Minebea Intec YRB02-X User manual

98647-003-43
Operating Instructions | Betriebsanleitung
Minebea Intec YRB02-X
Ex Rechargeable Battery Pack (External Explosion-protected Rechargeable Battery Pack)
Ex-Akku-Pack (externer wiederaufladbarer Ex-geschützter Akku-Pack)
98647-003-43

2Operating Instructions | Betriebsanleitung Operating Instructions | Betriebsanleitung 3
Overview of the Equipment
English – page 3
Deutsch – Seite 24

Operating Instructions | Betriebsanleitung 3
Overview of the Equipment
Overview of the Equipment
1 Cover with handle
2 ON key
3 OFF key
4 Threaded sealing cap
5 Female connector for the power cable
6 Connecting cable
7 LED, red (battery discharged)
8 LED, green (operating mode)
8
7
6
5
1
2
3
4

4Operating Instructions | Betriebsanleitung Operating Instructions | Betriebsanleitung 5
Contents Product Description
16 Specifications
16 Serial Number Coding
17 Accessories
17 Power Cords for the Battery Charger
18 Declaration of Conformity
19 EC Type-Examination Certificate
42 FM Certificate
!Important Note to Users
Make sure to carefully read and
follow sections marked with this
symbol – they contain important
safety instructions.
Contents
3 Overview of the Equipment
4 Contents
5 Product Description
5 Intended Use
5 Conceptual Design
6 Housing Protection Rating
6 Dimensions and Weight
6 Charger Specification
7 Warning and Safety
Information
9 Notes on Storing the Battery Pack
9 Prior to Initial Operation
10 Getting Started
10 Unpacking the Unit and
Equipment Supplied
10 Function Test
10 Charging the Battery Pack
13 Connecting an Explosion-
protected System
14 Operation
14 Switching Connected
Equipment On and Off
14 Battery Level
14 Disposing of Used Equipment
15 Maintenance and Cleaning
15 Using the Charge in
the Battery Pack
15 Storage and Shipping
Conditions

Operating Instructions | Betriebsanleitung 5
Product Description
Product Description
Intended Use
The YRB02-X is an external rechargeable explosion-
protected (Ex) battery pack and is used to power Minebea
Intec equipment in hazardous areas or locations without
AC power (see the list under item (15) on the EC-type
examination certificate and also the instruction manual of
the particular instrument for more information).
The equipment meets the requirements for Group II and
Category 1D and 2G equipment in accordance with the
ATEX and can therefore be used in Zone 1, 2, 20, 21 and
22 hazardous areas. Use in the presence of potentially
explosive gases of group IIC and temperature class T4 is
permissible. The maximum surface temperature
(for dust protection) is 80°C.
In the temperature range of –20°C to +40°C, the external
rechargeable Ex battery pack can also be used outside
buildings.
Conceptual Design
The external rechargeable Ex battery pack consists of two
12 V rechargeable batteries that are wired
in series and are connected to an electronics box by cables.
The outer housing of this Ex battery pack features a mem-
brane switch with an ON key and an OFF key and two
LEDs. The intrinsically safe cable for connecting the bat-
tery pack to an intrinsically safe scale is routed to the out-
side of the
electronics box.

6Operating Instructions | Betriebsanleitung Operating Instructions | Betriebsanleitung 7
Product Description
Housing Protection Rating
The electronic box and the rechargeable batteries meet
IP65 protection rating requirements in
accordance with EN60529 if the output cable is con-
nected and its charging plug is secured with
the threaded sealing cap. The IP23-protected
outer housing is designed to allow gases to escape
from the batteries and through the housing in
a controlled manner.
Dimensions and Weight
Footprint: 180 mm+180 mm; height: 125 mm (includ-
ing rubber feet and without handle);
approx. 8 kg
Charger Specification
Use only the YRB02LD battery charger (Type
FW7305/24A) to recharge the external rechargeable Ex
battery pack. Maximum power consumption:
36 W, IP30 protection rating.

