Vibra GZII-CEx Series User manual

3303M11
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GZII-(B)CEx Series
Operation Manual
SHINKO DENSHI CO., LTD.
zTo ensure safe and proper use of the scale, please read this manual
carefully.
zAfter reading this manual, store it in a safe place near the scale, so
you can review it as needed.
Instructions
Manual_GZ_V1

CAUTION
Thank you for purchasing the GZII Series Intrinsically Safe Explosion-Proof
ElectronicScale.
Use apparatus correctly according to Operation manual, otherwise it will cause
dangerous for life and cause disaster like factory explosion by the gas ignition. In the
case of improper use, no safety shall be guaranteed.
Before operation, the law and technical standard of the country where apparatus is
operated shall be confirmed whether target gas suits the gas classification, otherwise it
will be dangerous for life and cause disaster like factory explosion by the gas ignition.
Any modification of apparatus shall be strictly prohibited. In the case of
modification of apparatus, no safety shall be guaranteed at all.
Power supply shall be provided through an over current protector. (16A)
Only connect SELV circuits whichare DI/RI from hazardous live to the I/O
interfaces of the equipment.
Install equipment so that the power supply cord canbe pulled out without
hindrance in event of emergency.

IECEx CERTIFICATE
Certificate No.: IECEx KEM 08.0016
Type of Protection: ia
Marking: Ex ia II B T4
STANDARS: IEC 60079-0:2004 Edition: 4.0
IEC 60079-11:2006 Edition: 5
Test Report: NL/KEM/ExTR08.0012/00
EQUIPMENT: Temperature Range: +5°C to +35°C
POWER SUPPLY: GZ II-B, EZ II-B and EZ-B Series:
1.5 V Manganese dry cell batteries National/Panasonic
Type R14P (NR). (6 non-rechargeable)
GZ II, EZ II and EZ Series:
Maximum values Ui = 43 V; Ii = 170 mA; Pi = 0.931 W; Ci = 7.1 nF; Li = 0.75 mH.
The insulation between an intrinsically safe circuit and the frame of the (electrical) apparatus is not
guaranteed.Avoid excess voltage.
EC-TYPE EXAMINATION CERTIFICATE
Certificate No.: KEMA08ATEX0054
Marking:
STANDARS: EN 60079-0:2006
EN 60079-11:2007
Test Report: KEMANo. 211076300
EQUIPMENT: Temperature Range: +5°C to +35°C
POWER SUPPLY: GZ II-B, EZ II-B and EZ-B Series:
1.5 V Manganese dry cell batteries National/Panasonic
Type R14P (NR). (6 non-rechargeable)
GZ II, EZ II and EZ Series:
Maximum values Ui = 43 V; Ii = 170 mA; Pi = 0.931 W; Ci = 7.1 nF; Li = 0.75 mH.
The insulation between an intrinsically safe circuit and the frame of the (electrical) apparatus is
not guaranteed.Avoid excess voltage.
Ⅱ2G
Ex ia ⅡB T
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Conditions and Cautions for
Installation
1 Conditions of Installation (for the
Explosion-Proof Type)......................... 1, 2
2 Cautions about Installing the Scale .......... 3
Names and Functions of the
Component Parts
1 Outer View.............................................. 4
2 Details of the Panel ................................. 5
Installation
1 Checking Supplied Items......................... 6
2 Cautions about Installation ...................... 7
3 Assembling a Small-Sized Scale.............. 8
4 Assembling a Medium-Sized Scale.......... 9
4 Horizontal Adjustment of the Scale........ 11
5 Installation of the Power Supply Box..... 12
6 How to Replace Batteries ...................... 13
Basic Operation of the Scale
1 Getting Started and Checking Operation 14
3 Taring and Weighing ............................. 15
4 Notes on Handling the Scale.................. 16
Addition Function
1 Select the Addition Function.................. 17
2 Procedure for Making Addition and
Displaying the Sum..........................18, 19
Limit Function
1 Select the Limit function...................20, 21
2 Setting by Weighing Actual Samples .22, 23
3 Setting by Entering Values ..............24, 25
Functions
1 Functions and How They Work..........26, 27
2 Checking the Set Value ...........................28
3 Change the Setting..................................29
Calibration of the Scale
.........................................................30, 31
Troubleshooting
...............................................................32
Standard Specifications
1 Common Specifications...........................33
2 Configuration of Each Model ..................34

