Shinko Denshi UF-620 User manual

340015M21
Ｂｕｉｌｔ－ｉｎ Ｗｅｉｇｈｔ Ｍｅａｓｕｒｉｎｇ Ｓｅｎｓｏｒ
ＵＦ S e r i e s
Instruction Manual
SHINKO DENSHI CO., LTD.
IMPORTANT
•To ensure safe and proper use of the balance, please read this
manual carefully.
•After reading this manual, store it in a safe place near the balance, so
you can review it as needed.

Introduction
Thank you for purchasing our UFseries.
To ensure smooth and efficient use of this product, please read this manual carefully before
starting use. After reading, please store it with care for future reference when needed.
Be sure to follow the instructions in this manual when you install and operate
this product and during maintenance and inspections.
SHINKO DENSHI CO., LTD. accepts no responsibility for any injury or damage
caused because of failure to follow instructions in this manual or due to
incorrectly using or modifying the product without permission.
The balance (built-in weight measuring sensor) you have purchased cannot be used for
trading transactions or as legal proof in a court of law.
When installing, operating, or performing maintenance and inspections on this product,
give sufficient attention not only to the descriptions in this manual and labels on this
product but also any safety precautions.
This manual is copyrighted by SHINKO DENSHI and may not be reproduced in whole or
in part without prior permission in writing.
If you have any questions about this manual or need more detailed information, please
have the model name (type) and the manufacture number ready and contact the retailer
from whom the balance was purchased for assistance.
Please understand that some parts of this manual might not match the actual product due
to modifications or other such changes.
Descriptions in this manual are subject to change without notice for purposes of product
improvement.
is a registered trademark of SHINKO DENSHI CO., LTD.

Contents
1 How to use this manual..............................................................................................1
2 Precautions for use....................................................................................................2
2-1 Basic Precautions ..........................................................................................................2
2-2 Precautions for embedding the device...........................................................................4
3 Product configuration.................................................................................................5
4 Names of parts...........................................................................................................6
5 Connecting the main unit and embedding it in the equipment ...................................7
5-1 Connecting the main unit ...............................................................................................7
5-2 Embedding the indicator ................................................................................................8
5-3 Connecting the power supply.........................................................................................9
5-3-1 Connecting the power line.............................................................................................9
5-3-2 Power supply specifications........................................................................................10
5-3-3 Recommended connection when using 24V switching power supply.........................10
5-4 Installing the weighing pan...........................................................................................11
6 Operations via the indicator .....................................................................................12
6-1 Indications and operation keys ....................................................................................12
6-2 Zero point adjustment / tare.........................................................................................13
6-3 Calibration (span adjustment)......................................................................................14
6-4 Basic function operations.............................................................................................15
6-5 Details of functions.......................................................................................................16
6-5-1 Auto zero.....................................................................................................................16
6-5-2 Setting the stability decision........................................................................................16
6-5-3 Instability process when the value changes by 1 digit.................................................17
6-5-4 Setting the number of times the moving average is calculated...................................18
6-5-5 Setting the weight update rate.....................................................................................18
6-5-6 Setting the signal processing ......................................................................................18
6-5-7 Setting the readability..................................................................................................19
6-5-8 Stability wait process during zero point adjustment or tare ......................................... 19
6-5-9 Tare weight recording..................................................................................................20
6-5-10 Operation settings for span adjustment.....................................................................21
6-5-11 Weighing unit.............................................................................................................21
6-5-12 Turning the backlight on & off....................................................................................21
7 Connecting the indicator to external devices ...........................................................22
7-1 Connector terminal No. and their corresponding functions..........................................22
7-2 Interface specifications ................................................................................................23
7-3 Output data formats .....................................................................................................24
7-3-1 Format details..............................................................................................................24
7-3-2 Output of special formats ............................................................................................26

