WeighTech WT3000-P User manual

WEIGHTECH Conversor WT-420 –Manual Técnico
Wt420_mt_v20150729 Página 1
WT3000-P
Weight Indicator.

WEIGHTECH Conversor WT-420 –Manual Técnico
Wt420_mt_v20150729 Página 2
Thank you for choosing Weightech!
Now, in addition to acquiring an equipment of excellent quality, you will have an
agile, dynamic and differentiated support team to solve any problems.
Before using your Weighing Indicator WT3000-P for the first time, read this
manual carefully. You can also get additional information on this and all other
WEIGHTECH USA products at www.weightechusa.com

WEIGHTECH Conversor WT-420 –Manual Técnico
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ÍNDICE
1SPECIFICATIONS...............................................................................................5
2SAFETY REMINDER ..........................................................................................6
3EXTERNAL APPEARANCE ...............................................................................6
4CONNECTIONS..................................................................................................8
5KEYPAD FUNCTION ..........................................................................................8
6OPERATION .......................................................................................................9
6.1. CHARGING THE INDICATOR ...................................................................................9
6.2. POWER SUPPLY ...................................................................................................9
6.3. DISPLAY ............................................................................................................10
6.4. MANUAL ZERO ...................................................................................................10
6.5. TARE FUNCTION.................................................................................................11
6.6. PRE TARE FUNCTION..........................................................................................11
6.7. GROSS AND NET WEIGHT INDICATION...................................................................12
6.8. PIECE COUNTING................................................................................................12
7CONFIGURATION ............................................................................................13
7.1 USER CONFIGURATION.......................................................................................14
7.2 SERIAL COMMUNICATION ....................................................................................17
8TRANSMISSION FORMATS DESCRIPTION....................................................20
8.1 SERIAL COMMANDS ............................................................................................24
9CALIBRATION PARAMETERS ........................................................................26
9.1 ACCESS TO THE CALIBRATION JUMPER ................................................................26
9.2 CALIBRATION AND SETUP MENUS.........................................................................27
9.3 CAPACITY AND DIVISION SETTING ........................................................................28
9.4 CALIBRATION .....................................................................................................29
9.5 FILTER AND AUTO ZERO CONFIGURATION.............................................................30

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10 DETAILED CONNECTIONS .............................................................................32
10.1 LOAD CELL CONNECTION ....................................................................................32
10.2 SERIAL OUTPUT CONNECTION .............................................................................33
10.3 CONNECTION OF SERIAL OUTPUT RS 232 OR RS 485.................................34
10.4 CONNECTIONWITH PRINTER ZEBRA TLP 2844...........................................35
10.4.1 PRINTER SETUP ................................................................................................35
10.4.2 SETTING THE INDICATOR....................................................................................35
10.4.3 PRINT BUTTON ..................................................................................................36
10.4.4 CONNECTION WITH ZEBRA PRINTER....................................................................36
10.5 REMOTE DISPLAYS DR-WT75DR-WT125 E DR-WT200......................................36
10.5.1 SETTING THE INDICATOR....................................................................................36
10.5.2 CONNECTIONS WITH REMOTE DISPLAY DR-WT75DR-WT125 E DR-WT200.........37
10.6 BLUETOOTH CONNECTION INTERFACE (OPTIONAL) ............................................37
11 SELF-TEST MODE ...........................................................................................38
12 ERROR MESSAGES ........................................................................................39
13 APPENDIX........................................................................................................40
14 WEIGHTECH LOCATIONS...............................................................................41

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1 SPECIFICATIONS
Table 1
Input sensitivity
µV/d
0,3
Input signal range
mV/V
From -1 up to +14
Input zero range
From -1 up to +5
Units
kg, g and lb
Internal resolution
1 / 500.000
Non-linearity
0,01% FS
Load cell drive capacity
Up to 8 x 350Ω
Load cell excitation
VDC
5
Load cell connection type
6 wires
Power supply
VAC
AC 110 or 220V 50/60HZ - Battery internal
rechargeable 6V/4,5Ah
Power consumption
mA
150
Operation temperature
°C
de 0 a +40
Display
mm
6 digits LCD with backlight
Display height
55
Display label
Zero, Net, Battery level, Stable, Gross, High,
Low and OK.
Communication interfaces
RS232 output
Degree of protection
IP-68

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2 SAFETY REMINDER
•The indicator should not be directly exposed to intense sunlight.
•The indicator should be used in a flat and leveled surface.
•The AC power supply must be grounded.
•This equipment may not be used in hazardous areas.
•Do not use corrosive products to clean the indicator.
•Power off the indicator before connecting to any other devices, including the load cell.
•If the indicator will not be used for prolonged periods of time, is recommended that the
battery installed inside the equipment needs to be recharged every 3 months in order to
prevent damage.
3 EXTERNAL APPEARANCE

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4 CONNECTIONS
5 KEYPAD FUNCTION
Switch the power on/off.
Function key specified by the parameter FnC 12.
Toggle the display of gross and net weight values.
Switches the operation of the indicator between weighing and piece
counting.
Zero balance function.
Tare function.
Performs the accumulation of weight value show on the display and
sends the weight value through the serial port.

