Racal Instruments 9057 Technical Manual page 9

Frequency period meter
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Signal Conditions: Channel 'B' (9059)
Sensitivity Switch
Setting
0.01
0.1
Signal Range
0.01 - 0.5V
0.1 - 4V
Ma?<imum input
before damage
5V
5V
(volts r.m.s.}
D.C. Damage Overload
50V D.C.
1
.3
FREQUENCY MEASUREMENT
Frequency Range:
Accuracy:
Gate Times:
Self Check:
1.4
PERIOD MEASUREMENT
Range:
Periods Averaged:
Clock Units:
Self Check:
1 .5.
TIME BASE
Frequency Standard
Warm-up Time
9057/9059
Refer to 1 . 1
±
1 count± timebase accuracy.
10ms
1
lOOms. ls and lOs.
Internal 100kHz signal. (Does not operate on
Channel 'B' of the 9059).
NOTE: On the 9059 the signal will be applied
to Channel 'A'.
10Hz to
3
MHz
1
I
1 0
I
1 00 Or 1
I
000
10 f-'S
Internal 100kHz signal.
5 MHz Crystal Oscillator model 9440or 9441 with
proportional temperature control.
Typicclly 2 minutes for an accuracy of 1 part
in 10 and 4 minutes for an accuracy of 1 ·
part in 107.
Tech. Spec. (2)

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