Adam Equipment pgw series User manual

Adam Equipment
PGW SERIES
(P.N. 8080, Revision E4, September 2007)
Software rev.: 2.43 & above
© Adam Equipment Company 2007

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© Adam Equipment Company 2007

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TABLE OF CONTENTS
1.0 KNOW YOUR BALANCE ..........................................................................................5
2.0 SPECIFICATIONS .....................................................................................................6
3.0 UNPACKING THE BALANCE ....................................................................................7
4.0 LOCATING THE BALANCE .......................................................................................7
5.0 SETTING UP THE BALANCE ...................................................................................8
5.1 ASSEMBLING THE BALANCE .............................................................................8
5.2 LEVELLING THE BALANCE.................................................................................8
5.3 WARM-UP TIME ...................................................................................................8
6.0 DISPLAY ...................................................................................................................9
7.0 KEYPAD ..................................................................................................................11
7.1 NUMERIC ENTRY METHOD..............................................................................11
8.0 INPUT/OUTPUT ......................................................................................................12
9.0 OPERATIONS .........................................................................................................13
9.1 INITIALISATION..................................................................................................13
9.2 PASSCODES......................................................................................................13
9.3 WEIGHING..........................................................................................................14
9.3.1 Weighing Units.............................................................................................14
9.4 FUNCTIONS........................................................................................................15
9.4.1 Parts Counting..............................................................................................16
9.4.2 Percent Weighing.........................................................................................17
9.4.3 Check Weighing...........................................................................................18
9.4.4 Animal / Dynamic Weighing..........................................................................19
9.4.5 Net/Total.......................................................................................................22
9.4.6 Density Determination..................................................................................22
10.0 CALIBRATION .......................................................................................................25
10.1 MANUAL CALIBRATION.....................................................................................25
10.1.1 Calibration using Internal Calibration mass..................................................25
10.1.2 Calibration using External Calibration mass.................................................25
10.2 AUTOMATIC CALIBRATION...............................................................................26
10.3 CALIBRATION ERRORS ....................................................................................26
11.0 RS-232 INTERFACE .............................................................................................27
12.0 ERROR CHECKING ..............................................................................................30
13.0 SUPERVISOR MENUS .........................................................................................31
13.1 ENABLE WEIGHING UNITS...............................................................................31
© Adam Equipment Company 2007

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13.2 ENABLE WEIGHING MODES.............................................................................31
13.3 ENABLE SERIAL INTERFACE PARAMETERS..................................................32
13.4 SETUP PARAMETERS.......................................................................................33
13.5 CALIBRATION SETUP........................................................................................35
13.5.1 INTERNAL CALIBRATION MASS ADJUSTMENT.......................................35
13.6 PASSCODES......................................................................................................36
13.6.1 Forgotten Passcodes ...................................................................................37
14.0 PERIPHERALS .....................................................................................................37
14.1 DENSITY DETERMINATION KIT........................................................................37
14.2 ANTI-VIBRATION TABLE ...................................................................................37
14.3 ADAM PRINTERS...............................................................................................37
15.0 SAFETY AND MAINTENANCE .............................................................................38
16.0 TROUBLE-SHOOTING .........................................................................................38
17.0 REPLACEMENT PARTS AND ACCESSORIES ....................................................42
18.0 SERVICE INFORMATION .....................................................................................42
19.0 BALANCE MENU STRUCTURE ...........................................................................43
© Adam Equipment Company 2007

