All Weather Inc 1190 User manual

All Weather Inc. • 1065 National Drive • Sacramento, CA 95834 • USA • 800.824.5873 • www.allweatherinc.com
User’s
Manual
1190-001
Rev.AA
Model
1190
Data
Collection
Platform

1190 Data Collection Platform User's Manual
Copyright © 2011–2021, All Weather, Inc.
All Rights Reserved. The information contained herein is proprietary and is provided solely for the
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Disclaimer
The information and specifications described in this manual are subject to change without notice.
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1190 Data Collection Platform User's Manual
1-3
Revision History
Revision
Date
Summary of Changes
Y
2020 Feb 14
Updated M403316-003 Sheet 4, M403316-019, 3000-A-019, and 3000-B-019 to reflect
new Model 20981 UHF Data Radio installation.
Z
2020 Apr 30
Added explanation of low-voltage battery cut-off device to Backup Battery option
AA
2021 Feb 5
Updated 8339-FAA Ceilometer for both RS-232 and RS-485 connections based on v1.76
M595181-00 firmware, updated 3000 A 019 and 3000-B-019 in Chapter 8 with latest
revision for 8339-FAA Ceilometer without the need for “daughter boards” in the DCP

1190 Data Collection Platform User's Manual
TABLEOFCONTENTS
1. INTRODUCTION.................................................................................................................1
2. INSTALLATION...................................................................................................................2
2.1 DCP Installation.....................................................................................................................2
2.2 Sensor Wiring ........................................................................................................................2
2.3 Communication Connections.................................................................................................3
2.4 Serial Sensor Wiring..............................................................................................................4
2.5 Power Wiring.........................................................................................................................4
3. OPERATION.......................................................................................................................6
3.1 General...................................................................................................................................6
3.2 Maintenance Switch...............................................................................................................6
3.3 DIP Switches..........................................................................................................................6
3.4 Display Screens......................................................................................................................7
3.5 LED Indicators.....................................................................................................................15
4. CALIBRATION ..................................................................................................................16
5. MAINTENANCE................................................................................................................17
6. WARRANTY......................................................................................................................18
7. SPECIFICATIONS ............................................................................................................19
8. DRAWINGS.......................................................................................................................21

1190 Data Collection Platform User's Manual
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1. INTRODUCTION
The Model 1190 Data Collection Platform (DCP) is used with Automated Weather Observing Systems (AWOS)
for collecting and processing sensor signals. Located at the sensor station, the DCP collects data from the
sensors, performs error detection on the received information, converts the sensors’ data into engineering units,
and transmits a message packet containing sensor data and status information to the Central Data Platform
(CDP) once every five seconds.

1190 Data Collection Platform User's Manual
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2. INSTALLATION
2.1 DCP INSTALLATION
The Model 1190 DCP mounts to the sensor tower
using Unistrut; the optional barometric pressure (Model
7150 or 7190) and radio kits mount inside the DCP
enclosure. Installation drawings in the Drawings chap-
ter of this manual illustrate the installation proce-
dures. Refer to those drawings when installing the
DCP (1190-007), the 7150 or 7190 barometric pres-
sure sensor (M403316-003), and the 20980-A radio
(M403316-003).
Two or three junction boxes—1) AC power,
2) ceilometer and visibility signal, and 3) landline
(present only when a radio data link is not used)—that
were installed during the site preparation procedure
are located at the edge of the tower foundation. After
installing the DCP on the tower, install flexible or
rigid conduit between the junction boxes and the
holes in the underside of the DCP enclosure. Route
the wires from the junction boxes through the conduit
into the DCP.
Wiring diagrams 903-A-019, 903-B-019, 903-C-019,
903-D-019, 903-E-019, 903-G-019, 903-H-019, and
903-HH-019 in the Drawings chapter of this manual
illustrate the wiring connections described below.
2.2 SENSOR WIRING
The AWOS sensors are connected to the DCP at a
series of terminal blocks along the left side of the
backplane.
TB2
The MARS (Motor Aspirated Radiation Shield),
Wind Speed sensor, and Temperature/Relative
Humidity sensor connect to TB2.
TB3
The Rain Gauge, Auxiliary sensor, Wind Direc-
tion sensor, and legacy Day/Night sensor connect
to TB3.
TB4
The Ceilometer, Visibility Sensor, and Thun-
derstorm/Lightning Sensor connect directly to
TB4. The Present Weather Sensor is connected to
a serial sensor interface card that is also con-
nected to TB4.
H4
The Freezing Rain Sensor is connected to a serial
sensor interface card that is accessed via H4.
2.2.1 TB2—MARS Wiring
Power for a Model 8190 MARS unit is obtained at
pins 9 and 10 of TB2.
1. Connect the WHITE positive lead of the MARS
power cable to pin 9.
2. Connect the BLACK negative lead of the MARS
power cable to pin 10.
2.2.2 TB2—Wind Speed Wiring
Either a Model 2030 Micro Response Anemometer or
a Model 2100 Skyvane can be used to sense wind
speed. The wind speed sensor is wired to pins 5–8 of
TB2.
2030 Wiring
When wiring a Model 2030 Micro Response Ane-
mometer to the DCP, connect as follows:
1. Connect the BLACK wire to pin 5 of TB2.
2. Connect the WHITE wire to pin 6 of TB2.
3. Connect the GREEN wire to pin 7 of TB2.
4. Connect the RED wire to pin 8 of TB2.
2100 Wind Speed Wiring
When wiring a Model 2100 Skyvane to the DCP,
connect the wind speed portion as follows:
1. Connect the RED wire to pin 5 of TB2.
2. Connect the WHITE wire to pin 6 of TB2.
3. Connect the GREEN wire to pin 7 of TB2.
4. Connect the BLACK wire to pin 8 of TB2.