Operating Instructions | Betriebsanleitung 7
Product Description Warning and Safety Information
Warning and Safety
Information
Improper use or handling can result in property damage
and/or personal injury. Read these operating instructions
thoroughly before using your external rechargeable Ex
battery pack and keep them in a safe place. Make sure all
operating personnel are trained to recognize malfunc-
tions and to take the appropriate corrective or preventive
measures.
Follow the instructions below to ensure safe and trouble-
free operation of your YRB02-X external rechargeable Ex
battery pack:
– Connect the external rechargeable Ex battery
pack YRB02-X only to Minebea Intec equipment that is
appropriate for use with the unit (see the list under item
(15) on the EC-type examination certificate
and also the instruction manual of the particular instru-
ment for more information).
– Allowable ambient operating temperature:
–20°C to +40°C
– Avoid the build-up of static electricity. The Ex
battery pack housing is connected via the shield
of the connecting cable to the grounded housing
of the equipment attached to the battery.
– Handle the equipment with care as required by the IP
protection ratings (IP65/IP23)
– Follow the cleaning instructions included with the equip-
ment.
– Do not open the external rechargeable Ex battery pack
in hazardous areas/locations! The threaded sealing cap
must always be securely fastened over the electronics box
input for the charging connector when the equipment is
used in hazardous areas/locations.
– Avoid deep discharging (the red LED will start
flashing).
– The external rechargeable Ex battery pack must
be dusted off regularly when used in hazardous areas
with potentially explosive dust atmospheres.
In Zone 20, for example, a maximum dust layer
of only 5 mm is permissible.

8Operating Instructions | Betriebsanleitung Operating Instructions | Betriebsanleitung 9
Warning and Safety Information Warning and Safety Information
– The external rechargeable Ex battery pack must be
installed so that the handle faces upwards and the
rubber feet provide enough space between the base
and the surface on which the external rechargeable
Ex battery pack stands (for ventilation). The exter-
nal rechargeable Ex-battery must be freestanding
to ensure that air can circulate and heat can escape.
– Avoid exposing the external rechargeable Ex battery
pack to direct sunlight or other heat sources.
– The external rechargeable Ex battery pack may also
be used outside buildings. Take the appropriate
measures for grounding and protecting the equip-
ment against heat and cold.
– Use only original Minebea Intec spare parts. This
includes the special rechargeable batteries with spe-
cially potted connections inside the equipment.
– Use only original Minebea Intec accessories.
– Use only cabling and extensions approved by
Minebea Intec .
– The connecting cable is made of PVC. All cables
used inside have a rubber casing. The gasket on the
electronics box is made of polyethylene foam.
Silicone rubber is used for all potting (encapsula-
tion). The batteries consist of ABS plastic. Chemi-
cals that corrode these materials must be kept away
from them.
– Have the external rechargeable Ex battery pack
inspected at appropriate intervals for correct
functioning and safety by a trained technician;
for instance: check for damage to the connecting
cable and for dust build-up inside the Ex battery
pack, particularly on the valves.
– Observe your country’s national laws and regula-
tions. Ask your local Minebea Intec office or dealer
for information on the legal regulations applicable
in your country.
– Any work on the equipment may be carried out
only by trained and authorized Minebea Intec ser-
vice technicians. Any tampering will result in forfei-
ture of the approval for use in the stated hazardous
area/location and of all claims under the manu-
facturer’s warranty.

Operating Instructions | Betriebsanleitung 9
Warning and Safety Information
Notes on Storing the Battery Pack
– Store only completely charged Ex battery packs.
– Storage temperature range: –40°C to +50°C
(-40°F to +122°F)
– If the external rechargeable Ex battery pack
is stored at a higher temperature, it must be
recharged before 2 years have elapsed; e.g.:
At 30°C: recharge after 12 months
At 40°C: recharge after 6 months
Charging the Ex Battery Pack
The external rechargeable Ex battery pack must be
charged outside the hazardous area, using only the
YRB02LD battery charger.
§Before using the battery pack for the first time,
charge it for 8 hours.
$Recharge the battery pack after each use, regardless
of the amount of charge used.
– The battery pack must be charged in a dry environ-
ment at an ambient temperature of 15°C to 30°C
(59°F to 86°F).
– In the hazardous area, the battery charger con-
nector port must be sealed at all times with the
threaded cap provided.
Prior to Initial Operation
Read these instructions carefully before putting
the equipment into operation for the first time.
They contain information on using the Ex bat-
tery pack safely and extending its service life. Keep
these instructions in a safe place.