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1 Conditions of Installation (for the Explosion-Proof Type)
Power supply box type
Input
Pi = 0.931 [W]
Ui = 43 [V]
Ii = 170 [mA]
Ci = 7.1 [µF]
Li = 0.75 [mH]
Conditions for ordinary appliances connected to the insulation barrier:
The voltage to ground of the input power supply and in the instrument shall not exceed 250 VAC, 50/60 Hz or
250 VDC during normal operation and even during a fault.
The E(IS) shall be an intrinsically safe explosion-proof grounding pin for maintenance.
14
13
GND
電源
DC20V〜35V
信号回路
10
11
12
ﾃ
ﾞｰﾀ
入
出力
入力
電源
一般電気機器
非危険場所
絶縁ﾊﾞﾘﾔ
1
2
3
4
5
6
重量表示器
GZD01
1
2
3
4
5
信号回路
電源回路
E(IS)
1
2
3
4
5
危険場所
ﾒﾀﾙｺﾈｸﾀ ﾒﾀﾙｺﾈｸﾀ
線径0.5mm
4芯ｼｰﾙﾄﾞ線
2
線径0.5mm
5芯ｼｰﾙﾄﾞ線
2
専用ｹｰﾌﾞﾙ（はかりｹｰﾌﾞﾙ）
重量測定回路
重量測定器
出力電圧 +12V
ｲﾝﾀﾌｪｰｽ電圧 +6.8V
Input power
supply
Non-hazardous area Hazardous area
Data
input/output
Ordinary electric
appliances
Power supply voltage:
20 VDC to 35 VDC
Signal circuit Insulation barrier
Output voltage: +12 V
Interface voltage: +6.8V
Metal connector
Power supply
circuit
Metal connector
Signal circuit
4-core shielded cable,
Cross section: 0.5 mm2
Weight display
GZD01
Weight measurement circuit
Weight measuring
instrument
Dedicated cable for the scale (scale cable)
5-core shielded cable,
cross section: 0.5 mm2

Conditions and Cautions for Installation
2
Dry-cell battery type
Inductance of the dedicated cable for the scale (scale cable):
0.01 mH or less
Capacitance of the dedicated cable for the scale (scale cable):
0.005 µF or less
Dry-cell batteries to be stored in the battery box:
R14P from National/Panasonic (Connect 6 cells in series.)
Battery replacement in a hazardous area is prohibited.
Hazardous area Metal connector
Weight measurement
circuit
Weight display
Power supply
circuit
Battery box
6 R14P cell batteries
connected in series.
GZBDS
P-1 board
Case grounding
Weight measuring
instrument
1
4
3
5
2
Case grounding
Dedicated cable (scale cable)
5-core shielded cable,
Cross section: 0.5 mm2

Conditions and Cautions for Installation
3
2 Cautions about Installing the Scale
1. Be sure to replace dry cell batteries of the dry-cell battery type scale in a non-hazardous area.
The type of the cell batteries is limited to C-size red manganese batteries (type: R14P from National /
Panasonic).
2. The power cable of the power supply box type is laid between the hazardous area and the non-hazardous area.
Be sure to have the specified gas flow prevention work performed for the lead-in section of the cable.
3. Never set the power supply box and the barrier in the hazardous area.
4. The standard power supply box is provided with a 5-m power cable.
Options of extended cables are available in increments of 5 m to a maximum of 100 m. Use of our company’s
cables is recommended for the power supply box.
5. Establish a ground for the case when it is deteriorated by pressure.

