PT WS2 Series User guide

WS2
Weighing Scale
Setup Manual
Rev. 11.08.17
Innovative Measurement Electronics

Thank you for purchasing a PT Electronic Digital Scale. In order to use the
scale properly, please read this Manual carefully before use. If you have a
problem concerning the scale, please contact your supplier.
PT regularly updates and issues ne information regarding products, the
most up to date information and additional detailed information is located on
the PT eb site.
.ptglobal.com

WS2 Setup Manual Rev. 11.08.17
1. TABLE OF CONTENTS
1. TABLE OF CONTENTS ............................................................................................................... 1
2. PREPARATION ........................................................................................................................... 2
2.1.BEFORE USING THE SCALE .......................................................................................... 2
2.2.PREPARING THE SCALE FOR USE ............................................................................... 2
3. FEAT RES AND SPECIFICATIONS ........................................................................................... 3
3.1.FEATURES ....................................................................................................................... 3
3.2.SPECIFICATIONS ............................................................................................................ 3
3.3.PRODUCT PACKAGE ...................................................................................................... 3
3.4.SELECTABLE WEIGHT UNITS AND PIECE UNIT .......................................................... 3
3.5.BATTERY LIFE ................................................................................................................. 3
3.6.LOW BATTERY WARNING .............................................................................................. 3
3.7.ERROR MESSAGES ........................................................................................................ 4
4. DISPLAY AND KEYPAD .............................................................................................................. 5
4.1.DISPLAY ........................................................................................................................... 5
4.2.KEYBOARD ...................................................................................................................... 5
5. KEYBOARD F NCTIONS ........................................................................................................... 6
5.1.DISPLAY BACKLIGHT ...................................................................................................... 6
5.2.ZERO ................................................................................................................................ 6
5.3.WEIGHING MODE ............................................................................................................ 6
5.3.1.Units Selection .................................................................................................... 6
5.3.2.Totalising ........................................................................................................... 6
5.3.3.Deduction of a Container Weight ...................................................................... 8
5.3.4.Counting Function ............................................................................................... 9
6. CONFIG RATION SETTINGS .................................................................................................. 10
6.1.OPTIONAL CHECK-WEIGHING CONFIGURATION F4 ................................................. 11
6.2.OPTIONAL RS-232 SETTING F5 ................................................................................... 12
6.3.EXIT CONFIGURATION SETTINGS F6 ......................................................................... 13
7. RS-232 AND RELAY O TP T .................................................................................................. 14
7.1.RS-232 OR SERIAL PRINTER OUTPUT ........................................................................ 14
7.1.1.RS-232 Pin Description ..................................................................................... 14
7.1.2.Ho to Connect the RS232 to a PC ................................................................. 14
7.1.3.Ho to Connect Printer to Scale ....................................................................... 15
7.1.4.RS-232 Interface Format .................................................................................. 15
7.1.5.Data Format ...................................................................................................... 15
7.1.6.Transmission examples .................................................................................... 16
7.2.RELAY OUTPUT ............................................................................................................. 18
7.2.1.Relay Output ..................................................................................................... 18
7.2.2.Relay Pin Description ........................................................................................ 18
7.2.3.Connection Illustration ...................................................................................... 18
7.2.4.Po er Source Illustration .................................................................................. 18
7.2.5.Connection Setting ........................................................................................... 19
7.2.6. Relay Output Connection ................................................................................. 19
8. CALIBRATION ........................................................................................................................... 20
9. ADDEND M .............................................................................................................................. 21
9.1.LOAD CELL CONNECTION. .......................................................................................... 21
9.1.1.Load Cell Connector Pin Description ................................................................ 21
Page 1

WS2 Setup Manual Rev. 11.08.17
2. Preparation
2.1. BEFORE SING THE SCALE
To enable you to use this scale correctly, we suggest that you read this manual carefully.
1. Do not use scale in areas ith excessive ater and don’t spray the scale or indicator ith
ater hen cleaning. Remove all ater from the scale and indicator ith a clean dry cloth.
2. The load placed on the platform must not exceed the maximum eighing capacity of the
scale.
3. Keep the scale a ay from high temperatures and damp conditions.
4. If the scale is not going to be used for some time, please clean it and store it in a plastic
bag in dry conditions. A desiccant sachet may be included to prevent moisture build up.
5. If the scale is not going to be used for some time, the internal rechargeable battery should
be recharged every three months.
6. Before using the scale after a long period of storage, please ensure that the internal
battery is fully charged. NOTE: Care should be taken not to leave the internal battery on
charge for too long, as this may decrease the life of battery.
2.2. PREPARING THE SCALE FOR SE
1. Unpack the scale carefully and place it on a firm surface. Lift the platform cover off the
scale and remove any packing materials that may be underneath. Replace the platform on
to the rubber support pads. The platform has a plastic protection film hich can be
removed to expose the stainless steel surface or left in place if desired.
2. For accurate eight readings locate the scale on a firm level surface free from vibrations. If
the scale platform cover is removed a bubble level can be observed on the lo er eigh
frame to check the scale is level. The four adjusting feet can be used for levelling the
scale. The bubble should be inside the centre black circle.
3. Avoid operating the scale in direct sunlight or drafts of any kind.
4. Remove any eight that might be on the eigh pan before the scale is s itched on and
avoid leaving eight on the pan for long periods of time.
5. Once the scale has been s itched on, it ill go through a LCD display test and then re-
zero to be ready for use.
6. For best accuracy s itch the scale on for 15~20 minutes before use.
7. Please note hen the symbol appears on the screen, the batteries need to be
recharged.
8. All goods eighed should be placed in the centre of the eigh pan for accurate eighing.
The footprint of the goods being eighed should not overhang the sides of the eigh pan.
9. The acceleration due to gravity varies around the orld. The force on the scale is a product
of the gravity value and the mass placed on the scale to eigh. As the gravity value can
vary in different orld locations so can the eight displayed for the same mass. The Scales
have been calibrated for a gravity value (acceleration due to gravity) of g=9.803 m/s2.
Discrepancies in readings at the location of installation could be due to a different gravity
value and adjustment on site of the scale calibration may be needed.
10. The calibration access port is in the indicator on the side of the case. To access the
LOCK/ADJ s itch remove the small rectangular cover.
Page 2

