Velcon/FlexWeigh Model 5 User manual
REVISION 5-002b
Model 5 Operator Manual
Table of Contents
1.0 General Description ...........................................................................
2.0 Display and Controls..........................................................................
2.1 D splay...............................................................................................
2.2 Status Ind cators ................................................................................
2.3 Keypad...............................................................................................
3.0 Setup ....................................................................................................
3.1 Power Connect on .............................................................................
3.2 Load Cell Connect on........................................................................
3.3 Conf gurat on Programm ng..............................................................
3.4 Set Up Keypad Def n t ons................................................................
3.5 Program Steps...................................................................................
F1.0 RAW COUNTS DISPLAY.................................................................................
F1.1 FILTER SETTING ..........................................................................................
F1.2 DISPLAY UPDATE RATE................................................................................
F1.3 MOTION WIDTH in DIGITS ...........................................................................
F1.4 AUTO ZERO TRACKING ENABLE ..................................................................
F1. AUTO ZERO TRACKING WIDTH ....................................................................
F1.6 2% ZERO RANGE..........................................................................................
F1.7 DISPLAY BRIGHTNESS..................................................................................
F2.0 TARE ENABLE ..............................................................................................
F2.1 TARE INTERLOCK ........................................................................................
F2.2 AUTO CLEAR TARE.......................................................................................
F3.0 BAUD RATE SELECTION...............................................................................
F3.1 PARITY.........................................................................................................
F3.2 PARITY, BITS per CHARACTER, and STOP BITS ...............................................
F3.3 DELAY AFTER CARRIAGE RETURN ...............................................................
F3.4 NEGATIVE PRINT ENABLE............................................................................
F3. CHECKSUM TRANSMIT ENABLE...................................................................
F3.6 CTS ENABLE ................................................................................................
F4.0 PRINT MODE ...............................................................................................
F4.1 CONTINUOUS DATA FORMAT.......................................................................
F4.2 WEIGHT CHANGE PERCENTAGE ..................................................................
F4.3 MINIMUM PRINT..........................................................................................
F4.4 WEIGHT DATA FORMAT ...............................................................................
F4. FRONT PANEL SET UP ENABLE ....................................................................
F .0 WEIGHT UNITS ............................................................................................
F .1 INCREMENT SIZE.........................................................................................
F .2 DECIMAL POSITION.....................................................................................
F .3 ENTER CALIBRATION MODE ........................................................................
F .4 LINEARITY FACTOR......................................................................................
4.0 Calibration ..........................................................................................
4.1 Cal brat on Error Codes.....................................................................
4.2 Error D splays....................................................................................
5.0 Sequence of Operation .......................................................................
6.0 rinter/computer Installation............................................................
6.1 Connect ng to TB2 ............................................................................
6.2 Remote Commands ...........................................................................
7.0 Specifications ......................................................................................
7.1 Performance.......................................................................................
7.2 Electr cal............................................................................................
7.3 Commun cat ons................................................................................
7.4 D splay...............................................................................................
7.5 Enclosure ...........................................................................................
8.0 circuit Board Layout ..........................................................................
9.0 enclosure..............................................................................................
9.1 D mens onal Draw ng........................................................................
9.2 Part Number Draw ng........................................................................
10.0 lOAD CELL COLOR CODES........................................................
11.0 Warranty ...........................................................................................
12.0 FCC Compliance ..............................................................................
13.0 INDEMNIFICATION
1.0 General Description
The Model 5 s a bas c we ght nd cator for h gh performance, general-purpose
appl cat ons. It accepts standard stra n gauge load cells and s gnal cond t ons the nput
to prov de a stable and accurate we ght nd cat on.
Features:
Ø16 Million Count Analog-to-Digital Converter
Ø50,000 Count Displayed Resolution
Ø10,000 Count NTE Resolution
ØRS232 Serial I/O Standard
ØLarge Ultra Bright 0.8 inch High Digits
ØAC or DC Input ower
ØI/O Expansion ort
ØEasy Set Up and Operation
ØFully Configurable/ rogrammable
2.0 Display and Controls
2.1 Display
The numer c d splay s the processed result of the s gnal from the scale base. At
102% of capac ty and above the d splay nd cates oLoAd.
