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5-4-3 Automatic zero adjustment
RI-2000R will automatically adjust its zero point periodically(standard: every 7days)
once it is turned on.
The operations that will be done are
1.
Seven days past since it was turned on
2.
The 3 way solenoid activates and the gas aspiration will be switched to the zero gas
inlet. (start of zero adjustment)
3.
Zero adjustment will be done after 3minutes have passed.(zero adjustment)
4.
After adjusting the zero point, the solenoid will switch the sample line to the sample
gas inlet.
5.
RI-2000R will go back to detection mode and monitor gas concentration after 3
minutes have passed. (End of zero adjustment)
6.
Periodically operate zero adjustments.
＊
NOTE
・
-2000Rs operation will be as the following during zero adjustment. (between 2 and 5
written above)
1.
output signal (4-20mA): keeps the value just before the adjustment has started
2.
LCD: will indicate operation of zero adjustment by flashing
3.
key operation: not valid
・
The zero adjusting period will depend on the environment and the length of tubes.