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2.2.3 TB2—Temperature/Relative
Humidity Wiring
The Model 5190 Temperature/Relative Humidity sen-
sor is wired to pins 1–4 of TB2 as follows:
1. Connect the BROWN temperature signal wire
(TEMP) to pin 1 of TB2.
2. Connect the WHITE relative humidity signal wire
(RH) to pin 2 of TB2.
3. Connect the GREEN positive power lead (V+) to
pin 3 of TB2.
5190-D
4. Connect the GRAY, BLUE and SHIELD wires to
pin 4 of TB2.
5190-F
4. Connect the GRAY, YELLOW and SHIELD
wires to pin 4 of TB2.
2.2.4 TB3—Legacy Day/Night Sensor
Wiring
The legacy Model 83339-A Day/Night sensor’s two
wires connect to pins 9 and 10 of TB3.
1. Connect the positive lead to pin 9.
2. Connect the negative lead to pin 10.
Note: Another Day/Night sensor that is part of 8364-E
and 8365 Visibility Sensor installations provides the
Day/Night sensor output, and the Model 83339-A is
then not installed.
2.2.5 TB3—Rain Gauge Wiring
The Model 6011 or 6021 Rain Gauge connects to pins
7 and 8 of TB3. These two pins are interchangeable,
allowing the two rain gauge wires to be connected to
either pin.
2.2.6 TB3—Auxiliary Sensor Wiring
An auxiliary voltage output sensor (such as a solar
radiation sensor) can be connected to the DCP via
pins 5 and 6 of TB3.
1. Connect the positive lead from the auxiliary
sensor to pin 5 of TB3.
2. Connect the negative lead from the auxiliary
sensor to pin 6 of TB3.
2.2.7 TB3—Wind Direction Wiring
The wind direction sensor is wired to pins 1–3 of
TB3. Either a Model 2020 Micro Response Vane or a
Model 2100 Skyvane can be used.
2020 Wiring
When wiring a Model 2020 Micro Response Vane to
the DCP, connect as follows:
1. Connect the WHITE wire to pin 1 of TB3.
2. Connect the RED wire to pin 2 of TB3.
3. Connect the BLACK wire to pin 3 of TB3.
2100 Wind Direction Wiring
When wiring a Model 2100 Skyvane to the DCP,
connect the wind direction portion as follows:
1. Connect the ORANGE wire to pin 1 of TB3.
2. Connect the GREEN wire to pin 2 of TB3.
3. Connect the BLUE wire to pin 3 of TB3.
2.2.8 TB3—+5 V Power
A +5 V output is available at pin 4 of TB3. This is
used as a test point by the Model 11920 Sensor
Simulator to verify the DCP’s +5 V power supply.
2.3 COMMUNICATION CONNECTIONS
The DCP can communicate with the CDP (Central
Data Platform) using one of three available methods:
RS-232, RS-485, or UHF Radio. Only one of these
methods can be in use at any one time, with the active
method determined by the settings of switch SW1.
(Refer to the DIP Switches section of the Operation
chapter of this manual for the required switch
settings.) Connections for RS-232 and RS-485
communication are found at TB4.
2.3.1 TB4—RS-232 Wiring
The distance between the DCP and CDP is generally
too great for RS-232 communication. The RS-232
port provided at pins 5–7 of TB4 is intended as a
maintenance port, allowing DCP operation to be
checked using a laptop computer. The three pins have
the following functions.
1. Pin 5 is data transmit (TX), and should be con-
nected to the laptop’s data receive (RX) line.

