Selecting parameters and units
In the MI70 user interface, measurement parameters are referred to as quantities.
The unit of the parameter can be selected between ppm and %. The default unit is ppm for measuring ranges with upper
limit of 10 000 ppm or less. For measuring ranges with upper limit of 2 … 20%, the default unit is %.
1. Open the menu by pressing Open.
2. Select Display and press .
3. Select Quantities and units and then press .
4. To select a parameter, move on the desired parameter using the arrow buttons and then press Select.
5. To change the unit, move on the desired parameter using the arrow buttons and then press Unit.
6. To hide a parameter, move on the desired parameter using the arrow buttons and then press Hide.
7. To return to the basic display, press Exit.
8. If you want to check the environment settings, press Yes. Otherwise press No.
Measurement units (ppm and %) express the CO
2
concentration by gas volume.
1% CO
2
= 10 000 ppm CO
2
Rounding
When using % units, you can select a 2 or 3-decimal display by using the Rounding options. As a default, rounding is
turned off (= a 3-decimal display is in use).
1. Open the menu by pressing Open.
2. Select Display and then press .
3. Select Rounding.
4. To turn rounding on, press On. To turn rounding off, press Off.
5. To return to the basic display, press Exit.
Rounding does not affect the measurement accuracy defined in the device specifications.
Holding and saving the display
With the Hold/Save function, you can freeze a certain display reading. This reading can be saved in the MI70 memory
and it will be available even after MI70 is disconnected from the transmitter.
1. In the basic display, select Hold/Save. Alternatively, select Main menu > Display > Hold/Save display > Hold.
2. Press Save.
3. To view the saved display, go to basic display and select Record > View recorded data. Alternatively, select Main
menu > Recording/Viewing > View recorded data.
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