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Before starting the calibration routine, make sure the analog output is connected
to the intended readout equipment. To calibrate the MX 9000 it is necessary to
enter the analog value read from the user’s readout equipment.
From the run mode STATUS screen, press and hold the ENTER button for 3
seconds to reach the password screen. Enter “11111” using the DOWN – UP –
SELECT buttons then push ENTER. The I/O Function programming screen will
appear. Press the UP or DOWN button to display the ‘Calibrate Output Loop 1’
choice and then press ENTER.
At the first mA adjustment screen, the MX 9000 outputs the value that should
equal 4mA output. Change the mA value on the screen to match the value
shown on the user’s readout equipment and press ENTER when done.
At the second mA adjustment screen, the MX 9000 outputs the value that should
equal 20mA output. Change the mA value on the screen to match the value
shown on the user’s readout equipment and press ENTER when done.
At the next screen, the MX 9000 outputs the corrected 4mA value for loop
1. At the last screen the MX 9000 outputs the corrected 20mA value for loop
1. If either measured output is still not close enough to the required value, enter
the calibration routine again for loop 1. When done, press EXIT until back at
STATUS screen.
Loop 2 is calibrated in an identical manner – just select “Calibrate Output Loop 2”
in the IO Function screen.
NOTE: Loop 2 is only available if option boards 1 or 2 are present.
Figure 27. Calibrating Analog Output
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