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6 OPERATION
•To turn onthe indicator, pressthe key . The display performs the self-test indicating
"999999" to "000000". Then goes into weighing mode.
•To turn off the display press and hold for about 2 seconds button.
6.1.CHARGING THE INDICATOR
To charge the internal battery, connect it to the power source, the supply voltage is (110V or
220V).
The battery charging time is about 8 hours and the battery life is up to 15 hours.
•Caution: Before connecting the indicator to power supply check the selected voltage
transformer located inside the indicator housing.
6.2.POWER SUPPLY
•Caution: Before connecting the indicator to power supply check the selected voltage
transformer located inside the indicator housing.
To select the voltage for the power supply, use the wires connected to the transformer located
inside the equipment.
Wire colors
Voltage selected
red and black
220V
blue and black
110V
•Important: Latest version of this device have aautomatic voltage selectionon power supply.

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6.3.DISPLAY
Zero indication.
“STAB”
Stability indication.
“NET”
Net weight indication
Insufficient sample indication.
“PT”
Pre-tare function indication.
“Pcs”
Pieces counting indication.
“M+”
Indication of cumulative weighing in memory.
Battery charge level indication.
Connected to AC power source indication.
Bluetooth transmission indication.
6.4.MANUAL ZERO
Press to reset the zero balance of the indicator.

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6.5.TARE FUNCTION
The tare function is used to discount the weight of containers.
Press , the indicator will discount the weight value show non the display.
The tare operation is cumulative, or may be performed more than once. To activate the TARE,
the indicator has to be indicating positive and stable weight.
To cancel the tare just push the button with the platform without weight applied.
6.6.PRE TARE FUNCTION
The tare function is used to discount the weight of containers generally allowing the user to type
the amount of weight that will be discounted.
By pressing , when there is no weight applied on the platform, the indicator toggle the pre-
tare function active showing the message “pt__” on the display. Type the pre-tare value using
the keys , , and .
After entering the pre-tare value, just press the key to confirm.
To clear the value of pre-tare, press with the empty platform, or insert a nullvalue pressing
tare with the platform without weight applied.
The pre-tare is very useful to discount the weight of containers whose tare value is already
known, with no need to weigh the empty container.
•The pre-tare value typed cancels previously existing tare values.

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6.7.GROSS AND NET WEIGHT INDICATION
To switch between gross weight and net weight indication, press the .
When the net weight is displayed, indicating the net weight will be displayed.
6.8.PIECE COUNTING
To activate the piece counting function or change the sample press .
Select the number of pieces in the pressing the , then apply the amount of selected pieces
on the platform and press the , the indicator will show the number of pieces on the platform,
to switch between piece counting and weighing press .
•Important: The caption shows that the applied weight is insufficient to piece counting
function, the average weight of each piece cannot be less than 0.2 d.

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7 CONFIGURATION
To access the user configuration menus press and at the same time.
- User configuration.
- Unused parameter.
- Serial comm port configuration.
- Exit the user configuration menus.
•Important: To access the configuration menu, the indicator must be working in weighing
mode.

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7.1 USER CONFIGURATION
Once inside the 01 FnC menu press and select the parameters FnC-00 to FnC-13, press
to confirm. Perform the desired alteration and press to save and return to the
parameter selection menu.
Use the keys , , and to navigate through the menu screens.
Paramete
r
Function
Code
Description
Factory
default
FnC-00
Returns to
the previous
menu
FnC-00
Returns to the previous menu
---.---
FnC-01
Backlight
bL OFF
Backlight off
bL OFF
bL On
Backlight on
•If the “bl On” option is selected, the backlight will turn on automatically when the weight applied is greater
than 10d and will turn off automatically after 10 seconds without variation in the weight applied.
FnC-02
Auto power
off
A oFF 0
Disabled
A oFF 0
A oFF 1
Auto power off after 1 minute
A oFF 2
Auto power off after 2 minutes
A oFF 3
Auto power off after 3 minutes
A oFF 4
Auto power off after 4 minutes
A oFF 5
Auto power off after 5 minutes
A oFF 6
Auto power off after 6 minutes
A oFF 7
Auto power off after 7 minutes
A oFF 8
Auto power off after 8 minutes
A oFF 9
Auto power off after 9 minutes