WS2 Setup Manual Rev. 11.08.17
3. FEAT RES AND SPECIFICATIONS
3.1. FEAT RES
●Multi-function operation: Fast eighing operation; Full range tare; Pre-tare; Net /
Gross eight display; Simple counting (pcs); Pre-set eight value and quantity
value; Check- eighing configuration.
●Dual-weighing units: kilogram (kg) and pound (lb).
●ser-friendly design: Simple calibration; Large LCD display ith built in back light;
lo battery arning indicator; auto po er off; double over-load protection.
●Dual-power source: The po er source can either be from AC or built in
rechargeable batteries.
●Stainless steel pan
3.2. SPECIFICATIONS
Model Capacity Division Resolution Min. Cap.
WS2U/S/M-30 30kg (60 lb) 5g (0.01 lb) 1/6000 200g
WS2S/M/D/L-60 60kg (120 lb) 10g (0.02 lb) 1/6000 400g
WS2M/D/L-150 150kg (300 lb) 20g (0.05 lb) 1/7500 (1/6000 lb) 1000g
WS2D/L-300 300kg (600 lb) 50g (0.1 lb) 1/6000 2000g
Operating Temperature 0°C ~ 40°C (32°F ~ 104°F)
Po er Source Rechargeable batteries or AC 110V/220V (±10 %)
Weigh pan Size 380x280 mm (WS2U); 400x300 (WS2S); 520x370 (WS2M)
520x420 (WS2D), 600x460 (WS2L)
3.3. PROD CT PACKAGE
●Scale 1 off
●User manual 1 off
●AC po er cord 1 off
●Please contact to your supplier, if any of the items described above are missing.
3.4. SELECTABLE WEIGHT NITS AND PIECE NIT
Kilogram (kg) 1 kg = 1000 g
Pound (lb) 1 lb = 453.59239507 g
Piece (pcs)
3.5. BATTERY LIFE
•Normal use, the rechargeable battery can be used up to 200 hours.
•Normal use ith backlight, the rechargeable battery can be used for 60 hours
approximately.
•Normal use ith backlight and RS-232, the rechargeable battery can only be
used for 56 hours approximately.
3.6. LOW BATTERY WARNING
Please note hen the symbol is sho n on the display, the internal battery needs to
be recharged. The scale ill po er off automatically ithout recharging after the lo
battery symbol has been sho ing for 20 to 30 hours (3 to 5 hours if the back light is
active) on the display. As a recommendation, the scale must be fully recharged before
operating the scale again.
Page 3

WS2 Setup Manual Rev. 11.08.17
3.7. ERROR MESSAGES
E1 ⇒ Zero is higher than the zero range (10%) hen s itching the scale on.
E2 ⇒ Zero is lo er than the zero range (10%) hen s itching the scale on.
E4 ⇒ Zero range value is unstable.
E5 ⇒ Zero range value is unstable.
E6 ⇒ Zero range is too high out of its range during calibration mode.
E7 ⇒ Zero range is too lo out of its range during calibration mode.
E8 ⇒ Internal resolution is too high out of its range.
oF ⇒ A/D value is higher than +31250.
oL ⇒ The eight of the object is over the maximum capacity + 9 divisions.
ErrC ⇒ After calibration the displayed resolution is greater than the internal
resolution.
Errs ⇒ Error setting.
----H ⇒ The eight value is greater than the zero range, hen re-zeroing the scale.
----L ⇒ The eight value is belo the zero range, hen re-zeroing the scale.
Page 4

