barfield 1811NG Operator's manual

Copyright © 2020 Barfield Inc. All Rights Reserved.
1811NG
Pitot-Static Test Set
USER INSTRUCTION MANUAL
M/N 1811NG, P/N: 101-01178
Doc. P/N: 56-101-01178
Revision K
September 2, 2020
_____________________________

56-101-01178 Revision K Page | ii
Corporate Headquarters
4101 Northwest 29thStreet
Miami, Florida 33142
www.barfieldinc.com
Email: [email protected]
SAFETY
Barfield Inc. Confidential and Proprietary Information
This document and all the information contained herein is the sole property of Barfield Inc.
No intellectual property rights are granted by the delivery of this document or the disclosure of its content.
This entire document is proprietary information and shall not be reproduced or disclosed to a third party
without the express written consent of Barfield Inc.
This document and its content shall not be used for any purpose other than that for which it is supplied.

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SAFETY
Before using this instrument, the operator should read and understand all of the related data. This
includes the applicable local safety procedures, this publication and the instructions for the
accessories/options/equipment you are using it with and the system or components under test.
This equipment was designed to be safe when used as per the procedures of this Instruction
Manual.
Before you start an operation or procedure in this publication, make sure you have the required
skills (if necessary, with qualifications from an approved training establishment).
Always follow good engineering practices.
WARNING: A WARNING notice indicates a hazard with a potential for property damage,
personal injury or death if the instructions are not followed. The operator should not
proceed beyond the WARNING notice until required conditions are understood and
fully complied with.
CAUTION: A CAUTION notice indicates a hazard with a potential for damage to the equipment
and or loss of data if the instructions are not followed. The operator should not
proceed beyond the CAUTION notice until required conditions are understood and
fully complied with.
WARNINGS
WARNING: Do not use this equipment when it is not in its normal condition.
WARNING: When testing with this equipment follow the appropriate procedures as per the AMM
or CMM observing all safety instructions.
WARNING: Do not use this equipment for purposes other than as specified in this manual.
WARNING: Do not use this equipment in a wet environment.
WARNING: Do not use this equipment in an atmosphere of explosive gas.
WARNING: This test equipment shall only be serviced by authorized personnel.
CAUTIONS
CAUTION: Inspect the aircraft Static Vents for dirt or debris before making any connections.
CAUTION: Inspect the aircraft Pitot Probes for dirt or debris before making any connections.
CAUTION: Do not connect this equipment to a contaminated aircraft pitot-static system.
CAUTION: To prevent damage to this equipment, do not allow water or other contaminants to
be introduced into the ports.
CAUTION: When equipment is connected to the hoses, exercise care not to stand on, or in
anywise kink the hoses.
CAUTION: Always monitor aircraft instruments to ensure the maximum rates of change are not
exceeded.
CAUTION: Failure to follow procedures as written could produce a negative airspeed condition
capable of damaging the aircraft instruments.

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MARKING AND SYMBOLS
This instrument meets the relevant European safety directives (*). The instrument
carries the CE mark.
(*) Wi-Fi disabled for EMC
SYMBOLS ON THE INSTRUMENT
Warning –Read and
understand operator’s manual
before using this machine

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ATTENTION
Although every effort has been made to provide the end user of this equipment with the most current
and accurate information, it may be necessary to revise this manual in the future. Please be sure to
complete and return the enclosed OWNER WARRANTY REGISTRATION CARD to Barfield in
order to validate the warranty and to ensure that you will receive updated information when
published. You MUST have your name and address on file at Barfield as a registered user of this
equipment to be able to obtain the service covered by the warranty.
Visit the company website, http://barfieldinc.com/, for publication updates.
Please send the Registration Card to:
BARFIELD, INC.
P.O. Box 025367
Miami, FL 33102-5367
USA
CONTACT INFORMATION
Users are requested to notify the manufacturer of any discrepancy, omission, or error found in this
manual. Inquiries should include specific questions and reference the publication title, number,
chapter, page, figure, paragraph, and effective date.
Please send comments to:
TECHNICAL CUSTOMER SUPPORT - GSTE
BARFIELD, INC.
P.O. BOX 025367
MIAMI, FL 33102-5367
USA
Telephone [phone]
[phone]
Fax [phone]
Email [e-mail]

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MAINTENANCE AND REPAIR INFORMATION
The manufacturer of this equipment does not recommend the user to attempt any maintenance or
repair. In case of malfunction, contact the manufacturer to obtain the list of approved repair facilities
worldwide, ensuring that this equipment will be serviced using proper procedures and certified
instruments.
BARFIELD PRODUCT SUPPORT DIVISION
Telephone [phone]
[phone]
Fax [phone]
Email [e-mail]
Shipping Address:
Barfield, Inc.
4101 NW 29th Street
Miami, Florida 33142
USA
Mailing Address:
Barfield, Inc.
P.O. Box 025367
Miami, FL 33102-5367
USA

