Roche 91 Series - 9110 Analyzer Block Diagram

Roche Diagnostics April 2007
Service manual · Version 2.0 A-39
91xx pH/Electrolyte Analyzers 5 Electronic diagrams
Electronic diagrams
Electronic diagrams
9110 analyzer block diagram
Figure A-4 9110 analyzer block diagram
Preamplifier
Ph Amp
not used
not used
Analog Selector
and
A/D Converter
Power Supply
+22 VDC / +10 VDC
+8 VDC / -8 VDC
+22 VDC / +16 VDC
Interface Driver
RS232
90 - 250 V~
MAIN
50 - 60 Hz
Temperature Control
Microprocessor
Solenoid Valve Drivers
Power Receptacle
1.6 AT
1.6 AT
Display Module YES/NO Switches
Temp Sensor Sample Contacts
P r in t e r
A sse m bl y
L a m p B o a r d
Power Supply Module
Fuse F1 2.5 A/250 V +5 VDC/+24 VDC
+12 VDC/-12 VDC
Ph Electrode
Reference
Electrode
GND
S BC B o a r d
D i s pl ay B o a r d
Sample Contact1 / Preheater
P. Pump Motor
JP6
Sample Door
JP7
Valve A JP1
Valve B JP2
Valve C JP3
Valve V JP4
Valve R JP5
JP8
JP1
JP7
JP3
JP1
Display Driver
JP4
Printer Driver
JP1
Peristaltic Pump Driver
JP5
JP2