Excell PWH3, QW, GW User Manual

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PWH3
© Excell Precision Limited 2015. All rights reserved Worldwide.
The information contained herein is the property of Excell Precision Limited and is supplied without liability for errors or omissions. No part may be reproduced or used except as authorised by contract or other written permission. The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied.
EXCELL PRECISION CO., LTD
02005159 ZSME300000225
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Table of Contents
Special Notice .................................................................................................................................. 3
Before Using the Scale................................................................................................................... 4
Instructions for Use ......................................................................................................................... 4
Preparing to Use the Scale ............................................................................................................ 4
Chapter 1 Introduction .................................................................................................................... 6
1-1 Product Features .................................................................................................................. 6
1-2 Specifications ........................................................................................................................ 6
1-3 Product Appearance ............................................................................................................ 6
1-4 Display Description .............................................................................................................. 7
1-5 Power Supply ........................................................................................................................ 7
1-6 Keypad Function ................................................................................................................... 8
1-7 Self-Te st Mode .................................................................................................................... 10
1-8 Error Messages .................................................................................................................. 11
1-9 Weight Units ........................................................................................................................ 11
Chapter 2 Configurations ............................................................................................................. 12
Configuration Workflow ............................................................................................................... 12
2-1 General Function Setting .................................................................... 13
2-1-1 Auto Backlight Function Setting .................................................. 14
2-1-2 Auto Power-off Timer Setting ...................................................... 15
2-1-3 HI/LO/OK Settings ......................................................................... 16
2-1-4 Restore to the Default Settings .................................................... 17
2-1-5 Noise Filter Settings ..................................................................... 18
2-1-6 Hold Function Settings ................................................................. 19
2-1-7 Auto Unit Weight Averaging Setting ........................................... 22
2-1-8 Record Last Zero ........................................................................... 22
2-1-9 Foot Switch Settings (Option) ..................................................... 23
2-1-10 F Key Function Settings ....................................................... 24
2-1-11 Zero Setting ................................................................................. 24
2-2 External Weight Calibration ................................................................... 25
2-3 RS232 Serial Interface Settings .......................................................... 26
2-3-1 Baud Rate Settings ..................................................................... 27
2-3-2 Communication Protocol Settings .......................................... 28
2-3-3 Output Format Settings ............................................................... 29
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2-3-4 Continuous Transmission Settings ............................................ 31
2-3-5 Selection of the Continuous Transmission Rate ........................... 32
2-3-6 Auto Transmission at Zero .......................................................... 33
2-3-7 Reset Auto Transmission ............................................................... 34
2-3-8 Output Condition Settings ............................................................. 35
2-3-9 RS232 6/7 Digits Setting ............................................................... 36
2-3-10 RTC Adjustment ............................................................. 37
2-3-11 Y/M/D Print Layout Selection ........................................................ 37
2-3-12 RS485 ID Input (Option) ................................................................ 38
2-3-13 Line Feed Input ............................................................................ 38
Appendix 1 ASCII Code Table .................................................................................................... 43
Appendix 2 7-Segment Display Characters ............................................................................. 44
Appendix 3 Wiring Instructions .................................................................................................. 45
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Special Notice
While installing the load cell, power cord hookup or replacing a new rechargeable battery, the indicator housing must be opened. It must be done by a technician assigned by your electronic indicator provider to avoid affecting the waterproof ability of this indicator. Before opening the housing, make sure the indicator is dry, if there is any liquid on it, please wipe it with a clean cloth.
HOW TO INSTALL THE HOUSING
After installing the load cell, power cord hookup or replacing a new rechargeable battery, the housing must be screwed by the assigned order as shown below. Screw lightly first, then screw them tight using a 12 kgf-cm torsion. P.s. Please use a torsion-adjustable screw driver.
Screwing order:
1
2
3
4
5
6
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Before Using the Scale
In order to use this scale correctly, we suggest that you read this manual carefully.
Instructions for Use
1. The load placed on the weigh pan must NOT exceed the maximum weighing capacity of the scale.
2. Protect the scale from high temperatures.
3. Avoid objects impacting with the scale. Do not drop loads onto the scale or subject the weigh pan to any strong shock loads.
