Specifications

23G-Series RO System
3024270 Rev G 108 14Oct13
8.4 Temperature Calibration Procedure
8.4.1 Cleaning the Feed Conductivity Sensor
1. Turn machine OFF.
2. Locate and remove the feed conductivity sensor
The temperature sensor is encapsulated in the feed conductivity
sensor. The feed conductivity sensor is located downstream of the
pre-filters and above the inlet diaphragm valve. A bucket or
container may be needed to catch the water when the feed
conductivity sensor is removed.
3. Clean any debris or residue from the probe tips with a clean
towel.
If either one of the tips is broken off, the probe must be replaced.
4. Install the feed conductivity sensor back in the machine.
8.4.2 Calibrating the Temperature
NOTE:
Machine should be running while calibrating temperature.
1. Take a sample of the feedwater [about 8 ounces (0.24 L)] from
the feed sample port on the inlet of the machine. Measure the
temperature with a recently calibrated thermometer.
2. Locate potentiometer marked “temp” on the main circuit board.
The circuit board for the potentiometers is located in the door of the
ECM-100 enclosure.
The potentiometer marked "temp" is located just below the center
of the board.
3. Adjust the potentiometer marked "temp" until the temperature
on the ECM-100 display matches the temperature of the hand-
held thermometer.
• Clockwise (CW) rotation lowers the temperature reading.
• Counterclockwise (CCW) rotation raises the temperature
reading.
4. If the temperature reading on the ECM-100 will not adjust see
Troubleshooting (Section 7.0).