SOUTHERN POLYTECHNIC S. U. ELECTRICAL & COMPUTER ENGINEERING TECHNOLOGY
ECET 1011–Laboratory Exercise # 11 Multi-meter Calibration
Name Lab Section Date
Overview and Introduction:
This laboratory’s focus is for you to finish assembling your multi-meter. Make certain to clear
enough space on the lab bench so as not to have any equipment in danger of the solder iron. Be
sure to ask questions and remember that the time is running out to finish your multi-meter by the
end of the term! Also, be sure to bring your assembly and instruction manual (of which most of
this lab is derived) along with all associated parts that came with your multi-meter kit. If you are
missing any components, remedy this ASAP! In addition, you will need the HP3612 Power
Supply and a Fluke 189 Digital MultiMeter (DMM) to perform a variety of test measurements
and assist in calibrating your own personal multi-meter.
Procedure:
Your ability to measure and record your data in a neat and organized manner is important.
Start a habit of being professional by using a lab notebook and generating tables.
1. Along with guidance from your laboratory instructor and assistant(s), follow the instructions
in your multi-meter manual to finish your multi-meter assembly. Don’t close the multi-meter
yet!
2. LCD Test
With no test leads connected to the meter, move the selector switch around the dial. You
should obtain the following readings. A negative (-) sign may also be present or blinking.
a) DCV Range: 200m 0 0.0 d) DCA,10A Ranges: 200µ 0 0.0
2000m 0 0 0 2000µ 0 0 0
20 0.0 0 20m 0.0 0
200 0 0.0 200m 0 0.0
1000 0 0 0 10A 0.0 0
b) ACV Range: 200 0 0.0 e) hFE Range hFE 0 0 0
750 0 0 0
c) Ohms and Diode: B indicates blank.
200 1 B B.B
2000 1 B B B
20k 1 B.B B
200k 1 B B.B
2000k 1 B B B
Diode 1 B B B
