ATI
Model A15/82 Fluoride Monitor with Auto-Calibration
11
O&M Manual
Rev-G (6/10)
SAMPLE INLET OVERFLOW
The water sample supplied to the monitor is connected to a special overflow chamber. This is done to
insure that the sample flowrate to the monitor is sufficient to insure that fresh sample is always available at the
sample pickup point. Most of the sample flowing to this assembly will simply go directly to the drain.
Figure 5 shows the sample overflow assembly on its aluminum mounting bracket. The bracket is
supplied to hold the inlet assembly under the sample pump, and to allow waste from the chemistry module to
flow back into the drain chamber. The overflow assembly should be mounted close to the chemistry module (as
shown in Figure 5) to minimize system response time. Mounting further from the chemistry module will increase
the sample transport time, thereby increasing the monitor response time. Once mounted, the sample pickup
tube should be placed into the inlet chamber and the chemistry module drain tube should be placed into the drain
chamber as shown.
Figure 5 - Sample Inlet and Drain Chamber