4. Please operate or charge the scale in an open area. Do not squeeze the power cord to avoid wire on fire.
Preparing to Use the Scale
1. Locate the scale on a firm level surface free from vibrations for accurate weight readings.
2. Adjust the four levelling feet (if fitted) to set the scale pan level.
3. Avoid operating the scale in direct sunlight or drafts of any kind.
4. If possible avoid connecting the scale to ac power outlet sockets which are adjacent to other appliances to minimise the possibility of interference affecting the performance of the scale.
5. Remove any weight that might be on the weigh pan before the scale is switched on and avoid leaving weight on the pan for long periods of time.
6. All goods weighed should be placed in the centre of the weigh pan for accurate weighing. The overall dimensions of the goods being weighed should not exceed the dimension of the weigh pan.
7. Once the scale has been powered on, it will go through an LCD display test and it is ready for use when the display shows zero.
8. The scale requires 15~20 minutes warm up before operation to ensure best accuracy.
9. Please note when the symbol keeps flashing on the screen, the batteries need to be charged.
10. Introduction of Storage Battery
Thank you for purchasing EXCELL WEIGHING INDICATOR, to help use the product properly, operate smoothly, and extend its life cycle, please read this manual carefully.
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No burning
Caution Corrosion
Due to the storage battery adopt the advanced free-maintaining technique, customers need not to replenish electrolyte. The scale should be recharged every 3 months to prevent failure of the internal rechargeable battery.
1. The battery should be charged for 8~10 hours.
2. The temperature of battery should below 45.
Maintaining
1. Please do not discharge with over-current when using the battery. Please charge the battery after discharging current.
2. Please take down the battery when the scale is not used for a long time or break the connection of cathode.
3. Do not short the battery terminals to check whether there is current. Please check whether the connection point is firm to guarantee good connection.
4. The battery should be replaced by specialized person. No reverse-battery or the product will be damaged.
a) Anode of battery should be connected with Anode of product batteryusually red
cable
b) Cathode of battery should be connected with Cathode of product battery (usually
brown cable or black cable)
c) See the picture following
Safety warnings
1. The electrolyte of battery is caustic which causes metal, cotton, etc to corrode.
2. The hydrogen will be resolved when using or charging the battery and it will cause explosion when approaches fire.
Brown cable(or black cable) connected with Anode of battery
Red cable connected with Cathode of battery
Warning explosion
Children faraway
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Chapter 1 Introduction
1-1 Product Features
Sealed to IP68, (Only use cables of 3mm~5mm diameter to ensure
correct sealing of the cable glands)
Kilogram (kg) and pound (lb) weighing modes Full range tare; Pre-tare; Auto zero tracking; Sampling counting; Gross/Net indication Adjustable gravity value Low power indication and auto power off AC/DC power in and rechargeable battery. Built-in RS-232 Options: pressure release valve, foot switch
1-2 Specifications
Analogue Input: Input Sensitivity 0.3 V/d (Min.) Input Signal Range: -1mV~+14mV Input Zero Range: -1mV~+5mV
Load Cell Excitation: 5V DC Load Cell Drive Capacity: Up to 8 x 350 load cells Non-linearity: 0.01% of full scale A/D Resolution: 500,000 counts (Maximum)
Operating temperature: -10 ~ 40
1-3 Product Appearance
256 mm
170 mm
90 mm
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1-4 Display Description
HI
:
Upper limit
indications description
OK
:
Value between HI and LO
1
:
(STABLE) stable indication
LO : Lower limit
2
:
(GROSS) gross weight indication
kg
:
Unit “kilogram”
3
:
(
Pcs
) unit weight insufficient indication
lb
:
Unit “pound”
4
:
( PT ) pre-tare indication
t
:
hk tael
5
:
(Hold) weight hold indication
Pcs
:
Counting mode indication
6
:
“GN”“dwt” “carat” 、”M+” unit indication
0
:
Zero point indication
7
:
“oz” or “viss” unit indication (set as needed),
or no unit indication
Net
:
Net weight indication
:
Low Power indication
1-5 Power Supply
Power Supply Selection
6V / 4.5Ah rechargeable battery Input 110VAC or 230VAC ±15% ; Output 10VDC/1A adaptor
Power Consumption
Approximately DC 14 mA (Indicator) Approximately DC 24 mA (Indicator + Display backlight)
Charging Voltage
DC 10V/1A output adaptor
(RS-232 and load cell cables size 3mm~5.5mm diameter to ensure correct sealing of the cable glands)
Power supply connector
Load cell cable entry
RS-232 cable entry
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Low Battery Warning
Please note when the ( ) symbol keeps flashing on the display, the internal battery should be recharged.
