Manual Fluke 8808A (page 52 of 100) (English)

763940

Zoom out

Zoom in

1/100

8808A

Users Manual

3-18

After a function modifier is selected, pressing any function button turns off all modifiers,

causes the secondary display to go blank, and returns unmodified readings to the primary

display.

Relative Readings Modifier (REL)

The relative readings modifier displays the difference between the relative base and the

input measurement. For example, if the relative base is 15.000 V and the present input

measurement is 14.100 V, the display will show -0.900. Readings are shown on the

primary display.

XW Warning

To avoid electrical shock or damage to the Meter, do not touch

the input terminals or test leads during measurement. Relative

readings may not indicate the presence of dangerous voltages

at the input terminals or test leads.

Note

Relative readings modifier cannot be selected if the display shows 0L

(overload) or is blank.

To make a relative reading, press T to select the relative readings modifier. The last

valid reading taken is stored as the relative base, the primary display zeroes out, and

RELX is shown on the primary display. (The secondary display is unaffected.)

To edit the relative base, use the number editor as described in the “Using the Number

Editor” section later in this chapter.

Selecting the relative readings modifier turns off autoranging and locks the present range.

Make sure you are in the correct range before pressing T. If you press Uor V

after pressing T, the Meter exits the relative readings mode.

Decibels and Auto Power Modifier

The decibels modifier takes a voltage measurement, converts it to dBm (measure of

decibels relative to one milliwatt), and displays the result on the primary display.

Press dB to toggle in and out of the decibels modifier. When the decibels modifier is

selected, "dB" is shown on the primary display.

Decibels can be selected only when a voltage function is selected on the primary display

(volts ac, volts dc, or volts ac + dc). Decibels are always displayed in a single, fixed

range with 0.01 dB resolution. However, the basic measurement itself (volts ac for

example) autoranges.

A voltage measurement is converted to dBm using the following formula (value is the

measurement value):

⎟

⎠

⎞

⎜

⎝

⎛

*1000

log10

ref

Value

dBm

The reference impedance can be set to any of 21 reference impedances listed in Table 3-5

by using the list editor as described in the "Using the List Editor" section later in this

chapter.

Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

Forumrules

To achieve meaningful questions, we apply the following rules:

First, read the manual;
Check if your question has been asked previously;
Try to ask your question as clearly as possible;
Did you already try to solve the problem? Please mention this;
Is your problem solved by a visitor then let him/her know in this forum;
To give a response to a question or answer, do not use this form but click on the button 'reply to this question';
Your question will be posted here and emailed to our subscribers. Therefore, avoid filling in personal details.

new questions and answers
new manuals

You will receive an email to register for one or both of the options.

Get your user manual by e-mail

Enter your email address to receive the manual of Fluke 8808A in the language / languages: English as an attachment in your email.

The manual is 1,96 mb in size.

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Fluke 8808A

Fluke 8808A User Manual - German - 102 pages

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.

Info

Fluke 8808A Manual

Product: