AMI 210BR, Руководство пользователя

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AMI Analyzer Manual Installation Procedure
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You can simply use a multi meter connected to the output terminals. If so, make sure it is set correctly –
don’t use a voltmeter to measure current! Often people leave their meter in the current measurement
position and the next time they measure a voltage they blow the current fuse. If this has happened, the
meter won’t measure current until you replace it.
ii. Arrange that you can readily see the reading given by this device.
iii. On the AMI User Interface, check the “Zero” check box under SETUP in the ANALYZER
SETUP section.
iv. Observe the response of the monitoring device, and adjust the number in the box next to
the Zero label until the monitoring device shows what it considers to be zero (which
should correspond with either 1V or 4mA).
v. Check the box marked “Full Scale” in the SETUP section, and adjust the number in the box
next to it until the monitoring device shows full scale. This corresponds to 5V or 20mA.
vi. Check the “Mid Range” box and verify that the monitoring device shows mid scale.
vii. Uncheck any checked box (if you forget, the analyzer will revert to its ordinary operation in
ten minutes anyway).
17. Turn the Sample/Span/Off valve to OFF.
You don’t want to be flowing sample gas during the next step.
18. Unscrew the cell cap, and install the oxygen sensor.
Unscrew the cap first. Open the sensor bag, remove the sensor by holding the little handle and put it into
the cell compartment, gold side up, and with the little metal tag on the side facing you. When it is in place,
hold the sensor in place and pull out the tag. Do it in this order so that the sensor is always operating,
eating up oxygen that gets in through its membrane.
19. Optional: in the User Interface press the “NEW SENSOR” button, and record the sensor serial
number.
You might want to write it down. Note that you can read the serial number while the sensor is in place in its
cell block pocket – don’t leave the sensor out while you write it down.
20. Stabilize for 45 seconds, adjust span to 20.9%.
It will take the sensor about 20 seconds to come to a reasonably stable reading, but give it 45 seconds to be
sure. Don’t go over this time, even if the reading is still moving. The sensor is probably changing
temperature a bit which affects its reading until it has equilibrated with the analyzer. You aren’t concerned
with the utmost precision at this point, just a close-enough value.
21. IMMEDIATELY turn the Sample/Span/Off valve to SAMPLE.
Do this before you screw on the cell cap, because you will get rid of most of the air in the cell pocket
immediately, helping the sensor come down quickly.
22. If present, remove the USB cable.
23. Replace the Cell cap and tighten it down.