7-4 Input commands ..........................................................................................................27
7-4-1 Basic operation............................................................................................................27
7-4-2 Command formats.......................................................................................................28
7-4-3 Examples of input commands .....................................................................................29
7-4-4 Response format.........................................................................................................29
7-5 Example of connection to external device (PC)...........................................................29
8 Using the weight measuring sensor without an indicator.........................................30
8-1 Connector terminal No. and their corresponding functions..........................................30
8-2 Interface specifications ................................................................................................31
8-3 Output data format.......................................................................................................32
8-3-1 Data format (7 digit expanded numeric format)...........................................................32
8-4 Input commands ..........................................................................................................33
8-4-1 Basic operation............................................................................................................33
8-4-2 Command formats.......................................................................................................34
8-4-3 Examples of input commands .....................................................................................35
8-4-4 Response format.........................................................................................................35
8-5 Example of connection to external device (PC)...........................................................36
9 Using via the multi-drop connection.........................................................................37
9-1 Overview of the multi-drop connection ........................................................................37
9-2 Assigning ID numbers to the weight measuring sensors.............................................38
9-3 Communicating with the connected weight measuring sensor....................................39
10 Troubleshooting.......................................................................................................40
10-1 Error messages..........................................................................................................40
10-2 Troubleshooting .........................................................................................................41
10-3 How to reset to the initial state...................................................................................42
Appendices.....................................................................................................................43
Appendix 1 Specifications..................................................................................................43
Appendix 2 Indicator function list .......................................................................................44
Appendix 3 Outlines...........................................................................................................48

1
1 How to use this manual
Please read this instruction manual carefully to fully understand the contents before use.
Hazards and damage resulting from incorrect use of this product are indicated by the
following categories.
The drawings shown below indicate the category of instructions you must comply with.
Be sure to follow the instructions below to prevent bodily injury and/or material damage.
Symbol Meaning
DANGER
This symbol indicates the possibility of death or serious injury and a high
probability of imminent danger.
WARNIN
G This symbol indicates the possibility of death or serious injury.
C
AUTION
This symbol indicates the possibility of injury or only physical damage.
This symbol indicates that performing a certain action is “prohibited.”
This symbol indicates that always performing a designated action is
“mandatory.”
注 意
Note
This symbol is used to urge the reader to be extra careful or to emphasize
certain information.
This symbol is used for the information that can be used as reference when
operating the product.

2
2 Precautions for use
2-1 Basic Precautions
This section describes general precautions to be taken when using the product.
Never disassemble, modify, or repair the product
This may cause malfunctions or emit excess heat.
Heat emissions might lead to an explosion or fire.
Request a repair from the retailer where you purchased the product.
Do not use any power supply other than DC24V power supply.
Using a non-specified power supply may cause malfunctions or excess heat.
Heat generation may lead to an explosion or fire.
Do not install the product in locations where there is the possibility of
leakage of flammable gas such as gasoline or thinner.
This device does not have an explosion-proof structure. Should flammable
gas leak and remain around this device then explosions or fires might occur.
Do not operate the power supply with wet hands.
Connecting or disconnecting the power plug or operating the power switch
with wet hands might cause electric shocks, short circuits, or corrosion.
Do not use the product in environments with a high ambient temperature
or humidity.
Doing so might cause electrical shocks or short circuits.
The operating temperature and humidity range of this product are between 10
to 30°C and 80%rh or lower.
The DC24V power supply line for this device should only be used with this
device and kept separate from other 24 volt DC driven devices for the
following reasons.
This device might not operate incorrectly due to strong noise intruding from
power supply lines of other DC24V motor-driven devices.
This device might not start correctly due to surge current from other DC24V
motor-driven devices.
Other DC24V motor-driven devices might not operate correctly due to the
circuit design of this device.
When selecting the switching power supply current-carrying capacity of
the dedicated DC24V power supply line, use approximately 0.7A per
device as a general guide (device might not start up at a current-carrying
capacity of less than 0.7A).
This device might not start properly if the power supply current-carrying
capacity to too low.

