Digital Multimeter HDM3055 Series Manual

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WARNING Product Grounding

The instrument is a Class 1 product and is provided with a grounding-type power cord set.

The instrument chassis and cover are connected to the instrument's electrical ground to

minimize shock hazards.

The ground pin of the cord set plug must be firmly connected to the electrical ground

(safety ground) of the terminal at the power outlet. Any interruption of the protective earth

(grounding) conductor or disconnection of the protective earth terminal will cause a

potential shock hazard that could result in personal injury or death.

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Connect Power and I/O Cables

Connect the power cord, LAN, GPIB, RS232/485, or USB cable as desired.

The instrument's default measurement function is DC Voltage (DCV), with auto-ranging enabled.

Power Switch

Press the power switch in the lower left corner of the front panel. If the instrument does not turn on,

verify that the power cord is firmly connected, that the fuse is good, and that the line voltage selector

is set correctly, as described above. Also, make sure that the instrument is connected to an energized

power source.

To turn off the instrument, press and hold the power switch for about 500 ms. This prevents you from

accidentally turning off the instrument by brushing against the power switch.

NOTE If you turn off the instrument by disconnecting power (this is not recommended), the instrument

turns on as soon as you re-apply power. You will not need to press the power switch.

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Adjust the Carrying Handle

The handle has five positions, shown below.

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To adjust the handle position, grasp the sides of the handle, pull outward, and rotate the handle.

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Use Built-in Help System

The built-in help system provides context-sensitive help on any front panel key or menu softkey.

A list of help topics is also available to help you learn about the instrument.

View the help information for a front panel key

Press and hold any softkey or button, such as [Display].

If the message contains more information than will fit on the display, press the down arrow softkey to scroll down.

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Add Help Example Picture

Press Done to exit Help.

View the list of help topics  

Press to view the list of help topics. Press the arrow softkeys or use the front panel arrow keys

to highlight the desired topic. Then press Select.

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In this case, the following help topic appears:

View the list of recent instrument errors.

Press  and choose View instrument errors from the list of help topics.

This displays the instrument's error queue, which includes up to 20 errors.

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Continuous Modes

The multimeter can operate in the continuous mode as described below.

Continuous Mode

Continuous mode is the default mode for all HDM series DMMs. With the factory default settings,

the DMM continuously makes DCV measurements with auto-range and autozero on, NPLC set to

10 PLCs, etc.

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Front Panel Menu Reference

The following table summarizes the front panel keys and the menu structure.