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REVISION RECORD
REV.
ECO #
REV. DATE
DESCRIPTION OF CHANGE
A
N/A
January 20, 2015
Initial Release.
B
260-01092
March 18, 2015
Logo Page iii, Table 2, Figure 10, Pages 37 & 42.
C
260-01107
July 1, 2015
CE Mark Page iii, Figure 1 Page 1, Table 3 Page
4, 2.B. Page 10, Figure 30 Page 25, Figure 49
and Notes Page 38.
D
260-01117
August 4, 2015
TOC Page vii, Chapter #s Pages 54 & 55, Figure
1 Ref. Page 1, Table 7 Ref. Page 51.
E
260-01135
October 29, 2015
Update navigation screens and introduce OPT-A.
F
260-01175
October 17, 2016
Updated Format & Logo, Updated Approved
Repair Facility Information, added new software
upload procedure from latest released app.
Added Cabin Pressure Mode. Added IBF Mode.
G
260-01184
November 7, 2016
Corrected typo on cover page –2015 changed to
2016. Updated with software six month note
reminder.
H
260-01200
March 15, 2017
Page # reformatted. Note pertaining to the
custom limits deletion.
I
260-01213
October 10, 2017
TOC reformatted. Operating limits modified.
Software Update procedure modified.
J
260-01214
May 18, 2018
Updated TOC and formatting; Changes to Table 6
Display Units, EPR Test information; Modification
of Figures 4, 11, and 48; Additions to Introduction
information (Calibration vs Verification disclaimer
and Equivalencies with equipment), Hold/Resume
Function, and Appendix A.
K
260-01270
September 2, 2020
Reformatting & grammar revisions; removed
Figure 36 (duplicate); Addition to Introduction: 4.
App Information and modified 5. Software;
Addition to Table: Key to Figure 11; Addition to
Chapter 4, 11: Aircraft Testing section; Addition to
Appendix A; Addition of Appendix E: Wi-Fi
Connection Procedure.

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TABLE OF CONTENTS
Safety / Warning / Cautions
Symbols
Attention / Contact Information
Maintenance
Revision Record
Table of Contents
List of Figures
List of Tables
PAGE
INTRODUCTION........................................................................................................................... 1
1. PUBLICATION BREAKDOWN........................................................................................1
2. INFORMATION PROVIDED WITH THE TEST SET .......................................................1
3. RECERTIFICATION .......................................................................................................2
4. MOBILE DEVICE’S APP INFORMATION.......................................................................3
5. SOFTWARE UPDATE....................................................................................................3
6. TEST SET EQUIVALENT...............................................................................................3
CHAPTER 1: GENERAL............................................................................................................... 5
1. INTENDED USE.............................................................................................................5
2. SPECIFICATIONS..........................................................................................................5
3. INSTRUCTIONS FOR USE............................................................................................8
4. TECHNICAL ASSISTANCE............................................................................................9
CHAPTER 2: RATINGS.............................................................................................................. 10
1. SUPPLY VOLTAGES ...................................................................................................10
2. CONNECTION DESCRIPTION.....................................................................................10
3. ENVIRONMENTAL.......................................................................................................10
CHAPTER 3: INSTALLATION.................................................................................................... 11
1. ASSEMBLY ..................................................................................................................11
2. GROUNDING (EARTHING)..........................................................................................12
3. ELECTRICAL CONNECTIONS.....................................................................................13
4. VENTILATION / DRAINAGE.........................................................................................13
5. PNEUMATIC PRESSURE CONNECTIONS.................................................................14
CHAPTER 4: OPERATION......................................................................................................... 15
1. OPERATING CONTROLS............................................................................................15
2. POSITIONING..............................................................................................................16
3. ACCESSORIES............................................................................................................16
4. PREPARATION............................................................................................................19
5. POWER ON INITIALIZATION.......................................................................................19

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6. OPERATING MODES...................................................................................................20
7. TEST SET CONFIGURATION STATUS DISPLAY.......................................................21
8. USER INTERFACE MENU AND DISPLAY...................................................................23
9. TEST SET OPERATION...............................................................................................38
10. TEST SET LEAK TEST ................................................................................................41
11. AIRCRAFT TESTING....................................................................................................46
12. ENGINE PRESSURE RATIO (EPR) TEST....................................................................56
13. SHUTDOWN PROCEDURE.........................................................................................58
CHAPTER 5: RECEIVING, SHIPPING, AND STORAGE........................................................... 60
1. RECEIVING..................................................................................................................60
2. SHIPPING ....................................................................................................................60
3. STORAGE....................................................................................................................60
CHAPTER 6: MAINTENANCE.................................................................................................... 61
1. GENERAL ....................................................................................................................61
2. PREVENTATIVE ..........................................................................................................61
3. TROUBLESHOOTING..................................................................................................61
4. CALIBRATION..............................................................................................................61
APPENDIX A: ABBREVIATIONS & GLOSSARY....................................................................... 62
APPENDIX B: OPERATING LIMITS........................................................................................... 64
APPENDIX C: 1811NG INTERNAL PNEUMATIC DIAGRAM..................................................... 67
APPENDIX D: MENU NAVIGATION........................................................................................... 68
APPENDIX E: WI-FI CONNECTION PROCEDURE.................................................................... 69
APPENDIX F: CABIN PRESSURE MODE.................................................................................. 77
1. SECTION 1...................................................................................................................77
2. SECTION 2...................................................................................................................79
APPENDIX G: IBF SYSTEM MODE ........................................................................................... 85
APPENDIX H: FIELD FIRMWARE UPDATE PROCEDURE VIA USB & BARFIELD ADTS APP
.................................................................................................................................................... 90

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LIST OF FIGURES
PAGE
FIGURE 1 IDENTIFICATION LABEL............................................................................................ 1
FIGURE 2 OWNER WARRANTY REGISTRATION CARD........................................................... 2
FIGURE 3 LIMITED 2 YEAR WARRANTY................................................................................... 4
FIGURE 4 POWER ENTRY MODULE ....................................................................................... 10
FIGURE 5 CASE DIMENSIONS................................................................................................. 11
FIGURE 6 OPTIONAL TRAVEL / SHIPPING CASE................................................................... 12
FIGURE 7 POWER SUPPLY CABLE......................................................................................... 13
FIGURE 8 DO NOT OBSTRUCT VENTS................................................................................... 13
FIGURE 9 HUMID AIR EXHAUST.............................................................................................. 13
FIGURE 10 1811NG PRESSURE CONNECTIONS................................................................... 14
FIGURE 11 1811NG FRONT PANEL......................................................................................... 15
FIGURE 12 INSTRUCTION MANUAL, P/N 56-101-01178......................................................... 17
FIGURE 13 ELECTRICAL CABLE, P/N AE9887-ND.................................................................. 17
FIGURE 14 HOSE KIT, P/N 115-00633...................................................................................... 17
FIGURE 15 ANTENNA, P/N 126-00001..................................................................................... 18
FIGURE 16 CARRYING BAG, P/N 195-00021........................................................................... 18
FIGURE 17 AN4 CAPS WITH LANYARD, P/N 176-00001......................................................... 18
FIGURE 18 POWER ON INITIALIZATION DISPLAY.................................................................. 19
FIGURE 19 DEFAULT 2-CHANNEL (DUAL PS, PT) MODE...................................................... 21
FIGURE 20 OPTIONAL 1-CHANNEL (PT ONLY) MODE........................................................... 21
FIGURE 21 TEST SET CONFIGURATION INFORMATION DISPLAYED.................................. 22
FIGURE 22 DISPLAY SETUP AERONAUTICAL MENU ............................................................ 23
FIGURE 23 HOLD/RESUME FEATURE DISPLAYED................................................................ 24
FIGURE 24 TARGET VALUE KEYPAD SCREEN...................................................................... 24
FIGURE 25 DISPLAY SETUP: 4-PARAMETER......................................................................... 25
FIGURE 26 DISPLAY SETUP:2-PARAMETER FORMATS....................................................... 25
FIGURE 27 DISPLAY UNITS –FOR AERONAUTICAL MODE.................................................. 26
FIGURE 28 DISPLAY UNITS –FOR PRESSURE UNITS MODE .............................................. 26
FIGURE 29 LEAK TESTING MENU........................................................................................... 26
FIGURE 30 LEAK RATE TIMER RESULTS............................................................................... 27
FIGURE 31 SELECT ATP LEAK TEST PROFILE...................................................................... 28
FIGURE 32 ATP LEAK TEST - PARAMETER PROFILE SCREEN............................................ 29
FIGURE 33 ATP LEAK TEST RESULTS SCREEN.................................................................... 29
FIGURE 34 GO TO GROUND CONFIRM SCREEN................................................................... 30
FIGURE 35 CONCLUSION OF GO TO GROUND ..................................................................... 30
FIGURE 36 SETUP 1................................................................................................................. 31
FIGURE 37 ALTITUDE CORRECTION SCREEN ...................................................................... 32
FIGURE 38 ALTITUDE CORRECTION ON-AIRCRAFT............................................................. 32
FIGURE 39 ALTITUDE CORRECTION KEYPAD....................................................................... 32
FIGURE 40 TEST SET CONFIGURATION, UPDATED ALTITUDE CORRECTION................... 33
FIGURE 41 SETUP 1 CONTROL MODE(S)............................................................................... 33
FIGURE 43 SETUP 2 - SELECTING LIMIT FILE TO EDIT......................................................... 34
FIGURE 43 SETUP 2 –EDIT CUSTOM LIMITS......................................................................... 34
FIGURE 44 DELETE CUSTOM LIMITS ..................................................................................... 35
FIGURE 45 BACKLIGHT ADJUSTMENT................................................................................... 37
FIGURE 46 1811NG FRONT PANEL......................................................................................... 38
FIGURE 47 INITIALIZATION DISPLAY...................................................................................... 39
FIGURE 48 LEAK TESTING MENU(S) ...................................................................................... 41
FIGURE 49 SELECTING ATP LEAK TEST PROFILE................................................................ 42