10 Operating Instructions | Betriebsanleitung Operating Instructions | Betriebsanleitung 11
Getting Started Getting Started
Getting Started
Unpacking the Unit and Equipment Supplied
Remove all components from the packaging and
ensure that they are complete:
(Battery charger and power cord are accessories and
must be ordered separately). If you dispose of the
packaging material, please do so in accordance with
the national regulations in your country or retain all
the packaging material in case you need to ship the
equipment to your local Minebea Intec office or deal-
er for service reasons.
Function Test
The level of charge in the battery when it is first
removed from the packaging is not precisely defined.
However, the capacity is sufficient for
an initial function test. Press the ON key. After approx.
1 min the green LED will start flashing.
Charging the Battery Pack
Once the function test has been completed, charge the
external rechargeable Ex battery pack using
the YRB02LD battery charger for at least 8 h before
starting up operations.
For the battery charger, please observe the
following:
– Use the charger only in a dry environment.
– Only charge the battery pack in an area with
sufficient ventilation.
!Always disconnect the battery pack and charger from
AC power when you are not using them or
for cleaning or maintenance purposes.
!Do not pull on the cord to remove the plug from
the outlet.
– Protect the equipment from grease, oil, aggressive
cleaning agents and solvents, and mechanical stress.
!If there is visible damage to the housing or cord,
or if the unit no longer functions properly:
– Disconnect the unit from AC power.
– Lock it in a safe place to prevent it from being used for
the time being.
– Only trained and authorized Minebea Intec service
technicians should carry out safety tests on the unit.

Operating Instructions | Betriebsanleitung 11
Getting Started
4
1
2
3
To charge the Ex battery pack, unscrew the threaded sealing cap (4) and insert the
female charging connector (1). Then plug the power cord into the YRB02LD battery
charger (2) and insert the plug of the power cord (3) into an electrical outlet. If the plug
of the power cord does not fit into the outlet installed at your facility, please ask your
Minebea Intec office or dealer about different plug options or order a different power
cord directly (for more information on power cords, see “Spare Parts and Accessories”).
Leave the Ex battery pack turned off while charging.

12 Operating Instructions | Betriebsanleitung Operating Instructions | Betriebsanleitung 13
Getting Started Getting Started
The amount of charge in the external rechargeable Ex
battery pack is indicated by an LED on the YRB02LD
charger:
Steady light - Charging
Slowly flashing LED - Charge received
Rapidly flashing LED - Batteries are deeply
discharged

Operating Instructions | Betriebsanleitung 13
Getting Started
Connecting an Explosion-protected Weighing System
For operating explosion-protected (Ex) Minebea Intec
equipment without the use of AC power (example: CAIXS2
explosion-protected indicator).
Connect the Minebea Intec Ex equipment to the exter-
nal rechargeable Ex battery pack with the permanently
attached connecting cable (3). An adapter cable (1) may be
necessary. Tightly fasten this connection (2) so that the IP
protection rating is ensured.
In hazardous areas/locations, the threaded sealing cap (4)
of the charging plug for the battery charger must always be
securely fastened in place!
Switch on the external rechargeable Ex battery pack
by briefly pressing the ON key (2). After a few seconds, the
green LED (5) will start flashing.
We recommend that you operate the connected Ex
battery pack in the AUTO-ON mode. This way, the ON
mode on the Ex battery pack is signaled, once the ON key is
pressed on the pack, when the LCD (and its
backlighting, if applicable) of the connected unit is
switched on.
Press the OFF key (3) to switch off the external recharge-
able Ex battery pack. The red LED (6) will flash very briefly.
If the rechargeable batteries are almost completely
discharged, the red LED (6) will light up. If you allow the
battery pack to reach the deep discharge threshold, it will
shut off automatically and the red LED will
extinguish. If the external rechargeable Ex battery pack is
switched on in a deeply discharged condition, it will switch
off automatically as soon as the ON key (2) is released.
1
2
3
2
3
4
5
6