1190 Data Collection Platform User's Manual
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2. Pin 6 is data receive (RX), and should be con-
nected to the laptop’s data transmit (TX) line.
3. Pin 7 is ground (GND).
Note: Remember that only one communication method
can be in effect at any one time, and is determined by
the SW1 switch settings. If communication between
the DCP and CDP is via RS-485 or UHF radio, other
communication will cease while the RS-232 port is
activated.
2.3.2 TB4—-5 V Power
A –5 V output is available at pin 8 of TB4. This
is used as a test point by the Model 11920 Sensor
Simulator to verify the DCP’s –5 V power
supply.
2.3.3 TB4—CDP RS-485 Wiring
When RS-485 communication is used to communi-
cate with the CDP, pins 9 and 10 of TB4 are used to
make the connection.
1. Connect the positive lead of the RS-485 line from
the CDP to pin 9 of TB4.
2. Connect the negative lead of the RS-485 line
from the CDP to pin 10 of TB4.
3. Connect the ground lead of the RS-485 line from
the CDP to pin 7 of TB4.
2.3.4 TB4—Other RS-485 Connections
The two remaining RS-485 connections on TB4 (1–2
and 3–4) are used to connect RS-485 sensors such as
the 6490 Present Weather Sensor, 8364-E Visibility
Sensor, the 8339/8340 Ceilometers, and the 6500
Thunderstorm/Lightning Sensor.
Wait until all sensor wires have been inserted when
connecting more than one wire to a terminal block
pin before securing the terminal block screw.
Model 6490 Present Weather Sensor
1. Connect the WHITE wire (RS-485 (+)) from the
Model 6490’s serial sensor interface card signal
cable to pin 1 and connect the BLACK wire
(RS-485 (-)) to pin 2 of terminal block TB4.
2. Connect the RED ground wire to pin 7 of
terminal block TB4.
Model 8339/8340 Ceilometers
1. Connect the GREEN wire (RS-485 (+)) from the
Ceilometer signal cable to pin 3 and connect the
BROWN wire (RS-485 (-)) to pin 4 of terminal
block TB4.
2. Connect the BLACK ground wire to pin 7 of
terminal block TB4.
Model 8364-E Visibility Sensor
1. Connect the WHITE wire (RS-485 (+)) from the
Visibility Sensor’s signal cable to pin 3 and connect
the BLACK wire (RS-485 (-)) to pin 4 of terminal
block TB4.
2. Connect the RED ground wire to pin 7 of
terminal block TB4.
Model 6500 Thunderstorm/Lightning Sensor
1. Connect the WHITE wire (RS-485 (+)) from the
Model 6500’s signal cable to pin 1 and connect
the BLACK wire (RS-485 (-)) to pin 2 of terminal
block TB4.
2. Connect the RED ground wire to pin 7 of
terminal block TB4.
2.4 OTHER SERIAL SENSOR WIRING
When using a 2040/2040H/2040HH Ultrasonic Wind
Sensor, a 6495 Freezing Rain Sensor, or a legacy 8329
Ceilometer, a separate serial sensor interface “daughter
board” is added to the backplane to interface to each
sensor. The daughter boards are connected to one
another via an internal RS-485 bus. Connect the
sensors’ signal cables to their appropriate daughter
boards at TB1 pins 1–3 on the daughter board. The
daughter boards connect to H4 on the DCP.
2.5 POWER WIRING
2.5.1 AC Power Wiring
(See drawing M404802-004 in the Drawings chap-
ter.) AC line power is input to the DCP via the AC
Interface Board (M404802). Connect incoming AC
power to TB1 on the AC Interface Board (not TB1 on
the DCP backplane) as follows:
1. Connect the AC LINE (hot) wire to TB1, pin 1.
2. Connect the AC NEUTRAL wire to TB1, pin 2.
3. Connect the AC GROUND wire to TB1, pin 3.

