Shadin Avionics AIS-380 Installation Manual

AIS-380 FUEL FLOW ADAPTER

P/N: 833811-00

INSTALLATION MANUAL

MANUAL P/N: M833811-00

REV C

Shadin Avionics

6831 Oxford Street

St. Louis Park, MN 55426

USA

Sales: [phone]

Customer Service: [phone]

www.shadin.com

M833811-00 Shadin Avionics

INSTALLATION MANUAL

AIS-380 FUEL FLOW ADAPTER

Rev: C

P/N 833811-00

Page: 2 of 20

REV

DATE

APP’D/ERN

CHANGE

–

5/9/2013

RJW

Baseline Release

A

6/14/2013

1306/004

Sections for accuracy and incomplete system description added

B

11/24/2014

1411/002

Added DC Fuel Flow Installation Application

C

01/15/2019

1901/001

Updated Sections 1.2 and 1.5, Table 1, Figure 4

REVISION LOG

Shadin Avionics 6831 Oxford Street St. Louis Park, MN 55426 USA

M833811-00 Shadin Avionics

INSTALLATION MANUAL

AIS-380 FUEL FLOW ADAPTER

Rev: C

P/N 833811-00

Page: 3 of 20

Table of Contents

REVISION LOG 2

1 OVERVIEW 4

2 INSTALLATION 11

3 CONFIGURATION TOOL 12

4 ENVIRONMENTAL QUALIFICATION FORM (EQF) 19

5 INSTALLATION DRAWINGS AND INSTALL KIT PARTS LIST 20

Shadin Avionics 6831 Oxford Street St. Louis Park, MN 55426 USA

M833811-00 Shadin Avionics

INSTALLATION MANUAL

AIS-380 FUEL FLOW ADAPTER

Rev: C

P/N 833811-00

Page: 4 of 20

AIS

-380

Fuel Flow Adapter

ARINC 429

HS/LS Receiver 1

ARINC 429

HS/LS Receiver 2

ARINC 429

HS/LS Transmitter 1

ARINC 429

HS/LS Transmitter 2

SERIAL 1

RS-232

Maintenance

SERIAL 2

RS-232 Air Data/

Fuel Flow Data

Output

SERIAL 4

RS-422 Fuel Flow

Parameter Receiver

Pulse/Freq 1

Input

Pulse/Freq 2

Input

1 OVERVIEW

The information in this manual is subject to change without notification.

1.1 THE MANUAL
This manual is intended to determine a proper installation of the AIS-380 FUEL FLOW ADAPTER. Installation

instructions should be read and followed.

1.2 PRODUCT DESCRIPTION
The AIS 380 Fuel Flow is a product designed to provide fuel flow on a digital output bus to a display or GPS

receiver that can receive ARINC 429 or RS-232. The AIS Fuel Flow receives a digital frequency signal from a
fuel transducer or equivalent, ARINC 429 air data, and ARINC 429 heading. The AIS Fuel Flow combines this
data and re-transmits it on an ARINC 429 or RS-232 serial output bus.

The ARINC 429 speed, K-Factor, single/twin engine selection, fuel density, and serial output formats are
configurable using the PC based configuration tool referenced later in this installation manual.

There is an additional RS-422 receive port for a custom application designed specifically for the Bell 412 EPI
engine upgrade STC. This port will receive information regarding the fuel system from an ADIU (Advanced
Digital Interface Unit).

A basic overview is shown below in Figure 1.

Figure 1: AIS-380 Fuel Flow Adapter Overview

Shadin Avionics 6831 Oxford Street St. Louis Park, MN 55426 USA

M833811-00 Shadin Avionics

INSTALLATION MANUAL

AIS-380 FUEL FLOW ADAPTER

Rev: C

P/N 833811-00

Page: 5 of 20

The features which are applicable to all standard installations are listed below:

• Two +12 VDC power supplies are available for powering fuel flow transducers

• ARINC inputs are echoed to the ARINC outputs

• ARINC speed (high or low) is configurable. Each ARINC c hannel input and output speed is matched

when configured, e.g. ARINC channel 1 input channel set f or high speed res ults in ARINC c hannel 1
output set for high speed

• Fuel Flow labels 244 (Total Fuel Flow) and 347 (Left and Right independent Fuel Flow based on SDI)
are generated and output at an 8 Hz rate when conf igur ed f or nor mal fuel flow format on both ARINC
429 outputs

