Avery Weigh-Tronix PC-805 User manual

PC-805 Parts Counter
Service Manual

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3
Table of Contents
Table of Contents ................................................................................ 3
Specifications...................................................................................... 4
What's in This Manual? ........................................................................ 5
Accessing Menus and Modes ................................................... 5
Scale Menu ......................................................................................... 6
CALib Calibration) ................................................................... 7
ConFig Configuration) ............................................................. 7
rEStArt Restart) ....................................................................... 8
SEAL Seal) ............................................................................. 8
done Done) ............................................................................. 8
Diagnostic Menu.................................................................................. 9
ConFig. Configuration) Menu....................................................................... 11
Error Messages ........................................................................................... 14
Serial Communications ................................................................................ 14
Cable Pinouts .................................................................................... 14
Preset Print Formats ......................................................................... 15
1410 Printer Fixed Format Label Output ............................................ 16
Computer Protocol ............................................................................ 17
Disassembly Instructions .............................................................................. 19
PC-805 Technical Illustrations....................................................................... 21

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Capacity Normal Resolution Expanded Resolution
10 lb 0.001 lb 0.00005 lb
50 lb 0.005 lb 0.0002 lb
100 lb 0.01 lb 0.0005 lb
5 kg 0.0005 kg / 0.5 g 0.00002 kg / 0.02 g
25 kg 0.002 kg / 2 g 0.0001 kg / 0.1 g
50 kg 0.005 kg / 5 g 0.0002 kg / 0.2 g
Overcapacity indication (upper dashes) ill occur at 9 divisions over rated
capacity or 102% of full scale capacity.
1 part in 2,000,000 (QDTTM)
Standard digital soft are filtering
Seven digits of seven-segment, high-contrast black LCD, .5" (1.3 cm) high
ith blue electro-luminescent backlight
15VDC at 300mA from a 117VAC 60Hz inline transformer
Optional 12VDC lead acid battery
Bidirectional RS-232 output ith selectable baud rate
14° to 104° F (-10° to 40° C)
10 to 90% relative humidity, non-condensing
Specifications
Capacities and Resolutions:
Overcapacity Limits:
Internal Resolution:
Filters:
Display:
Power:
Output:
Operating environment:

5
What's In This Manual?
This manual contains the information you need to configure, calibrate and
service the PC-805 counting scale. The manual is divided into the follo ing
sections:
 Scale Menu
 Diagnostic Menu
 Configuration Menu
 Communication
 Technical Dra ings and Assemblies
The different modes of operation are accessed by placing the s itches of
SW1 in the positions described in Table 1. S itch SW1 is located under the
scale shroud on the right side of the scale. See Figure 1. Calibration,
diagnostics, and configuration can also be accessed by pressing and
holding the PRINT key for five seconds.
witch W1
ON OFF Mode of Operation
1, 2 Normal Operation Mode
2 1 Menu Mode (Scale, Diag., Config.)
3 External Display Mode
Table 1
Switch settings
Figure 1
Switch SW1 location
Switches not listed in Table are
irrelevant to the mode. It does
not matter what position they
are in for that particular mode.
Accessing Menus and
Modes

6
Scale Menu
The first menu you see hen entering the menu mode is the Scale menu.
Follo these steps to explore the Scale menu.
1. Set SW1-2 to the ON position
and SW1-1 to the OFF position
OR hold the PRINT key for 5
seconds. The display sho s SCALE. The
entire Scale menu is sho n in
Figure 2 belo .
2. Follo the legend at the top of
the menu to navigate through the
menu. Each item is explained on
the next pages.
Figure 2
Scale Menu
Because a 7 segment display
cannot show all of the alpha-
bet, the words on the display
are the closest representations
of the words they stand for that
can be accomplished. The
menus show the words as all
caps and clarified in some
instances. The explanations in
the text will use the letters and
case you will see on the
display.
* = factor
y
default value
Press any key
but
to abort the
calibration process
SAMPLE
To move , press the key.
To move , press the key.
To move , and to choose an option, press the key.
Press key to go up one menu level.
SAMPLE
TARE ZERO
COUNT/WEIGHT

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CALib is the calibration function for the scale. Follo these steps to cali-
brate your scale:
1. With CALib displayed, press the
ZERO key. . . PoUnd or 1000 g is displayed.
These are your choices for unit of
measure for the calibration test
eight.
2. Toggle bet een these t o units
of measure by pressing the
AMPLE key. With the unit of
measure you ant displayed,
press the ZERO key. . . A eight capacity is sho n on the
screen.
3. Press the AMPLE key to scroll
through the choices of scale
capacity. With your choice
displayed, press the ZERO
key. . . LoAd 0 is displayed. Be sure all
eight is removed from the scale.
4. Press the ZERO key. . . bUSY is briefly displayed then LoAd
X. X is the amount of eight to put
on the scale for calibration. You can
scroll to an alternate eight by
pressing the ZERO key. See Table 2
at left.
5. With LoAd X displayed, place X
eight on the scale and press
the ZERO key. . . bUSY is briefly displayed then donE.
The display then returns to CALib.
ConFig (scale configuration) is the next item under the Scale menu. Belo
are descriptions of each item in this submenu. Use the ZERO and AMPLE
keys as you did in the calibration section to navigate through the choices
and select the configuration items you ant.
0 rAngE Zero range
Choices: 100% or 2% of full capacity
Use this to set the allo able zero range.
0 Start Zero Start
Choices: YE or NO
If YES is select, the scale zeros hen it po ers up. If NO is
selected, the scale ill display the eight on the platter hen it
po ers up.
Azt rng Auto zero tracking range
Choices: Off, 0.5d, 1d, 2d, 3d, 5d
Use this to set the allo able zero tracking range. This ill not
affect the count or sample modes.
CALib (Calibration)
ConFig (Configuration)
ress any key except the
AMPLE key to abort calibra-
tion. If you abort the procedure,
Abort is displayed briefly then
CALib.
During calibration the display
may show bUSY if scale
motion is detected. Wait to see
if the display clears. If not, turn
off the scale and turn back on.
Repeat the calibration proce-
dure
The scale de aults to 10,000d
resolution a ter calibration.
Scale
Capacity
5
10
25
50
75
100
125
150
200
250
300
500
Alt 1
N/A
N/A
10
10
10
10
10
10
50
50
50
50
Alt 2
N/A
N/A
25
25
50
50
50
50
100
100
100
200
Table 2
Alternate Span Weights

