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CPA2501 -- Air Data Test Indicator

Category: PRESSURE, CALIBRATORS

Model: Pressure Indicator, Pressure Indicators

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Application

The model CPA2501 air data test indicator is used in aviation and aerospace applications for calibration of altimeters and airspeed indicators, displaying altitude, airspeed, altitude rate (vertical airspeed) and airspeed rate (acceleration). Applied wherever there is a need for a high level of accuracy in an avionics indicator or calibration instrument.

Functionality

The CPA2501 can be configured with an altitude channel and an airspeed channel consisting of Ps/Pt or Ps/Qc. It can be configured as a single-channel altitude/altitude rate indicator, (Ps only) a single-channel airspeed/airspeed rate indicator (Qc only) or it can be a dual-channel unit configured as Ps/Pt or P s/Qc. In the Ps/Pt version the airspeed/airspeed rate channel is a calculated channel. An optional barometer can be installed for display in the front panel or as a separate channel. Pressure ranges for each channel can be specified by the customer.

Versions

The CPA2501 versions are as follows:

  • Ps (altitude version)
  • Qc (airspeed version)
  • Ps/Qc with a virtual Pt channel ?? Ps/Pt with a virtual Qc channel

An optional barometric sensor can be added to any version. Communication

The manual user interface is through a widescreen display with touchscreen. Navigation within the intuitive menu structure is easily learned. Recognisable touchscreen icons open screens for configuration and calibration. Communicating to a remote computer is achieved through RS-232, IEEE-488, USB or Ethernet.

Communication commands are the same as the previous version of Mensor avionics gauge models 2108 and 2109 or the WIKA command set “SCPI”.

Measuring range

0 ... 950 mbar abs. up to 0 ... 1,253 mbar abs.

0 ... 29.5 inHg at 0 °C up to 0 ... 37 inHg at 0 °C

Accuracy 1)

0.009 % IS-50 2)

Pt sensor

Measuring range

0 ... 1,355 mbar abs. up to 0 ... 3,725 mbar abs.

Accuracy 1)

0 ... 40 inHg at 0 °C up to 0 ... 110 inHg at 0 °C

Standard: 0.01 % FS

Optional: 0.01 % IS-50 2)

Qc sensor

Measuring range

-34 ... +100 mbar up to -34 ... +3,386 mbar

Accuracy 1)

-1 ... +3 inHg at 0 °C up to -1 ... +100 inHg at 0 °C

0.01 % FS

Barometric reference

The barometric reference can be used to switch pressure types (absolute <=> gauge). With gauge

Function

pressure sensors, the measuring range of the sensors must begin with -1 bar in order to carry out

an absolute pressure emulation.

Measuring range

575 ... 1,151 mbar abs.

Accuracy 1)

17 ... 34 inHg abs. at 0 °C

0.01 % of reading

Pressure units

38 and 2 user-defined units

Aviation units

Altitude: feet, miles, meter, kilometer

Airspeed: knots, mph, km/h, meter/s, TAS (True Air Speed), IAS (Indicated Air Speed)

Calibration interval

365 days

P pressure range

0.009 % IS-50 2)

0.009 % IS-50 2)

s

0 … 32 inHg abs.

0 … 35 inHg abs.

Altitude

Sea level ±3 ft

Sea level ±3 ft

10,000 ft ±4 ft

10,000 ft ±4 ft

25,000 ft ±7 ft

25,000 ft ±7 ft

40,000 ft ±12 ft

40,000 ft ±13 ft

60,000 ft ±31 ft

60,000 ft ±34 ft

Qc pressure range

0.01 % FS

0.01 % FS

-1 … +36 inHg

-1 … +103 inHg

Airspeed

50 kn ±1.0 kn

100 kn ±1.0 kn

100 kn ±0.4 kn

200 kn ±0.5 kn

200 kn ±0.2 kn

500 kn ±0.2 kn

500 kn ±0.06 kn

1,000 kn ±0.04 kn

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