1190 Data Collection Platform User's Manual
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2.5.2 DC, Battery Backup, and Solar
Power Wiring
TB1 on the DCP backplane provides input power
connections for a +15VDC supply (provided by the
AC Interface Board), backup battery power, and solar
power.
+15 V DC Power
The DCP is usually powered by the AC Interface
Board, which provides a +15VDC output. This +15 V
is input to the DCP at pins 5 (+) and 6 (-) of TB1.
1. Connect the positive lead from the AC Interface
Board to pin 5 of TB1.
2. Connect the negative lead from the AC Interface
Board to pin 6 of TB1.
Battery Power
An optional Battery Backup Kit with a battery charg-
ing circuit and a rechargeable 12 V backup battery
allows the DCP to remain powered during short
power outages. The Battery Backup Kit connects to
pins 1 (+) and 2 (-) of TB1.
1. Connect the positive lead to pin 1 of TB1.
2. Connect the negative lead to pin 2 of TB1.
The battery charging circuit on the DCP supplies cur-
rent to the battery at different levels and voltages
depending on the state of the battery. A low-voltage
battery cut-off device in the Battery Backup Kit is
used to power down the DCP during voltage sag
arising from excessive discharge of the battery. As
long as the battery voltage is above the 10.0 V dis-
connect voltage, the charging circuit senses the nor-
mal drop in battery voltage and provides a trickle
charge to charge the battery to its full capacity. The
charging process can be monitored by looking at two
LEDs on the DCP backplane.
When lit, the green BATT. CHARGE LED indicates
that the battery is charged to operating levels and/or
DC power is at normal levels.
When no battery is connected or when the battery
voltage drops below the disconnect voltage, the
BATT. CHARGE LED will be on as long as power
is being supplied to the DCP.
When lit, the red FLOAT CHARGE LED indicates
that the battery is being charged.
When the battery voltage falls below the disconnect
voltage and there is no power being supplied to the
DCP, the FLOAT CHARGE LED will be on and the
BATT. CHARGE LED will be off.
The table below summarizes the DCP Battery LED
status indications.
DC power normal, battery fully charged
DC power low, battery above cutoff voltage
DC power low, battery below cutoff voltage
DC power normal, battery below cutoff voltage
DC power normal, battery above reconnect
voltage but not fully charged
Solar Power
Where conditions permit, the DCP can be powered by
a solar power kit rather than by the AC Interface
Board. (Consult All Weather, Inc. for solar power
requirements for a given site.) The solar power unit
connects to TB1 at pins 3 (+) and 4 (-).
1. Connect the positive lead from the solar power
unit to pin 3 of TB1.
2. Connect the negative lead from the solar power
unit to pin 4 of TB1.

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3. OPERATION
3.1 GENERAL
The Model 1190 Data Collection Platform (DCP) is
designed for use with the All Weather, Inc. AWOS
aviation weather systems. The DCP collects data from
the AWOS sensors, performs error detection on the
received information, converts the sensors’ data into
engineering units, and transmits a message packet
containing sensor data and status information to the
Central Data Platform (CDP) once every five sec-
onds. The DCP interfaces to the following sensors:
Model 2100 or Model 2030 Wind Speed Sensor
Model 2100 or Model 2020 Wind Direction
Sensor
Model 2040/2040H/2040HH UltrasonicWind Sensor
Model 5190 Temperature and Relative Humidity
Sensor
Model 8190 Motor Aspirated Radiation Shield
(MARS)
Model 7150 or 7190 Barometric Pressure Sensor
Model 6011-A/B or 6021-A/B Rain Gauge
Model 8364-E Visibility Sensor, including
M403326 Day/Night Sensor
Model 8339-D/F/FAA Ceilometer
Model 6490 (OWI-120) Present Weather Sensor
Model 6500 Thunderstorm/Lightning Sensor
Model 6495 Freezing Rain Sensor
One auxiliary voltage input Sensor
(0–10 V DC)
Legacy Model 83339-A Day/Night Sensor
Legacy Model 8329-A/B Cloud Height Sensor
Legacy Model 8360, 8362-A/B, 8364-A/B/C/D
Visibility Sensors
3.2 MAINTENANCE SWITCH
A maintenance switch (SW3) is located on the DCP
backplane, on the lower right side of the board. This
momentary switch should be pressed any time
maintenance is performed on any part of the AWOS
system, prior to beginning maintenance. The switch
closure will be recorded by the CDP, thereby alerting
airport personnel that sensor data may be invalid (due
to calibration or maintenance checks being per-
formed), and keeping an ongoing log of maintenance
activity at the site. The ON state of the switch (shown
both on the DCP’s LCD display and at the CDP) will
be reset to OFF automatically after five minutes. This
switch must be pressed to enable several maintenance
functions from the keypad.
3.3 DIP SWITCHES
(Note: DIP switches SW1 and SW2 are set at the
factory according to each system’s specific
configuration.)
Two DIP switch assemblies (SW1 and SW2) on the
DCP backplane are used to set configuration para-
meters for the DCP. These switches are set at the
factory and should not need to be changed.
The first set of switches, SW1, specifies the commu-
nication method in use between the DCP and CDP
(RS-232, RS-485, or UHF Radio). Table 1 shows the
switch settings for each communication setup.
Table 1
SW1 Switch Settings
Comm.
Input/Output
Switches
1 2 3 4 5 6 7 8
RS-232 ON OFF OFF ON OFF OFF OFF OFF
RS-485 OFF ON OFF OFF ON OFF ON ON
UHF Radio OFF OFF ON OFF OFF ON OFF OFF