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1.0 KNOW YOUR BALANCE
Thank you for selecting the PGW Balance.
This Instruction Manual will familiarise you with the installation, accessories,
trouble-shooting, after sales service information, general maintenance of the
balance, etc. and will guide you through the various applications.
Please read this Manual thoroughly before starting the operation. If you need
any clarifications, feel free to contact your supplier or Adam Equipment.
PRODUCT OVERVIEW
The PGW balances are ideal for laboratory and general purpose weighing.
The balances can also be used for some advanced weighing functions.
PGW series
FEATURES:
•Large easy to read LCD display with
backlight
•Standard applications include weighing,
check weighing, percentage weighing,
parts counting, animal / dynamic
weighing, net / total and density
determination
•Internal Calibration using motorised
internal calibration weight
•External calibration models available
•Bi-directional RS-232 interface
•Can be configured to print a GLP
Compliant report after each calibration to
include the time, date, balance number
and a verification of the calibration
•Automatic temperature compensation
•Display in 4 languages- English, French, German and Spanish
•18 weighing units
•Capacity tracker
•Date and time
•Easy to use, sealed keypad
•Below balance weighing facility
•Password protection
•Security locking point
•Robust metal casing
© Adam Equipment Company 2007

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2.0 SPECIFICATIONS
Model* PGW
153e PGW 253e PGW 453e PGW 753e PGW 1502e PGW 2502e PGW 3502e PGW 4502e
Maximum
capacity 150g 250g 450g 750g 1500g 2500g 3500g 4500g
Readability 0.001g 0.01g
Tare range Full
Repeatability
(S.D.) 0.001g 0.01g
Linearity (±) 0.002g 0.02g
Units of
measure grams, milligrams (for 0.001g units only), kilograms, carats, pennyweights, grains, troy ounce, ounces, pounds, drams, taels (Hong Kong, Taiwan
and Singapore), mommes, tolas, ticals, Newtons and Custom
Interface RS-232 bi-directional
Operating
temperature 10°C - 40°C
Power supply Output voltage 15 VDC, 800 mA through
External Power Supply Module- supplied as standard
(Input Voltage 100–240 V, 50/60 Hz)
Calibration Internal or External,
Selectable Automatic Calibration due to change in time or temperature
External
calibration
mass
100 g 200 g 500 g 1000 g 2000 g
Display Backlit LCD with dual digits (24 mm high) and capacity tracker
Draught shield Supplied as standard Not applicable
Housing Die cast aluminium housing
(glass weighing chamber for models with 1mg readability)
Pan size 140×140mm 192×192mm
Overall
dimensions
(w x d x h)
251 × 358 × 104 mm
Net weight 5.5 kg
Applications Weighing, Check weighing, Percentage weighing, Parts counting,
Animal / dynamic weighing, Net / total and Density determination
*The same models are available with motorised internal calibration as series denoted with ‘i’
© Adam Equipment Company 2007

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3.0 UNPACKING THE BALANCE
Remove the balance from the packing by carefully lifting it out of the box.
Inside the box you will find everything needed to start using the balance-
9AC adapter
9Four rubber pan supports
9Stainless Steel Top Pan
9Draught shield (for mg models only)
9This User Manual
4.0 LOCATING THE BALANCE
•The balance should not be placed in a
location that will reduce the accuracy.
•Avoid extremes of temperature. Do not place
in direct sunlight or near air conditioning
vents.
•Avoid unsuitable tables. The table or floor
must be rigid and not vibrate.
•Avoid unstable power sources. Do not use
near large users of electricity such as welding
equipment or large motors.
•Do not place near vibrating machinery.
•Avoid high humidity that might cause
condensation. Avoid direct contact with water.
Do not spray or immerse the balances in
water.
•Avoid air movement such as from fans or
opening doors. Do not place near open
windows or air-conditioning vents.
•Keep the balance clean. Do not stack material
on the balances when they are not in use.
© Adam Equipment Company 2007