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FIGURE 50 LEAK TEST PROFILE - PARAMETERS SCREEN.................................................. 42
FIGURE 51 LEAK TEST TIMER SCREEN................................................................................. 43
FIGURE 52 LEAK RATE TIMER, UNIT SAFE AT GROUND...................................................... 44
FIGURE 53 ATP LEAK TEST..................................................................................................... 44
FIGURE 54 ATP LEAK TEST RESULTS.................................................................................... 45
FIGURE 57 UNIT SAFE AT GROUND....................................................................................... 47
FIGURE 56 LEAK TEST RESULTS............................................................................................ 49
FIGURE 57 CONFIRM GO TO GROUND .................................................................................. 58
FIGURE 58 UNIT SAFE AT GROUND....................................................................................... 58
FIGURE E.1 CONNECT SCREEN ............................................................................................. 69
FIGURE E.2 “INFORMATION” WI-FI CONNECT SCREEN........................................................ 69
FIGURE E.3 PASSWORD REQUEST........................................................................................ 70
FIGURE E.4 “CONNECT” SCREEN WITH UNIT SELECTED DISPLAYED ............................... 70
FIGURE E.5 DISCONNECT FROM ADTS APP MENU.............................................................. 71
FIGURE E.6 “DISCONNECT REMOTE” BUTTON ..................................................................... 71
FIGURE E.7 “LOCAL UI: ENABLE” BUTTON............................................................................. 72
FIGURE E.8 REMOTE CONNECTED/REMOTE UI DISABLED................................................. 72
FIGURE E.9 CONNECT SCREEN ............................................................................................. 72
FIGURE E.10 “INFORMATION” WI-FI CONNECT SCREEN...................................................... 73
FIGURE E.11 UNIT WI-FI SELECTION...................................................................................... 73
FIGURE E.12 PASSWORD REQUEST...................................................................................... 74
FIGURE E.13 “CONNECT” SCREEN WITH UNIT SELECTED DISPLAYED ............................. 74
FIGURE E.14 DISCONNECT FROM ADTS APP MENU............................................................ 75
FIGURE E.15 “DISCONNECT REMOTE” BUTTON ................................................................... 75
FIGURE E.16 “LOCAL UI: ENABLE” BUTTON .......................................................................... 76
FIGURE E.17 REMOTE CONNECTED/REMOTE UI DISABLED............................................... 76
FIGURE F.1 MAIN MENU SCREEN (PAGE 2)........................................................................... 77
FIGURE F.2 NUMBERED KEYPAD SCREEN ........................................................................... 77
FIGURE F.3 SETUP 2 SCREEN ................................................................................................ 78
FIGURE F.4 DISABLED CABIN PRESSURE MODE ................................................................. 78
FIGURE F.5 ENABLED CABIN PRESSURE MODE .................................................................. 79
FIGURE F.6 INITIALIZATION SCREEN..................................................................................... 79
FIGURE F.7 CABIN PRESSURE MODE –STEP 1.................................................................... 80
FIGURE F.8 DPS1000 & 1811NG CONNECTION PORTS ........................................................ 80
FIGURE F.9 WARNING SCREEN.............................................................................................. 81
FIGURE F.10 CABIN PRESSURE MODE –STEP 2.................................................................. 81
FIGURE F.11 CABIN PRESSURE MODE –STEP 3.................................................................. 82
FIGURE F.12 CABIN PRESSURE MODE –WARNING SCREEN ............................................. 82
FIGURE F.13 CABIN PRESSURE MODE –MEASURING CABIN PRESSURE AND RATE...... 83
FIGURE F.14 CABIN PRESSURE MODE –STEP 2.................................................................. 83
FIGURE F.15 CABIN PRESSURE MODE –VENTING PROCESS............................................ 84
FIGURE F.16 CABIN PRESSURE MODE –STEP 2.................................................................. 84
FIGURE G.1 LOW-PRESSURE HOSE ...................................................................................... 85
FIGURE G.2 MAIN MENU, PAGE 2........................................................................................... 85
FIGURE G.3 ADDITIONAL FUNCTIONS SCREEN.................................................................... 86
FIGURE G.4 IBF STEP 1 SCREEN............................................................................................ 86
FIGURE G.5 WARNING SCREEN ............................................................................................. 87
FIGURE G.6 IBF STEP 2 SCREEN............................................................................................ 87
FIGURE G.7 IBF CONTROL MODE SCREEN........................................................................... 88
FIGURE G.8 KEYPAD SCREEN................................................................................................ 88
FIGURE G.9 VENT TO AMBIENT SCREEN .............................................................................. 89
FIGURE G.10 UNIT SAFE AT GROUND.................................................................................... 89

