Racal Instruments 9916 Workshop Manual page 11

Uhf frequency meter
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1.
DISPLAY
Format:
Latch:
Display Time:
Reset:
Check:
Eight digit in-line, 7 segment l.e.d. display
plus overflow indicator.
Decimal point positioned
automatically.
Previous measurement is displayed during the
period reguired to complete a new measurement.
The display is updated automatically at the end
of each measurement.
Approximately equal to gate time plus
1
ms.
A push button Reset switch resets the reading to
zero when pressed and
rel~ased.
With the Function switch in the CHECK position
the display shows:
Channel 'A'
-
Al I digits set to 8 to check all
segments.
Channel
I
B'
operation.
Counter reads
1 MHz.
to check
Gate/Charging
Indicator:
Bat.tery Low
Indicator:
Overload Indicator:
Overflow/ Standby
Indicator:
External Standard
Indicator:
Display Un its
Indicators:
9916
Vol. 2
lights when the gate is open or batteries are
being charged at the full rate.
Lights when batteries are low.
lights when
'A'
channel input exceeds about
5V
r.m.s.
lights when display is 'overfilled' or when on
Standb.., mode.
lights when external frequency standard
IS
connected and switched on.
"
Light to indicate the units in which the display
should be read.
Tech. Spec.
or

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