Lumel N30U User Manual

Also see for N30U: User Manual & Quick Start

Contents

Lumel N30U User Manual Manual pdf 5 page image

1. APPLICATION AND METER DESIGNThe N30U meter is a programmable digital panel meter destined formeasurements of signals originating from standard sensors destinedfor temperature measurements and for the measurement of analogstandard signals applied in automation. Additionally, the meter enablesthe indication of the current time. The readout field is a LED display,which allows the exposition of results in colours: red, green and orange.The measured input signal can be arbitrary converted by means of a21-point individual characteristic.Features of the N30U meter:l display colour individually programmed in three intervals,l programmable thresholds of displayed overflows,l 2 NOC relay alarms operating in 6 modes,l 2 switched relay alarms with a switching contact operatingin 6 modes (option),l signaling of measuring range overflow,l automatic setting of the decimal point,l programming of alarm and analog outputs with the reaction on theselected input quantity (main or auxiliary input),l real-time clock with the function of the clock supply support in caseof the meter supply decay,l programmed averaging time – function of walking window with theaveraging time up to 1 hour,l monitoring of set parameter values,l locking of introduced parameters by means of a password,l recount of the measured quantity on the base of the 21-pointindividual characteristic,l service of the interface with MODBUS protocol in theRTU mode (option),l conversion of the measured value into a standard – programmablecurrent or voltage signal (option),l highlight of any measuring unit acc. to the order,