3
Do not strike the diaphragm or packing section of the weight measuring
sensor with a sharp object.
This might make a hole, through which water or dust could penetrate into the
device.
Do not perform high-pressure washing of the diaphragm or packing
section of the weight measuring sensor.
This might allow water to penetrate into the device.
Do not put the weight measuring sensor in water.
This may allow water to penetrate into the device and lead to malfunctions.
Do not move the weight measuring sensor during weighing.
When the weight measuring sensor is moved during weighing, the zero point
or span may change.
When the weight measuring sensor is moved with a container or tare attached
to it, a large inertial force is generated internally which might drastically reduce
the durability.
This might operate improperly in particular when the weight measuring sensor
rapidly accelerates or decelerates rapidly.
Place any motor-driven devices or units having moving parts at least
20mm away from the weight measuring sensor by 20mm.
Placing magnetic material (such as iron) near the weight measuring sensor
may generate an error in the measured weight value.
For accurate mass weighing, a warm-up of 1 hour or longer is required.
The weight value measured right after power-on might contain an error.
Do not use the unit until after warm-up is fully complete.
Ground the switching power supply line used with the dedicated DC24V
power supply of this device.
This will prove effective in improving the device noise immunity.
This will prove effective for preventing electric shock and ensuring safety.
Attach and ground a noise filter upstream of the switching power supply
used with the dedicated DC24V power supply for this device.
This will prove effective for improving the device noise immunity.
Ground the indicator and weight measuring sensor of this device.
This will prove effective for improving the device noise immunity.
Load or unload the sample gently.
Do not weigh an object by dropping it onto the weighing pan or weighing jig.
Though the weight measuring sensor has a built-in overload protection
mechanism and thus sufficient shock resistance, it might malfunction due to
impacts from repeated dropping.
Put this product in a package when relocating it.
Before relocating a unit that has this product built in it, remove this product from
the unit and put this product in the package that came with it.
If the device is relocated without removing it from a unit, it might malfunction due
to impacts during shipping.

4
2-2 Precautions for embedding the device
This section describes precautions to be taken especially when embedding this device
into a unit.

When securing the weighing pan or tare to the installat
ion boss, do not
apply a turning force or pressing load to it that is higher than the
allowable values.
When a force higher than the allowable value is applied, the mechanical section
may become damaged.

Complet
e
ly
debug
automated
equipment
before emb
edding the device in
that equipment.
After debugging and handling of the automated equipment and various
positioning has been completed, embed the actual product (weight measuring
sensor) in that unit and then operate it. Using the product before debugging is
complete might damage the product.

Do not install the device in a place where
air
blows from an air
conditioner.
Weighing may become difficult due to the effect of the wind or the temperature
may become unstable
causing
weighing error
s.

Install the device away from direct sunlight.
The temperature of the weight measuring sensor might become unstable which
causes inaccurate weighing.

Adjust the level of the installation location to
ensure the
weight
measuring sensor will be installed on a level surface.
W
eighing error
s
will
occur
if
not level.

Calibrate the weight measuring sensor after the main unit is installed.
(1)Be sure to calibrate the unit after it is relocated.
(2)
After that, periodically
re
calibrate the weight measuri
ng sensor.

Place
motor
-
driven devices and electromagnetic solenoids
at least 50mm
away from the weight measuring sensor.
The unit might be affected by magnetic material that makes it unsuitable for
weighing such as magnetic sources including permanent magnets. However, it
is ok
ay
to place the weight measuring sensors in close contact with each other.

Eliminate
static electrical charges
.
(1)When an insulating material such as resin is used for a tare or container, the
weighed value might be wrong due to effects from static electrical charges.
Use a glass windshield, a resin windshield with conductive filler, or a metal
container.
(2)To remove the static charges, ground the weight measuring sensor to the
device chassis.

When IP65
performance
is
required, be sure to use waterproof cables and
connector plugs (optional).

Using
a non
-
waterproof type
will not satisfy
protection class IP65
conditions
.

Positioning of the weighing jig
When attaching a positioning pin to determine the position of the weighing jig,
use a taper pin whenever possible to protect the weight measuring sensor.
If using a parallel pin is unavoidable then allow some room in the gap for
inserting and removing the pin.

