User manual

DLM4000_Bed_Anleitung_v1.2_oce_eng.doc; 16.06.2009; M.Billmann; 6/13
3 Description
The DLM4000 is a DC link monitoring unit with two independent indicators,
red flashing LEDs and analog display to confirm if high DC voltage is
present. Both indicators share one box and a pair of high voltage cables that
must be attached to the DC link before energy is present.
The unit needs no additional power supply, it is operated and supplied from
the DC link voltage from 16V
DC
to 3,500V
DC
(permanent, 4kV for < 20msec)
3.1 Intended Usage
This unit is designed for industrial use in electronic laboratories and test
benches of power electronics, only.
This unit indicates for qualified personal whether dangerous voltages are still
present at a DC link, or the DC link is discharged down to a safe level.
Warning
- Never use one instrument only.
- Always check with redundant systems.
- Never rely on one indication when others show danger!
Use this unit in dry and suitable clean areas only and provide sufficient
cooling.
3.2 Safety
This section is for your safety. Please read this section carefully before
operating the DLM4000.
Qualified personal
The DML4000 may only be started and operated by qualified personal.
Qualified is, who
- has suitable technical training
and
- has got technical instruction from a trained user or the manufacturer
concerning the start up and the operation of the DLM4000
and
- has access to this manual at any time.
Reservations of the manufacturer
Maintenance and service may only be fulfilled by qualified service personal
with suitable technical training. There are no serviceable components inside
the main case of the DLM4000. Always disconnect all energy sources when
electrical or mechanical service is applied. Spare parts as well as tools must
meet the technical demands of the manufacturer. For preservation of
warranty only original replacement parts must be used.
Technical details may change without notice.