Adam Equipment HCB-J Jewellery Series User manual

© Adam Equipment Company 2012
Adam Equipment
HCB-J JEWELLERY SERIES
(P.N. 308660002 Revision A, June 2012)
So tware 3.7

1 © Adam Equipment Company 2012
CONTENTS
1.0 INTRODUCTION.......................................................................................................2
2.0 SET UP.....................................................................................................................2
2.1 UNPACKING AND SETTING UP YOUR BALANCE.............................................2
2.2 KEYPAD / DISPLAY FUNCTION ..........................................................................7
2.3 REAR PANEL........................................................................................................8
2.4 INTERNAL RECHARGEABLE BATTERY.............................................................8
3.0 LOCATING AND PROTECTING YOUR BALANCE..................................................9
4.0 BASIC OPERATION...............................................................................................10
4.1 TURNING ON THE BALANCE............................................................................10
4.2 ZEROING / TARE................................................................................................10
4.3 WEIGHING..........................................................................................................10
4.4 WEIGHING UNITS..............................................................................................10
5.0 DENSITY FUNCTION.............................................................................................11
5.1 WEIGHING A SAMPLE......................................................................................11
5.2 DISPLAY DENSITY.............................................................................................12
6.0 DENSITY PARAMETERS.......................................................................................14
6.1 LIQUID AND TEMPERATURE PARAMETERS .................................................14
6.2 ALLOY PARAMETERS.......................................................................................15
7.0 PARAMETERS .......................................................................................................16
7.1 ENABLING WEIGHING UNITS, F1 Unt ...............................................................17
7.2 HOLD FUNCTION, F2 Hld....................................................................................19
7.3 BACKLIGHT, F3 bL ..............................................................................................20
7.4 PRINTING PARAMETERS, F4 Ser ......................................................................20
7.5 AUTO POWER OFF, F5 OFF ................................................................................22
7.6 INTERNAL OR EXTERNAL CALIBRATION, F6 ICE .............................................22
7.7 ADJUST THE VALUE OF THE INTERNAL MASS, F7 CA .....................................23
7.8 USER TECHNICAL PARAMETERS, F8 SEt .........................................................24
8.0 USER CALIBRATION.............................................................................................25
9.0 SERIAL INTERFACE SPECIFICATIONS...............................................................27
10.0 REMOTE DISPLAY.................................................................................................29
11.0 TEMPERATURE SENSOR.....................................................................................29
12.0 TROUBLE SHOOTING...........................................................................................30
12.1 ERROR MESSAGES ..........................................................................................30
12.2 REPLACEMENT PARTS AND ACCESSORIES .................................................31
13.0 SPECIFICATIONS..................................................................................................32
13.1 TECHNICAL SPECIFICATIONS .........................................................................32
13.2 COMMON SPECIFICATIONS.............................................................................32
14.0 WARRANTY INFORMATION..................................................................................33

2 © Adam Equipment Company 2012
1.0 I TRODUCTIO
Thank you or purchasing your new HCB-J Jewellery balance. As with our popular
Highland
TM
series o balances the HCB-J has all the eatures you really need: DC
adapter with internal rechargeable battery, HandiCal
TM
calibration, backlit display,
and ShockProtect
TM
with overload indicator. With the RS-232 inter ace or
communication with printers and computers, splash-proo keypad, and sturdy
plastic construction, the HCB-J will be a balance you can rely upon. We hope that
you enjoy using your new balance.
2.0 SET UP
2.1 UNPACKING AND SETTING UP YOUR BALANCE
1) Remove the balance and all accessories rom the packaging

3 © Adam Equipment Company 2012
2) Remove the shipping protection screw and transit disc rom the top o the
balance
3) Place the Beaker Support assembly onto the top housing with the
Temperature Sensor cable running down the back o the balance.
4) Li t the beaker away to the rear and locate the Density Chamber support into
the receptacle with the arrow acing the rear o the balance. Press gently to
insert it then secure the support in the center using the M4 x 20mm screw
which is packed in the accessory bag. Tighten only enough to secure the pan
support so that it does not rock in the receptacle.

4 © Adam Equipment Company 2012
5) Replace the beaker onto the beaker support and pull the Temperature Sensor
cable through the clip to take up any slack or loose amount o cable.
6) Place the Density Chamber over the beaker with the handle o the lid at the
ront and allowing or the sample pan to hang reely inside it. Secure the
Chamber to the support by rotating it gently clockwise and locking into the 3
tabs. Take care not to push down or use excessive orce on the Chamber
when ixing as damage can be caused.