Specific features for the Bell 412 EPI Installation:

• Fuel Flow labels 351 (Left Fuel Flow) and 352 (Right Fuel Flow) are generated and output at an 8 Hz
rate when configured for Bell fuel flow format on both ARINC 429 outputs

• The AIS-380 accepts Bell serial fuel flow parameters on Serial 4 RS-422 port

Shadin Avionics 6831 Oxford Street St. Louis Park, MN 55426 USA

M833811-00 Shadin Avionics

INSTALLATION MANUAL

AIS-380 FUEL FLOW ADAPTER

Rev: C

P/N 833811-00

Page: 6 of 20

1.3 SPECIFICATIONS
Physical Specifications
Dimensions: 1.57H x 6.90L x 4.24W (inches)
Weight: 0.7 lbs.

Electrical and Functional
Power Supply Voltage: +28VDC Nominal
Supply Current: 100mA at 28VDC

Environmental RTCA/DO-160F
Categories: [A4X]BBB[R(B,B1) U2(F, F1)]XXXXXXZ[BXX]AZ[CC][RR]M[XXJ33]XXAX
Operating Temperature: -40° to +70°C
Operating Altitude: Up to 42,000 ft.
Storage Temperature: -55° to +85°C
In-Flight loss of Cooling: Equipment can run indefinitely with no cooling
Regulatory: TSO-C44c INCOMPLETE SYSTEM
Software: DO-178B Level C
MIL-HDBK-217 MTBF: Greater than 20,000 hours

MTBF Definition:
Mean time between failures (MTBF) is calculated following MIL-HDBK-217 guidance as a starting point, when

available field or vendor data is used in place of MIL-HDBK-217 predictions. The AIS-380 prediction is for an
environment of airborne, inhabited, cargo. At 20°C the prediction is 36,367 hours and at 40°C it is 22,607
hours.

1.4 INPUTS
The AIS-380 accepts the following inputs

• Two Discrete Fuel Flow pulse/frequency signals

• One RS-232 Serial Interface for Maintenance

• One RS-422 Serial Interface compatible to fuel flow parameters

• Two ARINC 429 High Speed or Low Speed signals with Air Data and Heading labels as follows:

o Channel 1: 102, 203, 201, 205, 206, 207, 210, 211, 212, 213, 234, 235, 236, 237, 312, 314,

350, 353

o Channel 2: 320

1.5 OUTPUTS
The AIS-380 provides the following outputs

• ARINC label set described in section 1.4 forwarded from input

• Two ARINC 429 High Speed or Low Speed signals

o Labels 244 and 347 or Labels 351 and 352

• One RS-232 Serial Interface with fuel flow data

Shadin Avionics 6831 Oxford Street St. Louis Park, MN 55426 USA

M833811-00 Shadin Avionics

INSTALLATION MANUAL

AIS-380 FUEL FLOW ADAPTER

Rev: C

P/N 833811-00

Page: 7 of 20

ARINC 429 Input

ARINC 429 Output

ARINC 429 Output Bell 412 EPI

Table 1 below defines the ARINC labels which are received at the input of the AIS-380 and the labels that are
transmitted out.

Table 1 – ARINC Data Transmission

ARINC 429
Channel 1

ARINC 429
Channel 2

102, 203, 201, 205, 206,
207, 210, 211, 212, 213,
234, 235, 236, 237, 312,
314, 350, 353

320

102, 203, 201, 205, 206, 207,
210, 211, 212, 213, 234, 235,
236, 237, 312, 314, 350, 353,
244, 347

320, 244, 347 320, 351, 352

102, 203, 201, 205, 206, 207,
210, 211, 212, 213, 234, 235,
236, 237, 312, 314, 350, 353,
351, 352

Labels 244 and 347 are the labels generated by the AIS-380 and are shown in bold at the output of
Channel 1. Labels 351 and 352 shown in bold are specific to the Bell 412 EPI installation.

All of the data listed in the ARINC 429 Output column in T able 1 above is sent out on SERIAL 2 in RS-232
format.

1.6 ACCURACY
Fuel Flow conversion based on ± 10Hz of max input of 2 KHz typical accuracy is 0.1% of full scale with max

of 0.5% of full scale.

Shadin Avionics 6831 Oxford Street St. Louis Park, MN 55426 USA