Racal Instruments 9916 User Manual

CHAPTER 4
9916 Vol. 2
TECHN ICA L DESCRIPTION
Introduction
Logic Circuit Symbols
Normal Mode
Signal Input
IAI Channel Amplifier
AGe and Attenuator
Low Level Inhibit
Overload Protection clOd Indication
IB' Channel Ampl ifier
AGe and Attenudtor
low Level Inhibit
Signal Selection System
Frequency Standard
Oscillator Assembly 11-1254
Internal Standard Buffer
Externdl Standard Input
Display System
Resolution and Decimal Point Selection
Units Ind icators
Overflow
Gate Indi cator
Display Blanking
Manual Res-et
Externa I Hold and Reset
Burst Mode
Summary of Operation
Circuit Operation
Check Mode
Power Supply
Lirle Power
+ 5 Vol t Stabil iser
- 5 Volt Stabilis-er
+ 24 Volt Supply
+ 2 Volt Supply
Battery Charging
Charge Irldicator
Battery Power
Battery Low Indicator
Over Discharge Protedion
. Overlood Protection
Standby Operation
Battery Economy Operation
LF Multiplier 11-1255
Principle
Circuit Description
4-1
4-1
4-1
4-1
4-1
4-1
4-2
4-2
4-2
4-3
4-3
4-3
4-4
4-4
4-4
4-4
4-4
4-5
4-6
4-6
4-6
4-6
4-7
4-7
4-7
4-7
4-7
4-8
4-8
4-8
4-9
4-9
4-10
4-10
4-10
4-11
4-11
4-12
4-12
4-12
4-12
4-\2
4-13
4-13
4-13
Contents (2)

Racal Instruments 9916 Specifications

General

Brand	Racal Instruments
Model	9916
Category	Measuring Instruments
Language	English