Spectrasensors OXY5500, Руководство оператора

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Oxygen Analyzer
3
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50 4900002239 rev. G 7-11-17
4. Set the 2nd Point value to any high value; e.g., 20.00 mA. The
value will be applied immediately.
a. Press the Apply button or enter another value.
5. Read the current value shown on the reference device; e.g.,
19.54mA.
a. Use the +/- symbols in the Adjust column next to the 2nd
Point value to adjust the values accordingly.
Example : The analyzer shows a value of 19.54mA and the value should be
20.00mA. Press the “+” button until the desired value is
registered.
To test the calibration, apply some test points by selecting different percentage
values, such as 0%, 25%, 50%, 75% or 100%, which corresponds to 4mA,
8mA, 12mA, 16mA and 20mA. Check the values with the reference device. If
satisfied with the calibration, press the button to save.
Input calibration
The procedure for calibrating the input is similar to the output procedure noted
above. Use the following steps to calibrate the input. Refer to Figure 3–56.
1. Apply a low current to the OXY5500.
2. Enter this value in the Reference column in the 1st Point row.
Figure 3–55 Analogues - 4-20mA calibration