Gram FR 320 Manuale utente
SERIES
FR
320 / 500 / 3200 / 5000
OPERATION MANUAL
2
INDEX English
Safety information 4
Installation 4
Preparatory before using 5
Storage 5
Unfolding the package 5
Package list 6
Installation of the balance 6
Install the balance with wind shield 6
Install the balance with round weighing pan 7
Install the balance with square weighing pan 7
Connect the Power Adapter 7
Install the External Facilities 7
Warm-up Time 8
Adjust the Level Gauge Purpose 8
Display and keys description 8
Keys description 10
Calibration 10
Basic weighing 11
Counting mode 11
Percent deviation 12
Limits function 13
Set up no warning value without loading 15
Activate the limits mode 15
To exit the limits mode 16
User setups 17
Print setups 19
Setting the baud rate 20
Enabling weighing units 21
3
Restoring the factory default setup 21
Backlight setup 22
Limits setup 22
No warning setup 23
Enabling the limit setup 24
Checking the high and low weight limits 24
Additional functions 25
Communication with a computer 25
RS-232 Interface hardware 27
Pin description 27
Routine maintenance and troubleshooting 28
Troubleshooting 28
Clearance 28
Clearing the stainless steel surface 28
Safety check 29
Troubleshooting 29
Technical conditions 31
Technical parameters 31
Guarantee 32
4
ENGLISH
SAFETY INFORMATION
• To avoid unnecessary demage to the balance, please pay attention to the
following tips.
• Please do not use this balance in dangerous área.
• Only the trained technicians could operate this balance.
• Please turn off the power of the balance before connect it or disconnect it with
other facilities.
• If the environment requires a higher safety standard, please follow the relevant
installation instructions.
• Excessive electromagnetic interference will make the displayed value in this
balance change. Once the interference is dismissed, the balance could operate
in normal way.
• Please avoid any liquid on the surface of the balance. A piece of lightly damp
cloth is allowed to wipe the balance.
INSTALLATION
• Please make sure the local voltage is in line with the rated voltage on the
name board.
• Please pay special attention when use RS-232 as the pins location might
be incompatible with our facilities. Please check the pins locations before
the connection and turn off the connection of different configuration.
• If the facility or the power cord has apparent damage, please turn off the
5
power, put it or them in a safe place and do not use it or them before they
are fixed.
• This balance could only be connected to our accessories or optional
fittings. We are not responsible for any modification the operator makes
to our balance, including using the facilities and cable which are not
supplied by us. However, we are always ready to offer the operation
norms information.
• Please do not open the balance. If the guarantee lable is damaged, our
quality guarantee will automatically cease being effective.
• If the balance does not work well, please contact your local distributor or
our customer service center.
PREPARATORY BEFORE USING
Storage
This balance requires an environment which is free from excessive high or
low temperature, corrosive, vibration, air current and collision.
Unfolding the package
• Unfold the package and check if there is any outer damage of the balance.
• If there is outer damage, please refer to section routain maintenance
and troubleshooting.
• Please keep all the package for possible transportation in the future.
When pack the balance, please remove all the cables to avoid unnecessary
damage.
6
Package list
• The balance
• Weighing pan
• Pan support
• Power adapter
• User manual
INSTALLATION OF THE BALANCE
Put it in a proper place, please avoid the following situations:
• Much heat and direct sunlight.
• Air currents and vibrations.
• Excessive moisture.
Usage Conditions
Please do not lay the balance in a quite damp palce for a long time. If the
balance is transferred from a lower temperature environment to a higher
temperature environment, please lay it there with power off foraround 2 hours.
Install the balance with wind shield
• Assemble the parts in the
indicated order.
4
3
2
1
7
Install the balance with round weighing pan
• Installation Sequence.
• Pan support.
• Weighing pan.
Install the balance with square weighing pan
• Installation Sequence
• Pan support
• Weighing pan
Connect the Power Adapter
1
2
Only the power adapter offered by us is allowed.
• Connect the power adapter to the balance.
• Connect the power adapter to the power socket.
Install the External Facilities
Turn off the balance before connect it or disconnectit with external facilities
such as the printer or the computer).
8
Warm-up Time
To assure the measure accuracy, the balance must be warmed up for 30
minutes before normal operation.
Adjust the Level Gauge Purpose
• Adjust the level guage of the balance. The level
guage needs to be adjusted once its place is
changed. The two front bottom bolts are used
to adjust the level guage.
• Spin the two bolts as shown in the figure until the
bubble in the level gauge is in the ceter of the circle.
• Normally, it needs to be adjusted repeatedly.
L
R
R
R
L
L
DISPLAY AND KEYS DESCRIPTION
9
1. Capacity and readability.
2. Weighing mode signs: Inspect - inspect mode.
Count - counting pieces mode.
Denst - density mode.
Net - Tare weight / Gross weight/ Net weight.
3. Tare weight / Gross weight sign.
4. Weighing units.
5. Level gauge.
6. High / Low warning signs.
7. OK indicator (stable display).
OK - Reading shown is stable.
g - Reading shown is given in grams.
OZ - Reading shown is given in ounces (1g = 0.03527396200 oz).
ct - Reading shown is given in carats (1g = 5.0000000000 ct).
dwt - Reading shown is given in pennyweight (1g = 0.64301493100 dwt).
% - Reading shown is given in percent weight.
PCS - Reading shown is given in as a counting.
------- The balance is developing a stable reading.
UNABLE - Error operation.
HHHHH - The weight on the pan excedes the capacity of the balance.
LLLLLL – The pan is not properly seated or has been removed.
10
KEYS DESCRIPTION
Calibration / Adjustment Key
Print / Output Key
Count / Function confirmation Key
Percentage Key
Unit conversion key
Tare Key
Menu Key
Power Key
CALIBRATION
To decide the accuracy of the balance through test the difference between
thereading and the actual weight of the object on the weighing pan.
Prerequisite of calibration:
1. There is no loading on the weighing pan.
2. Press the key.
3. The interior signals are stable.
Procedure
1. Adjust the level guage and warm it up for 25 minutes.
2. Press the key.
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