Operating Requirements
The instrument has the following power requirements:
A single-phase power source with one current-carrying conductor at or near
earth-ground (the neutral conductor).
NOTE.
Systems with both current-carrying conductors live with respect to ground
(such as phase-to-phase in multiphase systems) are not recommended as power
sources.
For mains supply frequency and voltage speci
fi
cations, refer to
Operating
Requirements.
. (See page 14.)
Fuses
Only the line conductor is fused for over-current protection. The fuse is internal
and not user replaceable. Do not attempt to replace the fuse. If you suspect the
fuse has blown, return the instrument to an authorized service center for repair.
Batteries
The instrument does not contain any user-replaceable batteries.
Input Ratings
Table 2: Maximum input voltage
Input
Rating
At front-panel BNC connector. 1
M
Ω
300 V
RMS
, Installation Category II; De-rate at 20 dB/decade between 4.5MHz and 45MHz,
De-rate 14db between 45Mhz and 450MHz. Above 450Mhz, 5VRMS..
Max input voltage, 50
Ω
and 75
Ω
5 V
RMS
with a Peak of +/- 20V (DF<=6.25%)
At the P6316 probe input, not at the
instrument input
50 V
p-p
(threshold setting dependent)
Environmental Ratings
Table 3: Environmental speci
fi
cations
Characteristic
Description
Operating
–10 °C to + 55 °C
Temperature
Nonoperating
–40 °C to +71 °C
Operating
5% to 90% relative humidity (% RH) at up to +40 °C,
5% to 60% RH above +40 °C up to +55 °C, non-condensing
Humidity
Nonoperating
5% to 90% RH (Relative Humidity) at up to +40 °C,
5% to 60% RH above +40 °C up to +55 °C
5% to 40% RH above +55 °C up to +71 °C, non-condensing
MDO3000 Installation and Safety Instructions
17
