Operation
Settings
3-70
43iQHL Instruction Manual
Thermo Scientific
at 0 volts. When the high range is active, the range mode selection
status output is at half of full-scale.
When the high range is active, the concentration must drop to 85% of
the low SO
2
range for the low range to become active.
In addition, each SO
2
range and analog output has a span coefficient so
that each range can be calibrated separately. This is especially necessary
if the two ranges are not close to one another. For example, the low
SO
2
range is set to 0–10 ppm and the high SO
2
range is set to 0–1000
ppm.
Summary of Contents for 43iQHL
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