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.
0On 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