3M Stormscope Series 2 User manual

~rmscope
Senes II Weather Mapping Systems
WX-PA
Instruction
Manual
This manual contains operating instructions and recommended
service information for the WX-PA Portable Analyzer. This
information is supplemented and kept current by Service
Letters published by 3M.
PIN 78-8060-5798-6
3M Aviation Safety Systems
6530 Singletree Drive
Columbus, OH 43229
614/885-3310 3NI
~ .."

/' .

Stprmscop8
Senes II Weather Mapping Sy.;tems
Page Nunmber
WX-PA I nstruction Manual
LIST OF EFFECTIVE PAGES
ISSUE
List of Effective Pages SEPT 88
1-1 thru 1-31
SEPT 88
SEPT 88

I
II
II
II
I

Stprmscop8
Sertes II Weather Mapping Systems
Table of Contents
WX-PA Instruction Manual
.~
LIST OF FIGURES. ................................................ .. 3
1. General Information 4
2. Unit Description 6
2.1. CarryingCase ...........................................
.. 6
2.2. WX-PA Test Antenna 6
2.3. Antenna Cable 6
2.4. Antenna Cable Adaptor 6
2.5. WX-PATestPlug .........................................
.. 7
2.6. Charger 7
3. DisplayandControls.............................................
.. 8
3.1. Display
'.' . . .. 8
3.2. Controls 8
4. Operational Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 9
4.1. Continuous Output 9
4.2. Single Shot Output 10
4.3. Circular Pattern
11
4.4. Storm Simulator 12
4.4.1. Aircraft Speed 13
4.4.2. Aircraft Heading 13
4.4.3. StormReset.....................................
.. 13
4.5. Additional Output Mode Features 13
4.5.1. Mic Key Inhibit 13
4.5.2. Heading Stabilization 13
4.5.2.1. Heading Change . . . . . . . . . . . . . . . . . . . . .
.. 13
4.5.2.2. Heading Flag
ON/OFF. ...................... .. 13
4.6. BenchTest ............................................
.. 14
4.7. Output
Verify. .......................................... .. 14
4.7.1. Waveform Descriptions . . . . . .
.. 14
4.7.2. Test Failures 15
4.8. Checklist Entry 17
4.8.1. Checklist Editor Description . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 17
4.8.1.1. Cursor Position 17
4.8.1.2. Arrow Keys - Cursor Movement . . . . . . . . . . . . . . . . .
.. 17
4.8.1.3. Character Entry - Typeover/Insert 17
4.8.1.4. The 2ND Key. ............................. .. 18
4.8.1.5. CAPS and CAPS LOCK 18
4.8.1.6. Checklist Word Entry 18
4.8.2. Checklist Title Selection. ............................
.. 19
4.8.3. Checklist Title Edit 19
4.8.3.1. F2 - Delete a Character 20
4.8.3.2. MENU - Returnto Checklist Menu . . . . . . . . . . . . . . .
.. 20
4.8.3.3.
ENTR - Saving the Checklist Title 20
SEPT 88
Page 1-1

Stormscope
Series II Weather Mapping Systems WX-PA Instruction Manual
4.8.4. Checklist Item Edit 21
4.8.4.2. F3 - Insert Une 21
4.8.4.3. F4 - Delete Une . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 22
4.8.4.4. MENU -
Return to Checklist Menu . . . . . . . . . . . . . . . .. 22
4.8.4.5.
ENTR - Saving An Item 22
5. Testing Installed Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 23
5.1. Setup ................................................
.. 24
5.2. Checking Azimuth 25
5.3. Checking Range 26
5.4. Bypassing the Series II Antenna 27
6. Battery Operation 29
6.1. UdSwitch.............................................
.. 29
6.2. Timed Power
Down. ..................................... .. 29
6.3. Low Battery Shutoff . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.. 30
6.4. Automatic Charger Shutoff . . . . . . . . . . . . . . . . . .
.. 30
7.
Specifications................................................... 31
7.1. Enclosure .. ........................................... .. 31
7.2. Antenna 31
7.3. Charger 31
Page 1-2 SEPT 88