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LIST OF TABLES
PAGE
TABLE 1 PHYSICAL CHARACTERISTICS.................................................................................. 5
TABLE 2 ENVIRONMENTAL....................................................................................................... 5
TABLE 3 CONFORMITY.............................................................................................................. 5
TABLE 4 AERONAUTICAL SPECIFICATIONS............................................................................ 6
TABLE 5 PRESSURE UNITS SPECIFICATIONS........................................................................ 7
TABLE 6 DISPLAY UNITS........................................................................................................... 7
TABLE 7 ENGINE PRESSURE RATIO TEST TABLE................................................................ 57
TABLE 8 AERONAUTICAL LIMITS PROFILE –(DEFAULT)..................................................... 64
TABLE 9 AERONAUTICAL LIMITS PROFILE –(MAX).............................................................. 64
TABLE 10 PRESSURE LIMITS PROFILE –(DEFAULT) ........................................................... 65
TABLE 11 PRESSURE LIMITS PROFILE –(MAX).................................................................... 65
TABLE 12 EPR LIMITS PROFILE –(DEFAULT) ....................................................................... 65
TABLE 13 EPR LIMITS PROFILE –(MAX)................................................................................ 66

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INTRODUCTION
1. PUBLICATION BREAKDOWN
This user instruction manual establishes the standards of operation for the 1811NG, Pitot-
Static Test Set.
Its purpose is to provide enough information for the personnel unfamiliar with this unit to
understand it, identify its parts, and operate it in accordance with proper procedures, operating
techniques, precautions and limitations.
Note: The manufacturer has designed this equipment to be safe when operated using the
procedures and instructions detailed in this manual. Do not use this equipment for any
other purpose than that stated, as the protection provided by the equipment may be
impaired.
2. INFORMATION PROVIDED WITH THE TEST SET
In addition to this User Instruction Manual, the Test Set is delivered with the four information
items described below.
A. The identification label, example (similar to Figure 1), located on the front bulkhead of the
Test Set, provides the following information:
Manufacturer Name CE Marking
Designation of Equipment
Equipment Part Number
Equipment Model Number Equipment Serial Number
Equipment Modification (if applicable) Equipment Options (if applicable)
Figure 1 Identification Label

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B. The Owner's Warranty Registration card (refer to Figure 2), is to be completed by the
owner and returned to Barfield, Inc. within ten (10) days of purchase to ensure automatic
update of printed matter and validation of warranty.
Figure 2 Owner Warranty Registration Card
C. Each new or re-certified unit is delivered with a Certificate that shows the date when the
unit was tested by the manufacturer, its serial number, and when the next certification is
due. This certificate confirms that the unit performed according to its design specifications.
D. The 1811NG Limited Two-Year Warranty can be seen in Figure 3.
3. RECERTIFICATION
A. The Test Set has a one-year recertification requirement. Maintenance required by this unit
must be performed by qualified technicians in a shop equipped with the necessary tooling
and facilities. Contact Barfield for Maintenance and Calibration requirements.
B. At the conclusion of the power up initialization the 1811NG will display the date when it
was “Last Calibrated” in the format of Day–Month-Year and will provide the user with the
number of days remaining before its calibration due date with a statement of “Cal due” in
### days format.
CAUTION: Recertification by a calibration/repair shop not possessing the necessary
technical knowledge, documentation, special test equipment, tooling and
standards will adversely affect the accuracy/capability of the 1811NG for
testing the aircraft.
C. The process of Calibration requires that the Unit Under Test (UUT) be compared to
Certified Traceable Standards having an accuracy at least 4 times better than the UUT.
Adjustments are made to the UUT in order to align the UUT to the exact values of the
Standards so that the errors at all required test points are zeroed out.
Conducting a simple Bench Check (*) (Verification) is quite different to the calibration
process as no adjustments are made to the UUT, so long as test points fall within the
specified allowable tolerances. This method disregards the stability specification for the
unit since any number of test increments could fall just within the maximum allowable error.
This may result in units being returned to service and drifting out of tolerance a few months
later.

