ACD-330T Amprobe, ACD-330T Datasheet - Page 27
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ACD-330T
Manufacturer Part Number
ACD-330T
Description
DMM CLAMP-ON W/BACKLIGHT
Manufacturer
Amprobe
Type
Digital (DMM)r
Datasheet
1.ACD-330T.pdf
(42 pages)
Specifications of ACD-330T
Includes
Battery, Case, Test Leads
Style
Clamp
Display Digits
4
Display Type
LCD, Bar Graph
Function
Voltage, Current, Resistance, Frequency
Functions, Extra
Continuity, Diode Test
Features
Auto Off, Backlight, Hold, Min/Max/Ave
Ranging
Auto/Manual
Response
True RMS
Lead Free Status / RoHS Status
Contains lead / RoHS compliant by exemption
Display Count
-
Other names
2730749
controllers. The output current frequency is used to calculate the rotating speed of the
motor, while input current frequency is used to measure the frequency of the power line.
The frequency of the output current is important because the voltage frequency is often
meaningless for the calculations of motor controller speed.
1) Set the rotary switch to " A ".
Be sure the clamp jaws are securely closed, or measurements will not be accurate.
3) Observe the display for true RMS current.
4) Measure an output phase of the motor controller and press Hz button momentarily to
enter dual display mode. Then you will see the frequency reading be shown on small dig-
5) Press the MAX • MIN button for more than 1 second to record readings. To view read-
6) Press the MAX • MIN button for more than 1 second to exit recording.
You can measure input current, output current and frequency of adjustable speed motor
2) Clamp around an input or output phase (as required), and run motor at desired speed.
its. Nominal motor speed is calculated formula is shown below:
ings, momentarily press MAX • MIN button.
ADJUSTABLE SPEED MOTOR CONTROLLERS
RPM = 120 F/P
F: measured frequency.
P: number of pairs of motor poles
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