PT WS7 User manual

WS7
Pricing Scale
Operator Manual
Rev. 6.6.2
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.
.pt-global.com

WS7 Operator Manual Rev 6.6.2
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
. FEATURES AND SPECIFICATIONS............................................................................................
3.1.Features..............................................................................................................................3
3.2.Specifications......................................................................................................................3
3.3.Product Package................................................................................................................3
3.4.Error Messages..................................................................................................................3
4. DISPLAY........................................................................................................................................4
4.1.Vendor Side........................................................................................................................4
4.2.Customer Side....................................................................................................................4
4.3.Description..........................................................................................................................4
5. OPERATION..................................................................................................................................5
5.1.Key Description...................................................................................................................5
5.2.Basic Operation..................................................................................................................6
5.2.1.S itching the Scale on / Re-zeroing ...................................................................6
5.2.2.Using TARE to Deduct the Weight of a Container...............................................6
5.2.3.Weighing and Price Calculation...........................................................................6
5.2.4.Calculating the Price of Multiple Items................................................................6
5.2.5.Calculating the Change for a Sale.......................................................................6
5.2.6.Using the Price Accumulation Function...............................................................7
6. ADDITIONAL FUNCTIONS...........................................................................................................8
6.1.Back Light Settings.............................................................................................................8
6.2.RS232 Settings...................................................................................................................8
6.2.1.Setting the baud rate...........................................................................................9
6.2.2.Setting the transmit mode....................................................................................9
Page 1

WS7 Operator Manual Rev 6.6.2
2. PREPARATION
To enable you to use this scale correctly, we suggest that you read this manual carefully
2.1. Before using the scale
1. Please keep the scale in a cool and dry place. Do not store at high temperatures.
2. Do not allo any liquids to come into or contact ith the scale. If it is happened,
ipe the scale dry ith a cloth.
3. Avoid objects impacting ith the scale. Do not drop loads onto the scale or subject
the eigh pan to any strong shock loads.
4. The load placed on the eigh pan must not exceed the maximum eighing
capacity of the scale.
5. 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.
6. Do not mix different types of dry battery or mix used dry batteries ith ne dry
batteries.
7. Before using the scale after a long period of storage, please ensure that the
internal battery is fully charged. If the scale ill not be used for some time, the
scale must be recharged (the internal battery) every 3 months 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 use
1. Unpack the scale carefully and place it on a firm surface. Fit the platform and
stainless cover on the scale and remove any packing materials that may be
underneath. A plug is provided in the box to cover the calibration access hole in the
base of the scale. The scale comes ith a clear protective cover but also has a
protective film on the button panel. It may be necessary to lift the protective cover
to remove the film.
1. For accurate eight readings locate the scale on a firm level surface free from
vibrations.
2. Avoid operating the scale in direct sunlight or drafts of any kind.
3. 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.
4. 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.
5. For best accuracy s itch the scale on for 15~20 minutes before use.
6. Please note hen the symbol appears on the screen, the batteries need to
be recharged.
7. All goods eighed should be placed in the centre of the eigh pan for accurate
eighing. The overall dimensions of the goods being eighed should not exceed
the dimension of the eigh pan.
8. 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 of the scale
calibration or gravity value may be needed.
9. The plug covering the calibration access port in the underside of the scale should
be fitted before installation is completed.
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WS7 Operator Manual Rev 6.6.2
. FEATURES AND SPECIFICATIONS
.1. Features
●Multi-function operation: Fast eighing operation; Auto po er-off; double sided
LCD display (vendor and customer displays); a summation feature allo s sub-
totalling of several items; “ Addition Calculation”; patented anti-insect sealing.
●User-friendly design: Simple calibration; Large LCD display (8.5mm x 18.5mm);
lo battery arning indicator; double over-load protection.
●Dual-power source: The po er source can either be from AC or rechargeable
batteries.
●Stainless steel pan
●Back light on vendor side
.2. Specifications
Model Capacity Division Resolution Min. Cap.
WS7-6 6 kg 2 g 1/3000 40g
WS7-15 15 kg 5 g 1/3000 100g
WS7-30 30 kg 10 g 1/3000 200g
Operating Temperature 0°C ~ 40°C (32°F ~ 104°F)
Po er Source AC 110V/230V (±10%) and DC 6V rechargeable battery
Weigh pan Size 300 x 225 mm
POWER CONSUMPTION
About DC 20mA
About DC 40mA( ith back light )
LOW BATTERY
When appears at the corner of the display, the battery needs recharging.
Note
Please charge the battery hen the display sho s the symbol.
If the scale is not recharged in time, after 20~30 hours use the po er ill be automatically
cut off to protect the battery life. Please immediately recharge the battery.
. . Product Package
●Scale 1 off
●User manual 1 off
●Mains po er cord 1 off
●Please contact to your supplier, if any of the items described above are missing.
.4. Error Messages
E1 ⇒ Zero is higher than 10% total span (zero range) hen the scale is s itched on.
E2 ⇒ Zero is lo er than 10% total span (zero range) hen the scale is s itched on.
E6 ⇒ The internal value is over 80000.
E7 ⇒ The internal value is less than 55000.
-OL- ⇒ The eight of the object is over the maximum capacity + 9 divisions.
Page 3

