17
5.3
CONTROLLER ADJUSTMENTS
Your controller has been calibrated prior to shipment and the conductivity set point has been
preset based on an analysis of your water provided at the time of sale. It may be necessary
to periodically calibrate the Conductivity. If the controller should require calibration, follow
the instructions below. Please contact AmeriWater at 800/535-5585 or 937/461-1988 if you
have any questions regarding the procedure.
CONDUCTIVITY CALIBRATION
Refer to Figure 5.2 for adjustment location (SPAN). To calibrate the Conductivity, place the
cell in a known standard solution. Adjust the span adjustment for the correct reading. If the
cell is installed, the unit can be calibrated by taking a sample from the PRODUCT TEST
PORT and testing it with a known, calibrated meter. Adjust the span control until the reading
matches the meter.
Refer to figure 5.1 for adjustment location. To calibrate the 2
nd
TDS / Conductivity, place the
cell in a known standard solution. Adjust the span adjustment for the correct reading. If the
cell is installed, the unit can be calibrated by taking a sample of the water and testing it with
a known, good meter. Adjust the span control until the reading matches the meter.
DISPLAY ADJUSTMENT
The display contrast can be adjusted for best viewing by adjusting control R3. This control is
located toward the upper right corner of the board, just to the left of the cell connector.
Summary of Contents for 00HRO64800
Page 6: ...5 SECTION 3 COMPONENTS AND SCHEMATICS 3 1 HRO COMPONENT IDENTIFICATION...
Page 8: ...7 3 2 HRO FLOW DIAGRAM...
Page 9: ...8 3 3 HRO ELECTRICAL SCHEMATIC...
Page 19: ...18 FIGURE 5 2...
Page 20: ...19 FIGURE 5 3...
Page 37: ...36 9 2 SPARE PARTS LIST...