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FnC-03
Check
weight
configuration
000.00h
Upper weight limit
000.00h
000.00L
Lower weight limit
000.00L
000.00b
1a1b1c.00b
a
1 → Beep on
0 → Beep off
b
1 → Beep sounds when weight is stable.
0 → Beep sounds when weight is unstable.
c
1 → Beep sounds when the weight applied is between
upper and lower limits.
0 → Beep sounds when the weight applied is 10d or
more over the upper limit and 10d under the lower limit.
000.00b
FnC-04
Unused
parameter.
---.---
Unused parameter.
---.---
Fnc-05
Filters
ZEro 0
After reaching 1/3 of the maximum load, the indicator will forces the
return to zero when the weight applied is removed.
ZEro 0
FiL 0
Stability filter from 0 to 9
Higher the value, more stable the weight show.
FiL 0
3db 5
Digital filter from 0 to 9
Higher the value, faster is the response of the indicator
3db 5
Fnc-06
Hold function
hoLd 0
Hold function disabled
hoLd 0
hoLd 1
Peak detection.
To reset the function remove the weight applied and press any
key.
hoLd 2
Freezes the weight show on the display when stable.
To reset the function remove the weight applied and press any
key.
hoLd 3
Freezes the weight show on the display when stable.
The function will resets when the weight applied is less than
10d.
hoLd 4
Animal weighing mode.
At zero the indicator shows "---. ---" When a load is applied, the
indicator immediately starts the calculation of the applied load,
returning to indicate "---. ---" When the measured load is less
than 10d.
After activate the animal weighing is necessary to set the
parameters for calculating the weight.
Code
Description
Factory default
010%
Range of error in
measurement.
Range 1% to 100%
010%
8
Number of samples
used to calculate
the weight.
Range 1, 2, 4, 8, 16,
32 or 64 samples.
8
hoLd 5
Animal weighing mode 2
When a load is applied the indicator immediately starts to
measure the weight value, after determine the weight value

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aplied, the indicator shows the resulto on the display with the
caption "HOLD".
After activate the animal weighing function, the user must set the
parameters for weighing calculation as the table below shows.
Code
Description
003.000
Weight variation
range to initiate new
weight calculation
0-Máx Capacity
hoLd 6
Tare operation for hospital care
This function allows the user top ut or remove weight from the
scale without change the NET weight value.
Top ut or remove any weight in the scale without change the
NET weight value press , put or remove any load from the
scale and then press again.
After activate this function the user must set a weight variation
range to activate the bed abandonment alarm.
Code
Description
003.000
weight variation
range to activate the
bed abandonment
alarm.
0% - 100%. máxima
FnC-07
Average
weight
AvErG0
Average weight on
AvErG0
AvErG1
Average weight off
FnC-08
Unused
parameter.
---.---
Unused parameter.
---.---
FnC-09
Unused
parameter.
---.---
Unused parameter.
---.---
FnC-10
Inicial zero
memory
Z oFF
Zero memory off
Z oFF
Z on
Zero memory on
Important: This function is not available if the parameter CFn 02 = 4
FnC-11
Foot switch
function
ZEro
The foot switch acts like the “Zero” key.
ZEro
tArE
The foot switch acts like the “Tare” key.
Print
Performs the accumulation of the weight value show on the
display and sends the information through the serial port.
FnC-12
F key function
mC
Erase the records of accumulations performed.
hr
hr
For 5 seconds the weight is displayed with one more decimal place.
t-tP
Enters the pre-tare function
t-b
Activates the alarm for bed abandonment function (FnC 06 –hold 6).
r-HOLD
Starts a new weight calculation during live animal weighing function.

