ISOMETER® isoNAV685-D-B Insulation monitoring device for offline monitoring of de-energised loads data info

ISOMETER® isoNAV685-D-B Insulation monitoring device for offline monitoring Device features • ISOMETER® to monitor the insulation resistance in de-energised systems. • Automatic adaptation to the existing system leakage capacitance. • AMPPlus measurement method • An adjustable response value in the range 10 kfi...1 MO (factory setting = 50 kfi). • High-resolution graphic LC display for excellent readability and recording of the device status. • Earth connection monitoring. • Automatic device self test. • Graphical representation of the insulation resistance over time (isoGraph) • History memory...

AC/DC Interfaces Standards • Communication protocol Modbus TCP • BCOM for Bender device communication via Ethernet • Integrated web server for reading out measured values and for parameter setting The isoNAV685 series uses the patented AMPPlus measurement method. This measurement method allows concise monitoring of modern power supply systems, also in case of extensive, directly connected DC components and high system leakage capacitances. The ISOMETER® has been developed in compliance with the following standards: Operating elements yy [jog] [jooj] [ooj] [jooj] The LED "ON" lights when the device...

2 - Supply voltage Us (see nameplate) via 6 A fuse 3 - Connection to the IT system to be monitored (L1/+, L2, L3/-) 5 - (K1) Alarm relay 1, available changeover contacts 6 - (K2) Alarm relay 2, available changeover contacts 7 - Switchable resistor R for RS-485 bus termination Note: According to DIN VDE 0100-430, devices for protection against a short-circuit can be omitted for the coupling of terminals L1/+, L2, L3/-to the IT system < 690 V to be monitored if the wiring is carried out in such a manner as to reduce the risk of a short-circuit to a minimum. (Recommendation: Ensure short-circuit-proof...

Connection to frequency inverters for monitoring in offline mode Digital interface X1 Digital interface Input 1 Input 2 Input 3 RS-485 A RS-485 B +24 V Output 1 Output 2 not used Ground Deactivate Device high active TEST RESET +24 V + Q1 Q2 M+ active adjustable passive adjustable Danger of damage to property due to faulty connections! The device can be damaged if the unit is simultaneously connected to the supply voltage via the X1 interface and via A1/+, A2/-. Do not connect the device simultaneously via X1 and A1/+, A2/- to different supply voltages. Danger of damage to property due to incorrect...

Insulation coordination according to IEC 60664-1/IEC 60664-3 Rated voltage Overvoltage category Rated impulse voltage: Indication graphic display 127 x 127 pixels, 40 x 40 mm 21 Display range measured value 0.1 kO.20 MO Operating uncertainty (according to IEC 61557-8) ±15 %, at least ±1 kO SERVICE yellow Rated insulation voltage: Pollution degree for accessible parts on the outside of the device housing (Un < 690 V) 3 Pollution degree for accessible parts on the outside of the device housing (Un >690 < 1000 V) 2 Cable length X1 (unshielded cable) < 10 m Cable length X1 (shielded cable, shield...

Technical data (continuation) Environment/EMC Ambient temperatures: Classification of climatic conditions acc. to IEC 60721: Stationary use (IEC 60721-3-3) 3K23 (except condensation and formation of ice) Classification of mechanical conditions acc. to IEC 60721: Operating mode continuous operation display oriented, cooling slots must be ventilated vertically 5) Degree of protection internal components Degree of protection terminals Screw fixing Enclosure material Flammability class ANSI code Documentation number 3 x M4 with mounting clip Connection type pluggable screw-type terminal or push-wire...

Ordering information Nominal system voltage range Un Dimension diagram 11 included in the scope of delivery Suitable measuring instruments on request! R.BENDER The Power in Electrical Safety0 Bender GmbH & Co. KG Londorfer StraBe 65 • 35305 GrGnberg • Germany Tel.: +49 6401 807-0 • [email protected] • www.bender.de