MRO2X
– 5X Manual
- 30 -
98-0058
Rev. R
ALARM OUTPUT
The Expansion I/O relay 2 has been programmed to operate as an alarm relay. The relay will
energize whenever a warning or alarm condition occurs. The relay will remain energized as
long as the warning/alarm condition is active.
6.3
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 937/461-8833 if you have
any questions regarding the procedure.
CONDUCTIVITY CALIBRATION
Refer to Figure 6.2 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 6 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 MRO2X
Page 2: ......
Page 9: ...MRO2X 5X Manual 5 98 0058 Rev R SECTION 3 COMPONENTS AND SCHEMATICS 3 1 EXTERNAL FRONT VIEW ...
Page 11: ...MRO2X 5X Manual 7 98 0058 Rev R 3 2 INTERNAL REAR VIEW ...
Page 13: ...MRO2X 5X Manual 9 98 0058 Rev R 3 3 ELECTRICAL DIAGRAM MRO2X MRO3X MRO4X MRO5X ...
Page 14: ...MRO2X 5X Manual 10 98 0058 Rev R 3 4FLUID DIAGRAM MRO2X MRO3X MRO4X ...
Page 15: ...MRO2X 5X Manual 11 98 0058 Rev R 3 5 FLUID DIAGRAM MRO5X ...
Page 35: ...MRO2X 5X Manual 31 98 0058 Rev R FIGURE 6 2 ...
Page 36: ...MRO2X 5X Manual 32 98 0058 Rev R FIGURE 6 3 ...
Page 52: ...MRO2X 5X Manual 48 98 0058 Rev R SECTION 11 SPARE PARTS LISTING ...