2.2 Status Indicators
Colored LED l ght bars are used above each legend.
0On when we ght s w th n ¼ ncrement of zero.
MOTION On when we ght exceeds the mot on cr ter a programmed.
GROSS On when gross we ght s d splayed.
NET On when net we ght s d splayed (a tare has been subtracted.)
lb On when d splay s n un ts of lb avo rdupo s.
kg On when d splayed s n un ts of k lograms.
2.3 Keypad
ZERO Press and hold for at least 3 seconds to establ sh the zero reference
and the po nt where zero track ng s operat onal, f the auto zero track ng feature
has been enabled. The meter can be programmed to zero over the ent re range
of cal brat on or ±2% of the range. Mot on l ght must be ext ngu shed for th s
operat on to take effect.
TARE Press to subtract the we ght of empty conta ners from the gross we ght.
The we ght subtracted s stored as a tare value and the d splay sw tches to net
we gh ng mode.
GROSS
NET If a tare we ght has been subtracted, the value d splayed can be toggled
between gross we ght and net we ght by press ng th s key. When tare s cleared
to zero the d splay automat cally sw tches to gross we gh ng mode.
UNITS Press th s key to select we gh ng n un ts of pounds avo rdupo s (lb)
or k lograms (kg.) The we ght meter automat cally adjusts the ncrement s ze to
be cons stent w th the number of d v s ons n wh ch the meter was cal brated.
RINT Press th s key to send d splayed we ght and un ts to the ser al port.
A var ety of pr nt formats can be selected when sett ng up the meter. Upon
successful output, f rst a ser es of dashes mov ng from r ght to left w ll show on
the d splay then the data w ll be sent out the ser al port.
3.0 Setup
Set up of the Model 5 requ res that the un t be prov ded w th power v a the TB1
connector and connected to the load cell v a the TB3 connector. The opt onal connector,
TB2, s used f a ser al pr nter/computer s suppl ed.
3.1 ower Connection
Refer to the Model 5 c rcu t board draw ng n Sect on 8.0 BOARD LAYOUT
to locate the power connector TB1, the RS232 connector TB2, and the load cell
connector TB3. Remove the back panel by unscrew ng the s x screws around the
per meter. Push the wall transformer cable through the r ghtmost stra n rel ef,
SR1. Push the load cell cable through the leftmost stra n rel ef, SR3. Us ng the
suppl ed three pos t on term nal block, attach the three conductor power supply
cable w res us ng a small, flat-blade screwdr ver accord ng to the follow ng color
codes:
Wall Transformer
/N AA-091AG TB1 Wall Transformer
/N 48A-9-1000 TB1
BROWN +IN RED +IN
GREEN GND WHITE GND
BLUE -IN BLACK -IN
Ensure that the Green or Wh te w re from the wall transformer s always connected
to the GND term nal as th s connect on s the safety earth conductor. The un t
becomes grounded or earthed by plugg ng the wall transformer nto a properly
w red three term nal wall receptacle. Never defeat the ground connect on n the
nterest of safety and no se reject on. Insert the power term nal onto TB1 of the
Model 5 c rcu t board.
3.2 Load Cell Connection
Connect the suppl ed seven pos t on load cell term nal block to the load cell cable
accord ng to the follow ng table legend. Refer to the manufacturer of the load
cell(s) used for the w re color codes.
If the load cell does not prov de the +/- Sense leads, jumper the +EXC to the +SEN
and EXC to the SEN term nals for proper operat on. Insert the load cell term nal
block onto TB3 of the Model 5 c rcu t board. The un t s now ready for setup/cal brat on.
Apply power v a the wall transformer.
Load Cell TB3
+Excitation +EXC
-Excitation -EXC
+Signal +SIG
-Signal -SIG
+Sense +SEN
-Sense -SEN
Shield SHLD
3.3 Configuration rogramming
Meter setup/cal brat on s entered by access ng the nternal CAL sw tch on the c rcu t
board. Once n setup mode, you can ex t w thout sav ng changes by press ng the same
sw tch.