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ovr CAP Over capacity
Choices: 102% or full capacity or 9 divisions
Use this to set the overcapacity limit.
StAblE Stability
Choices: Off, 0.25d, 0.5d, 1d, 2d, 5d
Use this to set the stability limit. This is the allo able motion for
zero acceptance, tare acceptance and the stable indicator.
Off = 100d.
rESo Resolution
Choices: 5k, 10k, 12.5k, 15k, 20k, 25k, 30k, 40k, 50k, 75k,
100k, 125k, 150k, 200k, 250k, 300k, 400k, 500k
Use this to set the desired scale resolution.
FiLtEr Filter
Choices: Normal and Fast
Use this to set the amount of filtering needed for your situation.
Choose Fast in situations ith excess vibration.
UPdAtE Update
Choices: 1 time/second, 2 times/second, 8 times/second,
16 times/second
Use this to set the display update rate.
dEFAULt Default
Choices: Yes, No
Use this to reset the Config. factory defaults. Calibration ill not
be affected.
LFiLt LFilter
Choices: 4, 5
Sets filtering of the QDT® cell. A setting of 4 is more accurate
but slo s response compared to a setting of 5.
done Done
Hit the SAMPLE key ith this displayed to move back to the
ConFig display.
Restart is the next menu item. Use this to reinitialize the scale. You ill need
to recalibrate if you choose yes.
Seal is the next menu item. Choose Yes if you ant to disable access to the
scale menu through the front panel PRINT key. If yes is chosen and you try
to access the scale menu, SEALEd ill be displayed. Choose No if you
ant to leave front panel access to the scale menu available.
Done is the last menu item in the Scale menu. Press the COUNT/WEIGHT
key to return to the SCALE display.
rEStArt (Restart)
SEAL (Seal)
done (Done)
Bold selections are factory
defaults.

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Figure 3 sho s the Diagnostic menu.
Diagnostic Menu
Access the diagnostic menu by follo ing the instructions in the section
Accessing Menus and Modes. Belo are explanations for each of the items
in this menu. With the test name displayed, press the ZERO key to perform
the test.
BAttERY Battery
Choose this to display the current battery voltage. Battery
voltage ill usually read from 11 to 13 volts. The Lo Bat annun-
ciator ill sho up hen voltage drops to 11.5 volts. The scale
ill shut off hen voltage is 10 volts. While recharging, this
display ill sho 13-14.5 volts and if AC po ered the display ill
sho approximately 14.5 volts.
C CRYSt Compression Crystal
Choose this to display the ra digital counts from the compres-
sion crystal in the load cell. A typical count ith no load on the
scale is approximately 2.08 million. This number should in-
crease as eight is applied to the scale. Press the ZERO key to
end the test.
t CRYSt Tension Crystal
Choose this to display the ra digital counts from the tension
crystal in the load cell. A typical count ith no load on the scale
is approximately 2.08 million. This number should decrease as
eight is applied to the scale. Press the ZERO key to end the
test.
Figure 3
Diagnostic menu
A C-805 with the backlight
enabled and a fully charged
battery may be expected to last
12 hours before recharging is
necessary. With the backlight
disabled the battery will last
approximately 24 hours.
shows voltage shows raw
digital count
compression
crystal count tension crystal
count
performs
a serial
loopback
test
shows model #,
software
revision level
and performs a
display segment
test
shows high
resolution with
AZT on
Lets you
check key
function
shows high
resolution w/o
AZ
T
To move , press the ke
y
.
To move , press the key.
To move , and to choose an option, press the ke
y
.
Press key to go up one menu level.
SAMPLE
TARE ZERO
COUNT/WEIGHT
For version ? of the Quartzell
loadcell the counts should be
approximately 2.08 million for
the tension and compression.

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Count Count
Choose this to display the ra , digital counts from the
QuartzellTM. The ra count should be approximately 90,000. If
tension and compression crystal counts are present and stable,
the QDT cell is functioning properly.
SERIAL Choose this to perform a serial loopback test. You must connect
the transmit and receive lines together for this test to ork.
Display ill sho pass or fail.
dISPLAY Display
Choose this to display the model number, soft are version part
number and revision and to perform a display segment test.
bUttonS Buttons
Choose this to test the keys of the front panel. Each key press is
spelled out in the display to sho it is functioning properly. The
COUNT/WEIGHT key ill return the display to bUttonS.
HI RESA High resolution ith AZT enabled
Choose this to display eight data ith 1,000,000 count resolu-
tion. AZT is enabled during this test. Press the AMPLE or
COUNT/WEIGHT key to stop the test.
HI RESn High resolution ith no AZT
Choose this to display eight data ith 1,000,000 count resolu-
tion. AZT is disabled during this test. Press the AMPLE or
COUNT/WEIGHT key to stop the test.