Analogue instruments - Circutor

Analogue instrumentsMEG-1000Insulation resistance meterDescription}}Does not need an auxiliary power supply}}DIN box, with dimensions: 96x96}}Class 1.5}}Neutral insulated or impedance systems(IT network)ApplicationFeaturesInput circuitConsumptionFrequencyOverloadsAccuracyAmbient conditions5 V·A20 ... 100 Hz1.2 U npermanent2 U nduring 5 s1.5 % FSMEG-1000 measures and controls the insulationresistance between phase and earthin a neutral insulated or impedance line (IT),with the use of relays. The insulation resistancecan be displayed with a galvanometricindicator located on the front of the unit.To carry out the measurements, the unit appliesa continuous voltage of 24 V betweenthe phase and earth, measuring the leakagecurrent circulating through the network insulationresistors. This current determines theinsulation resistance.The unit has two timed output relays, oneacts as the maximum (triggered when theinsulation resistance is lower than a determinedvalue). In both relays, the trip pointand connection delay time can be adjustedwith potentiometers located on the back ofthe unit.Operating temperature + 10 ... +30 ºCLimit temperature - 25 ... + 40 ºCAltitude2000 mBuild featuresDimensionsSee the following tableWeightSee the following tableType of boxpanelTerminal protection degree IP 00Box protection degree IP 52Weight0.35 kgInsulation voltage2 kV, during 1 min, between the mechanism and the boxStandardsBS 89, EN 60051, IEC 144, UL 94, DIN 43780, IEC 51, UNE 21318When the insulation resistor is within themaximum and minimum values defined withthe potentiometers, the NORMAL LED will belit on the front panel. When the resistor is outof the margins defined, either exceeding ornot reaching the normal levels, the ALARMLED will be lit on the front panel.M1-59