Racal Instruments 9916 User Manual

4.62 Putting 52 to the CHARGE position bypasses R133 and R134, which increases the
charging rate by approximately 10 times.
Charge Indicator
4.63 The anode of LP7 is supplied from the +5 volt rail at the collector of 050. The
same supply turns on Q31 via R130 and R135 since, when CHARGE is sel ected,
there is no supply to IC7 and therefore no clamp ing action at the R 130/R135 junction.
Battery Power
4.64 With 52 set to BATTERY POWER the batteries are connected as shown in Fig. 4.3.
t5V (
I
BATTERY 'k ""'7'"
-L-
-
I
BATT
POWER 3
CHARGE
o
oLlNE POWER
Q35 (OVERLOAD
PROTECTION I
F S I
R158
9916 Vol. 2
Battery Power System J
Fig.4,3
4-11

Racal Instruments 9916 Specifications

General

Brand	Racal Instruments
Model	9916
Category	Measuring Instruments
Language	English