
- -
62
AP473 S1 … AP473 S4 modules
AP473 S1, …, AP473 S4 modules work as interfaces between the Pitot tube and the DO9847
unit. Each module can be connected to any Pitot tube with the related thermocouple type K,
where provided. With temperature and atmospheric pressure standard conditions, S1 has a 40m/s
full scale, S2 a 55m/s full scale, S3 a 90m/s full scale and S4 a 130m/s full scale.
The modules of AP473 series are equipped with two pressure inputs to be connected to the Pitot
tube outputs and with an input for thermocouples type K.
The measurements provided by the modules are:
•
air velocity and differential pressure Pv (A1, B1 o C1)
•
air temperature measured by a thermocouple (A2, B2 or C2)
•
flow (A3, B3 or C3)
Press <9/UNIT> to select the units of measurement of the displayed instant value:
•
for air velocity: m/s, km/h, ft/min, mph, knots
•
for differential pressure (one unit of measurement only): Pa
•
for temperature: °C, °F o °K
•
for flow: l/s, m
3
/s, m
3
/min, ft
3
/s, ft
3
/min.
Operation
Insert SICRAM module connector in one of the instrument inputs (i.e.: A); connect Pitot tube
outputs (pressure and thermocouple) to the module.
Introduce the Pitot tube in the airstream to be measured, positioning the little rod at the bottom of
the tube parallel to the flow, as indicated in the following figure.
1
1
2
2
AP473 S...