3.4 Set Up Keypad Definitions
Keypad def n t ons for the setup and cal brat on are as follows:
ZERO causes the d splay to go back to the prev ous menu step.
TARE advances to the next select on w th n the F step or ncrements a d g t w th n
a numer c entry such as cal brat on we ght.
GROSS NET ndexes to a spec f c d g t n a numer c d splay l ke cal brat on we ght.
RINT accepts an F step sett ng and advances to the next step. It also ex ts from
the setup menu.
UNITS ends the setup process, nd cat ng that the changes are to be saved.
3.5 rogram Steps
F1.0 RAW COUNTS DIS LAY
d Show normal counts on d splay.
E D splay the nternal raw counts.
F1.1 FILTER SETTING
One (1) s the lowest f lter ng and has the least damp ng effect and e ght
(8) has the greatest effect.
Opt ons: 1, 2, 3, 4, 5, 6, 7, 8.
F1.2 DIS LAY U DATE RATE
Number of d splay updates per second.
Opt ons: 20, 10, 5, 2, 1, 0.5, 0.25
F1.3 MOTION WIDTH in DIGITS
Select the w dth of the mot on w ndow by use of the TARE key. A select on
of d w ll d sable the no mot on requ rement for use by the ZERO,
TARE, and PRINT funct ons.
Opt ons: 0.5, 1, 2, 3, 4, 5, 6, d
F1.4 AUTO ZERO TRACKING ENABLE
d Auto zero track ng d sabled.
E Auto zero track ng enabled.
F1.5 AUTO ZERO TRACKING WIDTH
Number of d g ts over wh ch zero w ll automat cally track.
Opt ons: 0.5, 1, 2, 3
F1.6 2% ZERO RANGE
d Zero act ve at any we ght.
E Zero act ve to +/- 2% of capac ty about zero.
F1.7 DIS LAY BRIGHTNESS
Select a value from zero (d mmest) to f fteen (br ghtest) for the d splay br ghtness
des red.
Opt ons: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
F2.0 TARE ENABLE
d Tare d sabled.
E Tare enabled.
F2.1 TARE INTERLOCK
d Tare may be changed at any we ght nd cat on.
E We ght must be at zero to clear tare.
F2.2 AUTO CLEAR TARE
d Not act ve.
E Tare w ll automat cally clear when nd cat on returns to less than 10 pos t ve
d g ts of zero and no mot on.
F3.0 BAUD RATE SELECTION
Select the des red BAUD rate for pr nt ng and ser al nput. The actual BAUD
rate s the d splayed value t mes 100, e.g. a cho ce of 96 s really 96*100 or
9600 BAUD.
Opt ons: 192, 96, 48, 24, 12, 6, 3
F3.1 ARITY
Select the type of par ty des red from the three opt ons: No par ty(nP), Par ty
Even(PE), or Par ty Odd(Po.)
Opt ons: nP, PE, Po
F3.2 ARITY, BITS per CHARACTER, and STO BITS
Select the needed par ty, number of b ts per character, and the number of
STOP b ts from the opt ons below. The leftmost character s the par ty (n
or P), the m ddle character s the number of b ts (7 or 8) and the r ghtmost
character s the number of stop b ts (1 or 2). If par ty s selected, the type
of par ty, even or odd, used s v a the F3.1 PARITY select on above. An
nP select on n F3.1 above w ll overr de the P select on n th s sect on.
Opt ons: n7.1, n7.2, P7.1, P7.2, n8.1, n8.2, P8.1, P8.2
F3.3 DELAY AFTER CARRIAGE RETURN
The amount of delay after a carr age return or l ne feed s transm tted, n
seconds.
Opt ons: 0, 0.1, 0.2, 0.5, 0.75, 1.0, 1.5
F3.4 NEGATIVE RINT ENABLE
d D sable the pr nt ng of negat ve we ghts.
E Enable pr nt ng of negat ve we ghts (Non HB44.)
F3.5 CHECKSUM TRANSMIT ENABLE
d No checksum transm tted.
E Checksum s transm tted, pr or to CR-LF, as the 2s complement of prev ously
sent characters.
