Data Acquisition Systems
Features
Industries Served
- Military
- Commercial
- Helicopter
Specifications
Data Acquisition Unit
Features
Parameters (I/O): Limited only by the number of pins available in the connectors
- Frequencies 3.5 Hz to 30,000 Hz, 0.5 Vrms to 150 Vrms
- Thermocouples, ANSI Type K thermocouple from 0 °C to 1200 °C
- RTDs
- DC Voltages
- Synchro
- Second Harmonic
- Ratio-metric
- Capacitive Fuel Quantity
- Discrete inputs
- Discrete outputs
- RS-232, RS-422
- ARINC 429, 825
Specifications
- Software Certification is to DO-178B DAL A
- Environmental Certification is to DO 160-G
- Power: 28 VDC nominal per MIL-STD-704A. Power consumption 15 Watt Max.
- TSO: C43c, C44c, C47a, C49b, C55a
- Dimensions: 8.4” x 4.8” x 2.6” (inches) 8. Weight: 4.0 lbs Max
Specifications
Configuration Module Unit
Features
H697A Configuration Module Units are used to configure the DAS for a specific engine or aircraft. This allows the system to be further tailored on to a specific installation without requiring variations in installed software.
H697B Configuration Module Units are the same as H697B series CMUs except that they contain extra memory for data logging.
Specifications
Dimensions:
H697A – 4.0″ x 2.1″ x 1.6″
H697B – 4.0″ x 2.0″ x 1.5″
Weight:
H697A – 0.5 lbs
H697B – 0.5 lbs
Power (Max):
H697A – 2W
H697B – 3W
Specifications
Display Unit
Features
The DUs also provide control over the DAU by allowing the user to select which channel of the DAU is providing excitation or choosing which DAU channel’s readings to use in case of a sensor acquisition failure.
Howell currently has 3″ ATI, 7″ and 10″ DU form factors. Each can be programmed with custom graphics to allow minimal changes in user interface with the legacy instrumentation system. At the same time, a more robust warning system can be implemented to incorporate flight manual limitations to ease pilot workload and ensure that the systems are being correctly managed.
NVIS Options available upon request
Specifications
The DU shall meet the following TSO requirements: Environmental, Software and Hardware certifications, whether complete or incomplete, guidance per the following Technical Standard Order (TSO);
There are several of the TSO authorizations listed that are considered “Components of a complete system” as defined in FAA Policy PS-AIRI00-8150.1B, FAA
Order 8150.1 B, Technical Standard Order Program, Policy Clarification, June 13, 2003″, and as such, those TSO authorizations will be marked as “Incomplete System”. The functions of the DU that relate to any of the “Incomplete” TSO authorizations will only be compliant to the TSO when used in conjunction with another aircraft system authorized by that TSO.
The product label for the DU will reflect those TSO authorizations that are complete and will state that additional “Incomplete” TSO authorizations are listed in the installation manual (see below list).
- Engine Monitoring System (EMS/MFD) – Engine gauge display and mapping display
- Complete TSO Authorization
- TSO C 113 Airborne Multipurpose Electronic Displays
- Incomplete TSO Authorization
- TSO C44c Fuel Flow meters
- TSO C45b Manifold Pressure Instruments
- TSO C47a Pressure Instruments – Fuel, Oil, and Hydraulic
- TSO C49b Electric Tachometer: Magnetic Drag (Indicator and Generator)
- TSO C43c incomplete Class Ill a Temperature Instruments
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Have questions about Data Acquisition Systems? Reach out to us and we would be happy to help.