Unpacking And Inspection; Features - Amprobe AM-250 User Manual

CENELEC Directives
The instruments conform to CENELEC Low-voltage directive 2006/95/EC and
Electromagnetic compatibility directive 2004/108/EC

UNPACKING AND INSPECTION

Your shipping carton should include:
1 AM-270 Meter
1 Test Leads (1 pair)
1 K Type thermal couple with banana plug
1 Users Manual
1 Single Alkaline 9V battery; NEDA1604A, JIS6AM6 OR IEC6LF22(Installed)
If any of the items are damaged or missing, return the complete package to
the place of purchase for an exchange.

FEATURES

Analog Bar-graph
MS (Root-Mean-Square) is the term used to describe the effective or equivalent
DC value of an AC signal. Most digital multimeters use average sensing RMS
calibrated technique
Average Sensing RMS Calibrated
RMS (Root-Mean-Square) is the term used to describe the effective or equivalent
DC value of an AC signal. Most digital multimeters use average sensing RMS
calibrated technique to measure RMS values of AC signals. This technique is to
obtain the average value by rectifying and filtering the AC signal. The average
value is then scaled upward (calibrated) to read the RMS value of a sine wave. In
measuring pure sinusoidal waveform, this technique is fast, accurate, and cost
effective. In measuring non-sinusoidal waveforms, however, significant errors
can be introduced because of different scaling factors relating average to RMS
values.
True RMS
True RMS is a term which identifies a DMM that responds accurately to the
effective RMS value regardless of the waveforms such as: square, saw tooth,
triangle, pulse trains, spikes, as well as distorted waveforms with the presence
of harmonics. Harmonics may cause :
3