Super Systems eFLO - Manual (Page 12)

eFlo Electronic Flow Meter Operations Manual
Super Systems Inc. Page 12 of 25
Flow Limit Control (Automatic Mode)
IMPORTANT!
Adjusting the flow limit setting can result in erratic operation if the adjustment is performed
improperly. For this reason, it is recommended that the adjustment be performed by an SSi
technician or with technical support. For more information, contact SSi at (513) 772-0060.
In Automatic Valve Control Mode, a mechanism is needed to prevent the control valve from
opening too far (if the value opens too far, damage to the motor could result). A limit switch on
the eFlo unit provides this mechanism (see Figure 4). This adjustment was completed during
calibration of the eFlo instrument. In the event that the adjustment collar was moved from its
factory set position, the steps below describe how to reset this collar to the proper position. To
set the limit switch to a proper setting for your application:
1. In the Automatic Valve Control Mode, set the eFlo control valve to allow for full flow
capacity as specified when the instrument was purchased. Allow the valve to reach the
maximum flow so that the motor stops moving.
2. Using a 1/8” hex wrench, loosen the adjustment collar and move it so that it is located
approximately 1/8” below the limit switch.
3. Tighten the set screw on the adjustment color to lock its position on the adjustment
cylinder.
4. Set the eFlo instrument to zero flow so that the adjustment lowers and the valve closes.
5. Again, set the eFlo instrument to full flow capacity. Observe the adjustment collar’s
location relative to the limit switch.
6. Verify that the adjustment collar has traveled to the same location (approximately 1/8”
from the limit switch), indicating the correct position of the collar.
7. Ensure that the set screw is tightened properly.
The limit switch should now be properly set.