GSi GRA, Инструкция по установке и эксплуатации

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PNEG-2174 Sampler - Model GRA 31
8. Troubleshooting
General GRA Sampler Troubleshooting
Symptom Possible Cause Corrective Action
Sample does not cycle in either
auto or manual modes
(Power light OFF).
Power switch OFF. Turn power switch ON.
Circuit breaker is open. Reset breaker.
Main fuse is blown. Replace. (See Main Fuse on Page 24. )
Faulty supply wiring.
Correct. Refer to certified electrical
schematic.
Defective power switch. Replace switch.
Sample does not cycle in either
auto or manual modes
(Power light ON).
Faulty system wiring.
Correct. Refer to certified electrical
schematic.
No or low air pressure.
Turn air supply on and set regulator
to 80-100 PSI.
Defective control valve.
See Directional Solenoid Valve
Troubleshooting
on Page 32.
Sampler timer T-1 digital display
does not illuminate but sampler
works in manual mode.
Defective auto/manual switch S-2.
Replace switch if line voltage is
absent across #1 and #2 on timer T-1.
Defective timer T-1.
Replace switch if line voltage is
absent across #1 and #2 on timer T-1.
Sample size too small or large.
Speed control valves set too low or too
high. Adjust speed control valves. (See Speed
Control Valves
on Page 25. )
Sample cutter opening too small or large.
Replace. (See Sample Cutter Blade
Replacement
on Page 28. )
Sample interval timer or counter set too
high or low.
Adjust sample interval timer T-1 or counter
C-1. (See Digital Display Timer T-1
(Standard)
on Page 22. ) or (See Digital
Display Counter C-1 (Optional) on Page 23. )
Sampler leaks air or material
continuously out the sample
discharge.
Sample cutter seals torn or missing.
Replace. (See Sample Cutter Seals
Replacement
on Page 29. )
Sample cutter not stopping under the
dust seals.
Adjust torque hub. (See Drive Arm
Positioning and Torque Hub Tightening
on Page 29. )
Sampler installed on a positive
pressure line. Remove pressure by venting
sampler or consult InterSystems.
Sample cutter worn.
Replace. (See Sample Cutter Blade
Replacement
on Page 28. )
Sampler sluggish
(Operates too slowly).
Inadequate air supply. Increase line size or add surge tank.
Regulator set too low.
Reset. (See Air Filter/Pressure Regulator
on Page 26. )
Filter clogged.
Clean as outlined in Section. (See Draining
and Servicing the Filter
on Page 28. )
Airline from filter regulator blocked
or damaged.
Inspect and correct.
Cylinder seal leakage.
See Air Components Troubleshooting
on Page 33.
Careless or accidental restoration of power can result in death or serious injury.
Make certain area is clear before removing lock outs.