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Design Function Integration Junction Boxes in Electrical Signal Systems

Design Function Integration Junction Boxes in Electrical Signal Systems

Design Function Integration Junction Boxes in Electrical Signal Systems
Design Function Integration Junction Boxes in Electrical Signal Systems
Categories Mettler Toledo Load Cell
Brand Name: Mettler Toledo
Model Number: Junction Boxes
Place of Origin: China
MOQ: 1 set
Price: Negotiation
Supply Ability: 2000 set per month
Delivery Time: 10-30days
Packaging Details: Caron box
Product: Mettler Toledo Load Cell
Advantages: discrete resistors provide high accuracy and long-term connection
Hazardous Approvals: ATEX, FM, cFM
Capacity range: SLD425/SLD525 load cells is 1,000 lb to 75,000 lb
Material: rugged 316 stainless steel and FDA-certified stainless steel
Material(optional): polyamide (Nylon), carbon steel (zinc plated), or stainless steel
Features: long-term stability and easy installation features
IP: IP66 / IP67 (Standard)
Conduit Openings: Multiple (e.g., 4x, 6x) with NPT or PG threads.
Input Channels: 4, 6, 8, 10 (Typical)
Terminals: Screw Clamp (Standard) or Solder Tabs.
Signal Shielding: Dedicated Shield Terminal (Earth Ground).
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Design Function Integration Junction Boxes in Electrical Signal Systems

Design, Function, Integration of Junction Boxes in Electrical Signal Systems

1.Quickly, Simply Connect Multiple Analog Load Cells to a Weighing Indicator

The junction box enables the quick and safe integration of multiple analog load cells into any machine for weighing. METTLER TOLEDO offers precision junction boxes for hazardous areas with ATEX and IECEx certification and for food and pharmaceutical applications where EHEDG design rules are followed and with GMP and NSF certification.

2.Critical Considerations for Accuracy

The junction box is an analog component in an analog circuit where voltage changes of as little as 0.1 µV can be very significant. The accuracy and performance of analog scales can be undermined by poorly designed junction boxes, which can be sensitive to temperature changes, have poor long-term stability, and may be unable to correct corner-load errors. A modern junction box such as METTLER TOLEDO's precision junction box line is inherently robust to these effects while reducing installation time and improving ergonomics for maintenance teams.

3.Durable Construction for Continued Performance

Precision junction boxes combine IP67 or IP69K stainless-steel enclosures with electrical components that deliver high accuracy and stability. Housing material is available in either 304 (1.4301) or 316 (1.4401) stainless steel.

4.Discrete Resistors and Rotary Switches for Stability

In contrast to junction boxes that use trim-pots, precision discrete resistors provide much better immunity to the effects of temperature and humidity. Additionally, rotary switches select arrays of precision resistors for easy correction of corner errors, offering the same ease of use provided by trim-pots but without their inherent sensitivities. Scales equipped with precision junction boxes exhibit far superior long-term stability.


Specifications:


ParameterSpecification
Materialrugged 316 stainless steel and FDA-certified stainless steel
Material(optional)polyamide (Nylon), carbon steel (zinc plated), or stainless steel
Capacity rangeSLD425/SLD525 load cells is 1,000 lb to 75,000 lb
Advantagesdiscrete resistors provide high accuracy and long-term connection
Hazardous ApprovalsATEX, FM, cFM
Featureslong-term stability and easy installation features
IPIP66 / IP67 (Standard)
Conduit OpeningsMultiple (e.g., 4x, 6x) with NPT or PG threads.
Input Channels4, 6, 8, 10 (Typical)
Excitation Voltage (Vex)Matched to load cell system (Typically 5-15 VDC).
Input/Output ResistanceMatched to system impedance.
Cable Length CompensationYes, via potentiometers (pots) for each channel.

FAQ:

1.What is a load cell junction box?

A load cell junction box is an enclosure that is designed specifically for use with load cells, which are devices that are used to measure weight or force. The load cell junction box is typically used to connect multiple load cells together, in order to create a weighing system that is able to accurately measure the weight of an object.

2.How do load cell junction boxes affect the performance of a scale?

The load cell junction box is critical to the performance of weighing scales that use more than one analog load cell. It affects accuracy due to temperature effects, long-term stability, and corner-load adjustment. Mettler Toledo load cell junction boxes provide unique long-term stability and easy installation features which ensures a stable load cell junction box connection.


3.How can a junction box affect scale accuracy?

Load cell junction boxes are often underestimated in terms of their accuracy impact. Load cell junction boxes combine the best of two worlds: discrete resistors provide high accuracy and long-term connection, while rotary switches join them to a simple user interface similar to trim pots.

4.What material are junction boxes made of?

Load cell junction boxes by load cell suppliers like METTLER TOLEDO are made of very rugged 316 stainless steel and FDA-certified stainless steel. The load cell junction box cable entry fitting is available with polyamide (Nylon), carbon steel (zinc plated), or stainless steel, which ensures that the load cell junction boxes are available to meet different budgets.

5.How does a load cell summing box work?

Load cell summing boxes or load cell junction boxes connect numerous load cells to one signal which is then read by the indicator. These load cell junction boxes are used in scales with more than one load cell. Actually, the name summing box is misleading. A more appropriate name would be an averaging box.


Product Tags:

junction boxes for electrical systems

  

load cell junction box integration

  

Mettler Toledo signal junction boxes

  
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Design Function Integration Junction Boxes in Electrical Signal Systems

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