4921230011I Monitoring of insulation resistance High or low ohms measurement Alarm on low insulation resistance Interchangeable scales AC or DC auxiliary voltage > DEIF A/S size="-2">

The AAL-111Q96 is used for supervision of the insulation resistance between an insulated low-voltage distribution network and earth cable/safety cable. The instrument is applicable in conjunction with single phase networks and 3-phase networks with/without neutral for voltages up to 440V AC. The AAL-111Q96 is CE marked for residential, commercial and light industry plus industrial environment. This type of insulation measurement is only carried out on AC networks where the neutral/star point of the generator or supply transformer is not earthed. The AAL-111Q96 is used for marine installations...

Max. one instrument per insulated network may be connected. If the network on the other hand is divided into a number of insulated networks, e.g. by means of transformers, one measurement may be carried out for each individual group. > If a periodical test function is required, this can be achieved as shown on the connection diagrams. If a value less than the preset limit value is selected as test resistance, alarm is obtained upon activation of the test button. Warning: If the installation is to be tested by means of a high-voltage "MEGGER", the measuring leads to the AAL-111Q96 at terminal...

Relay function Set point 22k /220k at scale centre - Accuracy: 5% of scale length - Reproduceability ѱ1% of scale length - Hysteresis: 2% of scale length - Temperature drift: Max. 0.2% of scale length per 10ѰC - Voltage drift: Max. 0.2% of scale length at U > s 20% - Response time: 0.1k /V: 1 s, 1k /V: 3 s - Indication: Red LED is lit when resistance is lower than set point Relay output: Change-over contact Contact rating: 250V - 2A - 400VA (AC). 250V - 1A - 50W (DC) Relay coupling: Normally energised General technical specifications Auxiliary voltage: 110 - 220 - 380 - 415 - 440V AC ѱ20%, 45..65Hz...