LCD20 Loadcell Amplifier

The LCD20 intelligent loadcell amplifier is a compact, DIN rail mounted microprocessor based unit for use with strain gauge bridge loadcells in force measuring applications.

All set up functions are via either the hand held programming module or a computer depending on the option chosen. Free toolkit software is available that can be run on a computer to carry out all the set-up functions and is able to log data from the LCD20. The computer is connected via a PGM1 programming cable. Data logging intervals can be set at 13ms to 1hr. The logging duration can be set to 9999 readings or 999 hours. The exact limits on the logging function are affected by the sampling rate of the LCD20 and the computer used for logging.

Two analogue outputs are available, 4 to 20mA and 0 to 10V. The current output operates in source mode with the amplifier supplying the loop power. The analogue output is uni-polar so if a bi-directional loadcell is used it is scaled so that the mid point of the analogue output is equal to zero load. This will be 12mA or 5V.

If the LCD20 is supplied with a loadcell it will normally be calibrated to read the loadcell output in the same engineering units as the loadcell calibration. A traceable system certificate will be supplied for the amplifier and loadcell combination. Alternative calibrations are possible; please consult our engineering department to discuss your requirements. The full manual is available for download from our website if you require more detail on any of the items in this data-sheet.

Alternative calibrations are possible; please consult our engineering department to discuss your requirements.

CE – This instrumentation product complies with the requirements of the European EMC directive.

All set up functions are via either the hand held programming module or a computer depending on the option chosen. Free toolkit software is available that can be run on a computer to carry out all the set-up functions and is able to log data from the LCD20. The computer is connected via a PGM1 programming cable. Data logging intervals can be set at 13ms to 1hr. The logging duration can be set to 9999 readings or 999 hours. The exact limits on the logging function are affected by the sampling rate of the LCD20 and the computer used for logging.

Two analogue outputs are available, 4 to 20mA and 0 to 10V. The current output operates in source mode with the amplifier supplying the loop power. The analogue output is uni-polar so if a bi-directional loadcell is used it is scaled so that the mid point of the analogue output is equal to zero load. This will be 12mA or 5V.

If the LCD20 is supplied with a loadcell it will normally be calibrated to read the loadcell output in the same engineering units as the loadcell calibration. A traceable system certificate will be supplied for the amplifier and loadcell combination. Alternative calibrations are possible; please consult our engineering department to discuss your requirements. The full manual is available for download from our website if you require more detail on any of the items in this data-sheet.

Alternative calibrations are possible; please consult our engineering department to discuss your requirements.

CE – This instrumentation product complies with the requirements of the European EMC directive.

Specification

ParameterValueUnit
Loadcell Input
Bridge Excitation4.75 (Min) / 5 (Typical) / 5.25 (Max)Vdc
Loadcell Excitation System6 wire (4 wire loadcells can be used with links)
Bridge Impedance85Ohms
Bridge Sensitivity Range 1±3.7mV/V
Bridge Sensitivity Range 2±7.8mV/V
Factory Calibration of sensitivity±0.05%FS
Offset Temperature Stability (2.5mV/V FS)±2ppm/°C
Gain Temperature Stability±4ppm/°C
Non-linearity±10ppm FR
Internal Resolution1 MillionCounts/Divisions
Resolution at 10Hz sampling180,000Counts/Divisions
Resolution at 80Hz sampling130,000Counts/Divisions
Analogue Output
Current Output4 (Min) / 20 (Max)mA
Loop resistance1kΩ
Voltage Output0 (Min) / 10 (Max)V
Load resistance5kΩ
Bandwidth -3dB8.5Hz
Phase Delay – Step Change26ms
Phase Delay – Sine Wave55ms
Rise and fall time (10 to 90%)40ms
Rise and fall time (1 to 99%)85ms
Zero stability0.005 (Typical) / 0.01 (Max)%FS/°C
Gain stability0.005 (Typical) / 0.01 (Max)%FS/°C
Resolution8,000Counts/Divisions
Power, Options and Environmental
Power Supply9 (Min) / 32 (Max)Vdc
Power3W
Set points2 Setpoints with SPNO contacts rated 240Vac/30Vdc at 3A.
Option LP2Remote handheld programmer with 4½ digit display.
Option PGM1Programming cable.
Case dimensionsH 120 W 25 D 112mm
Operating temperature range-20 (Min) / 50 (Max)°C
Storage temperature-20 (Min) / 70 (Max)°C
Humidity0 (Min) / 95 (Max)%RH Non condensing
ProtectionIP20

Order Codes

CodeDescription
The option codes from the table above are added to the base product code LCD20. Please consult our engineering department for help with your requirements.