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7.2 SERIAL COMMUNICATION
Attention: The settings in this menu are assigned to onboard serial port and any other
accessories that will send data from the indicator.
Once inside the 03rS1 menu press and select the parameters rS1-00 to rS1-12, press
to confirm. Perform the desired alteration and press to save and return to the
parameter selection menu.
Use the keys , , and to navigate through the menu screens.
Parameter
Function
Code
Description
Factory
default
rS1-00
Returns to the
previous menu
rS1-00
Returns to the previous menu
---.---
rS1-01
Baud rate
configuration
b 600
Baud rate configuration.
•Important:The Bluetooth interface can onlyoperate with
9600 Baud rate.
b 9600
b 1200
b 2400
b 4800
b 9600
rS1-02
Parity,databits
and stop bit
configuration
n81
none, 8 data and 1 stop bit
n81
E71
Even, 7 data and 1 stop bit
O71
Odd, 7 data and 1 stop bit

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rS1-03
Transmission
format
configuration
F-m 0
Display value transmission
F-m 0
F-m 1
Gross weight transmission
F-m 2
Net weight transmission
F-m 3
Display value (simple format)
F-m 4
Gross weight transmission (simple format)
F-m 5
Net weight transmission (simple format)
F-m 6
Hi, Lo or OK Status and Display value (simple format)
F-m 7
Hi, Lo or OK Status and Gross weight transmission (simple format)
F-m 8
Hi, Lo or OK Status and Net weight transmission (simple format)
F-m 9
Tare value transmission
F-m 10
Number of accumulations, date, time, gross weight, tare, net weight
(The total accumulated weight is sent only when the memory is
erased) also compatible with Epson TM-U295 and TM-U220.
F-m 11
Date, time, gross weight, tare, net weight (The total accumulated
weight is sent only when the memory is erased) also compatible
with Epson TM-U295 and TM-U220.
F-m 12
Big score format (only for use with DR-WT 75, 125 and 200)
F-m 13
Printer format (only for Zebra CG420 and Elgin L42)
F-m 14
Stability status gross weight, tare, net weight and unit
F-m 15
Live animal weighing format. (for use with tag reader and printer)
rS1-04
Transmission
mode
configuration
ComAnd
Parameter
ComAnd
StrEAn
Continuous transmission
Auto
Auto transmission
rS-oFF
Disable serial transmission
n_PLuS
Accumulation mode
rS1-05
Transmission
rate setting
rPS 1
1 transmission per second
rPS 4
rPS 2
2 transmissions per second
rPS 4
4 transmissions per second
rPS 8
8 transmissions per second
rPS 16
16 transmissions per second
mAx
Maximum transmission rate
rS1-06
Minimum weight
for automatic
transmission
Zb –00
to
Zb - 99
Set the minimum number of divisions for auto transmission of a weight
value.
•Important: when this value is equal to 0 the automatic transmission
will be disabled.
Zb –05
rS1-07
Auto
transmission
reset
V-b 00
to
V-b 99
Set the minimum number of divisions to reset the auto transmission of a
weight value.
V-b 00

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•Important: when this value is equal to 0 the automatic transmission
will be disabled.
rS1-08
Output condition
ALL-P
All status transmission
StP-P
StP-P
Transmission only while stable weight applied
StoL-P
Transmission only while stable weight applied or OL status
rS1-09
Configuration of
the weight data
size
Six
6 digits
Six
SEvEn
7 digits
rS1-10
RTC
configuration
yy/mm/dd
Date setting
---.---
hh/mm/ss
Time setting
rS1-11
Date format
configuration
y_m_d
Year/Month/Day
y_m_d
d_m_y
Day/Month/Year
rS1-12
Address setting
Id 00
Indicator address
•Only for RS-485
Id 00
rS1-13
Empty spaces at
the end of
transmission
setting
n 00
Configuration of “LF” asc characters sent after the transmission.
•Only for RS1-03 = Fm10 or Fm11
n 00

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8 TRANSMISSION FORMATS DESCRIPTION
Example showing each part of the transmission format:
Examples of the transmission formats with 7 bytes of weight values:
(F-m 0, F-m 1, F-m 2 and F-m 9):
Gross
S
T
,
G
S
,
+
SP
SP
3
0
0
.
0
0
SP
SP
k
g
CR
LF
Net
S
T
,
N
T
,
+
SP
SP
2
0
0
.
0
0
SP
SP
k
g
Tare
S
T
,
T
R
,
+
SP
SP
1
0
0
.
0
0
SP
SP
k
g
Overload
O
L
,
G
S
,
+
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
Negative overload
O
L
,
G
S
,
-
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
Examples of the transmission formats with 6 bytes of weight values:
(F-m 0, F-m 1, F-m 2 and F-m 9):
Gross
S
T
,
G
S
,
+
SP
3
0
0
.
0
0
SP
SP
k
g
CR
LF
Net
S
T
,
N
T
,
+
SP
2
0
0
.
0
0
SP
SP
k
g
Tare
S
T
,
T
R
,
+
SP
1
0
0
.
0
0
SP
SP
k
g
Overload
O
L
,
G
S
,
+
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
Negative overload
O
L
,
G
S
,
-
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP