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1. OVERVIEW
The C.A 5273 is a stand-alone portable digital multimeter specially designed to combine all the functions for measurement of
the following electrical quantities in a single instrument:
AC voltage measurement with low input impedance (voltage measurements for electrical and electrical engineering
applications)
AC or DC voltage measurement with high input impedance (voltage measurement for electronics)
Frequency
measurement
Resistance measurement
Audible continuity measurement
Measurement and testing of semiconductor junctions
Capacitance
measurement
AC or DC current measurement
Temperature measurement in C ° or F ° by linearisation of the voltage on the terminals of a K thermocouple.
1.1 The display
The multimeter's display allows users to:
Display the functions:
,
,
,
,
,
,
;
Show an analogue view of the measured parameter by means of the bargraph:
Read the data comfortably thanks to the backlighting.
Figure 1 : the display
N°. Function
1
Bargraph
2
Main display (values and measurement units)
3
Type of measurement
4
Selection of the measurement scale.
5 Low-battery
indicator
6
Audible continuity measurement
Measurement and testing of semiconductor junctions
7
Display of selected modes
8
Secondary display used for:
¾
voltage
measurement
¾
current
measurement
¾
temperature measurement
¾
MAX/MIN
modes
¾
frequency
measurement
9
Permanent mode: automatic instrument shut-down deactivated
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2
3
4
9
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