1190 Data Collection Platform User's Manual
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The second set of switches, SW2, is used to set the
station address, type of wind speed sensor, and the
auxiliary input gain.
The station address should normally be set to 0,
unless multiple DCPs are used.
The wind speed sensor setting should agree with
the model sensor used (2100, 2040, or 2030).
The auxiliary input gain can be set to 1, 10, or 50,
depending on the type of sensor (if any) connec-
ted to the auxiliary input.
The setting combinations for switch SW2 are shown
in Table 2.
Table 2
SW2 Switch Settings
Selection
Switches
1 2 3 4 5 6 7 8
Station 0 OFF OFF
Station 1 ON OFF
Station 2 OFF ON
Station 3 ON ON
2100 Wind Speed OFF OFF ON
2030 Wind Speed OFF ON OFF
2040/2040-H ON OFF OFF
Aux. Gain 1 ON OFF OFF
Aux. Gain 10 OFF ON OFF
Aux. Gain 50 OFF OFF ON
3.4 DISPLAY SCREENS
Located inside the DCP enclosure are a keypad and
LCD display screen, which are used for viewing
sensor data and performing maintenance checks. The
screens available at the DCP are explained in the
following sections. The * and # keys on the keypad
are used for moving through the screens. To move
down (to a higher numbered screen), press the # key.
To move up (to a lower numbered screen), press the *
key.
In the screen explanations below, unchanging screen
text is shown unbracketed, while explanations of the
data values for specific parameters are shown in
brackets.
3.4.1 Screen 1
This screen displays the value of the DCP address dip
switch SW1 and the status of the maintenance switch.
The maintenance switch will retain its ON value for 5
minutes after being pressed.
Address Switch = {dcp poll address}
Maint Switch {On / Off}
3.4.2 Screen 2
This screen identifies the type of wind speed sensor as
configured by SW2.
Wind Speed Sensor
{2030 Micro Response, 2100 Skyvane, or 2040
Ultrasonic}
3.4.3 Screen 3
This screen displays the current wind speed in knots,
and wind direction values. If the Model 2040 Ultra-
sonic sensor is used and an error is detected, the error
will be displayed in place of wind data.
Wind Speed {speed in knots to the nearest .1 knot}
Wind Dir {direction}True; or Wind Dir 999 if missin
3.4.4 Screen 4
This screen displays the current temperature and dew
point temperature in Celsius and the relative humidity
(RH).
Temp {temperature in degrees Celsius to nearest .1
degree C} RH {rh value}
Dew Point {dew point temperature in degrees Celsius
to nearest .1 degree C}
Values are set to 999 if missing.

1190 Data Collection Platform User's Manual
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3.4.5 Screen 5
This screen displays the current temperature and dew
point temperature in Fahrenheit and the relative
humidity (RH).
Temp {temperature in degrees Fahrenheit to nearest
.1 degree F} RH {rh value}
Dew Point {dew point temperature in degrees
Fahrenheit to nearest .1 degree F}
Values are set to 999 if missing
3.4.6 Screen 6
This screen displays the status of the 8190 MARS
fan and the system power source.
MARS Fan {OK or FAIL}
System Pwr: {AC or Battery}
If the fan fails, the 2090 CDP will stop reporting
temperature and dew point.
3.4.7 Screen 7
This screen displays the current value in volts and
counts of the auxiliary input channel.
Aux Inp {auxiliary input channel value in volts}
Counts=count value
Value is set to 99.999 if missing
3.4.8 Screen 8
This screen displays the values obtained from the
pressure sensor in inches of mercury.
Barometric PresinHg
P1 {pressure value 1} P2 {pressure value 2}
Values are reported to 0.001 inHg, and are set to
99.999 if missing
3.4.9 Screen 9
This screen displays the rainfall counter.
Rainfall {rain tip counter} tips
Counter values range from 0 to 99.
3.4.10 Screen 10
This screen displays the status of the 83339-A
Day/Night sensor if a Model 8364-E Visibility Sensor
is not installed.
Day - Night: {Day or Night}
3.4.11 Screen 11
This screen displays the output of the visibility
sensor: extinction coefficient and status.
Vis Ext Coeff: {extinction coefficient}
Status: {OK or ERR} {eight digit sensor status code}
3.4.12 Screen 12
This screen displays error messages associated with
the visibility sensor. If no errors are detected, the
display will show:
Visibility Sensor
Configuration Normal
If an error is detected, one of the following messages
will be displayed.
For Model 8364-E:
Setup Error
Clean Lenses
Configuration Error
Data Missing
3 Headed Operation
Other Error
For other models:
Clean Lenses
Data Missing
Vis Conf Err. Use STD
10s, 3min, ext, mi, 1200
CHECK Visibility
POWER and COMM LINES

