer the measurement from the 3468A to the calculator.
Commands like IND, OUTA, or REMOTE were used. These commands are called Interface Control Operations.
Another important feature of the 3468A is you can program it to interrupt the controller.
In this chapter you will learn about remote programming your 3468A using a computer / controller.
Lets look at a simple example that displays your name on the 3468A display.
Command codes are used to cause the 3468A to change states.
The 3468A has the ability to talk to the computer or other instruments.
So far we have seen how to program the 3468A for specific operations.
The LOCAL 901 message clears the 3468A from the REMOTE operation mode.
Your 3468A Digital Multimeter was thoughtfully engineered for ease of use.
Table 5-1 lists the available accessories for your 3468A.
Your 3468A was carefully inspected before it left the factory.
General safety precautions must be adhered to during all phases of operation of the 3468A.
When the 3468A is calibrated, careful note should be taken of the ambient temperature.
The Amps terminal fuse is located physically inside the Amps (A) terminal.
If at any time you suspect that the 3468A is malfunctioning, perform the self test.
Hewlett-Packard Company certifies that this product met its published specifications.
Disconnect the 3468A from its ac power source before cleaning.
Hewlett-Packard Interface Loop (HP-IL) is a two wire interface.
The interface loop consists of a calculator/controller and up to 30 peripheral devices.
Each device in the loop may possess one or more of the three basic device capabilities.
The following paragraphs define the terms and concepts used to describe HP-IL system operations.
The following table lists the HP-IL functional subsets that the 3468A responds to.
General| Interface | HP-IB (IEEE-488) |
|---|---|
| Category | Multimeter |
| Manufacturer | HP (Hewlett-Packard) |
| DC Voltage Range | 0 to 1000 V |
| AC Voltage Range | 0 to 750 V |
| Resistance Range | 0.1 Ω to 30 MOhm |
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