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Note(*):Barfield does not consider a Bench Check (Verification) process to be a suitable or
responsible alternative to an actual calibration/realignment of the measurement
system’s linearity accuracy. Barfield does not endorse this practice for obvious reason as
the test set cannot be guaranteed to meet its designed accuracy specification and
especially so under varying operating temperature situations.
4. MOBILE DEVICE’S APP INFORMATION
Visit the Apple App Store or Google Play App Store to download the free application, “Barfield
ADTS”, onto your iOS or Android device (not supplied).
You can also check Barfield’s website to be redirected to the app store at:
https://www.barfieldinc.com/en/services-and-offers/ground-support-test-equipment
Barfield’s innovative app transforms any iOS and Android tablet or cellphone into a wireless
remote control for the 1811NG.
The app includes all necessary software to remotely operate the 1811NG using its factory
enabled, free, embedded, secure Wi-Fi (refer to Appendix E: Wi-Fi Connection Procedure).
Additionally, the app will detect whether a new firmware version is available when connected
to the 1811NG and automatically prompt the user to proceed with the upgrade if necessart
(refer to document 42-101-01175_01178 for more detailed information).
5. SOFTWARE UPDATE
A pop up window will appear every six (6) months on the screen, reminding the user to verify
the latest software revision. Press “continue” to dismiss the message. Please, check Barfield’s
website regularly for the latest software updates and releases. Also, set up your mobile device
for automatic updates of Barfield’s ADTS app.
6. TEST SET EQUIVALENT
The Barfield 1811NG Pitot Static Test Set is a suitable substitute for the Barfield 1811D,
1811G, 1811GA, 1811H, 1811HA and DPS300 Pitot Static Test Sets for all aircraft
applications that fall within the range of 55,000 feet altitude, 6,000 feet/minute rate of climb
and 650 knots airspeed.

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DPS1000/1811NG LIMITED TWO YEAR WARRANTY
BARFIELD INC. ("BARFIELD") warrants only to the original Purchaser of this DPS1000/1811NG product from
BARFIELD or an authorized distributor that this product will be free from defects in material and workmanship
under normal use and service for two years after date of purchase. BARFIELD reserves the right, before having
any obligation under this limited warranty, to inspect the damaged BARFIELD product, and all costs of shipping
the DPS1000/1811NG product to BARFIELD for inspection shall be borne solely by the Purchaser. In order to
recover under this limited warranty, Purchaser must make claim to BARFIELD within 60 days of occurrence,
and must present acceptable proof of original ownership (such as a purchase order, invoice, warranty card
registration, or other documentation BARFIELD deems acceptable) for the DPS1000/1811NG product.
BARFIELD, at its option, shall repair or replace the defective unit covered by this warranty. Please retain the
dated sales receipt as evidence of the original purchaser's date of purchase. You will need it for any warranty
service. In order to keep this limited warranty in effect, the DPS1000/1811NG product must have been handled
and used as prescribed in the instructions accompanying this product. This limited warranty does not cover any
damage due to accident, misuse, abuse or negligence. This limited warranty is non‐transferable and does not
apply to any purchaser who bought the DPS1000/1811NG product from a reseller or distributor not authorized
by BARFIELD, including but not limited to purchases from internet sites. This warranty does not affect any other
legal rights you may have by operation of law. Contact BARFIELD at www.Barfieldinc.com or customer service
at (305) 894‐5506 for warranty service procedures.
DISCLAIMER OF WARRANTY
EXCEPT FOR THE LIMITED WARRANTY PROVIDED HEREIN, TO THE EXTENT PERMITTED BY LAW,
BARFIELD DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ALL WARRANTIES OF
MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE. TO THE EXTENT THAT ANY
IMPLIED WARRANTIES MAY NONETHELESS EXIST BY OPERATION OF LAW, ANY SUCH WARRANTIES
ARE LIMITED TO THE DURATION OF THIS WARRANTY. SOME STATES/PROVINCES DO NOT ALLOW
LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THE ABOVE LIMITATIONS MAY NOT
APPLY TO YOU.
LIMITATION OF LIABILITY
REPAIR OR REPLACEMENT OF THIS PRODUCT, AS PROVIDED HEREIN, IS YOUR EXCLUSIVE
REMEDY. BARFIELD SHALL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL OR CONSEQUENTIAL
DAMAGES, INCLUDING, BUT NOT LIMITED TO, LOST REVENUES, LOST PROFITS, LOSS OF USE OF
SOFTWARE, LOSS OR RECOVERY OF DATA, RENTAL OF REPLACEMENT EQUIPMENT, DOWNTIME,
DAMAGE TO PROPERTY, AND THIRD‐PARTY CLAIMS, ARISING OUT OF ANY THEORY OF RECOVERY,
INCLUDING WARRANTY, CONTRACT, STATUTORY OR TORT. NOTWITHSTANDING THE TERM OF ANY
LIMITED WARRANTY OR ANY WARRANTY IMPLIED BY LAW, OR IN THE EVENT THAT ANY LIMITED
WARRANTY FAILS OF ITS ESSENTIAL PURPOSE, IN NO EVENT WILL BARFIELD'S ENTIRE LIABILITY
EXCEED THE PURCHASE PRICE OF THIS PRODUCT. SOME STATES/PROVINCES DO NOT ALLOW THE
EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE
LIMITATION OR EXCLUSION MAYNOT APPLY TO YOU. THIS WARRANTY GIVES YOU SPECIFIC LEGAL
RIGHTS AND YOU MAY ALSO HAVE OTHER RIGHTS THAT VARY FROM STATE TO STATE AND
PROVINCE TO PROVINCE.
BARFIELD INC.
4101 NW 29th Street
Miami, Florida 33142, USA
Form 7.5.3‐20
Dated 01/07/2015, Rev. 2
Figure 3 Limited 2 Year Warranty