5
3 Product configuration
This product is composed of the following units. Should you find any missing or damaged
units, contact the reseller from which this balance was purchased.
The weight measuring sensor and the indicator can also be purchased separately.
For more information on the options, refer to "Appendix 1."
Weight measuring sensor
Accessories
Instruction Manual (this document)
Indicator (sold separately)
Accessories
Panel mount clip

6
4 Names of parts
Weight measuring sensor
Indicator
(Front panel)
(Rear panel)
(Indicator power input terminals)
Terminal No. Signal name Input/output Function/Remarks
+ DC24V Input Power +24V
- GND - Power ground
Liquid-crystal display
Operation keys
Installation boss
Cable connector for inter-unit
connection
(D-sub9 pin, male)
Power supply (DC+24V)
input terminal
Power switch
Connector for inter-unit connection cables
RS-232C output
connector
+24V + -
SCALE F.G. RS-232C
Frame ground terminal (M3)
Connector for AC adapter

7
Connect the display unit cable to the
SCALE side connector.
1 2 3 4 5
6 7 8 9
D
-
S
U
B
9
P
オ
ス
・
コ
ネ
ク
タ
:
リ
ア
パ
ネ
ル
5 Connecting the main unit and
embedding it in the equipment
5-1 Connecting the main unit
Connect the indicator and the weight measuring sensor by using an inter-unit connection
cable.
Tighten the cable clamping screws securely so that the cable will not come loose from the
connector.
To supply power, connect a power line to the power supply terminal block or use an optional
AC adapter.
Connection Drawing
Use an optional inter-unit connection cable to connect the weight measuring
sensor to the indicator.
Indicator SCALE connector pin assignment
D-Sub9 pin
Terminal No.
Signal name
Input/output
Function/Remarks
1 DC24V Output Power +24V
2 TXD Output RS-232C transmission*1
3 RXD Input RS-232C transmission*1
4 GND - Power ground
5 SG - Signal ground
6 EXT.TARE Output External tare
7 FG - Frame ground
8 A I/O RS-485 A*2
9 B I/O RS-485 B*2
*1 Customers are not allowed to use the RS232C terminal on the "SCALE" connector.
*2 Please use a twisted-pair cable.
To find pin assignments for the weight measuring sensor, refer to Section 8-1
"Connector terminal No. and their corresponding functions."
Indicator
Weight measuring sensor
Inter-unit connection
cable (optional)
(Connecting a power line)
SCALE connector
D-Sub9 pin, male

8
5-2 Embedding the indicator
The indicator can be installed on any panel by using the panel mount clip provided with the
product if required. The supported panel thickness is 4.5mm or less.
1
Fit the indicator into the panel.
2
Attach the panel mount clip.
3
Secure the panel mount clip.
Tighten the clamping screws
manually.
Check that the indicator is clamped
securely.
Panel mount clip
Fixing screws
Panel
Indicator

9
5-3 Connecting the power supply
5-3-1 Connecting the power line
Available power line gage sizes
Solid wire
φ
1.0 (AWG26) to
φ
1.2mm(AWG16)
Twisted wire 0.3mm2 (AWG22) to 0.75mm2 (AWG20)
Stand diameter: φ 0.18 or more
Insert the power line into the power supply terminal block.
Push in the release button on the terminal block by using a flat-blade screwdriver or
similar tool and then insert the power line.
The exposed wire length is 10mm.
Fix the power line.
The power line is locked by returning the release button back to the front position by
using a flat-blade screwdriver, etc.
To disconnect the power line, push in the release button again by using a flat-blade
screwdriver or similar tool.
1
2
Release button
Power line
Power line