5 © Adam Equipment Company 2012
7) Plug the Temperature sensor into the 5 pin connector, and the remote
Indicator into the 6 pin connector at the rear o the balance.
8) Make sure again that the cable rom the Temperature Sensor is tightly pulled
down through the clip and that it does not inter ere or sit close to the Density
Chamber or Chamber support. I the cable is touching against any o these
parts it will result in incorrect weighing and karat calculations.
Position the balance and Remote Indicator in a convenient place and adjust the
eet to show a level state.
Switch on the balance whilst using battery power or connect the adaptor to the
mains supply.

6 © Adam Equipment Company 2012
When you are preparing to do a Density Test it will be necessary to ill the beaker
with liquid. The choice o which liquid will be le t or the user to decide, however
some solvents may not be compatible with the Polycarbonate o the beaker or
ABS o the Sample Pan. Test a small sample o the liquid on the plastics be ore
illing the beaker i unsure.
To ill the Beaker with liquid li t the Chamber lid, or unlock and remove the
Density Chamber rom it’s support and pour through a unneled container. The
beaker should be illed no higher than the maximum illing mark and needs to
cover the metal part o the Temperature Sensor cable. I the Chamber is
removed re it the Chamber once inished as described earlier. Care should be
taken to not spill any liquid onto or inside the balance as damage may occur
which is not covered under the normal warranty terms.
To ill the beaker whilst it is away rom the balance it will be necessary to remove
the Temperature Sensor and clip rom the beaker which then allows it to be
removed rom the support. The cable will need to be pulled gently upwards rom
below the Temperature Sensor clip to allow easy removal o the clip. When re-
itting the Temperature Sensor and clip ollow the previous instructions ensuring
the cable is pulled down into a tight position and li ted away rom the Chamber.
I water is used a ew drops o liquid detergent may be added to the water to
improve the wetting ability and avoid trapped bubbles o air on the sample being
tested.
Stir well to distribute the soap evenly.
When removing samples use a towel to dry the samples immediately so the
water does not splash onto the balance

7 © Adam Equipment Company 2012
2.2 KEYPAD / DISPLAY FUNCTION
The keypad and display have a number o eatures as shown and explained below:
KEYS PRIMARY FU CTIO SECO DARY FU CTIO
[On/Off]
To turn the balance On or O . ----
[Tare] Tares the balance and shows the net
weight value. Pressing the [Tare] again
will reset another tare value
A secondary unction o "Enter" is or
setting parameters or other unctions.
[Hold/Print] Will set the current weight to be held
on the display and will also send the
current weight data to the RS232
inter ace. When displaying the results
o the density test pressing
[Hold/Print] will send the results to
the inter ace.
When setting some parameters this key
will move the lashing digit to the right.
[Unit/Clr] Pressing this key will cycle through the
weighing units which are enabled
When in density mode pressing the
[Unit/Clr] will return the display to
normal weighing mode.
[Density] Pressing a ter the weight in the air and
in the liquid have been stored will
show the density and karat results.
Whilst setting parameters it will show
the previous option, or decrease the
value o the lashing digit.
[Air/Liquid] Stores the current weight into the
memory or density determination.
Whilst setting parameters it will show
the next option, or increase the value
o the lashing digit.
Zero
Stable
Capacity tracker
Weighing digits
Low battery indicator
Hold symbol
Alpha numeric display
Weight in Air
Weight in Liquid

8 © Adam Equipment Company 2012
2.3 REAR PANEL
The rear panel has connectors or the power, RS232, remote display and
temperature sensor. For connections to these see the relevant sections.
2.4 INTERNAL RECHARGEABLE BATTERY
The balance can be operated rom the internal rechargeable battery or using an
adapter. The battery li e is approximately 24 hours with the backlight o . Depending
on the usage o the backlight the li etime o the battery will reduce and using the
remote display will lessen the battery li e considerably.
The display will show an indication when the battery needs to be charged. To charge
the battery plug the adapter into the POWER socket at the back o the balance and
connect it to the mains power supply. The charging indicator at the le t top corner o
the LCD will be on to show it is charging and will turn green when the battery is ully
charged.