F3.6 CTS ENABLE
d Ignore CTS nput l ne.
E Use the CTS nput l ne to control character transm ss on. If CTS s false,
do not transm t.
F4.0 RINT MODE
d Pr nt output s d sabled.
1 Pr nt button latches the Pr nt Request. Pr nt ng w ll occur when mot on
ceases and scale s pos t ve.
2 Pr nt w ll occur f not n mot on and pos t ve at the t me Pr nt button
s pressed.
3 Auto pr nt after mot on has settled and pos t ve we ght s above the
value spec f ed n F4.2 below has occurred.
F4.1 CONTINUOUS DATA FORMAT
d Cont nuous output d sabled.
1 Status, we ght, and tare data sent.
2 Z660 Scoreboard output.
3 Remote d splay, RD-IV, output.
4 Stra ght ASCII output only.
F4.2 WEIGHT CHANGE ERCENTAGE
The follow ng values spec fy the percentage change of Full Scale Capac ty
before the auto pr nt latch s re-armed.
Opt ons: 5, 10, 15, 20, 25%
F4.3 MINIMUM RINT
D g ts above zero before auto pr nt s latched.
Opt ons: 0, 10, 20, 30
F4.4 WEIGHT DATA FORMAT
0 D splayed We ght only
1 S ngle L ne Gross, Tare, Net
2 Mult ple L ne Gross, Tare, Net
3 Status, We ght, and Tare
F4.5 FRONT ANEL SET U ENABLE
d D sable Front Panel Set Up/Cal brat on.
E Enable Front Panel Set Up/Cal brat on by hold ng down the PRINT and
UNITS keys for at least 15 seconds then releas ng (Non HB44.)
F5.0 WEIGHT UNITS
0 Pounds un t of measure only.
1 K lograms un t of measure only.
2 Lb/kg front panel sw tchable v a the UNITS key.
F5.1 INCREMENT SIZE
Least s gn f cant d g t ncrement s ze.
Opt ons: 1, 2, 5, 10, 20, 50, 100
F5.2 DECIMAL OSITION
D splay dec mal pos t on from none to four places to the left.
0 No dec mal.
1 XXXXX.X
2 XXXX.XX
3 XXX.XXX
XX.XXXX
F5.3 ENTER CALIBRATION MODE
d Cont nue to the last step (CAL d.)
E Enter the CAL mode to cal brate scale.
F5.4 LINEARITY FACTOR
Enter the l near ty factor, f requ red.
Opt ons: 0, 1, 2, 3, 4, 5, 6, 7, -0, -1, -2, -3, -4, -5 ,6, -7
Note: The value selected s determ ned emp r cally n the f eld. If w th a zero factor,
the scale base reads heavy at half capac ty, then use pos t ve values for the L near ty
Factor. If the scale reads l ght, then use negat ve values.
4.0 Calibration
Enter the setup mode by press ng the nternal CAL sw tch on the c rcu t board. Assume
for the follow ng procedure that the des red capac ty resolut on s 5000lb by 1-lb. If
the select on for F5.0 above s 2, lb/kg sw tchable, then enter all cal brat ons f elds
below as pounds. The kg equ valent w ll be automat cally computed dur ng normal
scale operat on.
DIS LAY ACTION / DESCRI TION
FSE F1 Advance to F step 5 by press ng ZERO.
FSE F5 Enter CAL mode by press ng PRINT.
F5.0 2 Use the TARE key to select 2 for cal brat on n pounds and press
PRINT to advance to the next step.
F5.1 1 Use the TARE key to d splay 1 for the ncrement s ze and press
PRINT to advance to the next step.
F5.2 0 Use the TARE key to d splay 0 for the dec mal locat on on the d splay
and press PRINT to advance to next step.
F5.3 E Use the TARE key to d splay E to enter cal brat on and press PRINT
to advance to the next step.
F5.4 0 Use the TARE key to d splay 0 for no l near ty correct on and press
PRINT to advance to the next step.
E.SCALE Remove all we ght from the scale and press PRINT.
0 Enter the full scale capac ty. Use the TARE to select the f rst d g t
of the capac ty then press GROSS NET to move t to the left. Th s
sequence would result n 50.