Stpr~
Series II Weather Mapping Systems
LIST OF FIGURES
WX-PA Instruction Manual
FIGURE DESCRIPTION PAGE
2.1 WX-PA System 1-5
3.1 Control Panel 1-8
4.1 Mode Menu 1-9
4.2 Continuous Output Mode 1-10
4.3 Circular Pattern 1-11
4.4 Storm Simulator 1-12
4.5 Complaint Form 1-16
4.6 Checklist Title Menu 1-19
4.7 Checklist Title Entry 1-20
4.8 Checklist Item Edit 1-21
5.1 Aircraft Test Setup 1-23
5.2 WX-PA Antenna Alignment 1-24
5.3 Azimuth Display 1-25
5.4 Range Display 1-26
5.5 Series II Antenna Bypass 1-27
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SEPT 88 Page 1-3

Stormscopti
Series II Weather Mapping Systems
1. General Information
WX-PA Instruction Manual
The WX-PA Portable Analyzer is a portable test unit used for testing and programming of
Stormscope™Weather Mapping Systems.
In addition to generating the signals necessary to test the weather mapping capabilities of
Storrnscope" systems (both Series I and Series II), the WX-PA can be used to test the
heading stabilization of appropriately equipped Series II models, to enter checklist
information on the WX-1000/WX-1000+, and to perform pre-installation checkout and testing
on Series II Stormscope™models.
The WX-PA may be used on installed systems to check the installation of Series I and
Series II Stormscope™systems, or used in conjunction with the Series II systems Connector
Pod Assembly (3M PIN 78-8060-5750-7) to perform bench testing and checklist
programming of Series II Stormscope™systems.
The Series I storrnscope' systems referred to in this manual are the WX-7, WX-7A, WX-8,
WX-9, WX-10, WX-10A, WX-10AJ, WX-11, WX-11J, and WX-12 systems.
Page 1-4
SEPT 88

Stormscop8
Series II Weather Mapping Systems
WX-PA Instruction Manual
Item Description 3M
PIN
AWX-PA 78-8060-5710-1
BWX-PA Antenna 78-8060-5744-0
CBattery Charger 78-8060-5797-8
DWX-PA Antenna Cable 78-8060-5763-0
EAntenna Cable Adaptor 78-8060-5796-0
FWX-PA Test Plug 78-8060-5821-6
WX-PA System
Figure 2.1
SEPT 88
Page 1-5

Stormscope
Series II Weather Mappmg Systems
2. Unit Description
WX-PA Instruction Manual
The WX-PA (3M PIN 78-8060-5710-1) is shown in Figure 2.1. Its major components are:
2.1. Carrying Case
The carrying case contains the keyboard, display, battery, and solid state electronics.
2.2. WX-PA Test Antenna
The transmitting antenna (3M PIN 78-8060-5744-0) is used to couple test signals to the
Stormscope™system under test. It is supplied with suction cups to facilitate fastening of the
WX-PA antenna to the system antenna.
2.3. Antenna Cable
The WX-PA antenna cable (3M PIN 78-8060-5763-0), 25 feet long, connects the WX-PA to J
the test antenna. The cable is equipped with 25 pin D sub-miniature connectors on each
end, and with a suction cup on the test antenna end. The cable, along with the test antenna,
is stored in the inner lid in the carrying case.
2.4. Antenna Cable Adaptor
The antenna cable adaptor (3M PIN 78-8060-5796-0) allows the WX-PA to directly drive a
Series
1/ system without an antenna. The adaptor consists of a 25 pin D sub-miniatures
connector and a Cannon connector. It is connected between the
WX-PA antenna cable and
the Series
1/ system antenna cable. The primary use of the adaptor is an aid in
troubleshooting.
NOTE
This adaptor can not be used with Series I Systems.
Page 1-6
SEPT 88

