67
Basic programming setup
First flush bottles
First flush describes the initial storm water runoff. This runoff may contain higher
concentrations of pollutants and is sequestered in separate bottles from the flow or
time-weighted composite samples.
a. Enter the number of bottles to set aside for the First Flush portion of the sampling
program using the numeric keypad.
The number of first flush bottles will depend on the sample volume requirements
in your NPDES permit.
b. Enter number of samples to collect using the numeric keypad.
c. Enter the first flush sampling interval. This is the time period between sample
cycles. The first flush samples are usually collected within thirty minutes of the
storm.
Variable time intervals may be entered or the same interval may be carried through the
entire first flush. Pressing
FINAL ENTRY carries the last displayed interval through the
remainder of the first flush sampling period.
Table 5 Start condition requirements
Rain Enter the amount of rainfall and the time period when it must fall.
Level Level Limit
Rain and Level Enter the amount of rainfall and the time period when it must fall, and desired level limit.
Immediate No start condition required
External Trigger No start condition required
11:00 AM 21 - APR - 01 STORM WATER
ACCEPT FIRST FLUSH:
NUMBER OF BOTTLES:
CANCEL
1CLEAR
ENTRY
ENTER: 1— 4
11:00 AM 21 - APR - 01 STORM WATER
ACCEPT FIRST FLUSH:
SAMPLER TO COLLECT:
CANCEL
6CLEAR
ENTRY
ENTER 1 — 999
11:00 AM 21 - APR - 01 SETPOINT SAMPLING
ACCEPT FIRST FLUSH
INTERVAL:
CANCEL
(hrs:min) CLEAR
ENTRY
ENTER: 000:00 — 999:00 (hrs:min)
Goodnal STP ST041 Pre Treatment (Sigma 900 MAX All Weather Refrigerated Sampler) Vendor Manual
To Next Page
Loading...