9 © Adam Equipment Company 2012
3.0 LOCATI G A D PROTECTI G YOUR BALA CE
In order to keep your balance unctioning at its best we suggest that you do the
ollowing:
Avoid extremes o temperature. Do not place in
direct sunlight or near air conditioning vents.
Make sure the balance is located on a strong table
and ree rom vibration.
Avoid unstable power sources. Do not use near large
users o electricity such as welding equipment or
large motors. Do not let the balance battery go lat.
I you are not using it or a long time you should
charge the battery periodically to make sure the
battery does not lose its charge.
Keep ree rom vibration. Do not place near heavy or
vibrating machinery.
Avoid high humidity that might cause condensation.
Keep away rom direct contact with water. Do not
spray or immerse the balance in water.
Do not place near open windows, air-conditioning
vents or ans that may cause a dra t and unstable
readings.
Keep the balance clean. Do not stack material on the
balance / balance pan when it is not in use.

10 © Adam Equipment Company 2012
4.0 BASIC OPERATIO
4.1 TURNING ON THE BALANCE
Plug in the unit using the adapter or use the internal rechargeable battery. It is
recommended that you charge the battery or at least 8 hours be ore irst use.
1) To turn on press the [On/Off] key once and release. The balance will show the
so tware revision and the battery voltage then sel -test be ore showing the
current temperature as measured or de ined by the user. The balance will
show the stable sign and zero weight on the display and is now ready to use.
2) To turn the balance o a ter use press the [On/Off] key again. There is an
auto power-o unction that will automatically turn the unit o i not used or
a period o time, this can be set in the parameters section.
4.2 ZEROING / TARE
You can press the [Tare] key to set a new zero point and show a zero reading. This
may be necessary i the weight reading is not indicating zero with nothing on the
pan. The zero indicator will show up in the upper le t corner o the LCD.
I you are using a container whilst weighing then you can place this on the weighing
pan and press the [Tare] key. Providing the container weight is more than 4% o the
maximum capacity o the balance the display will show a zero reading and NET will
light up on the display. You can then weigh your sample in the container. Taring a
container will reduce the maximum weighing capacity available o the balance.
4.3 WEIGHING
To determine the weight o a sample place the sample in the container. The display
will show the weight o the sample and the unit o weight currently in use. The
stable indicator will light up when the reading is stable.
4.4 WEIGHING UNITS
To change the weighing units press [Unit/Clr] which will cycle through the options o
units that are enabled. See Parameters 7.1 Enabling Weighing Units to enable or
disable the weighing units.

11 © Adam Equipment Company 2012
5.0 DE SITY FU CTIO
Once the HCB-J is prepared or a density test and the parameters have been set or
doing the Density Determination (see section 6) the ollowing procedure is used to
weigh the sample in air, and then again in water or another liquid, allowing you to
determine the density o the sample and i applicable a determination o the purity
(karat) o the gold in the sample.
The Hold unction must be enabled (see section 7.2) or the Density unction to
operate correctly. The Density parameters (see Section 6.0) should be checked
be ore doing a test as the results are dependent on the liquid and alloy settings.
5.1 WEIGHING A SAMPLE
Place the sample to be weighed in air on top o the lid o the Density Chamber and
allow the weight displayed to become stable. I the Hold unction is set to manual
press the [Hold/Print] key. The capacity tracker at the bottom o the display will
move rom right to le t and when ready the display will show “HOLD”. I the Hold
unction is set to automatic you are not required to press the [Hold/Print] key once
the weighing in air becomes stable.
A ter the Hold symbol is shown press the [Air/Liquid] key to store this value. Wait
or the Weight in Air indicator to be displayed be ore you proceed to the next step.
Remove the sample and ensure the balance returns to zero. I necessary press the
[Tare] key to zero the display.
Open the lid o the Density Chamber and care ully place the sample in the liquid on
the suspended pan. It may be help ul to shake the sample gently to dislodge any air
bubbles.
Close the lid o the Density chamber and allow the weight displayed to become
stable. I the Hold unction is set to manual press the [Hold/Print] key. The capacity
tracker at the bottom o the display will move rom right to le t and when ready the
display will show “HOLD”. I the Hold unction is set to automatic you are not
required to press the [Hold/Print] key once the weighing in liquid becomes stable.
A ter the Hold symbol is shown press the [Air/Liquid] key to store this value. The
Weight in Liquid indicator will be shown at which point the sample can be removed.

