ATEX Junction Boxes
Multiple Load Cell Systems
For EX Connection and Corner Adjustment
Easy Connection
All connections are made to screw
type terminal blocks thus no soldering
is required. The corner adjustment by
precise trim pots is an easy and reliable way to reduce the corner error to a
practical minimum.
Stainless Steel Housing
All junction boxes are made from
stainless steel (304 / 1.4301) and
provide the best reliability even in harsh
industrial environments. Mounting plates allow easy attachment to wall or
ground.
High Protection Class
The high protection class of all junction
boxes guarantees a long and reliable
lifetime even in the most demanding
applications in the food and pharmaceutical industries.
ATEX Junction Boxes
All junction boxes feature:
• ATEX approval
• Easy connection to screw type terminal blocks
• Quick corner adjustment by trim pots
• Stainless steel enclosure
• IP65 protection class
• Mounting brackets
The METTLER TOLEDO analogue junction boxes are
suitable for quick and simple connection of multiple
load cells to weighing electronics. The integrated trim
pots allow one to minimize corner error by simply
using a screw driver - no soldering or seperate resistors necessary. The stainless steel housing provides
best reliability.
ATEX Junction Boxes Specificatons
Parameter
unit of measure
Specification
Type Analogue Junction Boxes for Hazardous Area
Model No:
TB100772-5
TB100771-6
Order No: (CIMF No.)
61038201
61038197
No of load cells
2-4
2-4
No of cable entries
5
6
Expension possible, max. no of load cells for 1st box
yes, 3
yes, 4
Corner adjustment
4x Trim Pots
4x Trim Pots
Suitable
no
no
Call Free
Min. Indicator Input Impedance
MΩ
n/a
n/a
Load Cell
mm (in)
4.8-6.4 (0.19-0.25)
4.8-6.4 (0.19-0.25)
Cable Diameter Range
Home Run
mm (in)
6.4-9.5 (0.24-0.48)
6.4-9.5 (0.24-0.48)
Load Cell
mm2 (AWG)
≤ 3 (12)
Wire gauge
Home Run
mm2 (AWG)
≤ 3 (12)
Load Cell
4 wire
Number of conductors
Home Run
4 or 6 wire
4 or 6 wire
Auxiliary 2)
Earthing
separate bolt
via mounting bolt
Sealing
sealing wire or sticker
Operating
–20 ~ +65 (–4 ~ +150)
Temperature Range
Safe Storage
–40 ~ +80 (–40 ~ +176)
Number , Cat 2
KEMA 03ATEX1396X
Number, Cat 3
KEMA 03ATEX1397X
II 2 G Ex ia IIC T4
ATEX Approval 1)
II 2 D Ex ibD 21 IP65 T70°C...T90°C
Rating
II 3 G Ex nA II T4 II 3 G Ex nL IIC T4
II 3 D Ex tD A22 IP6X T70°C...T90°C
Entity Parameters
Ui/Un=30V, Ii=1A, Ci=0, Li=0
Recommended
V AC/DC
10
Excitation Voltage
Maximum
V AC/DC
20
Insulation Resistance @50VDC
MΩ
> 5000
Breakdown Voltage
V AC
> 500
Housing
stainless steel
Material
Cable entry fitting
zinc plated steel plastic
Type
rubber gasket
Protection
IP Rating
IP 65
Weight
kg (lb)
3.8 (8.4)
1.7 (3.8)
1) See
certificate for complete information
between J-Boxes
2) Cable
2
METTLER TOLEDO
©09/2009
Data Sheet ATEX Junction Boxes
Dimensional Drawings mm [inch]
Large 5 Hole ATEX
255 [10.0]
LY
125 [4.9]
235.0 [9.25]
10.0 [0.39]
15.9 [0.63]
ATEX Version only
See Note
40.1
[1.58]
5932 [2.33]
50.8 [2.00]
9.5 [0.38]
143.7 [5.66]
34.9 [1.38]
Ø 12.7 [Ø 0.50]
12.7 [ 0.50]
2 Places
2 Places
Ø 6.4 [Ø 0.25]
6.4
4 Places
A
63.5
[2.50]
B
82.6 [3.25]
C
28.6 [1.12]
D
[1.75]with 1/2“-14 NPT thread
For threaded44.5
conduit
34.9 [1.38]
219.9 [8.66]
17.5 [0.69]
28.6 [1.12]
2 Hole plugs supplied to close any unused cable entry fittings.
(255 [10.0])
102 [4.0] TYP
79 [3.1] TYP
Standard 6 Hole ATEX
305 [12.0]
LC2
5.9 [0.63]
INPUT
AUX
47 [1.9]
127 [5.0] TYP
104 [4.1] TYP
LC3
LC1
279.4 [11.00]
12.7 [0.50]
41.3 [1.63]
53.2 [2.10]
D
LC2
7.6 [1.88]
7.6 [1.88]
LC4
E
AUX
11.2 [0.44] TYP
LC1
76.2 [3.00]
INPUT
41.1 [1.62]
130.9 [5.15]
A
LC4
159 [6.3]
B
LC3
C
F
7.9 [0.31] TYP
15.2 [0.60]
15.2 [.060]
FOR ATEX VERSION ONLY
55.2 [2.17]
194.4 [7.65]
METTLER TOLEDO
Data Sheet ATEX Junction Boxes
©09/2009
3
ATEX Junction Boxes
Order Information
Model
TB100772-5
TB100771-6
Description
Large 5 Hole ATEX, stainless steel, 4 load cells
Standard 6 Hole ATEX, stainless steel, 4 load cells
Item No.
61038201
61038197
Full Connectivity
METTLER TOLEDO supplies various data
communication interfaces that enable our
sensors and instruments to communicate
with your PLC, MES, or ERP systems.
Tailored Services
Our extensive service network is among the
best in the world and ensures maximum
availability and service life of your product.
Weighing Electronics
METTLER TOLEDO offers a complete family of electronics from simple
weighing to application solutions for filling, stock control, batching,
formulation, counting, and checkweighing.
Quality certificate ISO 9001
Environment certificate ISO 14001
Subject to technical changes.
© 09/2009 Mettler-Toledo AG
Printed in Switzerland MTSI 44099927
MarCom Industrial
www.mt.com
Visit for more information