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1 Outer View
GZ II-(B)2000CEx GZ II-(B)6000CEx to (B)12KCEx
GZ II-(B)30KCEx to 60KCEx
Power supply box
(Provided for the power supply box type only)
Small-sized scale (2 kg to 12 kg)
Medium-sized scale (30kg to 60kg)
Display
Pole
Pan
Calibration knob
A
djuste
r
Display
Pole
Pan
Calibration knob
A
djuste
r
Display
Pole
A
djuste
r
Locations of the connectors (pin
board) for output options
Ground pin
Power switch
Power cord

Names and Functions of the Component Parts
5
2 Details of the Panel
Press this key to turn the scale on or off. ⇒Refer to “Getting Started and Checking Operation” on page 14.
This key can be disabled on the power supply box type. ⇒Refer to “Functions” on page 26 and after.
Press this key for output to the printer. Or use this key as an output command key for an installed output device.
⇒Refer to “Functions” on page 26 and after.
Limit key: Press this key to start the limit function. ⇒Refer to “Limit Function” on page 20 and after.
Add key: Press this key for addition (accumulation) of data. ⇒Refer to “Addition Function” on page 17.
This key works as an interrupt keyduring selection of a function or during setting of the limit function.
Set key: Press this key to set a limit value of the limit function or to move the digit for value entry when setting
numerical values.
⇒Refer to “Limit Function” on page 20 and after.
Switch key: Press this key to display a sum (accumulation). ⇒Refer to “Addition Function” on page 17.
Press this key to start or end the selection of a function. ⇒Refer to “Functions” on page 26 and after.
Zero/Taring key: Press thiskey to zero a readout. ⇒Refer to “Taring and Weighing” on page 15.
The “Taring in progress” mark lights when you zero 1.5 % or more of the weighing capacity.
•
Display of judgment result of the
limit function
The judgment result is indicated by the
mark “W” that lights on the associated
position.
⇒Refer to “Limit Function page” on 20.
•
Display of the sum
The mark “W” lights and
the sum (accumulation) of
addition is displayed.
⇒Refer to “Addition
Function” on page 17.
•Taring in progress
This mark lights when
the weight of the
container (tare) is
subtracted.
Taring and Weighing
⇒Refer to “Taring
and Weighing” on
page 15.
•
Print
This mark lights when data
is printed or output.
⇒Refer to “Functions” on
page 26 and after.
(This mark stays out on the
dry-cell battery type.)
•
Battery level
This mark blinks when the battery
capacity drops to the
predetermined level.
⇒Refer to “How to Replace
Batteries” on page 13 and after.
(This mark stays out on the power
supply box type.)
•Zero point
This mark lights
when the correct
zero point is
reached.
⇒Refer to “Taring
and Weighing”
on page 15.

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1 Checking Supplied Items
Check the supplied items of the model you purchased and the accessories of the power supply part
shown in the following table. If any items are missing or broken, please contact immediately the retailer
of the scale or our Sales Office.
Small-sized model
Accessory Round pan base Square pan base Medium-sized model
Display
Scale
(main body)
Pan base Not supplied for this model.
Pan
Pole
Wrench Not supplied for this model.
Operation
Manual
* A metal part for angle
adjustment is provided
only for the medium-
sized and large-sized
models.
Pole base
Subtense = 4 mm
Sub-pan base
Pole