1190 Data Collection Platform User's Manual
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3.4.13 Screen 13
This screen displays fault information for the
visibility sensor.
Visibility Failure
{visibility sensor decoded error(s)}
or
Visibility Sensor
{Status Normal or No input available}
Table 3 shows the visibility status codes that might
be displayed when an error is detected, along with
their meanings.
3.4.14 Screen 14
This screen displays status information for the 8364-
E’s Ambient Light Sensor.
Ambient Light Sensor
Status OK
or
Status Normal
or
Not Installed
or
ALS Err Clean Window
Table 3
Visibility Error Codes
Model 8364-E Model 8364-C
Code Meaning Code Meaning
MODE0D Mode 0 direct error MODE0 Mode 0 error
MODE0I Mode 0 indirect error MODE1 Mode 1 error
MODE1D Mode 1 direct error DIRECT Direct count error
MODE1I Mode 1 indirect error OFFSET Offset error
E0 Emitter 0 failure CROSSCHK Crosscheck error
E1 Emitter 1 failure E0 Emitter 0 failure
D0 Detector 0 failure E1 Emitter 1 failure
D1 Detector 1 failure D0 Detector 0 failure
XCHK Crosscheck error D1 Detector 1 failure
E0HT Emitter 0 heater failure E0HTR Emitter 0 heater failure
E1HT Emitter 1 heater failure E1HTR Emitter 1 heater failure
D0HT Detector 0 heater failure D0HTR Detector 0 heater failure
D1HT Detector 1 heater failure D1HTR Detector 1 heater failure
ALHT ALS head or Day/Night Sensor heater failure
PS Power supply failure

1190 Data Collection Platform User's Manual
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3.4.15 Screen 15
This screen displays the reporting value in
Candela of the Ambient Light Sensor.
Ambient Light Sensor
xxxxx Candela
or
Not Installed
3.4.16 Screen 16
This screen displays the status of the 8364-E’s Day/
Night Sensor
8364-E Day-Night
Missing
or
Day
or
Night
or
Not Installed
3.4.17 Screen 17
This screen displays the power status of the 8364-E.
8364-E
On Battery Power
or
On AC Power
or
Sensor Not Installed
3.4.18 Screen 18
This screen displays the status of the 8364-E’s power
supplies.
8364-E Power Supplies
OK
or
Sensor Not Installed
or
Fail {+5, +15, -15}
3.4.19 Screen 19
This screen displays counts of crc errors and timeout
errors for the visibility sensor. A crc error indicates
that data is not being received properly due to com-
munication line problems. Timeout errors indicate
that the sensor is not reporting. This may be caused
by communication line problems or a fault with the
sensor.
Visi00 CRC Err/Touts
{crc error counter and timeout error counter}
3.4.20 Screen 20
This screen displays cloud height sensor information:
cloud height and sensor status.
{No Clouds Detected or Cloud Base {height} Ft or
Cloud Data Missing}
Status: {OK or ERR} {four-digit sensor status}
3.4.21 Screen 21
This screen displays cloud height sensor status
information.
Ceilometer Stat {sensor status}
{decoded sensor status message}

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3.4.22 Screen 22
This screen displays cloud height sensor crc error
counts and timeout error counts. CRC errors indicate
that communication problems exist. Timeout errors
indicate that the sensor is not communicating and
may be caused by bad communication lines or a prob-
lem with the sensor.
Ceil00 CRC Err/Touts
{crc error counter and timeout error counter}
3.4.23 Screen 23
This screen displays the current present weather
sensor data.
Present Weather Data
{present weather sensor information}
Present weather data is in the format
WwwPppppSssss
where:
ww is the present weather code (see Table 4)
pppp is the rain rate in .001 inches per hour
ssss is the sensor status word, normally 0000.
3.4.24 Screen 24
This screen displays the status values from the present
weather sensor.
Present Weather Stat
{present weather status codes}
Present weather status is in the format:
XnnnLnnnKnnnHnnnTnnn
where: nnn is a three digit number
X indicates the start of the carrier raw data field
L indicates the start of the low raw data field
K indicates the start of the particle raw data field
H indicates the start of the high raw data field
T indicates the start of the temperature field
Table 4
Present Weather Codes
as reported by Model 6490
Code Meaning
L- Light Drizzle
L Moderate Drizzle
L+ Heavy Drizzle
R- Light Rain
R Moderate Rain
R+ Heavy Rain
P- Light Precipitation
P Moderate Precipitation
P+ Heavy Precipitation
S- Light Snow
S Moderate Snow
S+ Heavy Snow
ZL Freezing Drizzle
Freezing Rain
I- Light Ice Pellet (optional)
I Moderate Ice Pellet (optional)
I+ HeavyIce Pellet (optional)
A- Light Hail (optional)
A Moderate Hail (optional)
A+ Heavy Hail (optional)
No Precipitation
—Start-Up Indicator
ER Error Condition
CL Lenses require cleaning

