Operation
Settings
Thermo Scientific
43iQHL Instruction Manual
3-69
The Range Mode Selection screen is used to switch between the various
range modes: Single, Dual, and Auto Range.
Home Screen>Settings>Measurement Settings>Range Mode Selection
The Range Mode Selection screen contains the following information:
●
Single:
In single range mode, there is one range, one averaging time,
and one span coefficient.
●
Dual:
In the dual range mode, there are two independent analog
outputs. These are labeled simply as the “High Range” and the “Low
Range”. Each channel has its own analog output range setting,
averaging time, and span coefficient.
This enables the sample concentration reading to be sent to the analog
outputs at two different ranges. For example, the low SO
2
analog
output can be set to output concentrations from 0 to 50 ppm and the
high SO
2
analog output set to output concentrations from 0 to 100
ppm.
In addition, each SO
2
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.
●
Auto:
The auto range mode switches the SO
2
analog outputs between
high and low range settings, depending on the concentration level. The
high and low ranges are defined in the Range Settings screen.
For example, suppose the low range is set to 50 ppm and the high
range is set to 100 ppm, as shown below. Sample concentrations below
50 ppm are output based on low range selection and sample
concentrations above 50 ppm are output based on high range selection.
When the low range is active, the range mode selection status output is
Range Mode Selection
Содержание 43iQHL
Страница 1: ...43iQHL Instruction Manual High Level Sulfur Dioxide Analyzer 119015 00 1Apr2022...
Страница 2: ......
Страница 8: ......
Страница 18: ......
Страница 34: ...Operation Instrument Display 3 8 43iQHL Instruction Manual Thermo Scientific...
Страница 150: ......
Страница 172: ...Maintenance Pump Rebuilding 5 4 43iQHL Instruction Manual Thermo Scientific Figure 5 2 Pump Rebuilding...
Страница 176: ......
Страница 192: ...Servicing Fan Replacement 7 8 43iQHL Instruction Manual Thermo Scientific Figure 7 8 Replacing the Fan...
Страница 238: ......
Страница 256: ......
Страница 264: ......
Страница 276: ......
Страница 277: ......