The scale will turn off automatically after a few hours when the low battery warning
symbol shows up. The scale must be fully charged, before operating again.
When the battery status indication is full, the power is about 6.1V; Each block is about
0.2V; When the battery warning symbol shows up, the power is about 5.4V.
1-6 Keypad Function
1OFF KEY
Press the
OFF
key to switch the indicator off.
ON|ZERO KEY
When the power is off, press
ON|ZERO
key to switch the indicator on.
When the power is on, press
ON|ZERO
key to return to zero.
Zero Range : OIML&NTEP is ±2% F.S., and Sri Lanka is ±3% F.S.
1TARE|PT KEY: Tare / Pre-tare key
To TARE: Place the container onto the scale, until the weight value is stable, press
TARE|PT
key for
zero return and the NET indication is shown on the display. Place the object onto the container and the display shows the net weight value of the object. Remove both object and container, and negative value of the container will show on the display. Press
TARE|PT
key again to clear “tare value”. The scale returns to zero and NET indication goes off.
Tare can be continuously done until tare value=full load capacity Continuous Tare  Press
TARE|PT
key for continuous weight increase/decrease on
platter.
If there is Tare, the pre-tare cannot be done. If there is pre-tare first, and the tare weight
more than pre-tare weight, Tare can be done.
No Tare can be done under gross weight display mode. To PRE-TARE:
Press
TARE|PT
key, use keypad to input pre-tare weight. When the cursor flashes on the
rightmost digit, press
TARE|PT
key again to complete.
Pre-tare mode, keypad function as followed:
ON|ZERO
upward key (0~9 digit entry)
NET|GROSS
move cursor leftward
UNIT
downward key (0~9 digit entry)
TARE|PT
move cursor rightward
UNIT
KEY
Press the
UNIT
key to switch weight units; the display icons will indicate the active units.
NET|GROSS
KEY
In the Tare mode, the screen displays the “
TARE
” icon; press the
NET|GROSS
key to switch
between the “Net value” and the “Gross value”. When the ”GROSS” arrow
shows up,
the Gross Weight in the screen = Tare weight + Net weight, meanwhile, keys except the
1
NET|GROSS
key, have no response.
1
M+|PRINT
KEY
Totalization function. M+/Print function is available when RS232 is on keypad transmission mode. ( output).
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Pcs
This key is a composite key, while totalization is shown and weight returns to net zero, press M+ key to erase memory. RS232 will output MC print format ( output). If there is new weight added on platterit is less than 20 divisions in Brazil version, no
accumulation , a new item will be added to totalization. If this weight is not taken off, nothing can be added to totalization.Display will show the totalization numbers for one
second, then show net weight for one second, then the scale returns to the current weight, and prints out the last item for totalization.
To clear totalization data, press M+ key to let display shows up totalization numbers,
then press the
M+|PRINT
key again, to clear totalization data. RS232 will print out
totalization numbers, total weight, etc.
P.s. Weight must return to net zero if to perform clear function.
F
KEY
Function key (In , select F key as MC or HR”)
Foot Switch Mode
This function is optional. Use to select TARE|PT key as ZERO or PRINT key If “PRINT” key is set ( = 10/11), all totalization data will be printed out, and
totalization will be cleared.
If it is Brazil version and foot switch is set as Print function, it has totalization function
and print function.
Simple Counting Mode
Use UNIT key to switch unit to Pcs, to go into simple counting mode.
1. Use
NET|GROSS
key to select a sample number from “10, 20, 50, 100, or 200”. Display
will show , , , , in an sequential order by pressing
NET|GROSS
key.
2. Select a sampling number, and put appropriate weight on platter, and press UNIT key.
Display will show “ ”. The scale will go into counting mode after weight is stable, and display will show the sample number.
Unit weight insufficient ( ): Sample unit weight is less than 0.2d or total sample
weight is less than 20d (d=division)
While sampling, if there is insufficient sample or unit weight insufficient indication “”,
the scale is still usable, but there may be slight inaccuracy.
After Power-off, the scale automatically memorizes the sampling number, and it is
available when Pcs unit is selected next time.
If the setting is “automatic average unit weight “, if the object on platter > the previous
sampling number more than 5 pcs, and also < less than 100% the previous sampling number, the scale will execute unit weight calibration automatically.
