AC Parameter Digital Panel Meter, N20Z

Description PRODUCT DESCRIPTION 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. Parameters of the N20Z meter: 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 LPConfig program. 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. SPECIFICATIONS Measuring ranges INPUTS: Measuring range of Un voltage: 1…100…120 V 2.5… 250…300 V 4… 400…480 V input resistance > 2 MΩ Measuring range of In current: 0.01… 1…1.2 A 0.05… 5…6 A input resistance 50 mΩ ± 10% input resistance 10 mΩ ± 10% Frequency measusurement: (in voltage range 24… 480 V) 20… 500 Hz input resistance > 2 MΩ Preheating time 30 min. Intrinsic error (at manufacturer settings): – voltage and current ± (0.5% of the range ±1 digit) in the frequency interval 20… 500 Hz – frequency ± (0.02% of the range ±1 digit) Additional errors in rated operating conditions: – from ambient temperature changes (50% of the intrinsic error/10K) Averaging time: – voltage, current (programmable) min 0.5s (1s by default) – frequency (not programmable) 1s Alarm outputs outputs of O/C type (30 V, 20 mA), Passive outputs acc. to EN 62053-31 Rated operating conditions: – supply voltage 85…253 V a.c. (45…65 Hz) or d.c. 20…40 V a.c. (45…65 Hz) or d.c. – ambient temperature – 10…23…55ºC – storage temperature – 25… 85ºC – relative air humidity < 95% (condensation inadmissible) – working position any Sustained overload capacity 120% Un, 120% In Short duration overload capacity (3 s): – voltage input 2 Un (< 1000 V) – current input 10 In Readout field 5-digit three-colour LED display: – digit height: 14 mm, – colours: green, orange, red, – indication range: -19999…99999 Ensured protection level from frontal side IP 65 acc. to EN 60529 Dimensions 96 x 48 x 64 mm (with terminals) Panel cut-out dimensions 92 0.6 x 45 0.6 mm Weight < 0.25 kg Power consumption < 6 VA Electromagnetic compatibility: – noise immunity acc. to EN 61000-6-2 – noise emission acc. to EN 61000-6-4 Safety requirements acc. to PN-EN 61010-1: – isolation between circuits basic – installation category III (for 400 V execution – category II) – pollution degree 2 – maximal phase-to-earth working voltage:   – for supply circuit 300 V – for measuring input 600 V – category II 600 V – category II – for input destined for programming 50 V