Stpr~
Senes II Weather Mapping Systems
2.5. WX-PA Test Plug
WX-PA I nstruction Manual
The WX-PA test plug (3M PIN 78-8060-5821-6) is for use with the Output Verification Mode.
The 16 test points on the test plug may be viewed with ascope to determine the operational
integrity of the WX-PA outputs.
2.6. Charger
The WX-PA is powered by a sealed, rechargeable 12V lead-acid battery for portable
operation. The battery charger supplied (3M PIN 78-8060-5797-8) is a calculator style battery
charger, which has sufficient output to power the WX-PA without draining the battery.
SEPT 88
Page 1-7

Stormscope
Series II Weather Mappmg Systems
3. Display and Controls
The WX-PA control panel is shown in Figure 3.1.
3.1. Display
WX-PA Instruction Manual
The Liquid Crystal Display is comprised of 4 lines of 40 characters each. The top line is
generally used to indicate the mode of operation. The second and third lines contain the
operating parameters, and indicate selection choices. The fourth line either contains
additional selection choices, or indicates the functions of the four "Function Keys" labeled
F1
through F4.
3.2. Controls
The control panel consists of the keyboard, the VIEWcontrol, a 08-25 jack (J1) for
interconnection to Stormscope™systems, and an expansion 08-25 jack (J2), for use with
future Stormscope™expansion functions.
3NI
Page 1-8
VIEW
o
EJ
MODEL WX - PA PORTABLE ANALYZER
t10DE ME~IU
91Continuous OuU8 Sin''lle Shot Ollt
Cit"culat' Pat.tern Bench Test
-,l. Check 1i st Entr'':j .~. Stor'p', SiPlulation
G G G B
••••••••••
••••••••••
••••••••• 8
11 •••••••• 11
• a _
aDa
Control Panel
Figure
3.1
J1 J2
SEPT 88

Stpr~
Senes II Weather Mapping Systems
4. Operational Modes
WX-PA Instruction Manual
The WX-PA is capable of several different operating modes. When the unit is switched on,
the WX-PA initiates its own internal self test, displays the results, and then displays the Mode
Menu shown in Figure 4.1.
The Continuous Out, Single Shot Out, Circular Pattern, and Storm Simulator modes may be
used either with the Stormscope™system (Series I or Series II) installed in the aircraft, or on
the bench. The Bench Test and Checklist Entry Modes may be used only in conjunction with
the Bench Kit Connector Pod.
The Mode Menu cursor, consisting of blinking brackets surrounding an item, is moved up,
down, left, or right by the four corresponding arrow keys. If additional items are available
above or below the displayed items, up or down arrows are displayed on the top or bottom
lines. Once the cursor highlights the desired item, the mode is selected by pressing the
ENTRkey. Pressing 2ND
ENTR (MENU) returns the system to the Mode Menu.
MODE t1ENU
IContinuous Out. Single Shot Out
Circular Pattern Bench Test
~ Checklist Entry ~ StorM SiMulation
Mode Menu
Figure
4.1
4.1. Continuous Output
Figure 4.2 shows the display for Continuous Output Mode. The Series number (selectable as
Series II, WX-7 through WX-10, or WX-10A through
WX-12) at the top middle may be
changed by pressing the
"s" (Series) key. Antenna Mount (Top Mount or Bottom Mount) at
the top right is changed by pressing the "A" (Antenna) key.
In the Continuous Output mode, the WX-PAwill output a continuous series of test signals.
The output is started or stopped by pressing the
ENTR key.
The range of the test signal output may be varied by use of the
F1 and F2 function keys.
Each press of
F1 increases the range of the signal while F2 decreases the range. The
available ranges are 15, 30, 55, 75, 120, and 170 nm. The selected range is displayed on
line 2 of the display. The selected range "rolls over" at 15 nm (goes to 170 nm) and at 170
nm (goes to 15 nm) if the F2 or
F1 keys respectively are pressed.
SEPT 88
Page 1-9