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5.0 SETTING UP THE BALANCE
Screws
with nuts
5.1 ASSEMBLING THE BALANCE
•Locate the balance on a solid surface, free from vibration
•For PGWi models, tilt the balance
on it’s side and remove the two
shipping screws and nuts before
use. If you need to ship the
balance, replace the screws but do
not over-tighten which may damage
the internal mechanisms
•Gently place the 4 pan supports (if not already fitted) and then the
stainless steel pan on the weighing platform
•Place the draught shield frame and the top cover around the pan (for
mg models only)
•Level the balance using the adjustable feet and spirit level
•Connect power to the balance
•For best performance, let the balance warm up for 30-60 minutes and
calibrate before using
Label
5.2 LEVELLING THE BALANCE
After placing the balance in a suitable place,
level it by using the spirit level on the rear of the
balance. To level the balance turn the two
adjustable feet at the rear of the balance until
the bubble in the spirit level is centred.
5.3 WARM-UP TIME
Attach the power supply cable to the connector
on the rear of the balance. Plug the power
supply module into the mains. The display will
indicate the balance serial number (if set) and
the software revision number followed by the
capacity of the balance. Next the balance will
run a self-test by displaying all segments
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followed by a symbol indicating the balance is in
busy mode. If the balance serial number is not
set the display will show dashes. The display
will show zeroes accompanied by the Î0Í
symbol. If the balance is not used for a long
time, it will go back to the auto-calibration mode.
Before you start weighing, you have to wait for the balance to achieve a
stable internal temperature. Typical initial warm-up time suggested for a
balance already at room temperature is about 1 hour.
A stable sign ~ is shown when the balance is in
stable condition. It will turn off if the balance is
not stable.
Exact zero is shown when the “Î0Í“ symbol is
on to the left of the display area.
6.0 DISPLAY
The LCD has several areas-
- A large 7 digit area to display the weight with symbols for
common weighing units on its right and symbols for zero, tare
(Net) and stability on the left.
- A 10 digit area which allows a large amount of flexibility for
displaying text messages concerning menus, operation and
errors, for example to display the current weighing mode or to
guide the user through processes such as density
determination
- A percentage indicator known as capacity tracker which is a
0-100% bar graph consisting 10 large segments for indicating
the percentage of the total balance capacity used and arrows
for check weighing.
© Adam Equipment Company 2007

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SYMBOLS AND TEXT
The LCD has unique symbols to indicate the following:
Î0Í
Zero
Busy
Stable
A bar graph with set point markers
g, mg, kg, ct, dwt, GN, ozt, oz,
lb, dr, tl H, tl T, tl S, MM, T, ti, N,
Custom, g/cc, Pcs, %, M, and S
Symbols shown for the units
INDICATORS
“CAL” When calibration is occurring or about to occur
“ºC” When a temperature is shown or a temperature driven
calibration is to occur
“ti” For a time driven calibration
“Net” When a net weight is shown
“PARTS” When the balance is in the Parts counting mode
“PERCENT” When the balance is in the Percent weighing mode
“NT” When the balance is in the Net/ Total mode
“0%”, “100%” When the capacity tracker is showing percent of maximum
range used
© Adam Equipment Company 2007

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7.0 KEYPAD
The keypad has the following keys to operate the balance.
Keys Primary function Secondary function
To turn the balance to ON or
Standby -
[Î0/TÍ] or
[Esc] A combined zero and tare function To escape from setup functions and modes
[Unit] / Ðor
[Down] Selects weighing units by cycling through a set of
enabled units
To decrement or change a
displayed value or scroll
through options backwards
[Mode] / Îor
[Advance] Enters the Mode Selection Menu To advance a flashing digit by one position to the right.
To go back by one step
during setup functions
[Print] / Íor
[Back] Instructs the balance to print data To advance a flashing digit by one position to the left
[Cal] / or Ï
[Up]
Starts the calibration function
To increase or change a displayed value or scroll
through options forward
[Setup]/
or [Enter] Enters the Setup parameters (Supervisor Menus) Enters a function or saves a value while manually
manually entering unit
weight or check weighing
limits
7.1 NUMERIC ENTRY METHOD
To set a value when required, use the keys as given below-
- [Up] and [Down] keys to increase or decrease the flashing digit,
- [Advance] and [Back] keys to advance or move back the digit and
- [Enter] key to accept the value
© Adam Equipment Company 2007

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8.0 INPUT/OUTPUT
The rear panel has connectors for RS-232 serial and a power
input socket. Required power input is a low-voltage external
supply, 15VDC @ 800mA.
© Adam Equipment Company 2007

