HP 4935A, Руководство по эксплуатации и обслуживанию

Страница: 16 / 350

Model
General Information
TRANSMITTER
Noise with Tone
Frequency . . . . . . . . . . . . . . 1004 Hz fixed tone
(For other specifications, see Level and Frequency)
Signal-to-Noise Ratio
Frequency . . . . . . . . . . . . . . . . 1004 Hz fixed tone
(For other specifications, see Level and Frequency)
Impulse Noise
Frequency . . . . Hz fixed tone or quiet terminated
depending on filter selection
(For other specifications, see Level and Frequency)
T a b l e l - l . (Continued)
1
R E C E I V E R
Noise with Tone
Notch Filter. . . . . .
rejection from 995 to 1025 H
Z
Range 600R and
. . . . . . . . . . . . . .
I O - 1 0 0
Accuracy . . . . . . . . . . . . . . . . . from 20 to 100
from 10 to 20
(For other specifications, refer to Message Circuit Noise)
Noise-to-Ground
Transmitter is quiet terminated
P/AR (Optional)
Frequency . . Signal spectrum is a complex pulse train of
16 frequencies between 140 Hz and 3890 Hz.
Level Range . . . . . . . . . . . . . . . . . . . . .-40 to 0
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Signal-to-Noise Ratio
Signal Level Range . . . . . . . . . . . . . . . . . . .-40 to 3
Ratio Range . . . . . . . . . . . . . . . . . . . . . . . . . . .
IO to 45
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Impulse Noise
Level Range . . . . . . . . . . . . . . . . . . . . . . .
.-40 to
Notch Filter. . . . . . . . . . . . . . . . . . . . .See Noise with Tone
Threshold Ranges
Low . . . . . . . . . . . . . . . . . . . . . . . . . . . . . to 109
Mid
High ....
above Low to a maximum of 109
above Low to a maximum of 109
Loss of Holding Tone Indication . . . . . . . . . . . .
Minus sign
Threshold Accuracy (above 40
. . . . . . . . . . . .
1
Count Timer . . . . . . . . . . . . . . . 5, min. or non-stop
Count Range . . . . . . . . . . . . . . . O-9999 for each threshold
Count Rate
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8per sec.
Noise-to-Ground
Range 600R and
. . . . . . . . . . . .
to 130
Resolution
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Accuracy
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
P/AR (Optional)
P/AR Range. . . . . . . . . . . . . . . . . . . .O to 120 P/AR units
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 P/AR unit
Accuracy (from 30 to 110 P/AR units) . . . P/AR units
Level Range . . . . . . . . . . . . . . . . . . . . . . .
.-40 to
Resolution
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Temperature Range:
Operating . . . . . . . . . . . . . . 0°C to 50°C to 122°F)
with batteries to to
Storage . . . . . . . . . . to to
with batteries to to 113°F)
Warm up time 20°C for stated accuracy . . . . . . . . min.
Dimensions 1.2 x 25.9 x 28.6 cm (4.4 x 10.2 x 11.25 in.)
Weight . . . . . kg (11 Ibs.), 6.5 kg (14 Ibs.) with battery
OPTIONS
001 . . . . . . . . . . . . . . . . . Adds rechargeable battery pack
002 Adds P/AR measurement in place of Norse-to-Ground
003 . . . . . . . . . . . . .
Adds both battery pack and P/AR
Deletes Noise-to-Ground
ACCESSORIES:
15513A . . . . . . . . . Test cord w/31 0 male at both ends
. . . . . . . . . . . . . . . . . . . 19” rack mount adapter
. . . . . . . . . . . . . . . . . . . . . Soft pack carrying case
18161 A . . . . . . . . . . . . . . . . . . . . . , . . . . . . . Ladder bracket