Military-Grade Strain Gage Amplifier: Model 5804

The Columbia Model 5804 Military-Grade Strain Gage Amplifier is used to amplify signals from Columbia’s Full-Bridge Strain Sensors in the DT and DTD Series. The system provides both strain and temperature outputs.

In the case of input offset equivalent strains in that range, the strain output features a microprocessor-driven auto zeroing circuit effective in adjusting for input offsets of up to ±3000 µє equivalent and will instantly drive the output to 0.00 VDC.

This function enables the operator to compensate for any strain offsets caused by gage installation, material fatigueor deformation.

Auto zeroing can be done automatically when the power is turned on, or manually using the auto-zero function pin on the power connection.

A 1000 Ω platinum RTD offers a linearized temperature output of 40 mV / Deg C from -40 °C (0.00 V) to +85 °C (5.00 V). Over its rated operational range, the temperature output will stay within ±3° or ±120 mV of the straight line going through these two locations.

Strain andTemperature Outputs

Auto Zeroing Capability

Wide Input Power Range

Connects to any Columbia Full Bridge Strain Sensor

Specifications

Operational

Table 1. Source: Columbia Research Laboratories, Inc.

Physical

Table 2. Source: Columbia Research Laboratories, Inc.

¹ Specify optional Strain Output Range as model number suffix (e.g. Model 5804 - Range ± XXXX μϵ)² Optional cutoff Frequencies Available

Image Credit: Columbia Research Laboratories, Inc.

Sensor PinFunctions

Table 3. Source: Columbia Research Laboratories, Inc.

Amplifier PinFunctions

Table 4. Source: Columbia Research Laboratories, Inc.