5000 Repeat the process n the step above for the second d g t unt l all d g ts
are entered then press PRINT.
07 SEC The d splay counts down ensur ng a stable read ng.
Add Ld Apply a test we ght to the scale or full capac ty f ava lable and press
PRINT.
5000 Enter the value of the known test we ght as descr bed above.
07 SEC The d splay w ll count down nsur ng a stable read ng.
CAL d The meter has accepted the cal brat on parameters. Press PRINT key
to advance to f nal step.
FCd 0 Press PRINT to store the new sett ngs n non-volat le memory.
StorE
donE The meter now reboots to make use of the new constants.
5000 The d splay shows the value of the we ght appl ed and s ready for
normal operat on.
Note: Select ng 1 for FCd w ll ex t the cal brat on mode w thout stor ng the new values. Select ng 2 for FCd
w ll store pre-programmed factory default values.
0.1 Calibration Error Codes
CE1 Insuff c ent test we ght. Value must be greater than or equal to 5%
of Full Scale Capac ty.
CE2 Full Scale Capac ty w ll exceed nternal A/D counts. Remedy by
lower ng Full Scale Capac ty we ght (CAL step E. Scale.)
Deadload may be too h gh n t ally. Add a res stor across +SEN and
SIG on TB3 to lower the counts.
CE3 Insuff c ent A/D counts for the resolut on selected. Remedy by
ncreas ng the ncrement s ze (Step F6.1.)
CE4 Mot on detected dur ng delay per od. Ensure that the scale base s
not bumped or unstable dur ng cal brat on.
CE5 The scale has gone nto overcapac ty, undercapac ty, or negat ve
dur ng delay per od. Check load cell connect ons and polar ty of
leads.
0.2 Error Displays
OLoAd Appl ed we ght has exceeded 102% of full scale capac ty.
? ? ? ? ? ? Top dashes nd cate that the max mum A/D counts have been exceeded.
Lo CAP A/D has gone below 2000 raw counts.
M ddle dashes nd cate that the d splay s attempt ng to show a negat ve number greater
than f ve d g ts.
0.1 Calibration Error Codes
CE1 Insuff c ent test we ght. Value must be greater than or equal to 5% of Full
Scale Capac ty.
CE2 Full Scale Capac ty w ll exceed nternal A/D counts. Remedy by lower ng
Full Scale Capac ty we ght (CAL step E. Scale.) Deadload may be
too h gh n t ally. Add a res stor across +SEN and SIG on TB3 to
lower the counts.
CE3 Insuff c ent A/D counts for the resolut on selected. Remedy by
ncreas ng the ncrement s ze (Step F6.1.)
CE4 Mot on detected dur ng delay per od. Ensure that the scale base s
not bumped or unstable dur ng cal brat on.
CE5 The scale has gone nto overcapac ty, undercapac ty, or negat ve
dur ng delay per od. Check load cell connect ons and polar ty of
leads.
0.2 Error Displays
OLoAd Appl ed we ght has exceeded 102% of full scale capac ty.
? ? ? ? ? ? Top dashes nd cate that the max mum A/D counts have been exceeded.
Lo CAP A/D has gone below 2000 raw counts.
M ddle dashes nd cate that the d splay s attempt ng to show a negat ve number greater
than f ve d g ts.
5.0 Sequence of Operation
1. Zero the meter w th no we ght on the platform to determ ne the po nt at wh ch
auto zero track ng s n operat on( f enabled v a Set Up step F1.4.)
2. We gh as necessary.
3. Use the TARE key to remove any tare we ght des red, e.g. a conta ner. If a tare
s used, the GROSS NET key can be used to v ew the we ght w th and w thout
the conta ner. The GROSS NET key s only operat onal f the tare we ght value
s non-zero. The meter w ll rema n n GROSS mode of operat on(GROSS
enunc ator s l t) f the tare value s zero.
4. The d splayed we ght may be toggled between pounds and k lograms at any
t me w th UNITS key f dual un ts have been enabled n Set Up Mode.
5. Use the PRINT key to send out the conf gured data to the pr nter/computer.
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