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1-7 Self-Test Mode
When power is off, hold
NET|GROSS
key and press ON|ZERO key, Wait till display shows
to enter “Self-Test Mode”.
INTERNAL VALUE MODE
(
must hook up full-bridge Load Cell to test)
Press
TARE|PT
key to enter, and the display shows internal value
Please check the internal value is within normal range is 0 ~ 400000 (no load) Check whether the backlight is on Press
ON|ZERO
key to back to the last screen, the display shows
KEYPAD TEST MODE
Press TARE|PT key to enter, display shows Keypad’s internal code: TARE|PT key = 06,
UNIT
key= 05, F key = 02
1
NET|GROSS
key=04
Press
ON|ZERO
key to back to the last screen , the display shows
FIRMWARE VERSION DISPLAY MODE
Press TARE|PT key to enter , display shows the firmware version , Press TARE|PT key again, the display shows maintenance number for 2 seconds Press
ON|ZERO
key to back to the last screen, display shows
BACK TO THE LAST SCREEN
Press TARE|PT key to exit self-test mode, the scale will re-power on automatically.
Press UNIT key
Press
ON|ZERO
key
Press UNIT key
Press UNIT key
Press UNIT key
Press
ON|ZERO
key
Press
ON|ZERO
key
Press
ON|ZERO
key
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1-8 Error Messages
 The EEPROM is not working correctly.
The EEPROM is not set yet, or the circuit on PCB is broken.
Zero is higher than the zero range when switching the indicator on. Zero is lower than the zero range when switching the indicator on. A/D value is unstable.
 The weight of the object is over 9 divisions of the maximum capacity . The weight of the object is under -1/6 maximum capacity.  ADIC value is over the maximum range.
The scale is not in level status.
(Only available with level detector equipped)
1-9 Weight Units
kg
1 g = 0.001 kg
g
1 g = 1 g
lb
1 g = 0.002204623 lb
lb/oz
1 g = 0.03527396 oz
oz
1 g = 0.03527396 oz
GN
1 g = 15.432358 GN
dwt
1 g = 0.6430149 dwt
ct
1 g = 5 ct
hk.tael
1 g = 0.02645546 Hk.catty
viss
1kg = 0.612245 viss
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Chapter 2 Configurations
Configuration Workflow
In the weighing mode, press
NET|GROSS
key and
ON|ZERO
key s at the same time to
enter the configuration mode. The LCD shows .
Overall workflow of the Advanced Function setting mode:
General Function Setting Mode  External Weight Calibration RS232 Bi-direction Function Setting Exit the Advanced Function Setting Mode
Refer to the following sections for the detailed operation procedures of each function setting.
Press UNIT key
Press
ON|ZERO
key
Press UNIT key
Press UNIT key
Press UNIT key
Press
ON|ZERO
key
Press
ON|ZERO
key
Press
ON|ZERO
key
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2-1 General Function Setting
Workflow of the General Function setting:
Press
TARE|PT
key
key in the parameter 00 ~ 13
Key in 00 and press
1
TARE|PT
key to return to the Advanced function setting menu
Return to the Advanced Function Setting Mode Menu Automatic Backlight Function Settings Automatic Power-off Timer Settings Hi/Lo/OK Settings Restore the Default Settings Noise Filter Settings Hold Function Settings Auto Unit Weight Averaging Setting Reserved Reserved Record Last Zero Foot switch on/off settings (Option) F key function settings Zero Setting
ON|ZERO
key Upward key (0~9 digit entry)
1
UNIT
key Downward key (0~9 digit entry)
1
TARE|PT
key Move cursor rightward
1
NET|GROSS
key Move cursor leftward
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2-1-1 Auto Backlight Function Setting
Select in the general function setting mode to change the backlight function setting.
LCD displays the last status Default setting = off
Press
TARE |PT
key
Use
ON|ZERO
or
UNIT
key
to select function on” or “off
Press
TARE|PT
key to go
back to the advanced function setting menu
On backlight function is on Off backlight function is off
Auto backlight function
When the weight is over 10d, the display backlight will be on. After the weight is stable for 10 seconds or when the scale returns to zero, the display
backlight switches off.
ON|ZERO
key Upward key (0~9 digit entry)
1
UNIT
key Downward key (0~9 digit entry)
1
TARE|PT
key Move cursor rightward
1
NET|GROSS
key Move cursor leftward
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