WS7 Operator Manual Rev 6.6.2
4. DISPLAY
4.1. Vendor Side
WEIGHT kg
UNIT PRICE
$/kg
Z
NET

 00000 000.00
TOTAL PRICE $
M+

0000.00
4.2. Customer Side
WEIGHT kg
UNIT PRICE $/kg
TOTAL PRICE $
Z
NET

 00000 000.00 M+ 
0000.00
4. . Description
●“WEIGHT” display indo : 5 digits ith “ – “ ahead to sho negative numbers.
●“UNIT PRICE” display indo : 5 digits ith a decimal point, 2 digits behind the
decimal.
●“TOTAL PRICE” display indo : 6 digits ith 2 digits behind the decimal point.
●
: “Lo Battery” indication.
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WS7 Operator Manual Rev 6.6.2
5. OPERATION
5.1. Key Description
0 ~ 9 :To set the unit price. Key in the number ithout decimal point. i.e key 435 for
4.35
• :When entering the price, this is to shift the entry past the decimal point to hole
dollars. i.e enter 4. for 4.00
CE :To correct a price entry, push this key to reset it back to 0 and key in the ne unit
price.
Q’TY :When there is more than 1 piece of the same item, input the unit price first,
press Q’TY and then the number of items as a round number bet een 0 and
999. The total amount ill sho up in the total price indo . At this point, press
+ to store it in memory.
M+ :For the total price display of the commodities to be made by eight and price.
Press M+ to store the price in memory. Press M+ to print the data (only if the
RS232 option is installed).
+ :Key in the price of commodities ithout eighing. The price sho s on the
display of unit price. Press + to store the price in memory.
MR :When there are stored prices in the memory, press MR to sho each item
accordingly.
MC :Press MC to clear the “Accumulated” amount.
CH :When you press the CH key, the “total price” ill display the total amount of the
sale, then hen you key-in the sum total paid from customer, the “unit price” ill
display the change for the customer.
T :Put the container or packaging on the platter and press T to subtract the
container/packaging eight and return the display to zero; if the ord NET on
the display is indicated by “ ◄ ”, it sho s that the container eight has been
deducted. After removing all items from the platter, if there is a display of eight
in a negative direction in the eight indo , press the T key again and the
eight ill return back to zero, and the “ ◄ ” on the display indicating the ord
NET ill turn off.
Z :When the eight indo of the scale does not return zero, the scale can be re-
zeroed by pressing this key, and Z on the panel ill be indicated by “ ◄ ” to
sho the scale is at zero.
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WS7 Operator Manual Rev 6.6.2
5.2. Basic Operation
5.2.1.Switching the Scale on / Re-zeroing
1. When the scale is off, use the s itch located under the recess on the right hand
side to turn the scale on. The displays count do n from 9999 to 11111 as the scale
initialises ready for use.
2. When the scale is on and ithout any object placed on the eigh pan, press Z
key to obtain a zero reading. the top ”◄” sho s in the left hand side of the display
indicating Z, the scale is ithin zero range.
5.2.2.Using TARE to Deduct the Weight of a Container
1. Place the container or packaging on the eigh pan. After the reading stable, press
the T key to deduct the eight value of the container. The tare annunciator (the
bottom ”◄” sho s in the left hand side of the display indicating NET) ill display.
2. Place the object in the container, the scale ill sho the net eight value of the
object.
3. To use a ne container or packaging place the ne container on the scale and
Press the T key, it is not necessary to clear the tare bet een different containers.
4. To remove the stored tare value (return the scale to normal eighing) remove the
container and any contents, and the display sho s the negative eight value of the
container. Press the T key to clear the eight value of the container, and the
bottom ”◄” indication (NET) goes off. It may be necessary to also press CE and
then T to clear any incomplete entry process.
5. Tare continuously (Press the T key, hen eight is added or deducted on the
eigh pan so the next amount added or removed can be eighed).