12 © Adam Equipment Company 2012
I when weighing in air the weighing unit starts to lash a message o “ADD”, this
in orms you that the weight o the sample may not be enough to give accurate
calculations and there ore it is recommended that a larger sample weight is used.
At this point the USER can add more weight to the lid until the lashing stops which
signi ies that the minimum sample weight required has been met.
Once the lashing stops remove the sample rom the lid o the chamber, press the
[Unit/Clr] key and make sure the display shows zero, place the sample back onto
the lid to start the process again.
Minimum sample weights are as ollows:
HCB J302 – 5g
HCB J1002 – 10g
HCB J2002 – 20g
* Please note that i extra weight is not added to meet the minimum sample weight
requirements when the message “ADD” is being displayed, the balance will continue
to calculate based on the sample weight at that time.
5.2 DISPLAY DENSITY
Press the [Density] key to display the density o the sample, ie- “14.2 den”
Press the [Density] key a second time to display the Karat value or the sample. For
example i gold with silver is selected the display would show “ 14 KAg ”. Like wise
or other display options the display might show “ 14 KCu ” or gold with copper, “ 14
K11 ” or gold with silver and copper in a 1:1 ratio, “ 14 KMn ” or a ratio other than 1:1
and “ 14 K o ” or other density o alloys that might be used. See section 6.2 or
details o setting the alloy options.
Press the [Density] key a third time to display the content o gold determined during
the test, ie- “583 Cnt”.
I the density value is outside o the expected range (see table opposite), the karat
value and content value will not be displayed. Only the density value will be
available.

13 © Adam Equipment Company 2012
To return to normal weighing press the [Unit/Clr] key. To run another test ensure
all weight is removed rom the pan support in the water and rom the Density
Chamber.
Density values used or Karat determination or silver and copper alloys.
GOLD
KARAT
Typical
CONTENT SILVER(Ag) COPPER(Cu) Ag:Cu=1:1
7K 292/1000 12.14(12.01-12.27) 10.60(10.46-10.73) 11.32(11.18-11.45)
8K 333/1000 12.42(12.28-12.55) 10.89(10.74-11.03) 11.60(11.46-11.74)
9K 375/1000 12.70(12.56-12.84) 11.19(11.04-11.34) 11.90(11.75-12.04)
10K 417/1000 13.00(12.85-13.14) 11.51(11.35-11.67) 12.21(12.05-12.36)
11K 458/1000 13.31(13.15-13.46) 11.85(11.68-12.02) 12.54(12.37-12.70)
12K 500/1000 13.64(13.47-13.80) 12.22(12.04-12.40) 12.89(12.71-13.06)
13K 542/1000 13.98(13.81-14.15) 12.61(12.41-12.80) 13.26(13.07-13.44)
14K 584/1000 14.34(14.16-14.52) 13.02(12.81-13.22) 13.65(13.45-13.84)
15K 625/1000 14.72(14.53-14.91) 13.46(13.23-13.68) 14.06(13.85-14.27)
16K 667/1000 15.12(14.92-15.32) 13.93(13.69-14.16) 14.50(14.28-14.72)
17K 708/1000 15.54(15.33-15.75) 14.43(14.17-14.69) 14.97(14.73-15.20)
18K 750/1000 15.99(15.76-16.21) 14.98(14.70-15.25) 15.47(15.21-15.72)
19K 792/1000 16.46(16.22-16.70) 15.56(15.26-15.86) 16.00(15.73-16.27)
20K 834/1000 16.97(16.71-17.22) 16.19(15.87-16.51) 16.57(16.28-16.86)
21K 875/1000 17.50(17.23-17.77) 16.88(16.52-17.23) 17.18(16.87-17.49)
22K 917/1000 18.07(17.78-18.36) 17.63(17.24-18.01) 17.84(17.50-18.18)
23K 958/1000 18.68(18.37-19.16) 18.44(18.02-19.09) 18.55(18.19-19.12)
24K 1000/1000 19.32(19.17-19.48) 19.32(19.10-19.54) 19.32(19.13-19.51)