10
5-3-2 Power supply specifications
Description Remarks
Surge (inrush) current of the
power supply Surge current up to about 2A is generated.
Rated power supply voltage /
Current consumption DC +24V ±10% / 0.1A
Recommended power supply
COSEL PBA15F - 24 (24V / 0.7A)
When 1 unit is driven
COSEL PBA30F - 24 (24V / 1.3A)
When 2 units are driven
5-3-3 Recommended connection when using 24V switching power
supply
* Connect the grounds E to each other via a
structural piece, bus bar, or earth cable, etc.
DC24V
±
10%
DC24V±10%
Indicator
Weight measuring
sensor
E
E
E
E
E
E
E
E
FG
Dedicated
power
supply
COSEL
: PBA30F-24
E
FG
Dedicated
power
supply
COSEL
: PBA30F-24
E
Noise
filter
AC power supply
E
FG

11
5-4 Installing the weighing pan
Before use, attach the optional weighing pan or any weighing jig of 100g or heavier to the
installation boss.
Example of weighing pan installation
注 意
Note
If the mass of the weighing pan or weighing jig is heavier than the range of the zero
point adjustment to be performed at power-on, then tare is performed at power-on.
When tare is performed, the available weighing range narrows by the mass of the
tare, which means that "available weighing range = capacity - mass of the tare."
To prevent damage to the mechanical section, do not apply a torque of 0.5N-m or
higher to the clamping screws to attach to the weighing boss during tightening.
Also, do not push down on the clamping screws and bolts too strongly.
Installation boss
Clamping screws (M4x6)
Weighing pan

12
6 Operations via the indicator
6-1 Indications and operation keys
The optional indicator and inter-unit connection cable are required.
Display pattern
(Some symbols may not be used)
Symbols
Symbol Description
Stable symbol (indicates that weighing is stabilized)
Zero point indication
Minus indication
Stability wait
g Gram unit
Data is being output
(upper) Tare is in progress
Calibration is in progress
Functions of operation keys
Operation key Function
Cal key [Press] Starts the span adjustment.
Set key [Press] Ends the function settings.
[Press] Specifies an ID for multi-drop connection.
Function key [Press and hold] Calls up a function.
[Press] Selects an item during function setting.
[Press] Changes and ID for multi-drop connection.
Zero/Tare key
[Press] Performs zero point adjustment or tare to set the
display to zero.
[Press] Selects a function item.
[Press] Changes an ID for multi-drop connection.
Set
Function
Zero/Tare
Cal

13
6-2 Zero point adjustment / tare
Zero point adjustment/tare
1
Press the Zero/Tare key during
weighing.
The zero point adjustment or tare is automatically performed depending on the load
applied to the weight measuring sensor. At this time, "->0<-" is lit while the zero point is
displayed.
Differences between zero point adjustment and tare
Zero point adjustment Tare
Working load Approx. 1.5% or less of the
capacity Approx. 1.5% or more of the capacity
Measured value
after the operation Gross weight Net weight
Available weighing
range against the
capacity
Unchanged Becomes narrower by the weight of the
tare
Available weighing range =
capacity (100% of the capacity)
Available weighing range = capacity -
weight of the tare
Symbol None " (upper)"
"o-Err" is displayed when the total weight of the samples is more than the capacity.
When the samples are added after the tare, only the (net) weight of the added samples is
displayed.
In addition to the method of pressing the Zero/Tare key, zero point
adjustment and tare can also be executed by using the RS-232C tare
command (refer to "1. Zero adjustment/tare command" in Section 7-4-2) or
by using an external tare input from the connector (refer to Section 7-1
"Connector terminal No. and their corresponding functions").

14
6-3 Calibration (span adjustment)
Calibrating the weight measuring sensor is called "span adjustment" and is required for
high-precision weighing.
Since the weight measuring sensor is affected by gravitational acceleration, it should be
recalibrated for each place where used. Calibration is also required when the device is not
used for a long time or the display becomes inaccurate.
The span adjustment performs calibration by using a weight (span adjustment using an
external weight).
注 意
Note
This page describes the span adjustment via operations on the indicator.
For span adjustment without using the indicator, refer to "3. Span adjustment command"
in Section 7-4-2 "Command formats."
Switch on the device one hour before the span adjustment to adapt it to the room
temperature.
Check that the function is set to "5. CA 3" (refer to Section 6-5-10 "Operation settings for
span adjustment.")
Executing the span adjustment
Start the span adjustment.
Perform the span adjustment while the
weighing pan or weighing jig that you
obtained is attached to the device.
Press the Cal key when a weight is
displayed.
"CAL.EXt" is displayed.
After a while, the display changes to " on 0 "
and starts flashing.
Mount a weight.
When the display changes to "on F.S.,"
mount a weight.
The display changes to "on F.S." and starts
flashing.
Finishing span adjustment
After " End " is displayed, the display
automatically returns to the weight display.