Notes

  • FS = full scale.
  • FR = full range.
  • RH = relative humidity.
  • Analogue output specifications are based upon 80 samples per second with no averaging or filtering.

Files

TitleTypeFile
Printable manual.PDF Manual Download

Enquire about LCD20 Loadcell Amplifier

Related Products

TR150 Portable Loadmeter

The TR150 is a completely portable, precision instrument packaged in a small, robust IP65 (NEMA 4) enclosure, weighing only 260 grams. The TR150 accepts an input range of up to 50mV/V.

DSC USB Loadcell Digitiser

The DSC USB is a compact, high performance digital signal conditioner with USB connectivity aimed at applications, which require high-accuracy measurement repeatability.

FSU-SSBD Fast Loadcell Digitiser

The FSU-SSBD is a fast, compact, high precision loadcell input module delivering high resolution readings over USB and communicated directly to a PC.

SGA/A and SGA/D Loadcell Amplifier

The SGA loadcell amplifier is designed for use with strain gauge loadcells. It provides industry standard current or voltage outputs for accurate interfacing of loadcells with control and monitoring systems.

ICA6H Loadcell Amplifier

This miniature loadcell amplifier is designed for use with strain gauge loadcells. It has a bi-polar ±10V output for use with bi-directional loadcells even though it is powered from a uni-polar supply.

LCA20 Loadcell Amplifier

The LCA15 has been redesigned to become the LCA20 taking advantage of new technology to improve performance and increase functionality.

LCD20 Loadcell Amplifier

The LCD20 intelligent loadcell amplifier is a compact, DIN rail mounted microprocessor based unit for use with strain gauge bridge loadcells in force measuring applications.

TLB DIN rail mounted digital loadcell amplifier

TLB DIN rail mounted digital loadcell amplifier

TLM8 Multi-input digital loadmeter

TLM8 Multi-input digital loadmeter

WLIGHT portable digital loadmeter

WLIGHT portable digital loadmeter

W200 digital loadmeter

W200 digital loadmeter

INT4-L

The versatile INT4-L panel mount loadmeter for strain gauge loadcells

T24-ACM/SA Loadcell Telemetry Data Acquisition Unit

This remote loadcell data acquisition unit provides high performance wireless measurement of loadcell outputs. Providing direct mV/V input and 5V bridge excitation for up to 4 load cells.

T24-ACMi/SA Miniature Loadcell Telemetry Data Acquisition Unit

This miniature loadcell data acquisition unit provides high performance wireless measurement of loadcell outputs. Providing direct mV/V input and 5V bridge excitation for up to 4 load cells.

T24-BSu Loadcell Telemetry Base Station

The base station is a computer interface for the T24 telemetry system that connects to a standard USB port on a computer. It is required for the configuration of all T24 modules.

T24-HA Handheld Telemetry Display Unit

This wireless handheld display module provides an 8 digit LCD reading from up to twelve T24 loadcell data acquisition modules.

T24-HS Handheld Telemetry Display Unit

This wireless handheld display module provides an 8 digit LCD reading from a T24 loadcell data acquisition module.

T24-SYS Loadcell Telemetry System

The T24 telemetry range is a flexible radio telemetry system designed to provide high accuracy measurement data from strain gauge loadcells.

T24-SYSC Set-up Wheel Loadcell Telemetry System

The T24 telemetry range is a flexible radio telemetry system designed to provide high accuracy measurement data from strain gauge loadcells.

SMW Intelligent Loadmeter

This panel or wall mounting loadmeter is designed for use with strain gauge loadcells.

ADW15 Loadmeter

This intelligent self contained loadmeter is designed for use with strain gauge loadcells.

SY011 Loadcell Amplifier

This loadcell amplifier is designed for use with strain gauge loadcells.

SY014 Integral Loadcell Amplifier

This loadcell amplifier is designed for mounting inside the F256 and F257 loadcells.

SY018 Loadcell Amplifier

This DIN rail mounted loadcell amplifier is designed for use with strain gauge loadcells.

SD039 Integral Loadmeter

This small loadmeter is designed for mounting in modified strain gauge loadcells.