Table of Contents
Fault
Symptom
F1
Pump power-on indicator
does not light.
F2
AC or DC power indicator
does not light.
F3
Display power-up message
appears and status light
remains red.
F4
No front panel display
power-up message, status
light green.
F5
No hand-terminal display,
status light green. Hand-
terminal key illumination
on.
F6
No hand-terminal display,
status light green. Hand-
terminal key illumination
not on.
F7
No front panel display
DK415 message. Status
light flashing red/orange.
F8
No hand-terminal or front
panel display DK415
message. Status light
flashing red/orange.
F9
Status light off.
F10
Status light steady orange. System fault.
5.5 Ventilating after Overpressure
To calibrate or test the ADTS 405, an external pressure source is connected to the Ps and/or Pt
output connectors. If, during calibration or test procedures, an overpressure occurs, the output
valves close to protect the system.
After the valves close, pressure may be trapped in the internal system; the display may show on the
next power-up error 701:0100 or 702:0100.
CAUTION
ONLY SELECT ITEMS DETAILED IN THE FOLLOWING MENUS, INCORRECT
SELECTIONS CAN CAUSE CHANGES TO SAFETY LIMITS AND THE CALIBRATION DATA OF
THE SYSTEM.
© 2015 General Electric Company – All rights reserved.
Table 5-2: Fault Advice and Action
Probable cause
Faulty power supply.
Unserviceable fuse, AC/DC
power supply.
Faulty power supply cable.
AC or DC power supply cable
to 405 rack.
405 rack AC input fuse.
PSU fault.
Internal control computer
fault.
Display fault.
Hand-terminal fault (cable
OK).
Hand-terminal.
No front panel display
detected.
Internal fault.
No hand-terminal or front
panel display detected. Hand-
terminal fault. Cable fault.
Internal fault.
Internal PSU fault.
Ventilating after Overpressure
Action
Check power supply.
Check/replace power supply fuse
or reset circuit protection device.
Check/replace fuse (front panel).
Replace cable and re-test.
Check/replace cables.
Check/replace fuses.
Record fault and return ADTS
405 to depot for repair.
Record fault and return ADTS
405 to depot for repair.
Use an available hand-terminal.
Record fault and return ADTS
405 to depot for repair.
Replace hand-terminal.
Record fault and return hand-
terminal to depot for repair.
Replace hand-terminal.
Hand-terminal or hand-terminal
cable fault. Record fault and
return hand-terminal/cable to
depot for repair.
Record fault and return ADTS
405 to depot for repair.
Remove hand-terminal and re-
test.
Record fault and return ADTS
405 to depot for repair.
Record fault and return ADTS
405 to depot for repair.
ADTS 405 Mk2 Instruction Manual-English | 63
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