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r
Ageing Rate
Temperature Performance
1 .6
EXTERNAL STANDARD INPUT
Frequency
Minimum level
Maximum level
1.7
DISPLAY
Format
latch
Reset
Overflow
1 .8
POWER SUPPLY
Better than 1 part in 10
8
per day on delivery,
and
typi~ally
better than 5 parts in 10 9 per
day after 1 months operation.
Better than 1 part in 10
8
per
0
(
average over
0
the range - 10
to
45 C.
1MHz
100mV r.m.s. in 1 kOcapacitively coupled.
1 OV
r .m .s. 100
V
d. c.
Six digit in-line solid state numerical indicators
plus overflow. Decimal point automatically
positioned.
Previous measurement is displayed during period
required
to
complete new measurement. Display
is automatically up-dated at the end of each
measurement.
Operation of the Reset push-button resets the
display
to
zero and the instrument is then ready
to
commence new measurement.
Overflow lamp lights if display reading exceeds
999999.
NOTE:
The Battery Power Pack and A .C. Power Pack are offered as sep<9rate
options One is necessary to operate the instrument.
Battery Operation
Power Source
Fixing
Batteries
Operating Time
9057/9059
Option 07-lbttery Pack incorporating built-in
charger.;
Clamped to rear of counter by two finger-
tightened screws.
Eight re-chargeable nickel-cadmium •D• size
cells.
Approximately 5 hours at 25°C from fully
charged condition.
Tech. Spec. (3)
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