Load cell junction box for analog load cell systems ¦ Long-term stability guaranteed ¦ METTLER TOLEDO
Load cell junction box

Load Cell Junction Box

Quick and simple connection

 

Load Cell Junction Box Solutions Across Your Value Chain

METTLER TOLEDO load cells and junction boxes enable the quick and safe integration for weighing into any machine for filling, dosing, batching, ...

METTLER TOLEDO load cells and junction boxes enable the quick and safe integration for weighing into any machine for filling, dosing, batching, sorting by weight and check weighing. METTLER TOLEDO load cells are used in food, pharmaceutical and chemical applications.  They are available in various versions depending on the application and environment to meet requirements of OEM machine manufacturers, system integrators and end-users. A wide range of accessories are available for load cells including junction boxes, base plates and load introductions coping with shock and vibration.  

How do junction boxes affect the performance of a scale?
The 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 Precision Junction Boxes provide unique long term stability and easy installation features. Using precision discrete resistors with tight temperature specifications avoid the weaknesses of trim potentiometers like instable contacts over time. The precise resistors are operated by means of gold plated rotary dip switches for making adjustments easy. All Precision Junction Boxes support weightless calibration CalFree.

How can a junction box affect scale accuracy?
Junction boxes are often underestimated in terms of their accuracy impact. Precision junction boxes combine the best of two worlds. Discrete resistors provide high accuracy and long term stability while rotary switches combine them to a simple user interface similar to trim pots.

What material are junction boxes made of?
At METTLER TOLEDO, All junction boxes are made from stainless steel and provide best reliability even in harsh industrial environments. Version in IP65 and IP69K are available. All components for shift adjustment are on board, no soldering or additional resistors are needed. Rotary switches can be operated like trim pots without their trade-offs in terms of stability and temperature impact.

How does a load cell summing box work?
Load cell summing boxes connect numerous load cells to one signal which is then read by the terminal. These 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. These boxes do not add the single load cell to a sum but provide the average of all load cell signals (e.g. a box connected to 4x 50kg 2mV/V LC does not provide 8 mV/V at 200kg, but 2mV/V at 200kg).   


 
AJB Multi-Purpose Junction Boxes
AJB941M Hygienic Junction Boxes

AJB Multi-Purpose Junction Boxes

AJB941M Hygienic Junction Boxes

METTLER TOLEDO Precision Junction Boxes allow quick and easy summing of multiple analog load cells. Integrated shift adjustment allows corner errors to be minimized.
METTLER TOLEDO's Precision Junction Boxes allow quick and easy summing of multiple analog load cells. The integrated shift adjustment allows corner errors to be minimized.
Reliable
Stainless Steel Housing
Highest Corrosion Resistance
Available in 316 (1.4401)
Long-Term Stability
Discrete Precision Resistors
CalFree Compatible
Weightless Calibration
Hazardous Approvals
ATEX, IECEx Versions
Reliable
IP69K Stainless Steel Housing
Compliant with EHEDG rules
GMP & NSF Certified
Stable
Discrete Precision Resistors
CalFree Compatible
Weightless calibration
Easy Cleaning
Self-Draining
AJB Multi-Purpose Junction Boxes

METTLER TOLEDO Precision Junction Boxes allow quick and easy summing of multiple analog load cells. Integrated shift adjustment allows corner errors to be minimized.

Reliable
Stainless Steel Housing
Highest Corrosion Resistance
Available in 316 (1.4401)
Long-Term Stability
Discrete Precision Resistors
CalFree Compatible
Weightless Calibration
Hazardous Approvals
ATEX, IECEx Versions
AJB941M Hygienic Junction Boxes

METTLER TOLEDO's Precision Junction Boxes allow quick and easy summing of multiple analog load cells. The integrated shift adjustment allows corner errors to be minimized.

Reliable
IP69K Stainless Steel Housing
Compliant with EHEDG rules
GMP & NSF Certified
Stable
Discrete Precision Resistors
CalFree Compatible
Weightless calibration
Easy Cleaning
Self-Draining

Services

Full service offering around weighing

800 METTLER (800 638 8537)
Call Service

Explore our Services - Tailored to Fit your Equipment

We support and service your measurement equipment through its entire life-cycle, from installation to preventive maintenance and calibration to equipment repair.

Publications

Literature to Expand your Knowledge

Weight Components mg to hundreds of tons
Industrial Catalog 2019/20
Hazardous Poster
PFD774 PowerDeck Floor Scale
Contamination-free Terminal Keypad
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