JB02 Junction box user manual
Zemic Europe B.V.
T: +31 76 50 39480
Leerlooierstraat 8
Nr. 2015.10 JB02 Junction box user manual Rev0
F: +31 76 50 39481
4871 EN Etten-Leur
The Netherlands
1/3
www.zemic.nl
Content
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Specifications
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Installation guidelines
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Dimensions
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Mounting
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Electrical connections
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Calibration
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I Corner adjustment
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II Span adjustment
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III Trouble-shooting
Specifications
Die-cast aluminium housing
Plastic cable glands
Available for 2, 3 or 4 load cells connection
Excitation trim (28 turns, 5M Ohm)
4 wire load cell connection
4 wire output connection
Environmental protection IP65
Screw-clamp terminals and soldering connections
Installation guidelines
The junction box model JB02 provides a low cost answer for a variety of weighing applications. Excitation
trim makes it fast and easy to adjust the load cell outputs.
Model JB02-2 offers connection and individual adjustment for up to 2 load cells. Models JB02-3 and JB02-
4 offer connection and sectional adjustment for 3 and 4 load cells respectively and offer the user the
possibility to connect further junction boxes where required. Cable glands that are not used need to be
closed with suitable plugs.
Model JB02 has a 5-way terminal strip for each load cell, enabling connection of 4 and 6-wire load cells,
with screen. Connection to the instrument is achieved via a 5-way terminal strip and is also possible by
soldering points. Terminal strips are screw-operated cage clamp design.
To overcome disturbance, make sure not to create ground-loops whilst connecting the cable screens.
Confirm ( via the load cell data sheet) whether or not the load cell has its screen connected to its body.
Trimming of signal output is accomplished using 28-turn trim potentiometers. The operating temperature
range of the Junction Box is -40°C to 85°C.
Dimensions
Width 65mm
Height 38mm
Length 135mm
(dimensions without cable glands)\
