FLUKE-289 Fluke Electronics, FLUKE-289 Datasheet - Page 32

• Manufacturer Part Number: FLUKE-289
• Description: DMM TRUE RMS 50000CNT W/BCKLGHT
• Manufacturer: Fluke Electronics
• Series: 28xr
• Type: Digital (DMM)r

Specifications of FLUKE-289

• Includes: Battery, Clips, Test Leads
• Style: Handheld
• Display Digits: 4.5
• Display Type: LCD, Bar Graph
• Display Count: 50000
• Function: Voltage, Current, Resistance, Capacitance, Temperature, Frequency
• Functions, Extra: Continuity, dB
• Features: Data Logging, Hold, Memory, Min/Max/Ave
• Ranging: Auto/Manual
• Response: True RMS
• Lead Free Status / RoHS Status: Not applicable / RoHS non-compliant
• Other names: 289; 614-1062

287/289
Users Manual
Making Measurements
The following sections describe how to take measurements with
the Meter.
Measuring AC Voltage
The Meter displays ac voltage measurements as rms (root mean
square) readings. The rms value is the equivalent dc voltage that
would produce the same amount of heat in a resistance as the
measured voltage. True-rms readings are accurate for sine
waves and other wave forms (with no dc offset) such as square
waves, triangle waves, and staircase waves. For ac with dc
offset, refer to the “Measuring AC and DC Signals” section later
in this manual.
Rotate the Meter’s rotary switch to V or T and set up the Meter
to measure ac volts as shown in Figure 10.
The Meter’s ac volts function offers a number of modes to
provide more details about an ac signal. Pressing the softkey
labeled Menu opens a menu of items that can be used to modify
the basic ac voltage measurement. Refer to the appropriate
section in this manual to learn more about each menu item.
To clear all modes and return to the basic volts ac measurement,
press the softkey labeled Menu. Move the menu selector to the
item labeled VAC. Press the softkey labeled VAC to clear all
functions and modes.
22
08:10pm
0
Menu
123.45
Figure 10. AC Voltage Measurements
100
Save
200
300
400
VAC
03 / 13/ 06
Auto Range
Setup
500 VAC
Switch
Box
est07.eps