Bacharach INSIGHT Manual De Usuario

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The difference in pressure (ΔP) between two areas can be measured by 

using the analyzer's two pressure ports and the PRESSURE screen.  By 

using the -ΔP port as the reference, the pressure applied to the +ΔP port 

will be displayed on the PRESSURE screen as the differential pressure 

between the two ports.  Perform a draft / pressure measurement as follows:

1. Turn ON the analyzer and allow it to complete its warm-up cycle.

2. Display the MAIN MENU by pressing the MENU (F2) button.  If 

necessary, press ESC until MENU appears 

above F2.

3. Use the ▲▼ buttons to select PRESSURE. 

Press ENTER to display the Pressure 

screen.

4. Before taking a measurement, the pressure 

sensor may need to be re-zeroed if it is not 

already displaying zero with both pressure 

ports open to the atmosphere.  If necessary, 

zero the pressure sensor as follows:

Press the ZERO (F2) button.

Disconnect any hoses connected to the 

+ΔP and -ΔP ports, and then press EN-
TER

 to zero the pressure sensor.

Reconnect any hoses.  When measuring 

draft, leave the -ΔP port open to the at-

mosphere and connect the probe's draft 

hose to the +ΔP port.

5. Do one of the following to measure draft or 

differential pressure:

To measure draft, insert the probe into 

the stack and observe the draft reading 

on the PRESSURE screen.

To measure differential pressure, con-

nect two sampling hoses to the +ΔP 

and -ΔP ports, and place the open end 

of each hose into the areas being mea-

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F1        F2         F3

Undiluted Flue
Gas Sample Taken
Under Draft
Diverter in Top

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