Installation
7
Accessories of the Power Supply Unit
Power supply box type Dry-cell battery type
(1) Power supply box ×1
with spare fuses (1) C-size manganese dry-cell battery (R14P) ×6 ※R14P(NR):National / Panasonic
(2) Power supply cable (5 m) ×1(2)Smallwrench ×1
(Subtense: 2 mm)
2 Cautions about Installation
Install the scale in the best environment available. Using the scale in any of the environments shown
below may cause weighing errors or instrument failures:
1
1
1
A loose floor on which the scale sinks when
loaded with a sample 2
2
2
An unstable base or a location subjected to
vibration
3
3
3
A location close to an air-
conditioner 4
4
4
A location exposed to direct
sunlight 5
5
5
A location subjected to abrupt
changes of ambient
temperatures or humidity
C-size
manganese dry-
cell battery
(R14P)
C-size
manganese dry-
cell battery
(R14P)
C-size
manganese dry-
cell battery
(R14P)
C-size
manganese dry-
cell battery
(R14P)
C-size
manganese dry-
cell battery
(R14P)
C-size
manganese dry-
cell battery
(
R14P
)

Installation
8
3 Assembling a Small-Sized Scale
Install the accessory pole to the rear guide
with the pole knob.
Unless the pole fits the guide correctly or
the pole knob screw is not tightened
enough, the display may tilt or flicker.
Pass the scale cable in the pole and attach
the display to the pole.
Connect the scale cable and the power
cable to the display.
Set the pan base with its screw hole aligned
to the projection on the main body and
tighten the screw with a screwdriver or an
appropriate coin.
Attach the pan.
When a square pan is used, a sub-pan base
is added under the pan.
* Models GZII-(B)30KCEx to (B)60KCEx are separate types that do not require pole
installation. The pan base is preinstalled in the main body.
1
2
3
4
Attach the pole.
Pole
Pole fixing knob
Pole guide
Attach the
Display
Scale cable
Attach the pan base.
Round pan base Pan base Square pan base
Attach the pan.
Sub-pan base
Pan

Installation
9
4 Assembling a Medium-Sized Scale
If you do not use the pole, remove the display stay and assemble the scale as indicated on the next page.
Install the accessory pole base to the base
guide at the bottom of the scale with the
supplied large wrench. Unless the pole
base fits the guide correctly, the pole base
cannot be installed on the scale.
Pass the scale cable under the pole (from
the wider side of the fitting hole).
Next, attach the pole to the pole base.
Attach the display to the pole and connect
the scale cable.
For the power supply box type, connect
the power cord too.
1
2
3
Attach the pole base.
A
ttach the
p
ole.
Attach the display.
Pole base
Base guide
Pole base
Large wrench
Phillips screwdrive
r
Display stay
Phillips
screwdriver Pole
Pole
Dis
p
la
y

Scale cable

Installation
10
Place the pan on the scale.
Attach the pan.
Pan

Installation
11
4 Horizontal Adjustment of the Scale
Rotate the four adjusters until the bubble in the
level fits within the blue circle.
Press the four corners to check for rattling of
each adjuster.
◆GZ II-(B)2000CEx to (B)12KCEx ◆GZ II-
(
B
)
30KCEx to
(
B
)
60KCEx
Level
Adjuster
Provided in the four corners.
A
djuste
r
Provided in the four corners.
{°
Level
Bubble
Blue
circle

Installation
12
5 Installation of the Power Supply Box
This section applies to the scale of the power supply box type. Jump to the next section when you use
a dry-cell battery type.
First finish the cable installation work. Be sure to have the specified gas flow prevention work
performed for the lead-in section of the cable because the section is laid between the hazardous area
and the non-hazardous area.
Be sure to extract the power cord from the wall socket before installing the power supply box.
Remove the acrylic cover and connect the
power cable.
Connect the cable to the correct position
referring to the following figure.
絶縁バリヤ
電
源
ケー
ブ
ル
アクリルカバー
Connect the power cable
Insulation barrier
A
crylic cove
r
Power supply cable
1
Red
Black
Wiring diagram of the barrier
Non-hazardous area Hazardous area
Input voltage:
+24 V
Power supply box
Red
Orange
Brown
Black
Red
White
Green
Red
Black
Interface voltage:
6.8 V Output voltage:
+12 V
Communication cable
(preinstalled)

