The digital multimeters METRAport 40S are suitable for universal use in general electrical engineering, electronics, and automotive service.
RMS Value with Distorted Waveshape
The utilized measuring method allows for waveshape independent TRMS AC measurement for voltage and current at up to 10 kHz.
Automatic / Manual Measuring Range Selection
Measured quantities are selected with the rotary switch. The measuring range is automatically matched to the measured values. The measuring range can be selected manually as well with the help of the AUTO/MAN key. Direct current measurement in all ranges via a single socket: measurement cable does not have to be replugged. Clip-on current measurement is performed via a separate socket.
Automatic Storage of Measured Values
The DATA function allows for storage of the digitally displayed measured value. A special process assures that random values are not saved to memory in the case of rapidly changing measured quantities but rather the actual measured value. The stored measured value appears on the digital display. The analog display continues to read out the current measured value.
Storage of Min-Max Values
In addition to displaying the current measured value, the minimum or maximum value can be continuously refreshed and saved to memory.
Continuity and Diode Testing, Ik = 1 mA
This function can be used to test the polarity of diodes and to test electrical circuits for short circuits and interruptions. The test voltage source makes it possible to measure LEDs and reference diodes with up to 5.1 V. In addition to the display, an acoustic signal is generated during continuity testing of resistors within a range of 0 to 2Ω.
Duty Cycle Measurement - Measurement of 5 V Square-Wave Signals
This function makes it possible to test circuits and transmission cables by measuring the frequency and the duty cycle of pulses with amplitudes of 2 to 5 V and frequencies of 100 Hz to 10 kHz.
Battery Charging Status - Power Saving Circuit
The battery charging status is indicated by means of a symbol with four different levels. The device is switched off automatically if the measured value remains unchanged for a period of 10 minutes and if none of the controls are activated during this time. The automatic shutdown can be deactivated by switching the instrument to continuous operation.
Auto-Fuse and Fuse Detection for all Current Ranges
User-friendly thanks to resettable auto-fuses. Fuse detection: The FUSE message is displayed in order to indicate that the auto-fuse has blown. The fuse interrupts the current measuring ranges only. All other ranges remain functional.
Applications
METRAport 40S digital multimeters are very well suited for universal use in general electrical engineering, electronics applications, and automotive service. Ideal reading angle adjustment is made possible by the tilt stand, and when suspended from the neck strap, both hands are free for performing measurements. The instrument is switched off automatically when folded and closed, and the display and the control panel are protected against damage.