Honeywell SC1000 User Manual

Page of 174
 page 30      008-0608-00
boards in the instrument.
The Front Panel/Display Board Assembly contains the display and all front panel 
controls.
The Power Supply Board contains the +15V, -15V and +5V power supplies.
The Microprocessor Board contains the microprocessor, ROM software storage 
chip, and the System connector. 
The Hardware Input/Output Channel Boards plug into the remaining four slots 
of the SensoBus Backplane Board.
4.3.9 Cleaning
Turn off the instrument and unplug all connectors.  Use a soft cloth or tissue and a
mild cleaner.  Do not use liquid or aerosol cleaners.  Do not allow any cleaner inside
the instrument.
4.3.10 Vehicle Power 
Option
Model SC1000 and SC2000 instruments are available with a vehicle power option for
operation with batteries and linear DC power supplies.  See “Specifications” on
page 26 volt
age and power requirements.
4.3.11 Fuse 
Replacement
The power-line fuses of AC-powered instruments are located within the instrument's
power entry module on the rear panel.  Use two 2A, 250V fast-blow fuses (p/n 029-
3026-00).
NOTICE
Due to the momentary startup inrush current of the instrument’s power supply, 
the use of switching power supplies with the SC are not recommended.