ADB Safegate 7150 Product Manual

Digital barometer

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Model 7150
Digital Barometer
PRODUCT MANUAL
7150/Rev F

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Summary of Contents for ADB Safegate 7150

  • Page 1 Model 7150 Digital Barometer PRODUCT MANUAL 7150/Rev F...
  • Page 2: Disclaimer / Standard Warranty

    Material Handling Precautions and Storage precautions that must be followed. ADB SAFEGATE reserves the right to examine goods upon which a claim is made. Said goods must be presented in the same condition as when the defect therein was discovered. ADB SAFEGATE furthers reserves the right to require the return of such goods to establish any claim.
  • Page 3 Model 7150 Series Digital Barometer Revision History Revision Date Summary of Changes Clarified description of boot counter operation, rotated mounting diagram in Figure 4 to match photo in Figure 3, matched dimensions in specifications to those 2012 Jan 6 in Figure 4, corrected year of EN61326-1 :2006 report to 2005, adapted warranty to match FAA Advisory Circular 150/5220-16D Section 2.4(h) p 12.
  • Page 4: Table Of Contents

    Model 7150 Series Digital Barometer Contents 1. Overview ................................... 5 1.1 Data Collection Platform Kit Options ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������5 2. Theory of Operation ................................ 6 2.1 Pressure Transducer �����������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������6 3. Operation ..................................7 3.1 Communication �������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������7 3.1.1 Sensor Polling�������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������8 3.1.2 Boot Counter ��������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������9 4.
  • Page 5: Overview

    1.1 Data Collection Platform Kit Options The Model 7150 Series of digital barometers is also available as part of a complete kit for installation in the ADB Safegate Model 1190 or Model 1190-I Data Collection Platform (DCP) used in AWOS systems. These kits include the digital barometer, the M105037 Quad Plate Pressure Port, and their associated tubing and power/data cables.
  • Page 6: Theory Of Operation

    Model 7150 Series Digital Barometer 2. Theory of Operation The 7150 Series Digital Barometer measurements are based on a peizoresistive pressure sensor and a temperature sensor, which are measured continuously. A microprocessor in the barometer calculates the pressure reading based on compensations for pressure linearity and temperature dependence.
  • Page 7: Operation

    3.1 Communication The 7150 Series Digital Barometer communicates over its serial port at one of four baud rates. The baud rate is selected by the SW3 DIP switches inside the enclosure. Figure 2 shows the location of the SW3 DIP switches.
  • Page 8: Sensor Polling

    A zero represents no error. A one reports a problem with that sensor. Asterisks (*) indicate values that are out of range or not present in the sensor. The standard 7150 barometer (with two pressure transducers) used in AWOS systems will always display cc.ccc as **.*** since the third pressure transducer is not installed. All of the values will be represented initially by asterisks when polled immediately after being powered up.
  • Page 9: Boot Counter

    0 0 1 * * * Pressure Sensor #1 reading **.*** indicates missing or out of range (this is a Model 7150-A barometer) Pressure Sensor #2 reading 32.925 inHg (this is a Model 7150-A barometer) Pressure Sensor #3 reading 32.951 inHg (this is a Model 7150-A barometer) Temperature is -38°C Trend -0.001 inHg over past 3 hours...
  • Page 10: Installation & Checkout

    The barbed pressure fitting is not recommended for turbulent or high-speed static wind conditions — the accuracy quoted for the 7150 Series Digital Barometers does not include any wind effects.
  • Page 11: Pressure Connections

    The barbed pressure fitting is not recommended for turbulent or high-speed static wind conditions — the accuracy quoted for the 7150 Series Digital Barometers does not include any wind effects. The pressure fitting must also be carefully protected from rain to keep water from getting into the pressure connector where it may cause errors in the pressure measurement.
  • Page 12: Maintenance

    5.1 Periodic Maintenance Schedule Periodic maintenance procedures for the 7150 Series Digital Barometers are divided into three categories within the maintenance cycle — monthly, triannual, and annual maintenance. 5.1.1 Monthly Maintenance •...
  • Page 13: Barometric Pressure Offset (When Permitted)

    ±0.005 inHg of the standard. Refer to the manual for the display system to which the barometer is interfaced. Note the amount of deviation of the Model 7150 from the standard; this will be used as the offset. The offset will be “negative” if the pressure sensor reading is greater than the standard.
  • Page 14: Specifications

    Model 7150 Series Digital Barometer 6. Specifications Parameter Specification Pressure Range 14.7 – 33.0 inHg (500 – 1117 hPa) Operating Temperature -40 to +185ºF (-40 to +85ºC) Storage Temperature -67 to +257ºF (-55 to +125ºC) Humidity noncondensing Pressure Units inHg Resolution 0.001 inHg (0.03 hPa)
  • Page 15: Electromagnetic Compatibility

    7. Electromagnetic Compatibility The 7150 Digital Barometer is designed to comply with the CE norms for electromagnetic compatibility. The condition for this compliance is the use of braided cables and proper grounding techniques. The 7150 Digital Barometer has successfully passed the following emissions and immunity tests.
  • Page 16: Warranty

    8. Warranty Unless specified otherwise, ADB Safegate (the Company) warrants its products to be free from defects in material and workmanship under normal use and service for one year from date of installation or a maximum of two years from date of...
  • Page 17 Optimizing Airside Operations From approach to take-off SMARTER. BETTER. NOW. w w w . a d b s a f e g a t e . c o m...

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