3.2 Instrument overview
Narda NBM-550 19
Probe (various models available)
9 Probe head
10 Probe plug
10a Probe with threaded coupling connector
10b Probe with “Push-Pull” connector
EHP-50
11 Probe head
12 Tripod bush
13 Electrical and optical connections
13a Optical connector
13b AUX signal input for electrical signals – can only be used with EHP-TS.
Please follow the instructions in the EHP-50 operating manual.
13c ON / OFF button
13d Status LED
Meanings of colors and flashing rates:
• No charger unit connected:
– Red, rapid flashing: cannot set up communications
– Green, rapid flashing: setting up communications
– Green, slow flashing: data transfer in progress (flashing rate depends on
measurement speed)
• Charger unit connected (no data transfer possible):
– Orange, rapid flashing: battery charging
– Green, rapid flashing: battery fully charged
13e Charger unit
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