31-XXXX-XX
10
Prelim Draft - Brand Neutral
BACnet IP/MSTP VAV Controller - INSTALLATION
INSTRUCTION
effect past the heater and tends to keep most dust off the
bridge structure. The heat affect, along with a simple filter, can
help to keep the dust from causing output shifts in the output
of the device. Although the sensor naturally repels dust, some
dust and contamination can still collect on the microstructure.
Dust adherence to chip edges and channel surfaces can be
prevented by using a simple filter. A disposable five micron filter
used in series on the upstream side of the airflow divide will
provide adequate filtering in most applications. See
for
recommended filter suppliers.
Table 4. Recommended Filter Suppliers
Pall Corporation
www.pall.com
Acro
50
The filter may be used at a common mode
pressure of 0.17 MPa (24.6 psi) at a temperature
of 80 °C [176 °F] May be used with swag lock
compression fittings Approximate pressure drop
is 5 kPA at 1 SLPM of flow.
Acro
cap
May be used at an operating temperature of 55 °C
[131 °F] and common mode pressure of 30 psi
Sensors connections are1/4 barb fittings General
Gas filter Pressure drop is 1 psi with a flow of 15
SLPM Fittings are 1/8 barbed tubing.
Parker Balston
Model
9933-
05
US and EMEA only sales offices. May be used at
common mode pressures up to 125 psi and
operating temperature to 135 °C [275]
°F Sensor connections are 1/4 tube.
MAHLE:
https://catalog.mahleaftermarket.com/eu/product.xht
ml?eid=184
MAHL E
KL13
Automotive filter
Airflow Sensor Replacement
Procedure to replace the airflow sensor is as follows:
1.
Gently pull the sensor cover outward and rotate it by 75 degree.
Figure 7. Removing the sensor cover
2.
Disconnect the electrical connector by gently pulling it away
from the differential pressure sensor.
3.
Replace the airflow sensor.
Figure 8. Replace the sensor
4.
Attach the electrical connector.
5.
Close the cover.