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9.0 OPERATIONS
9.1 INITIALISATION
When the balance is first switched on, it
will display the balance serial number (if
set), software revision, model capacity
and then all segments on the display will
be shown. Overall the time taken is
usually 5 -10 seconds.
If an operator passcode has been set, the display will show “PASSCODE” and
the main display will show a zero. In this case you must enter the passcode
to continue using the numeric entry method (see section 7.1). A different
passcode may be set for a Supervisor to weigh or to have access to the
selected User menus. If the passcode has not been set the balance will
continue as below.
The display will show zero reading along
with the zero symbol “Î0Í”and the
weighing unit last used. If automatic
time calibration is enabled the balance
will calibrate 15 minutes after power up
or again after the pre-set time interval.
9.2 PASSCODES
If a passcode has been set to limit access to the weighing functions of the
balance the display will show “PASSCODES” with the main digit set to zero.
Use the numeric entry method (see section 7.1) to enter the code. The
display will change to show 7 digits set to zero with the rightmost digit
flashing. Make sure to enter the correct passcode to continue. See the
Section 13.6 for details.
© Adam Equipment Company 2007

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9.3 WEIGHING
•Press [Î0/TÍ] to zero the balance, if required
•“Î0Í“ will be displayed
•Place a mass on the pan and the weight will be displayed
•If a container is used press [Î0/TÍ] to tare the balance when the
balance symbol “~” is on. “Net” will be displayed to indicate that the
balance is tared
•When the display shows zero, place the item to be weighed. Only the
net weight will be displayed. The capacity tracker at the bottom of the
LCD will indicate the weight graphically with respect to the maximum
weighing capacity
•At any time the [Unit] key may be pressed to select another unit. Use
the [Up] or [Down] key to scroll through the units and select the desired
unit by pressing [Enter], the display will change to show the weight in
the selected weighing unit. The available weighing units can be enabled
or disabled by the user (see section 13.1). Only weighing units that
have been enabled will be cycled through when [Unit] is pressed
9.3.1 Weighing Units
You can select alternative weighing units to display the weight by pressing
the [Unit] key. The available weighing units are:
Unit Symbol Models Conversion Factor
1g = Conversion Factor 1 unit = grams
1 GRAMS g All 1 1.0
2 MILLIGRAMS mg not 0.01g units 1000 0.001
3 KILOGRAMS kg All 0.001 1000
4 CARATS ct All 5 0.2000
5 PENNYWEIGHTS dwt All 0.643014865 1.555174
6 GRAINS GN All 15.43236 0.0647989
7 TROY OUNCES ozt All 0.032150747 31.103476
8 OUNCES oz All 0.035273962 28.349523
9 POUNDS lb All 0.0022046 453.5924
10 DRAMS dr All 0.564383422 1.7718451
11 HK TAELS tl H All 0.026717251 37.42900
12 TAIWAN TAELS tl T All 0.026666702 37.49995
13 SING TAELS tl S All 0.026455464 37.799375
14 MOMMES mm All 0.266666951 3.749996
15 TOLAS T All 0.085735323 11.663804
16 TICAL ti All 0.0612395 16.32933
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17 NEWTONS N All 0.00980665 101.971623
18 CUSTOM Custom All As specified As specified
It is possible to set the balance to display only grams. Grams will always be
one of the units enabled, by default.
If “CUSTOM” unit is selected, the balance will prompt for entering a multiplier
by displaying “MULTIPLIER XX,XXX”, where “XX,XXX” is the last stored
value. Any value ranging from 0.100 to 10.000 may be entered, by which the
weight in grams will be multiplied before being displayed. If a multiplier of
greater than 1.000 is entered, the number of decimal places displayed will be
reduced by one. This multiplier value will be saved for the next use till it is
changed by the user.
The balance displays the alternate weighing units with as much precision as