To abort the span adjustment, press any key other than the
Function
key.
When " 1-Err " is displayed, it indicates that the mass of the weight used
is much lighter than the capacity of the weight measuring sensor.
Use the weights of more than 50g for UF-620 and of more than 300g for
UF-3200.
When " 2-Err " is displayed, it indicates that the difference in displayed
weight between the weight measuring sensor and the weight exceeds 1%.
When an error message is displayed, then calibration is not performed.
To obtain more precise calibration, use a weight with a mass heavier than
the actual use range.
If the jig attached to the weighing boss is heavy, a weight that is the same as
the capacity cannot be used.
3
1
2
Cal
Weighing pan

15
6-4 Basic function operations
This device has a lot of functions. Pressing "functions," allows making settings according
to the current situation.
Call up the function mode.
Press and hold the Function key until " Func
" is displayed.
The first function item is displayed.
A function is displayed in the format of
"ItemNo.ItemName.SettingValue."
Select a setting item.
Press the Function key to select an item for
which settings are needed.
Each time the Function key is pressed,
these items are displayed sequentially.
After the last item is displayed, the first
item is displayed again.
Select a setting value.
Press the Zero/Tare key to select a setting
value.
Every time the Zero/Tare key is pressed,
the setting value changes.
After the last setting value is displayed,
the first setting value is displayed again.
Record the setting value.
Press the Set key.
The setting is recorded and the function
ends.
The device returns to the measurement
mode.
When a function is displayed on the indicator, the setting value that has
been recorded in the weight measuring sensor is loaded first. If a setting
has been changed then this change is reflected to the weight measuring
sensor.
1
2
3
4
Set
Press and hold
ItemNo.ItemName.SettingValue
Function
Function
Zero/Tare

16
6-5 Details of functions
Depending on the environment where used, the response speed, stability decision, and so
on can be set by using functions. To find out how to operate the functions, refer to Section
6-4 "Basic function operations." The "d" in each table indicates the readability. To find
more details, refer to Appendix 1 "Specifications" and Section 6-5-7 "Setting the
readability."
6-5-1 Auto zero
This function reduces flickering caused by a fluctuating zero point in order to
maintain the zero display. If the zero point fluctuation is within Auto Zero operation
range, it is brought within the zero point so as to maintain the zero display. The zero
point after the zero point adjustment serves as a reference point.
[Auto zero]
Setting value Operation range
Bringing into zero point
1. A.0
0
1
2
3
4
5
Off
±0.5d
±1d
±2d
±4d
±8d
Off
Weak
↑
|
↓
Strong
* The symbol and "d" in the table respectively indicate the initial value and
readability.
6-5-2 Setting the stability decision
This function sets a reference value to judge if the weighing status is stable. In the
stability decision, the weighing status is considered to be stable when the weighed
value is sequentially updated within the set range. When weighing is stable, the ""
appears lit up on the display.
[Stability decision range]
Setting value Decision range Decision criteria
2A.S.H.
1
2
3
4
5
6
7
8
±
0.5d
±1d
±2d
±3d
±4d
±8d
±12d
±18d
Stricter
↑
|
|
|
|
↓
Milder
* The symbol and "d" in the table respectively indicate the initial value and
readability.
Stability is judged by the fluctuation range of the weighed value. Though setting a
larger stability decision range increases the potential error, it shortens the time
required until the device reaches a point where considered stable.