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CHAPTER 1: GENERAL
1. INTENDED USE
A. The BARFIELD INC. 1811NG Imperium Series (P/N: 101-01178) is a self-contained flight
line Pitot-Static Test Set. The 1811NG provides complete measurement and pneumatic
control for performing leak testing, functional tests of air data instruments, components and
systems.
B. The 1811NG Digital Pitot Static Test Set meets the requirements as described in Federal
Aviation Regulation Part 43, Appendix-E, which defines the requirements for accuracy of
an aircraft’s altimeter and as such is reference for the accuracy of Pitot-Static testers.
WARNING: The 1811NG is NOT suitable for use on aircraft with RVSM Accuracy
requirements.
2. SPECIFICATIONS
A. Physical Characteristics
Size (H, W, L)
9.0 in. (22.86 cm), 14.8 in. (37.6 cm), 22.2 in. (56.38 cm)
Weight
35 lbs. (15.9 kg)
Table 1 Physical Characteristics
B. Environmental
Operating Altitude
7,000 ft (2,134 m)
Operating Temp.
0°C to 50°C (32°F to 122°F)
Storage Temp.
-20°C to 60°C (-4°F to 140°F)
Operating Humidity
0 to 90% RH (non-condensing)
Power
100-120/200-240VAC, 50/60Hz, 400VA
Table 2 Environmental
C. Conformity
Electrical Safety
EN61010-1:2010
Pressure Safety
Pressure Equipment Directive - Class:
Sound Engineering Practice (SEP)
EMC
EN61326-1:2013 (Class A) (*)
Installation Category
Category II
Pollution Degree
2
CE marked
Refer to page iv
Table 3 Conformity
Note (*): Wi-Fi disabled.

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D. Performance
WARNING: The 1811NG is NOT suitable for RVSM Accuracy requirements.
Aeronautical
Ps Channel
Altitude
ALT
Rate of
Climb
ROC
Pt Channel
Calibrated
Airspeed
CAS
Rate of
CAS
RtCAS
Mach
Units
Feet
ft/min
knots (kts)
kts/min
-
Operating
Range
-1,800 to 55,000
0 to 20,000
0 to 6,000 (*1)
0 to 650
50 to 600
(*2)
0 to 2.8
Accuracy
0.02% FS (*3)
± 7 ft @ 0 ft
± 14 ft @ 20,000 ft
± 20 ft @ 30,000 ft
± 30 ft @ 40,000 ft
± 48 ft @ 50,000 ft
± 2 % of
value
0.05% FS (*5)
± 1.0 kts @ 20 kts
± 0.5 kts @ 50 kts
± 0.3 kts @ 100 kts
± 0.2 kts @ 200 kts
± 0.2 kts @ 400 kts
± 0.2 kts @ 650 kts
± 2 % of
value
Better than
± 0.005
MACH
> 0.1
Repeatability
0.006% FS
± 2 ft @ 0 ft
± 5 ft @ 30,000 ft
± 15 ft @ 50,000 ft
-
± 0.5 kts @ 20 kts
± 0.2 kts @ 50 kts
± 0.1 kts @ 650 kts
-
0.001
rising to
0.005
Resolution
1
1
0.1
1
0.001
Stability
(12 month) (*4)
0.025% FS
-
0.025% FS
-
-
Table 4 Aeronautical Specifications
Note (*1): ROC (with 125 cu.in volume).
Note (*2): RtCAS (with 75 cu.in volume) Default is 300 kts/min operating in Aeronautical
mode.
Note (*3): Specification based on typical (0.02% FS) accuracy. Maximum error is 0.04% FS.
Note (*4): This tolerance represents the stability over a 12-month period. If tighter
tolerances are required, the calibration interval should be reduced or establish
proof of stability.
Note (*5): Specification based on typical (0.05% FS) accuracy. Maximum error is 0.1% FS.