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3.4.25 Screen 25
This screen contains status information from the
present weather interface computer. CRC errors
indicate that the computer is communicating, but not
correctly. It may indicate problems with the commu-
nications line. Timeout errors indicate that no data
was received from the sensor when expected.
PRWX00 CRC Err/Touts
{crc error counter and timeout error counter}
3.4.26 Screen 26
This screen displays information about the data being
received from the present weather sensor. BCC errors
indicate that the sensor is communicating, but not
correctly. The input message counter (“Inctr”) shows
the number of data packet requests from the DCP to
the sensor since power-up.
PRWX00 BCC Err/Inctr
{present weather sensor internal crc error counter and
input message counter}
3.4.27 Screen 27
This screen contains the counts for the Analog to
Digital negative and positive reference voltages.
These are normally 0 and 4095.
ADC Vref- {adc high reference count}
ADC Vref+ {adc low reference count}
3.4.28 Screen 28
This screen reports any detected lightning strikes
within 10 miles of the installation site. If the strikes
are less than 5 miles away, “TS Reported” will be
displayed. This will be voiced in the AWOS voice
output as “Thunderstorm at the airport”. If the strikes
are within 5-10 miles, “VCTS Reported” will be
displayed. This will be voiced in the AWOS voice
output as “Thunderstorm in the vicinity”. If no strikes
are detected, the message “No Strikes < 10 mi” will
be displayed. This screen is updated every minute.
Lightning Sensor Pg1
{“TS Reported” or “VCTS Reported” }
3.4.29 Screen 29
This screen reports any detected lightning strikes
more than 10 miles from the installation site, up to 30
miles away. If no strikes are detected, the message
“No Strikes > 10 mi” will be displayed. If the data
string exceeds the LCD’s capacity (20 characters), the
data will be continued on the next screen (Screen 30).
This screen is updated every minute.
Lightning Sensor Pg2
{“LTG_DSNT_” followed by direction in octants}
3.4.30 Screen 30
This screen displays data continued from the previous
screen when the amount of data for the 10-30 mile
range exceeds the LCD’s 20-character capacity. If the
data does not exceed 20 characters, this screen is a
duplicate of Screen 29.
Lightning Sensor Pg3
{“LTG_DSNT_” followed by direction in octants}
3.4.31 Screen 31
This screen reports the number of strikes detected
within the full measuring area (200 nautical mile
radius of the installation site) during the previous one
minute. The value is reported in strikes per minute.
If no strikes were detected, the message “Strike Rate
none” will be displayed. This screen is updated every
minute.
Lightning Sensor Pg4
{number of strikes recorded during previous 1 minute}
3.4.32 Screen 32
This screen shows the current operating mode of the
sensor. This should always read “Normal Weather
Data”, unless the sensor fails or is disconnected, in
which case it will read “Sensor Not Reporting”.
Lightning Sensor Pg5
Normal Weather Data

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3.4.33 Screens 33 and 34
These two screens show the most recent status
message received from the lightning sensor. The for-
mat of the status message is explained in the Model
6500 User’s Manual. Due to the length of the mes-
sage, it is split between two screens.
Lightning Sensor Pg6
{first 17 characters of status message; e.g.,
SPE00MAG@XXN00000}
Lightning Sensor Pg7
{remaining 11 characters of status message; e.g.,
R0000VB1.03}
3.4.34 Screen 35
The final lightning sensor status screen shows the
number of CRC errors and timeouts detected since the
sensor was last powered up.
LTNG00 CRC Err/Touts
{number of CRC errors/number of timeouts}
3.4.35 Screen 36
This screen shows the most recent freezing rain count.
This is the probe’s oscillating frequency, which is
normally 40,000 Hz in non-icing conditions.
Freezing Rain Count
{probe frequency, in Hz, e.g., 40000 Hz}
3.4.36 Screen 37
This screen shows the freezing rain status. This
should normally indicate “Sensor OK”. If an error is
detected, the screen will show the type of failure (e.g.,
“Probe Failure”)..
Freezing Rain Status
Sensor OK
3.4.37 Screen 38
This screen shows the number of CRC errors and
timeouts detected since the sensor was last powered
up. CRC errors indicate that the computer is commu-
nicating, but not correctly. It may indicate problems
with the communications line. Timeout errors indicate
that no data was received from the sensor when
expected.
ZR CRC Err/Touts
{number of CRC errors/number of timeouts}
3.4.38 Screen 39
This screen shows the number of deicing cycles
initiated since power-up, along with the number of
sensor CRC errors (“BccErr”) and the number of data
packet requests (“Inctr”) from the DCP to the sensor
since power-up.
ZR Deic/BccErr/Inctr
{number of deice cycles/sensor internal crc error
counter/input message counter}
3.4.39 Screen 40
This screen contains information transmitted from the
Central Data Processor every five seconds. Line one
contains the airport identifier, date, and time. If
communications are normal, the time should update
every five seconds.
CDP information line 1 {airport identifier, date, time}
CDP information line 2 {other information from the
CDP}

