b. Bases: 1.8% to 2.2% per °C
c. Salts: 2.2% to 3.0% per °C
d. Water: 2.0% per °C
4. Press ENTER to proceed to the T SLOPE submenu with the flashing prompt. Use the
IRC keys to generate the desired slope value. Press ENTER.
5. Press EXIT to return to the main screen.
7.3.7 Output calibration
1. Wire an accurate milliammeter as shown in Figure 7-1.
Milliammeter wiringFigure 7-1:
2. Press CAL on the IRC.
3. Press NEXT until the OUTPUT CAL submenu appears. Press ENTER.
4. Use the arrow keys to change the display to match the reading from the
milliammeter. Press ENTER.
5. Press RESET to return to the main display.
7.4 Calibrating dissolved oxygen, ozone, free
chlorine, total chlorine, and ozone sensors
7.4.1 Calibrating amperometric sensors
Amperometric sensors can be calibrated in multiple ways: zeroing, air calibrations, dual
slope calibrations, and in process calibrations.
7.4.2 Zeroing the sensor procedure
Complete the following steps to zero a dissolved oxygen, free chlorine, total chlorine, or
ozone sensor.
Measurements
48 Rosemount 5081
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