14 © Adam Equipment Company 2012
6.0 DE SITY PARAMETERS
To use the density unction it is necessary to set parameters describing the liquid
used and the alloy being tested. These parameters can be set when the balance is in
the normal weighing mode.
During normal weighing with the display showing zero weight, press the [Density]
key. I the display does not change to show Liquid check the parameter or the Hold
Function (section 7.2). I it has been set to o “Hd O ”, density is disabled and this
section will not operate. Set to Hold On, “Hd On”, or Hold Automatic, “Hd AU”, to
enable the density unction.
The display will show Liquid to identi y the section or setting parameters associated
with the liquid used.
Press [Tare] to enter this section or press [Air/Liquid] to view the Alloy parameters.
When Alloy is displayed press [Tare] to enter this section or press [Air/Liquid] to
return to the Liquid parameters.
6.1 LI UID AND TEMPERATURE PARAMETERS
The parameters available are water (H2O) and any other user de inable liquid. I
water is used and selected the next parameter will ask to determine the
temperature o the water, selections are either using the automatic temperature
sensor or to manually input the temperature.
I another liquid is used then the user must set the density o that liquid.
The display will show Liquid, Press [Tare] to enter this section.
Press [Air/Liquid] or [Density] to select H2O or De ine den. Press [Tare] to select the
setting or press [Unit/Clr] to return to the Liquid display.
I H2O is selected the display will show the current setting or the temperature
determination, either Auto tmp, or Set tmp.
Press [Air/Liquid] or [Density] to select the option, then press [Tare] to store the
selection.

15 © Adam Equipment Company 2012
I Auto tmp is selected the display will show the current temperature measured by
the external temperature probe. Press [Tare] to accept the value and return to
Liquid.
I Set tmp was selected the display will show the temperature last set by the user i.e.
24 °C tmp . To change the current setting press the [Air/Liquid] or [Density] key to
increase or decrease the value. Press [Tare] when the correct value is shown.
The display will return to show Liquid. Press [Unit/Clr] to return to weighing or press
[air/Liquid] or [Density] to change the display to set the Alloy parameters.
I De ine den was selected or setting the density o another liquid press [Tare] and
the display will show the current valued stored. Enter the value or the density o
the liquid you are using (in g/cc
3
) by using the [air/Liquid] or [Density] keys to
change the value o the lashing digit on the display, and the [Hold/Print] key to
change the lashing digit position. Press [Tare] when the correct value is shown.
The display will return to show Liquid. Press [Unit/Clr] to return to weighing or press
[air/Liquid] or [Density] to change the display to set the Alloy parameters.
6.2 ALLOY PARAMETERS
The balance will compute the density based on the mass and weight values
recorded. The value or purity (karats) and content will be computed depending on
the alloy selected by the user. The alloy options are Silver (Ag), Copper (Cu), Silver:
Copper in a 1:1 ratio (AG:CU 1-1), Silver: Copper in a user settable ratio (Ag:Cu: M-N) or
a user de ined density (De ine den).
When the display shows Alloy, press the [Tare] key to enter this section.
The display will show the current setting or the alloy as above.
Press the [air/Liquid] or [Density] key to change the display to another setting, then
press [Tare] to select the setting.
When the sample is gold mixed with an alloy the user needs to select the option that
describes the alloy used. I the alloy is Silver (Ag), Copper (Cu) or Silver plus Copper
in a 1:1 ratio (AG:CU 1-1) select the option shown and press [Tare] to store the
selection. The display will return to show Alloy. Press [Unit/Clr] to return to
weighing or select the Liquid setting as above.

16 © Adam Equipment Company 2012
I the alloys are in another known ratio o Silver to Copper (Ag:Cu: M-N), or the alloy
is another metal o known density (De ine den) then ollowing pressing [Tare] the
display will show the current value stored or each option. To set the ratio or density
use the [Air/Liquid] or [Density] keys to change the lashing digit, and the
[Hold/Print] key to move the lashing digit to the right. Once the value is set, press
the [Tare] key to store the value. The display will return to show Alloy. Press
[Unit/Clr] to return to weighing whereupon you are now ready to proceed as
section 5 to per orm density testing.
7.0 PARAMETERS
The balance has 8 parameters that can be set by the user.
FU CTIO SECTIO DESCRIPTIO
F1 Unt
See section 7.1 Sets the units to be used
g, ct, GN, dwt, oZt, Oz, Lb, MM, t, tLH, tLS, tLT, tLJ
F2 HLd
See section 7.2 Sets the operation o the Hold unction
On HD: Manual hold the weight whit the [Hold/Print] key
Auto HD: Weight held automatically when stable
OFF HD: Hold unction O , Density unction disabled
F3 bL
See section 7.3 Sets the backlight
on BL : backlight always on
AU BL : backlight automatically turns on when a weight is
placed on the pan or a key is pressed
oFF BL: backlight always o
F4 SEr
See section 7.4 Sets the print parameters
F5 OFF
See section 7.5 Sets the auto power-o parameter
F6 ICE
See section 7.6 Selects Internal or external calibration mode
F7 CA
See section 7.7 Calibration mass value ine adjustment
F8 SEt
See section 7.8 User Parameters or auto zero, ilter and stability
tECH
Technical parameters setting mode / actory setting