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3.4.40 Screen 41 (A–C)
This series of screens is available when the
maintenance switch has been pressed to allow testing
of the data link radio.
Screen A
Data link radio test
Press 1 to continue
Pressing 1 calls up Screen B to start the test. Pressing
any other key bypasses the test.
Screen B
(appears if 1 was pressed at Screen A)
Idle: Press 2 to start
Press 2 to begin the test.
Screen C
Xmit: Any key = Stop
While this screen is displayed, the radio will transmit
for 60 seconds or until a key is pressed to stop the
transmission.
3.4.41 Screen 42
This screen allows the keypad to be tested. It appears
only when the maintenance switch has been pressed.
Keypad test. # = Exit
Press any key to test the keypad. The key’s value will
appear on the second line of this screen. (Note:
Pressing the * key will cause a decimal point to be
displayed.) When done, press the # key to end the
test.
3.4.42 Screen 43 (A–C)
This series of screens allows a Model 8364-E
Visibility Sensor to be calibrated using the 1190
DCP’s built-in keypad and display. This series of
screens is only displayed when a Model 8364-E is
installed and communicating properly, and the main-
tenance switch has been pressed.
Screen A
Cal 8364E Vis Sensor
1 to Cont or # to Exit
Screen B
(appears if 1 was pressed at Screen A)
Enter Cal ID *for .
# when done
Enter the calibration number from the Visibility Sen-
sor’s calibration paddle. To enter a decimal point,
press the * key. Press the # key when done.
Screen C
Cal ID is XXXXXX
Press # if OK
If the displayed calibration number is correct, press
the # key to continue to the next screen. Follow the
on-screen instructions on the remaining screens to
complete the calibration process.
3.4.43 Screen 44
This screen allows you to run a series of diagnostic
tests on the 8364-E Visibility Sensor, and is displayed
when an 8364-E is installed and communicating
properly, and the maintenance switch has been
pressed. The tests include:
RAM test
ROM Test
Power Supply Test
NVRAM Test
Mode tests
Test 8364-E Sensor
1 to Cont. or # to Exit
Press 1 to initiate the tests, or press # to bypass them.
If you choose to run the tests, follow the instructions
on the succeeding screens until the test cycle is
complete.

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3.4.44 Screen 45 (A–C)
Note: The following ALS calibration procedure
requires specialized equipment and facilities and
should normally only be performed at the factory.
This series of screens allows a Model 8364-E
Visibility Sensor’s Ambient Light Sensor (ALS) to be
calibrated using the 1190 DCP’s built-in keypad and
display. These screens are only displayed when a
Model 8364-E with ALS is installed and commun-
icating properly, the maintenance switch has been
pressed, and the DCP’s address switch is not set to
address 0.
Screen A
Cal 8364E ALS Sensor
1 to Cont, # to Exit
Screen B
(appears if 1 was pressed at Screen A)
Enter Cal ID *for .
# when done XXXX.X
Enter the cal standard light level from the photometer
in Candela. To enter a decimal point, press the * key.
Press the # key when done.
Screen C
Cal ID is XXXXXX
Press # if OK
If the displayed number is correct, press the # key to
continue to the next screen. Follow the on-screen in-
structions on the remaining screens to complete the
ALS calibration process.
3.5 LED INDICATORS
The DCP backplane is equipped with seven LED
indicators, which provide a visual clue to the activity
and status of several portions of the DCP circuitry.
3.5.1 PWR. IN
The green PWR. IN LED is lighted when a +15VDC
power source is connected to TB4, pins 5 and 6.
3.5.2 BATT. CHARGE
The green BATT. CHARGE LED is lighted when
the backup 12V battery (if present) is fully charged.
3.5.3 STATUS
The green STATUS LED is not currently used.
3.5.4 RS-485 TX/RX
The red RS-485 TX/RX LED lights when data is
being transmitted to or received from the CDP via the
RS-485 port.
3.5.5 RS-232 RX
The red RS-232 RX LED lights when data is being
received from the CDP via the RS-232 port.
3.5.6 RS-232 TX
The red RS-232 TX LED lights when data is being
transmitted to the CDP via the RS-232 port.
3.5.7 FLOAT CHARGE
The red FLOAT CHARGE LED lights when the 12 V
rechargeable battery (if used) is in the final charging
stages. It is also lighted when no battery is connected.

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4. CALIBRATION
No calibration is required with the Model 1190 Data Collection Platform.