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PNEG-2175CE
CE Compliant Sampler - Model GCE 45 and GCE 90
8. Maintenance and Repair
General Maintenance
A good maintenance program involves thorough general housekeeping, adequate periodic re-lubrication
and replacement of worn or damaged components.
Testing ATEX Controls
All controls intended to provide prevention of ignition shall be capable of being tested to ensure they
remain functional. These tests should be carried out every 6 months.
1. Motor temperature controls shall be tested by opening the thermostat circuit and seeing the sampler
control go into a non-volatile lock out condition. Restart shall not be possible without manual reset of
the control system. On the GSI Sample Sentinel controls, these tests are carried out as follows:
a. Start the control
b. Locate terminal X3-2 and open the knife switch on that terminal
c. The control should go into a non-volatile lock out
d. Close terminal X3-2
e. Reset the control
f. Locate terminal X3-4 and open the knife switch on that terminal
g. The control should go into a non-volatile lock out
h. Close terminal X3-4
2. Sampler over speed testing shall be carried out by simulating a higher sample pelican speed
(>1 m/s), resulting in a non-volatile lock out. On the GSI Sample Sentinel controls, this is carried
out by:
a. Set all time DIP switches to OFF
b. Set the control in manual mode
c. Turn the stand-by/sample switch (5) to sample
d. Press and hold the reset button (3)
e. Press and hold the manual sample button (6) to run a sample cycle
f. Observe that the control goes into a non-volatile lock out
g. Return timer DIP switches to original setting
Failure to observe all safety rules, written and implied and those suggested by
common sense, can result in death, serious injury and/or equipment damage.
Lock out power before performing any maintenance.
