41
Step 4 will display the mV output of the electrode in the first buffer. When this reading is stable,
press the Enter key to continue.
Step 5 will prompt you to rinse the electrode and place it in the second buffer. Press the Enter key
to continue.
Step 6 will ask you to enter the value of the second buffer. Use the Arrow keys to change the
value, then press the Enter key to highlight ‘CONTINUE’, then press Enter again to put the value
into memory.
Step 7 will display the mV output of the pH electrode in the second buffer. When the reading is
stable, press the Enter key to continue.
At the end of the calibration, the display will tell you if the calibration was successful or if the
calibration failed. If successful, press the Enter key after the electrode has been replaced into the
sample stream to resume control. If failed, refer to Section 8 for troubleshooting help. A
calibration will fail if the offset calculated is more than 200 mV, or if the slope calculated is
outside of 0.5-1.5.
1 pt Buffer Cal
Step 1 will explain that control is suspended during the calibration procedure. Press the Enter key
when the cursor is on “Continue” to start the calibration. To cancel the calibration, press the Next
key to move the cursor to “Cancel”, then press the Enter key.
Step 2 will prompt you to rinse the electrode, and place it into the buffer solution. Press the Enter
key to continue.
Step 3 will ask you to enter the value of the buffer solution. Use the Arrow keys to change the
value, then press the Enter key to highlight ‘CONTINUE’, then press Enter again to put the value
into memory.
Step 4 will display the mV output of the electrode in the buffer. When this reading is stable, press
the Enter key to continue.
At the end of the calibration, the display will tell you if the calibration was successful or if the
calibration failed. If successful, press the Enter key after the electrode has been replaced into the
sample stream to resume control. If failed, refer to Section 8 for troubleshooting help. A
calibration will fail if the offset calculated is more than 200 mV, or if the slope calculated is
outside of 0.5-1.5.
1 pt Process Cal
Step 1 will display the current pH reading of the system water. Below that, use the Arrow keys to
fill in the new value, then press the Enter key to highlight ‘CONTINUE’, then press Enter again to
put the value into memory.
At the end of the calibration, the display will tell you if the calibration was successful or if the
calibration failed. If successful, press the Enter key after the electrode has been replaced into the
sample stream to resume control. If failed, refer to Section 8 for troubleshooting help. A failed
calibration is caused by an offset from the uncalibrated reading of more than 200 mV.
Содержание WebMaster
Страница 19: ...15 Figure 1a Typical Installation Cooling Tower ...
Страница 20: ...16 Figure 1b Typical Installation Boiler Intermittent Sampling ...
Страница 21: ...17 Figure 1c Typical Installation Boiler Continuous Sampling ...
Страница 30: ...26 Figure 7 Wiring Diagram for Optional Digital Communications ...