possible. For example, the 450g x 0.001g balance could weigh up to:
Unit Maximum d =
g. 450g 0.001g
mg 450000 1
kg 0.450000 0.000001
ct. 2250 0.005
dwt 289.356 0.001
GN 6944.52 0.02
ozt 14.86780 0.00005
oz 15.87325 0.00005
lb 0.99207 0.00001
dr 253.972 0.001
tl.T 12.00000 0.00005
tl.H 12.02275 0.00005
tl.S 11.90415 0.00005
MM 119.9995 0.0005
T 38.5808 0.0001
ti 27.5577 0.0001
N 4.4130 0.0001
9.4 FUNCTIONS
When weighing, the user can access the applications that have been enabled
(see section 13.2).
The following applications are available in this version (2.41):
•Weighing
•Parts counting
•Percent weighing
•Check weighing
•Animal / dynamic weighing
•Net/Total
•Density determination
The selectable functions can be enabled using a similar method to the Units
above by turning the functions on or off.
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9.4.1 Parts Counting
This allows the user to weigh a sample of parts to compute an average unit
weight and then determine the number of items being weighed by dividing the
net weight by the unit weight value. The result is always a whole number of
parts.
The balance will have a preset number of parts to be used as a sample.
These values are 10, 25, 50 or 100 items.
Steps:
•Press [Mode] to show parts counting, “PARTS” will be displayed
•Enter parts counting by pressing [Enter]
•Press the [Up] or [Down] key to select the sample size, “REF QTY”,
10, 25, 50, 100, etc., then press [Enter] to confirm
•When “LOAD XX Pcs” is shown place XX number of items on the pan
and press [Enter] to compute the average piece weight. Display will
indicate the total weight in the last selected unit and then show “XX
Pcs” sounding a beep. A message “PARTS” will be prompted on the top
of the display to indicate that the balance is in the parts counting mode
•Remove the sample and display will show “0 Pcs”.
•Place an unknown quantity on the pan. The balance will then compute
the number of parts based on the average piece weight. The display will
show the result in Pcs
•To count another item press [Mode] and continue as before
•Checks will be made to determine that the weight of the reference parts
is large enough for reasonably accurate counting (weight of each piece
must be > 1d)
•To return to normal weighing, press [Esc]
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9.4.2 Percent Weighing
Percent weighing will be done by defining a certain weight to be 100%. The
weight to be used can either be entered by the user or taken from a sample
•Press [Mode] and then the [Up] or [Down] key to select Percent
weighing, “PERCENT” will be displayed
•Press [Enter] to enter the function
•Display will show, “PERCENT SAMPLE”
•Press [Enter] to select the sample method or scroll to manually enter
the sample weight as given below
•When “LOAD 100 %“ is shown, add the sample
•Press [Enter] to set this weight to be 100%. The display will show “REF
WT” and the sample weight in the last selected unit. After a while
“100%” will be displayed. A message “PERCENT” will be prompted on
the top of the display to indicate that the balance is in the percent
weighing mode
•Remove the sample and “PERCENT 0.00%” will be displayed
•Place an unknown sample to display the percentage weight
•To set another weight as 100%, press [Mode] and continue as before
•To manually enter a value to be set as 100%, press [Up] or [Down] key
when “PERCENT SAMPLE” is shown to select “PERCENT Ent Wt”
•Press [Enter]. Display will show the value in the unit last used in the
weighing mode
•Enter the weight using the numeric entry method (see section 7.1).
•Place unknown sample to display the percentage weight
•To perform percent weighing with another sample press [Mode] and
continue as before
•To return to normal weighing, press [Esc]
NOTE: Percentage will be initially displayed to the maximum number of
decimal places based on the resolution of the balance. To increase or
decrease by one decimal place, press the [Up] or [Down] key respectively.
© Adam Equipment Company 2007

