Load Cell Amplifiers

18 July 2022

As well as offering Australia's most comprehensive range of quality load cells, ADM also offers a considered range of load cell amplifiers.We specialise in offering complete weight and force measurement solutions.

Load Cell Amplifiers are also referred to as load cell transmitters, load cell converters, or signal conditioners.

Load cell amplifiers convert the information received from a strain gauge circuit, which is bonded to the firm surface of a load cell, into an output signal that can be recognised by a load cell display, or PLC.

The strain gauge circuit is a simple arrangement of resistors, which are wired in a configuration known as a Wheatstone bridge. Being simple resistors, a load cell is a completely passive sensor that requires an external excitation voltage (from the load cell amplifier). The unit of measurement read back from the load cell is mV/V. The mV value read is directly proportional to the load force being applied, as well as the excitation voltage supplied by the load cell amplifier (typically 10VDC).

Because a mV/V reading value is not much use to an industrial controller or display, the purpose of the load cell amplifier is to retransmit this value as a more useful unit of measurement such as 4-20mA, 0-10V or even a communication protocol.

ADM offers a considered range of industrial load cell amplifiers.

Action Instruments G448 Load Cell Amplifier

Our range of load cell amplifiers includes the Action Instruments G448.

Action Instruments Australia_2 — Action Instrument G448 Load Cell Amplifier

This is an ultra slim DIN rail mount, bridge (or strain-gauge) input signal conditioner with 1800VDC isolation between input, output and power.

The field configurable input and output gives you flexible, wide ranging capability from 0.5mV/V to over 50mV/V.

By using the wide ranging, precision zero and span pots offset and gain can be adjusted by up 50 50% within each of the 11 switch selectable input ranges.

The output is user selectable with the following options:

0-5V
0-10V,
0-1mA,
0-20mA
4-20mA

This flexibility, combined with the adjustable (1 to 10VDC) bridge excitation source, gives you a reliable, accurate instrument to isolate and condition virtually any bridge or strain-gage input.

NCT Load Cell Transmitter

The Curiotec NCT provides you with a complete load cell signal conditioner in a neat looking panel meter style housing.

Load cell transmitter NCT — Curiotec NCT Load Cell Amplifier

There are two output options available: Either a 1-10V, or 4-20mA output.

It provides either a precise 5V, or 10V excitation voltage.

If you are looking for load cells, load cell amplifiers or a complete solution please do not hesitate to contact ADM Instrument Engineering with your requirements. A member of our friendly team will gladly assist.