Electrical Connections; Mains Connection - HBM DMP41 Operating Manual

4

Electrical connections

DMP41
4.1

Mains connection

The NT040 power supply is designed for a 115/230 V connection.
The power supply fan is temperature-controlled and is automatically
switched on only when necessary. The DMP41 must be connected to a
socket with a grounding protective conductor using the supplied mains
cable.
The power supply is protected internally with a 4 A/T fine-wire fuse.
Important
The mains fuse may only be replaced by HBM service personnel!
Mains cable
If you need to replace the mains cable, order a new one with ordering num­
è
ber 1-KAB274-... ( also see Chapter 3.3 "Scope of supply", Page 18), or
make sure that you use an equivalent cable.
Grounding switch
In the factory settings, the grounding switch connects supply voltage zero
with the protective conductor. If external devices (transducer, computer)
have already set up this connection resulting in ground loops (hum-pick­
ups), the grounding switch must be opened.
Important
A back-up battery (type: CR2032 lithium) is integrated into the DMP41. This
battery may only be replaced by HBM service personnel!
A03470_07_E00_00 HBM: public
Electrical connections
Mains connection
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