Description; Selector Switch; Keypad; Display - Metrix MX 57 EX Manual De Instrucciones

Chapter II
2.

DESCRIPTION

This multimeter is one of the ASYC II (Advanced SafetY Concept, second generation) range,
designed for a high degree of user safety, maximum protection and unrivalled performance.
2.1.

Selector switch

This standalone, handheld professional measuring instrument is capable of measuring the
following quantities (accessed by the eight-position rotary selector switch) :
∗ AC voltages with AC (or RMS) capacitive coupling
∗ AC voltages with AC+DC (or TRMS) direct coupling
∗ DC voltages
∗ AC currents with AC (or RMS) capacitive coupling
∗ AC currents with AC+DC (or TRMS) direct coupling
∗ DC currents
∗ resistance values
∗ continuity (with beeper)
∗ capacitance
∗ diode threshold voltage
∗ frequencies
∗ duty cycles
∗ pulse counting
∗ pulse width
∗ dBm
∗ resistive power
∗ temperature
2.2.

Keypad

An nine-key keypad lets you :
∗ select the autoranging mode (RANGE)
∗ store a value (HOLD)
∗ measure fast peaks (PK+/-)
∗ set the measurement relative to a reference value (REL)
∗ select a function derived from the main function, or switch on the multimeter again after it
has been shut down automatically (SEL/ON)
∗ select time-domain measurements: frequency, duty cycle, stopwatch, pulse counter (Hz)
∗ activate the MIN- MAX- AVG detection mode (SURV)
∗ activate sending data to a printer or a computer (PRINT)
2.3.

Display

The display shows :
∗ clearly legible figures (14 mm high)
∗ an analogue readout of the parameter being measured through a 34-segment bargraph
∗ perform 50 000-point measurements (high resolution)
∗ perform 5 000-point measurements (low resolution)
2.4.

Power supply

It is powered by a standard 9 V (6LF22, 6LR61) battery which provides approximately
300 hours of operation (in V
specified (see §. 3.5.3. Replacing the battery or fuse).
2.5.

Input terminals

Measurements are performed using two measuring leads supplied with the instrument connected
to input terminals 1, 2, 3 and 4, as indicated in §. 3.1.
Intrinsically safe portable digital multimeter
mode). It is prohibited to use batteries other than those
DC
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