17 © Adam Equipment Company 2012
7.1 ENABLING WEIGHING UNITS, F1
F1F1
F1 U
UU
U N
NN
NT
TT
T
You can enable and disable the weighing units available to the user when they press
the [Unit/Clr] key as described in section 4.4 Weighing Units.
1) Switch on the balance then press and hold the [Unit/Clr] key during the sel -
checking test o the display.
2) A ter a ew seconds, the display will show the irst unction F1 Unt.
3) When F1 Unt is displayed you can press the [Unit/Clr] key to return to normal
weighing or press [Air/Liquid] to go to the next unction.
4) When F1 Unt is displayed you can press the [Tare] key to view the current
setting or the weighing units.
5) Press [Unit/Clr] at any time to return to the parameter heading.
6) Pressing the [Hold/Print] key will cycle through the other units along with
their current settings. For example, i oFF is displayed with the weighing unit
Carats, the user will not be able to use this unit while weighing.
7) Pressing the [Air/Liquid] key will change the setting o a particular unit. For
example, to enable the weighing unit Carats, change the setting to on by
pressing the [Air/Liquid] key.
8) Note that grams will always be enabled.

18 © Adam Equipment Company 2012
The ollowing table shows di erent units which are available to the user and the
conversion actors or each.
ame of the
Units
Description Conversion
Factor
Display
Symbol
Grams A standard metric unit 1.0 g
Carats Used or weighing jewelry and gems, etc. 5.0 ct
Grains A basic weighing unit in the imperial
system. Used to weigh gun powder.
15.43236 GN
Pennyweight Pennyweight was the weight o a silver
penny in medieval England. Equals to 1/20
th
o an Ounce Troy.
0.6430149 dwt
Ounce Troy Troy ounce- used or weighing gold, silver
and in pharmacy.
0.03215075 oZt
Ounce Avoirdupois ounce.
16 ounces make a pound.
0.035274 oZ
Pounds Standard weighing unit in UK/USA. 0.0022046 Lb
Mommes A weighing unit used in Japan to weigh
pearls.
0.266667 MM
Tola An Asian weighing unit 0.085735 t
Taels Hk Hong Kong Taels 0.026717 tL H
Taels S Singapore Taels 0.026455 tL S
Taels T Taiwan Taels 0.026667 tL T
Taels J Japan Taels 0.026659 tL J
A ter setting the units to on or o , press [Unit/Clr] or [Tare] to return to the
unction menu.

19 © Adam Equipment Company 2012
7.2 HOLD FUNCTION, F2
F2F2
F2 H
HH
H L
LL
LD
DD
D
The hold unction may be set to automatic, manual or o by the user. I the hold
unction is disabled the density unction will not work. I it is set to auto the balance
will hold the weight display when it becomes stable. I it is set to manual the user
must press the [Hold/Print] key to set the hold unction.
AU Hd
Sets the hold unction to operate automatically when a weight is
stable.
O Hd
Sets the hold unction to o . The Density unction will not
operate. The [Hold/Print] key will unction only as a print key.
On Hd
Sets the hold unction to be on when the user presses the
[Hold/Print] key.
1) Switch on the balance then press and hold the [Unit/Clr] key during the sel -
checking test o the display.
2) A ter a ew seconds, the display will show the irst unction F1 UNT.
3) Press the [Air/Liquid] key to select F2 Hld .
4) Press the [Tare] key to view the current setting or the hold unction.
5) To change the setting press the [Air/Liquid] key to scroll through and select a
new setting as shown above.
6) Press [Tare] to con irm and move to the next setting.
7) When F3 bL is displayed press the [Tare] key to enter the parameter, the
[Unit/Clr] key to return to weighing, or press [Air/Liquid] to go to the next
unction.