NARDA NBM-550, Operating Manual

Page: 74 / 156

6 Measurements with the NBM-550 and EHP-50
64
NBM-550 Narda
6.1 General information
The EHP-50 Analyzer is a stand-alone measuring
instrument with remote operation. This operating manual
describes how measurements can be made using the
NBM-550 for operation of the EHP-50. Descriptions of
stand-alone operation and operation from a PC are found in
the Operating Manual for the EHP-50, which is included on
the EHP-TS CD-ROM as a PDF file.
EHP-50 versions supported
The NBM-550 only supports the functions of the EHP-50 for
versions EHP-50D and EHP-50F. The EHP-50D has a
restricted frequency range of 5 Hz to 100 kHz and does not
yet support the Weighted Peak method.
Selecting EHP-50 mode manually
When starting up, the NBM-550 recognizes an EHP-50
connected to it if this has already been switched on (see
“Connecting and setting up the EHP-50”
on page 26).
EHP-50 operating mode will be selected automatically after
initialization has completed successfully if there is no HF
probe connected to the NBM-550 (HF probes have priority).
If you connect the EHP-50 to an NBM-550 that has already
been started and then switch it on, you will have to select
the EHP-50 operating mode manually.
To select the EHP-50 operating mode manually:
✓
The display is in measuring mode.
1. Open the function
EHP-50 display
(MAIN MENU/INTERFACES/...).
2. Use the arrow keys
▲
/
▼
to select the
On
setting and
confirm by pressing the
OK
key.

The display switches to the measuring mode immedi-
ately.