Bacharach Fyrite INSIGHT PLUS Instrukcja Obsługi Pobierz pdf (Strona 93)

Fyrite



INSIGHT

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Plus Manual Calibration and Maintenance

0024-9487 Rev 2 87

Step Pressure Sensor Calibration Procedure

1 Assemble the pressure sensor calibration equipment as shown above, but DO

NOT connect the analyzer to the calibration equipment at this time.

2 If not already done, power ON the analyzer and display the CALIBRATION

menu. Note that this requires password validation (see page 55).

3 Use the UP () and DOWN () arrow buttons to select PRESSURE and then

press ENTER to display the CALIBRATE PRESSURE screen.

"Measured" is the pressure value currently being detected by the pressure

sensor, while "Applied” is a known value of pressure that will be applied for

calibration purposes.

4 With both the -ΔP and +ΔP ports open to the atmosphere, observe that the

current measured pressure reading should be 0.00 ± 0.01 inwc. If necessary,

zero the pressure sensor (Menu → Pressure → Zero) then repeat steps 2

through 4).

5 Connect the hose from the manometer to the +ΔP port and apply a negative

pressure to this port by adjusting the bellows for a manometer reading of

-4.00 (negative 4.00). Other units are shown below.

Units Name

Nominal Calibration

Point

inwc inches water column -4.00 inwc

mB millibars -10.00 mB

hPa hecto Pascals -10.00 hPa

Pa Pascals -1000 Pa

mm H

O millimeters of water -101.6 mm H

6 Use the UP (), DOWN (), LEFT (), and RIGHT () arrow buttons to enter

an “Applied” value that exactly equals the manometer reading.

NOTE: The calibration range is from -6 to -2 inwc (-15 to -5 mB).

An attempt to calibrate outside this range will cause the

message "Applied Value High" (or Low) to appear at the bottom

of the screen.

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Bacharach Fyrite INSIGHT PLUS Instrukcja Obsługi Strona 93