Installation
13
6 How to Replace Batteries
This section applies to the scale of the dry-cell battery type. Return to the previous section when you
use a power supply box type. Be sure to replace batteries in a non-hazardous area.
Loosen the screw in the rear of the display
and the battery box can be removed.
Remove the relay connector in the battery
box.
Do not pull the cable since it may cause wire
breakage. Hold and pull the connectors when
you disconnect the cables.
Remove the battery box cover with the small
wrench in the accessory kit.
Replace the batteries in the correct direction.
Install the cover with the small wrench.
Connect the relay connector of the battery
box and install it on the display.
Important
The type of the cell batteries is limited to C-size red manganese batteries (type R14P(NR) National
/ Panasonic). Use of other batteries is strictly prohibited because they may not be of the required
explosion-proof performance.
Remove the battery box.
Battery box
Scale cable
Display
Relay connector Phillips
screwdriver
Small wrench
Insert batteries.
Battery box
Dry-cell battery
Attach the battery box.
1
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1 Getting Started and Checking Operation
As for the power-supply box type, first turn on the power switch in the power supply box.
Press the key on the panel, and all the
indicators light up, showing that the
instrument is operating.
At this time, check that no LEDs nor LED
segments stay out.
After a few seconds, zero is displayed in
the weight display.
Push the pan slightly using your finger to
check that the display readout changes.
Also check that zero is indicated in the
display after the finger is released.
If the display readout does not become
zero, press the key to make the display
show zero. ⇒Refer to “Set the zero point.”
* For setting the zero point, set the scale to display zero when nothing is placed on the pan or
approximately 1.5% of the weighing capacity is loaded.
1


g
g
3
g
-  
g
4
2
Turn the power on.
Turn the power on.
Check the Reproducibility.
Make the display show zero.
Display when the pan is pushed
Display when the finger is released

Basic Operation of the Scale
15
3 Taring and Weighing
Place the tare (container) on the pan and
press the key, and the readout changes
to zero. ⇒Refer to “Taring.”
When samples are placed in the
container, the net weight of the sample is
displayed.
Press the key, and the readout
changes to zero. ⇒Refer to “Taring.”
When additional samples are placed in
the container, the weight of only the
added samples is displayed.
1. When the zero point is accurately reached, the zero point is flagged with a “T” mark. (This mark
disappears when another value is displayed.)
2. If approximately 1.5% of the weighing capacity is displayed as zero, the mark that indicates that taring
is ongoing (“ ”) is displayed. At this time, the weighable range is narrowed.
Weighable range = original weighing capacity – weight of the tare
K
Ke e
y
y
p
po oi in nt ts s

g

g
1

g
2

g
3

g
4
Taring operation
Measure the net weight.
Taring operation
Place additional samples.
Place the tare
(container) on the pan.
The weight of the tare
(container) is displayed.
Display after taring
Place the sample
in the container. The net weight is
Display after taring
Place additional samples in
the container. Result of weighing the
added samples

Basic Operation of the Scale
16
4 Notes on Handling the Scale
1
1
1
Load or unload samples on the scale carefully.
Do not apply mechanical shocks to the
instrument.
2
2
2
Do not permit any material to be inserted beneath
the pan.
3
3
3
Do not leave a load over the weighing capacity
on the scale (“” displayed).
The weighing capacity = the weight of the tare
+ the weight of the sample
4
4
4
Calibration is recommended after installation or
relocation or when the scale is used after being
stored for an extended period of time.
Refer to “Calibration of the Scale” on page 30 and
after.
5
5
5
Be sure to replace batteries in the non-hazardous area.
The type of the cell batteries is limited to C-size red manganese batteries (type: R14P).
6
6
6
Do not attempt to repair the scale because it may cause the explosion-proof performance to be lost and is
very dangerous.
7
7
7
Do not attempt to modify the scale because it may cause the explosion-proof performance to be lost and
is very dangerous.
8
8
8
Any faults or breakage cause by erroneous handling, repair, or modification by the user is not covered
by the warranty.