Introduction of Mettler Toledo AJB series multi-purpose precision junction box

1、 Introduction to Mettler Toledo AJB Series Multipurpose Precision Junction Box

　　Mettler ToledoThe AJB junction box is a multi-purpose precision junction box that can quickly and safely integrate multiple analog weighing sensors into any machine used for filling, feeding, batching, sorting, and weight inspection. Mettler Toledo junction boxes are used in food, pharmaceutical, and chemical applications. They come in various models, depending on the application and environment, to meet the requirements of OEM machine manufacturers, system integrators, and end users.

Tank scales, silo scales, hopper scales, conveyor scales, platform scales, and platform scales using simulated weighing technology typically include multipleLoad Cell. It is obvious that the performance of such scales depends on the quality of the weighing sensors. However, many scale designers underestimate the importance of a junction box, which is a necessary component for assembling multiple load cell outputs together and connecting them to the weighing terminal.

A junction box is an analog component in an analog circuit, in which the voltage appears to be even 0.1 amps; Mu; The changes in V will also have significant impacts. Improperly designed junction boxes can reduce the accuracy and performance of analog scales. These junction boxes are very sensitive to temperature changes, have low long-term stability, and have poor ability to correct angular load errors. New junction boxes such as Mettler Toledo's AJB precision junction box series have inherent characteristics that are not affected by these factors, while shortening installation time and improving the ergonomics of on-site services.

There are multiple models of Mettler Toledo AJB series precision junction boxes, each with different hole positions, protection levels, accuracy, appearance dimensions, and usage locations. In addition, there are explosion-proof and waterproof types to choose from, meeting various special situations in various industries.

2、 Characteristics and advantages of the Mettler Toledo AJB junction box

1. Fault free long-term performance

The precision junction box combines IP67 or IP69K stainless steel casing with electrical components with excellent accuracy and stability. The shell material is 304 (1.4301) or 316 (1.4401).

2. Discrete resistors ensure long-term stability

Compared to junction boxes that use adjustable potentiometers, precision discrete resistors can be used to provide higher resistance to temperature and humidity. The scale equipped with a precision junction box exhibits excellent long-term stability.

3. Rotary switch for easy scale calibration

By rotating the switch to select a precision resistor group, angle errors can be easily corrected, which has the same ease of use as adjustable potentiometers, but does not have their inherent sensitivity and instability.

4. CalFree - Calibration without weights

The precision junction box supports the CalFree calibration system without weights. These junction boxes can be set to ensure no signal attenuation, thereby maintaining effective factory calibration of the weighing sensor.

3、 The relevant models and model characteristics of the Mettler Toledo AJB junction box

AJB-015, 5-hole, analog junction box, stainless steel casing, small appearance size, ground scale, and measuring range usually within 3t

　　AJB-003/AJB-0053 hole, 5 hole analog junction box, stainless steel shell, larger appearance size, car scale, large range

AJB-006/AJB-007, 6-hole, 7-hole analog junction box, stainless steel shell, larger appearance size, car scale, large range

HP-AJB540S, 5-hole, high-precision junction box, demarcation-free IP69K (supports 4 or less sensors)

HP-AJB541M, 6-hole, high-precision junction box, demarcation-free IP69K (supports more than 4 sensors)

AJB-005-F, 5-hole, explosion-proof waterproof junction box

AJB-007-F, 7-hole, explosion-proof waterproof junction box

AJB-005FN, 5-hole, analog junction box, IP68, supporting calibration free function

AJB-007FN, 7-hole, analog junction box, IP68, supporting calibration free function