Ametek 888

Overview | 1-13
SV1 Demister
Normally
Closed
SV2-Flush Solenoid
Normally Open
PV1-Aspirator
Proportional
Valve, Normally
Closed
Period Name
Time
(s)
Zero
Calibration
1
Special
Flush
0 Controlling De-energized Open Closed
2
Flush &
Zero
60 Controlling De-energized Open Closed
Sample
Cycle
3
Sample
Flush
60 Controlling Energized Closed Open
4
Track
Sample
N/A Controlling Energized Closed Open
Zero and Photo
Span Calibration
5
Flush &
Zero
60 Controlling De-energized Open Closed
6 Track Zero 0 Controlling De-energized Open Closed
7
Photo Span
Calibration
60 Controlling De-energized Open Closed
8
Track Photo
Calibration
10 Controlling De-energized Open Closed
Steam Blow-
back Cycle*
9
Pre-Steam
Flush
10 Controlling De-energized Open Closed
10
Steam Blow
Back
20 Controlling De-energized Open Closed
11
Post Steam
Flush
60 Controlling De-energized Open Closed
Special Periods
12
Continuous
Flush
N/A Controlling De-energized Open Closed
13
Continuous
Hold
N/A Controlling Energized Closed Closed
14
Continuous
Sample
N/A Controlling Energized Closed Open
Figure 1-8.2: Analyzer Timing and Control Summary Without Steam Blowback