6. Tare value = The full capacity (The scale can be tarred continuously to the full
capacity).
5.2. .Weighing and Price Calculation
1. Enter the unit price ($/kg) for the item(s) to be eighed ith the number keys.
Place the item on the scale and the total eight is sho n.
2. Remove the item and place the next item on the scale. If the unit price is the same
the total price is indicated correctly (the unit price does not need to be re-entered).
If the unit price is different, use the number keys to enter a ne unit price.
5.2.4.Calculating the Price of Multiple Items
1. If you have a quantity of individually priced items you can use the scale to calculate
the total. i.e. 8 items at $2.35 each.
2. Input the unit price ith the number pad.
3. Press the QTY key.
4. Input the quantity of items ith the number pad. The scale sho s the total price for
those items.
5. Use the CE key to return to the normal price calculating mode.
5.2.5.Calculating the Change for a Sale
1. Press the CH key to sho the total sale amount (total of accumulated items).
2. Enter the amount tendered by the purchaser ith the number pad.
3. The change required to be paid to the purchaser is sho n in the Unit Price indo .
If the amount is less than $100.00 dollars it is preceded by a C to indicate change,
i.e. C17.28.
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WS7 Operator Manual Rev 6.6.2
5.2.6.Using the Price Accumulation Function
1. The scale can accumulate the price of individual items to provide a total sale price.
2. To add a eighed item into the accumulator press the M+ key ith the item still on
the scale as in 5.2.3. The total price for this item ill be stored.
3. To add a total price for a quantity of items into the accumulator press the + key
hen the total price is sho ing after 5.2.4, calculating the price of multiple items.
4. To add a set dollar amount into the accumulator key the amount into the number
pad (the amount ill sho in the unit price indo ) and press the + key. That
amount keyed and not the total price ill be stored.
5. Use the MR key to sho the total and each individual stored item price. The MR
key can be used to move through the display of each individual item. When the
display sho s -nn-, nn is the stored data record number. When the display sho s
znnz, the sum of the data for points 01 to nn is displayed. When the display sho s
=nn=, nnn is the quantity.
6. Use the MC key to clear the accumulated prices. When displaying a particular
stored data record the MC deletes only that record. In normal eighing mode MC
deletes all stored data records.
7. Use the CH key as above to calculate change for the total.
8. CE returns to normal eighing.
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WS7 Operator Manual Rev 6.6.2
6. ADDITIONAL FUNCTIONS
6.1. Back Light Settings
There are t o methods to set the back light.
1. Press Z key, the unit eight displays CEntr, follo ed by pressing the 5 key, the
back light mode is set to off.
2. Press 0 key about 2 seconds, the buzzer ill beeps three times, hich means
the scale has s itched to Auto-back light mode.
Auto-back light mode
The back light ill be on hen a load is placed on the platter (the load must be over 10d)
or pressing any keys on the keyboard.
When the scale returns to zero, the back light ill turn off automatically after 5 seconds.
Note:
The back light status ill be memorized.
When the scale is turned on the back light mode ill be the same as hen the scale as
last turned off.
6.2. RS2 2 Settings
The RS232 port is fitted as an option. If fitted it allo s printing and connection to a
computer for transmission of eight and price values. The connection is a 3 ire
connection. To connect to a PC 9 pin or 25 pin connector see belo . If problems persist
due to a 3 ire connection (RTS, CTS, DTR, DCR being unset) it may be necessary to
link some of the pins on the PC connector so it is handshake looped.
WS7 PC DB9 PC DB25
Pin Name Pin Name Pin Name
2 RxD 3 TxD 2 TxD
3 TxD 2 RxD 3 RxD
7 GND 5 GND 7 GND
Settings of 8 data bits, no parity, 1 stop bit should be used. If this is not available use 7
data bits, even parity, 1 stop bit.
Page 8