N20Z, AC Parameter Digital Panel Meter


The N20Z meter is a digital programmable panel instrument destined for measurements of a.c. voltages, a.c. currents, or frequency. The readout display is a LED display which enables the exposition of results in red, green or orange colour.

The device fulfills the requirements of III installation’s category for the products designed to industrial application – see the video presenting, how important it is.







  • input:
    – a.c. current: 1 A, 5 A,
    – a.c. voltage: 100 V, 250 V, 400 V
    – frequency: 20…500 Hz.
    • 2 alarm outputs of OC type (4 types of alarms) signaled by highlight of the alarm index,
    • protection level ensured by the housing: IP65,
    • readout field: 5 three-colour LED displays of 14 mm height,
    • highlighted measuring units,
    • supply: 85…253 V a.c./d.c. or 20…40 V a.c./d.c.
    • overall dimensions: 96 x 48 x 64 mm.

    For the configuration of the N20Z is destined LPConfigprogram. The meter must be connected with the PC computer through a PD14 converter.
    Parameters which can be reprogrammed are as follows:

    • display colour, individually in three intervals,
    • thresholds of displayed overflows,
    • display precision of the result (decimal point),
    • highlight of the unit,
    • kind of the measured signal a.c. or a.c. + d.c. (True RMS),
    • averaging time of the measurement,
    • recounting of indications (individual characteristic),
    • two alarms of OC type operating in six working modes.