Bacharach 67-7622, Installation & Operation Instruction

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Instructions 67-9319
Bacharach, Inc.
Page 4-9
INJECTOR CALIBRATOR CD3 MAINTENANCE AND TROUBLESHOOTING
4.2.6 Checking Main PC Board
Between these terminals
on the main P.C. board: Voltage should be: If not, probable cause is:
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15 and 16 11 to 13 VAC Defective fuse F-2 or transformer T2.
8 and 1 4.5 to 5 VDC Defective main P.C. Board.
8 and 2 3 to 5 VDC Defective optical detector #1.
8 and 2 (with 0 to 2 VDC Defective optical detector #1.
detector blocked)
8 and 3 (with cam 3 to 5 VDC Defective optical detector #2.
top dead center)
8 and 3 (with cam 0 to 2 VDC Defective optical detector #2.
bottom dead center)
8 and 5 0 VDC
8 and 6 0 or 4.5 VDC* Defective transducer.
8 and 7 0 or 4.5 VDC* Defective transducer.
8 and 9 5.5 or 6.0 VDC Defective main P.C. Board.
8 and 14 (with cam 4.5 to 5 VDC Defective main P.C. Board.
top dead center)
8 and 14 (with cam 0 VDC Defective main P.C. Board.
bottom dead center)
8 and 5 4.5 to 5 VDC Defective K1 relay.
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*Movement of the flow transducer encoder arm will cause voltage change.
ADDITIONAL VOLTAGE CHECKS
Terminals: Voltage should be: If not, probable cause is:
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across K1 coil 115 VAC Defective motor start switch or S6
M1 auxiliary contact.
L6 or L7 solenoid on should be energized Defective K3 (or when K3 is
manually transducer operated,
they should not be energized).
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