56-101-01178 Revision K Page | 7
Pressure Units
Ps
Channel
Ps
Rate of
Change
ROC
Qc Channel
(Note: Pt = Qc + Ps)
RtQc
Rate of
Qc
EPR
Units
inHg (abs)
inHg/min
inHg (diff)
inHg/min
Ratio: Pt7 /
Pt2
Operating
Range
2.693 to
38.0
0.1 to 16
0.0 to 40 (*3)
0.5 to 10
0.1 to 10
Measurement
up to 2.693
0.1 to 16
0.0 to 40 (*3)
0.5 to 10
0.1 to 10
Accuracy
0.02% FS (*1)
± 0.0076
inHg
± 2 % of
value
± 0.020 inHg
± 2 % of
value
0.01
Repeatability
± 0.002 inHg
-
0.001 rising to 0.005
-
-
Resolution
0.0001
-
0.0001
-
1.000
Stability
(12 month) (*2)
0.025% FS
-
0.025 % FS
-
-
Table 5 Pressure Units Specifications
Note (*1): Regarding Ps Channel: Specification based on typical accuracy (0.02% FS).
Maximum error is 0.04% FS.
Regarding Qc Channel: Specification based on typical accuracy (0.05% FS).
Maximum error is 0.10% FS.
Note (*2): This tolerance represents the stability over a 12-month period. If tighter
tolerances are required, the calibration interval should be reduced or establish
proof of accuracy/stability.
Note (*3): Pt max = Ps max + Qc max = 38.0 + 40.0 = 78 inHg
Note: Accuracy specifications are based on performing the 12-month Recertification
cycle and when connected to a leak tight system.
Note: Specifications are subject to change without notice.
E. Display Units
CAS
kts, km/h, mph
ALT
ft , m
MACH
n/a (dimensionless ratio)
ROC
ft/min, m/min
Pt, Ps, Qc
inHg, mbar, psia, psid, kPa, mmHg, inH2O@4°C, inH2O@20°C,
inH2O@60°F
EPR
inHg, mbar, psi, mmHg, kPa, hPa, inH2O@20°C, inH2O@4°C,
inH2O@60°F
Table 6 Display Units

56-101-01178 Revision K Page | 8
F. Pressure Media
Two internal high reliability electric pumps generate the required pressure and vacuum.
The 4-head vacuum pump is configured to provide each channel (Ps & Pt) with its own
dedicated 2-headed vacuum source. The pressure pump is a single head unit and supplies
both channels (Ps & Pt) with a common pressure supply.
G. Transducers
The Ps channel uses an absolute pressure transducer while the Pt channel uses a
differential pressure transducer.
H. Input Power
Electronic switcher power supply module with auto input voltage detection circuitry for an
A/C input voltage of 100-120/200-240VAC @ 50-60Hz.
I. Fuse Protection
Fuse overload protection is provided by a Miniature Fuse, 5 x 20 mm, Time-Lag T, L, 250
VAC, 4A is installed on the fuse compartment of the power entry module.
Note: For 200-240 VAC Operation, 5x20 mm, Time-Lag T, L, 250 VAC @ 2A is
recommended.
3. INSTRUCTIONS FOR USE
A. With the Barfield 1811NG Pitot and Static ports connected via the hoses (included) and
mating aircraft adapters (not included) to their respective ports on the aircraft, the user is
able to enter pressures or equivalent aeronautical values using the Test Set’s touch screen
input display to drive the aircraft system to the required points of test.
B. Optionally, the 1811NG Test Set can be controlled using a Wi-Fi enabled tablet or
cellphone, either Android or iOS (not supplied), as a wireless remote-control device. Barfield
provides a custom App which is available as a free download from the Google Play Store and
the Apple App Store. The tablet/mobile display will exactly mirror that of the tester so that the
transition to remote control is seamless. Please refer to Appendix E: Wi-Fi Connection
Procedure for more information.
C. Please refer to Chapter 4: OPERATIONS for complete operating instructions.
D. Please refer to Appendix D for the Menu Navigation.