Sentry SBC Installation, Operation & Maintenance Manual page 22

Model RB
1. Energize solenoid, air cylinder extends sample tube, start motor, start sample timer
2. Sample time expires
3. Solenoid de-energized, air cylinder retracts sample tube, start auger purge timer
4. Auger purge time expires
5. Stop motor, start cycle timer
6. Cycle time expires
7. Go to step 1
Model RPG
1. Energize sample tube solenoid, air cylinder moves sample tube into process stream, start delay timer (allows time
for sample tube to extend)
2. Delay time expires
3. Energize rotary solenoid, sample tube rotates up, start sample timer
4. Sample time expires
5. De-energize sample tube solenoid, sample tube retracts, start delay timer (allows time for sample tube to retract)
6. Delay time expires
7. De-energize rotary solenoid, sample tube rotates down, start cycle timer
8. Cycle time expires
9. Go to step 1
Model SA/A
 NOTE
Every actuation of the sample solenoid is two (2) sample collection cycles)
1. Energize solenoid, air cylinder moves pelican across the sample flow, start cycle timer
2. Cycle time expires
3. De-energize solenoid, air cylinder moves pelican across the sample flow, start cycle timer
4. Cycle time expires
5. Go to step 1
Model SA/E & GE
1. Energize motor, motor moves pelican across the sample flow
2. Sensor indicates pelican is under dust seal, de-energize motor, start cycle timer
3. Cycle time expires
4. Go to step 1
22 Original Instructions Sentry Equipment Corp