14 Operating Instructions | Betriebsanleitung Operating Instructions | Betriebsanleitung 15
Operation Operation
Operation
Switching Connected Equipment On and Off
The connected Minebea Intec scale is turned on or
switched to standby by pressing the ON/Standby key, just
as if it were connected to AC power.
Caution: Even if the scale is in standby mode, energy
is still drawn from the external rechargeable Ex battery
pack. Turn off the connected equipment directly at the
Ex battery pack to save battery power during longer
interruptions. Please allow the connected equipment
to warm up when you switch it back on if it has been
switched off for an extended period. The warm-up
time required to ensure accurate weighing results is indi-
cated in the instruction manual for the particular
Minebea Intec equipment.
Battery Level
The external rechargeable Ex battery pack features
an electronic monitoring switch. A red LED alerts you
when the power drops to a defined level because of the
amount of energy drawn. If the red LED starts flash-
ing, finish the weighing procedure in progress first, then
completely recharge the Ex battery pack.
If the Minebea Intec equipment is unattended and the
user therefore does not take action when the LED lights
up, the battery will continue to discharge until its elec-
tronic circuitry recognizes a second voltage threshold
(deep discharge threshold) and automatically disconnects
the equipment from the battery pack. This prevents the
battery from being drained to the point that it can no
longer be recharged.
Important Note: If the low charge threshold is reached
inadvertently, the connected Minebea Intec equipment
will switch off immediately when you press the ON key
on the external rechargeable Ex battery pack.
At this point, recharge the battery immediately!
Disposing of Used Equipment
The battery pack contains environmentally toxic
substances (lead) and, therefore, cannot be disposed
of with standard household waste. Return used or defec-
tive battery packs to your Minebea Intec dealer or
dispose of them in accordance with the national environ-
mental regulations of your country (i.e., recycling).

Operating Instructions | Betriebsanleitung 15
Operation
Maintenance and Cleaning
If the unit does not function properly or errors occur,
notify your supplier or your local Minebea Intec service
center directly.
!Use a cloth that has been wet with a mild detergent
(soap) to clean the equipment. Always be sure to
unplug the unit from AC power before cleaning it!
Make sure that no liquid enters the unit during clean-
ing.
Important Note on Using the Charge
in the Battery Pack
– The capacity of the battery (6.5 Ah) has been
selected to allow for an operating time of between 10
and 30 hours depending on the equipment it is power-
ing. If the ambient temperature is lower than +15°C,
the available capacity (operating time) is reduced to
approx. 70% at –20°C.
– The external rechargeable Ex battery pack has a built-in
safety circuit that automatically switches off the equip-
ment once a low voltage level is reached in the battery
pack.
– To ensure a long life for the external rechargeable Ex
battery pack, switch it off if it is not going to
be used for an extended period and recharge it imme-
diately.
– While working with the connected equipment,
avoid repeated interruptions during which the
external rechargeable Ex battery pack is not recharged.
Since the integrated batteries regenerate under unfa-
vorable conditions during this time, the capacity con-
tinues to be used without allowing
the safety circuit to be activated (if the battery is deep
discharged, it will no longer recharge).
Storage and Shipping Conditions
– Store only completely charged Ex battery packs!
– Storage temperature range: -40°C to +50°C
– The packaging is designed to protect the unit from
damage when dropped from a height of 80 cm.
– Do not expose the unit to extreme temperatures, mois-
ture, shocks or vibration.

16 Operating Instructions | Betriebsanleitung Operating Instructions | Betriebsanleitung 17
Specifications Accessories
Specifications
Model YRB02-X
Output voltage Vdc 4 intrinsically safe circuits
Charging time, average h 6
Capacity Ah 6.5
Battery life 200 charge/discharge cycles (related to 100%
use of the battery charge in each case)
Max. storage period at 20°C 2 years, completely charged (At 30°C
recharge after 12 months, at 40°C after 6
months)
Allowable relative humidity % 25 to 85, non-condensing
Dimensions mm 180+180 (footprint); height: 125
(including rubber feet, without handle)
Weight, approx. kg 8
Length of connecting cable m 2

Operating Instructions | Betriebsanleitung 17
Accessories
Accessories
Item Order no.
Wall mount for YRB02-X: YBPH01
Connecting cable, length 0.3 m, YCC02-XRBEX
for connecting Minebea Intec
explosion-protected scales of the
Economy series (e.g. (EB.....-IX)
Battery charger (model FW7305/24A) YRB02LD
with plug adapter for power cord
Input:
100 – 240 V~/50 – 60 Hz/550 mA/36W
Output:
24 Vdc/1.0 A
Power Cords for Battery Charger
Power cord for Europe, length 1.8 m 6971953
Power cord for USA,
length approx. 6 ft.; 1.8 m 6971954
Power cord for the U.K., length 1.8 m 6971955
Power cord for Australia, length 1.8 m 6971956
Power cord for South Africa, length 1.8 m 6971957
Power cord for India, length 1.8 m 6971964

18 Operating Instructions | Betriebsanleitung Operating Instructions | Betriebsanleitung 19
certificate certificate

Operating Instructions | Betriebsanleitung 19
certificate

20 Operating Instructions | Betriebsanleitung Operating Instructions | Betriebsanleitung 21