Teledyne Everywhereyoulook BLZZRD, Installation And Operation Manual

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BLZZRD Portable Refrigerated Sampler
Section 5 Extended Programming
5-23
5.11 Sampler Enable
Certain external instruments can enable (start) or disable (stop)
a sampler by sending a signal to pin F of the sampler’s flow
meter connector. Teledyne ISCO flow meters, flow loggers, and
the Model 1640 Liquid Level Actuator have a programmable
sampler-enable feature that lets them enable or disable the
sampler. You can define the condition (such as level, flow rate,
pH, temperature, percent, rainfall, and I/O) or combination of
conditions that need to be true in order to enable the sampler.
The programming example “ Sampler Enable Programming ”
show a sample enable condition that uses a combination of condi-
tions. In this example the sampler has an attached 730 Bubbler
Flow Module, Rain Gauge and an SDI-12 sonde at address 5 with
four parameters. Refer to Figure A-12 in Appendix A for details
on programming sampler enables.
When the sampler detects that it is disabled at start time, it sus-
pends the program until it is enabled. Once enabled, the sampler
collects a sample only when programmed to take a sample at the
enable time. The diagram in Figure 5-4 shows the sampler’s
response when enabled or disabled at the start time.
Figure 5-4 Start Time Diagram for Sampler Enable
Settings
Time
R U N
P R O G R A M
V I E W R E P O R T
O T H E R F U N C T I O N S
"Run"
Selected
Clock Start Time
or Delay
Delay to Start
Delay to Start
A sample event at the start time occurs for time-paced
programs (except random). For flow-paced programs,
a sample event occurs only if the program requires a
sample at start time.
A sample event at enable time
occurs only when the program
requires a sample at enable.
Sampler Enabled
at Start Time
Sampler Disabled
at Start Time
Enabled
Disabled Enabled