HP 456A, Инструкция по эксплуатации и обслуживанию

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Section 1
Table 1-1
SENSITIVITY:
FREQUENCY RESPONSE:
PULS E RESPONSE:
MAXIMUM INPUT:
EF F ECT OF DC CURRENT:
INPUT IMPEDANCE:
PROBE SHUNT CAPACITY:
D1STOR nON AT 1 KC:
EQUIVA LENT INPUT NOISE:
OUTPUT lMP EDA NC E:
POWER:
WEIGHT:
DIMENSIONS:
ACC ESSOR Y A V AILABL E:
1-0
Table 1 -l. Specifications
1 rna/rna ± 1% at 1 kc
±2%. 100 cps to 3 me; ±5%. 60 cps to 4 mc;
-3 db at 25 cps and greater than 20 mc .
Model 456A
Rise time is less than 20 nanoseconds . sag is less than 1 6% per milli­
second.
1 amp rms; 1 .5 amp peak. 100 rna above 5 mc .
No appreciable effect on senSitivity and dis tortion from dc currenr
up to 0.5 amp.
(
lmpedance added in series with measu red w ire by probe.) Less tha n
50 milliohms in series w ith 0.05 �h. (Th is is approximately the induc­
tance of 1 - 1/2 inches of hookup wire.
)
Approximately 4 pf added from wire to ground.
For 1/2 amp input at least 50 db down .
For 1 0 rna input at least 70 db down .
Less than 50 �a rms (100 �a when ac powered
)
.
220 ohms at 1 kc . Approximately + 1 volt dc component. Should work
into load of not less than 100, 000 ohms shunted by approximately 25 pf.
Two Mallory Battery Co. TR 233R and one TR 234 batteries
(t/!jJ
stock
#
1420-0005 and 1420-0006). battery life is approximately 400 hours .
AC power supply optional at extra cost, 1 15/230 volts ± 10%. 50 to
1000 cps. approximately 1 watt.
N et 3 lbs .
5 in. wide. 6 i n. deep, 1 -1/2 in. high . Probe cable is 5 ft long. ou tput
cable is 2 ft long and terminated with a dual banana plug .
456/\-95B AC Supply for field installation .
00395-1