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9.4.3 Check Weighing
During weighing of a sample the balance can be set to show if the weight is
above or below an upper and a lower limit. The display will use the arrows
under the bar graph to show that check weighing is operating. The bars
between the arrows will indicate when the weight is below the lower limit,
between the limits or above the upper limit.
The buzzer can be set to be active when the weight is outside the limits
(below the lower or above the upper) or within the limits (above the lower and
below the upper limit), or turned off. If desired, only one limit needs to be set.
If only one limit is set the other limit is considered to be zero (lower) or the
maximum (upper).
The Check weighing is not active when the weight is less than 20d. This is
the minimum weight at which the indicator bars are displayed and the buzzer
sounds, if it is not set to OFF (see the next page).
Steps:
•Press [Mode] and then the [Up] or [Down] key to select Check
Weighing. When “CHECK” is displayed press the [Enter] key to enter
Check Weighing mode
•Press [Up] or [Down] to set the “LOW LIMIT” to “On” or “OFF”
•Press [Enter] to proceed. If the “LOW LIMIT” was set to “On” the
display will show the current low limit in the unit last used in the
weighing mode. You may change the limit using the numeric entry
method (see section 7.1).
•Press [Enter] to proceed
•If the “LOW LIMIT” was set to “OFF” or the setting of the low limit is
complete, then the display will change to “HIGH LIMIT”. Use [Up] and
[Down] to set the “HIGH LIMIT” to “On” or “OFF”
•Press [Enter] to proceed
•If the “HIGH LIMIT” was set to “On”, the display will show the current
high limit in the last selected unit which can be changed in the same
way as in case of “LOW LIMIT”
•Press [Enter] to proceed
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•Next the beeper setting is displayed. Press [Up] or [Down] to scroll
through the options –
“BUZZER OFF” (Beeper set to off at all times)
“BUZZER In” (Beeper will sound when the weight on the pan is
stable and within the limit)
“BUZZER Out” (Beeper will sound when the weight on the pan is
stable and outside the set limits)
•Confirm the beeper setting by pressing [Enter]
•When a weight is placed on the pan now, the display will indicate
whether the weight is below the LOW LIMIT between the LOW and
HIGH LIMITS or higher than the HIGH LIMIT using the capacity tracker,
•To perform check weighing with another sample press [Mode] and
continue as before
•To return to normal weighing, press [Enter]
9.4.4 Animal / Dynamic Weighing
The balance can be set to weigh animals or moving items, also known as
dynamic weighing. The balance will collect the weight over a period of time to
arrive at an average value and display the value until the operator resets the
balance. The actual weighing process can begin either automatically when
the weight is placed on the pan or when initiated by the operator. The
weighing unit can be selected as normal using the [Unit] and [Enter] keys,
before entering the Animal / Dynamic Weighing process.
Steps:
•Press [Mode] and then the [Up] or [Down] key to select Animal /
Dynamic Weighing. When “ANIMAL” is displayed press [Enter] to enter
Animal Weighing mode
•Press [Up] or [Down] to select “rUN” for starting the animal / dynamic
weighing using the method previously set or “SEtUP” to set up the
balance for animal weighing (see the section 9.4.4.1 Animal Weighing
Setup Parameters)
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MANUAL MODE
When the balance is in the MANUAL mode –
If [Enter] is pressed when “rUN” is selected, balance will display “START ?”
Place the item on the pan and press [Enter] again
After the configured Delay and test time are computed by the balance, the
result will be displayed by showing “FINISHED xx.xx x” after a pre-set time
Delay and Sampling period (see the section 9.4.4.1 Animal Weighing Setup
Parameters)
AUTO MODE
When the balance is in the AUTO mode –
If [Enter] is pressed when “rUN” is selected, balance will display “LOAD PAN”
Place the item on the pan. The animal weighing test will begin automatically
After the configured Delay and test time are computed by the balance, the
result will be shown displaying “FINISHED xx.xx x” (see the section 9.4.4.1 on
Animal Weighing Set-Up Parameters)
•During animal weighing if the [Print] key is pressed, the balance will
display “PAUSED” and show the current average weight
•To resume, press [Print] again or
•Pressing [Mode] will display “STOPPED” and terminate the weighing
•Remove the item from the pan
•Press [Mode] to go back to “ANIMAL rUN” to weigh another item or
[Esc] to return to normal weighing
9.4.4.1 Animal Weighing Setup Parameters
•Press [Mode] and then [Up] or [Down] to select Animal Weighing.
When “ANIMAL” is displayed press [Enter] to enter the function
© Adam Equipment Company 2007