^
Pcs
Pcs
WS2 Setup Manual Rev. 11.08.17
4. DISPLAY and KEYPAD
4.1. DISPLAY
HIGH :Preset High Limit Weight Value
OK :The range bet een Lo & High Limit Weight Value
LOW :Preset Lo Limit Weight Value
kg :“kg” unit
lb :“lb” unit
Pcs :“COUNTING” mode indicating the number of pieces
>0< :“ZERO” indication and platform stable confirmation
Net :“Net Weight ”indication
:“Lo Battery” indication
1stn :(STABLE) “Stable” indication
2ndn :(M+) “Accumulation” mode
3rdn : ( ) “Sample Too Small” indication
4thn : ( ) “Piece Weight Too Small” indication
4.2. KEYBOARD
1. : Sample Key to set the sample quantity.
2. : Press this key to enter the counting mode.
3. : Units Key to choose the desired unit eight (kg or lb).
4. : Accumulation Key to add the displayed value into memory.
5. : Use the key for data entry or selecting the backlight mode.
6. : Tare Key to deduct the container eight.
7. : Zero Key to re-zero the scale.
8. : Re-call accumulated or preset tare value.
9. : Clear Key to delete the existing accumulated values.
10. : Confirmation Key. Print Key to print out the total data.
Page 5
.
. .
. . .
. . . .
kg
↵
.
. .
. . .
. . . .
+
T
→0←
R
CE

WS2 Setup Manual Rev. 11.08.17
5. KEYBOARD F NCTIONS
5.1. DISPLAY BACKLIGHT
Press the
^
key to choose the desired display backlight mode:
bL.AUto ⇒ “Auto Backlight” mode. When the eight is over 10 divisions or any key is
pressed, the display backlight ill be s itched on. When the eight returns
to zero or the eight on platform is less than 10 divisions, the display
backlight ill s itch off after 5 seconds.
bL.on ⇒ Display backlight is on all the time.
bL.off ⇒ Display backlight is off.
5.2. ZERO
Press the
→0←
key to re-zero the display ith no load on the eigh pan. When
zero is set, the (0) symbol ill be displayed.
5.3. WEIGHING MODE
5.3.1. nits Selection
1. Press the
kg
key in the eighing mode to choose the desired eighing
unit and the display ill sho the “kg” or “lb” symbol on the top right of the LCD
display.
2. The unit status ill be stored hen the machine is turned off.
5.3.2.Totalising
1. The scale allo s the next totalising operation, even if the eight value does not
return back to zero. The
+
key is functional, hen the eight value
changes by more than 10 d. The scale ill store the totalised eight value after the
eight is stable.
2. The scale can totalise positive or negative eight but not both at the same time.
The totalised eight store must be reset to zero before it is possible to select
positive or negative totalising mode.
I. Weight Totalising
●The totalising function can be used up to a maximum of 9999 times before it must
be reset.
●The totalising display is limited to 6 digits maximum.
Page 6

WS2 Setup Manual Rev. 11.08.17
II. Recall Totalised Weight Values
●Press the key to display the total number of additions and the totalised
eight value. The 2nd “n” symbol located above (M+) icon ill flash on the display.
The scale ill return to the eighing mode after 3 seconds.
●The scale ill not display the negative sign “-” for negative totalised eight values
hen recalling a totalised eight value, but the negative sign “-“ ill be printed out
(transmitted serially) for each negative eight and negative totalised eight.
III.Clear Totalised Weight Values
●Press the key follo ed by pressing the
CE
key to clear the
totalised eight values.
●All totals ill be lost in the follo ing three circumstances:
1. The mode is changed from eighing to counting or vice versa.
2. The scale is s itched off.
3. The eight unit is changed.
Page 7
1 . 0
-0 00 1-
kg
Place the object onto the
scale.
The display sho s
the eight value
Press the + key
The display sho s the
total number of additions
The total eight totalised
sho s and the 2nd “n”
flashes on the display
STABLE
0 . 0
1 . 0
n
STABLE
kg
kg
M+
STABLE
R
R
ACTION DISPLAY
n
nn

WS2 Setup Manual Rev. 11.08.17
5.3.3.Deduction of a Container Weight
I. The weight of the container is unknown ( Tare )
II. Recall the semi-auto tare value
Press the key follo ed by pressing the key ⇒ The display
sho s the tare eight value.
III.Clear the semi-auto tare
When the container is removed from the scale, the display sho s the container
eight value ith a negative sign. Press the key to reset the scale to
zero, and the (Net) symbol ill s itch off.
NOTE:
Multiple tare operation ⇒ Users can continuously increase or decrease the tare value by
pressing the key.
The total tare value (tare value + pre-set tare value) can equal the full capacity of the
scale.
Page 8
Place the container onto the
scale. The eight of the
container is sho n
Press the
T
key hen the
eight is stable.
The eight value becomes
zero and the (Net) symbol is
displayed
Place the object into the
container and the display
sho s the net eight value
of the object.
1 .0
0 .0
2 .0
STABLE
kg
STABLE
kg
STABLE
kg
Net
Net
T
ACTION DISPLAY
n
n
n
R
T
T