S~rmscope
Senes II Weather Mapping Systems WX-PA Instruction Manual
Cont...inuous Out...
Range = 30nl"l
Ranget
Ser'ies I I
Bearing -
P~USED
Range.J.. Bearingt Bear i rlg.J..
Continuous Output Mode
Figure 4.2
In a similar manner, the bearing of the test signal may be varied by use of the F3 and F4
keys. Each press of F3 increases the bearing by 30 degrees, while F4 decreases the bearing
by 30 degrees.
The range and bearing may be changed either before starting the test signal output, or while
the test signal is being output.
4.2. Single Shot Output
The Single Shot Output mode is similar to the Continuous Output mode, except that only a
single test signal is output for each press of the
ENTR key.
The range and bearing of the test signal is varied just as in the Continuous Output mode.
The Series Number, and Top Mount or Bottom Mount are selected as in the Continuous
Output Mode, Section 4.1 paragraph 1.
Page 1-10
SEPT 88

Stprmscope
Series II Weather Mapping Sysiems WX-PA Instruction Manual
Circular Pattern
Figure 4.3
4.3. Circular Pattern
The Circular Pattern mode outputs a series of test signals at a selected range and
continuously incremented bearing. The output is started and stopped by pressing the
ENTR
key.
F1 and F2 increase and decrease the range of the test signal while F3 and F4 increase or
decrease the amount of bearing increment. The resulting output causes a circular pattern of
dots on the Stormscope™system display at the selected range, with the dots spaced apart
by the amount of bearing increment.
For example, with the selected range at 30 nm, and the bearing increment at 45 degrees, the
WX-PAwould output a test signal first at 30 nm, 0 degrees, then one at 30 nm, 45 degrees,
then at 30 nm, 90 degrees, etc.. This pattern is illustrated in Figure 4.3.
The Series Number, and Top Mount or Bottom Mount are selected as in the Continuous
Output Mode, Section
4.1 paragraph 1.
SEPT 88
Page 1-11

Stormscope
Series II Weather Mapping Systems
4.4. Storm Simulator
WX-PA Instruction Manual
The Storm Simulator Mode is primarily for use in demonstration of Stormscope™Series \I
systems. This mode may be used either on installed systems, or in conjunction with the
Series \I System bench kit connector pod.
After selecting this mode from the Mode Menu, the storm menu is displayed - Frontal, Weak
Frontal, 2 Cells, and 1 Cell. Position the cursors on the desired storm, and press
ENTR. The
storm is started and stopped by pressing
ENTR. Figure 4.4 shows the display for the Storm
Simulator Mode.
Each cell within a storm is in different stages of maturity, some building, and some
dissipating.
StorM SiMulation Frontal
Heading - 0 Speed - Stopped
PI=IUSED
Speed tSpeed ~ Reset StrM
Page 1-12
Storm Simulator
Figure 4.4
SEPT 88

Stprmscope
Senes II Weather Mapping Systems
4.4.1. Aircraft Speed
WX-PA Instruction Manual
The simulated speed of the aircraft is selectable by F1 and F2 as Stopped, Slow, Medium,
and Fast. In the Stopped speed, the storm will maintain it's position and intensity indefinitely.
In the Medium speed, the storm will take approximately 20 minutes to travel 100 nm. The
Slow speed is
1/5 the Medium speed, and the Fast speed is twice the Medium speed.
4.4.2. Aircraft Heading
The simulated heading of the aircraft may be altered by the Left and Right Arrow keys. The
current heading is displayed on line 2 of the display.
4.4.3. Storm Reset
The storm may be reset back to the original starting postion by pressing the F4 key. The
heading is reset back to zero, and the speed is reset to Stopped.
4.5. Additional Output Mode Features
When used with a Series II System bench kit connector pod, the output modes (Continuous,
Single Shot, Circular Pattern, and Storm Simulator) offer some additional functions.
4.5.1. Mic Key Inhibit
The Mic Key Inhibit function may be switched on or off by pressing "I" (Inhibit). "Inhibit On"
will be displayed on the WX-PA when the inhibit line is being asserted.
4.5.2. Heading Stabilization
If the unit under test is a heading stabilized Series II system, the following functions are
available in the output modes.
4.5.2.1. Heading Change
The heading may be changed by the use of the left and right arrow keys. Each press of the
Arrow Keys decreases (left arrow) or increases (right arrow) the heading by 2 degrees.
4.5.2.2. Heading Flag ON/OFF
The flag line may be tested by pressing "F" (Flag). "Flag On" will be displayed when the flag
line is asserted. Pressing "F" again turns the flag line off.
SEPT 88
Page 1-13

Stormscope
Series II W,,,1thel Mapping Systems
4.6. Bench Test
WX-PA Instruction Manual
All Series \I systems must be bench tested prior to installation. To perform this test, a bench
kit connector pod (3M PIN 78-8060-5750-7) is required in addition to the WX-PA.
For details on the Bench Test procedure, refer to the maintenance section (Section 5) of the
storrnscope" Series II Instruction Manual for the particular Stormscope" system being
installed or tested.
4.7. Output Verify
The Output Verify mode is used to test the various outputs of the WX-PA. After selecting the
mode, install the WX-PA Test Plug (Figure 2.1) on J1, and press
ENTR. The WX-PA first
tests its communication functions, and then generates waveforms on all outputs. An
oscilloscope is then used to determine the integrity of the output circuitry.
The WX-PA Test Plug is supplied with 2 ground connections
(TP1 and TP16), and 14 signal
connections (TP2through TP15). The oscilloscope traces from these test points should
appear as follows when in the Output Verify mode.
4.7.1. Waveform Descriptions
4.7.1.1.
4.7.1.2.
4.7.1.3.
4.7.1.4.
4.7.1.5.
Page 1-14
TP2 and TP3 are 31.25 kHz sine waves with a
13.5 Volt (+
1- 10%) Peak to Peak output.
TP4 is a
31 .25 kHz sine wave with a
5.0 Volt (+
1- 10%) Peak to Peak output.
TP5 through TP10 are 31.25 kHz sine waves with
0.4 Volt (+
1- 10%) Peak to Peak outputs.
TP11 through TP13 are 31.25 kHz sine waves with
2.4 Volt (+
1- 20%) Peak to Peak outputs.
TP14 and TP15 are 5 Volt,
TIL signals at 1 kHz (+ 1- 20%).
SEPT 88

Stprmscope
Senes II Weather Mapping Systems
WX-PA Instruction Manual
4.7.2. Test Failures/Return for Service
In the event of a communication function failure, the WX-PA will display "COMM ERROR",
and will then proceed with the waveform output test. If ·COMM ERROR" is reported, or if any
of the waveforms are out of tolerance, the WX-PA should be returned for service.
Before returning a system to 3M, ensure that the following steps have been taken:
Call 3M Service Department [phone] to report the failure, and to receive
a Return Authorization Number.
Copy and complete the complaint form Figure 4.5 and return the completed copy
along with the repair to:
3M Aviation Safety Systems
6530 Singletree Drive
Columbus, Ohio 43229
[phone]
SEPT 88
Page 1-15

Stormscope
Series II Weather Mappmg Systems WX-PA Instruction Manual
3M STORMSCOPE™WEATHER MAPPING SYSTEMS
WX-PA COMPLAINT REPORT
A copy of this form must be completed and returned to 3M with the defective WX-PA system
to provide complete information about the defect. This will reduce turnaround time and
insure Warranty Credit where applicable.
Dealer
---------
City, State
------
Name
------
Phone No. L) _
WX-PA Serial #
-------
oWarranty 0Non-Warranty (Check One)
Explain problem fully (Use additional page if necessary).
Describe Waveforms observed in Output Verify Mode, Include Test Point Number
Sketch
Has this system been to 3M for repair before? Yes No
If yes, was the symptom the same as this one?
Yes_No_
To facilitate repair of the system, a Return Authorization number must be obtained by phone
from 3M [phone].
List RA number here: RA #
---------
Figure 4.5
Page 1-16
SEPT 88