Futek IAA100 Troubleshooting Manual Download Page 2

IAA100/IAA200 Troubleshooting Guide

2

Drawing Number: SP1220

Copyright © FUTEK Advanced Sensor Technology, Inc. 2014. Neither the whole nor any part of the information contained in, or the product described in this manual, may be 
adapted or reproduced in any material or electronic form without the prior written consent of the copyright holder.

This product and its documentation are supplied on an as-is basis and no warranty as to their suitability for any particular purpose is either made or implied.

This document provides preliminary information that may be subject to change without notice.       

10 Thomas, Irvine, CA 92618 USA

Tel: (949) 465-0900
Fax: (949) 465-0905
Toll Free: (800) 23 FUTEK

www.futek.com

ISO

13485

ANSI

Z540-1

ISSUE: 

Constant High Output

CHECK FOR: 

 

Open on sensor side.
•  Confirm wiring
•  Confirm connection to sensor
•  Measure sensor bridge resistance for any internal opens.

High output from sensor.
•  Measure ± Signal input from sensor to amplifier to see if 

sensor has a high output.

•  Excitation must be provided to sensor when measuring 

± Signal input.

Ensure sensor is not under load or stress.
•  Remove sensor from application and fixtures to test for 

installation stress.

ISSUE: 

Damaged Amplifier

Given the cost of a new amplifier we recommend a new 
purchase over a possible repair which can include evaluation 
cost, repair cost, calibration cost, shipping, and time loss.

For system calibration a RMA would be recommended with 
the intent that a new amplifier would be recommended but 
sensor will be present for calibration to new amplifier.

Some items that can damage amplifier:
•  Connection to power with power already on.
•  Connection of power to incorrect pins.
•  Shorts or incorrect wir-ing on output connec-tions or 

excitation pins.

ISSUE: 

Constant Low Output

CHECK FOR: 

 

Power to amplifier.
•  Confirm supply of 12.5VDC to 26VDC.
•  Confirm power connection wiring. Positive on Pin 1 +Vin 

and ground on Pin 2 Gnd.

•  Power LED on amplifier should be on.

Short on sensor side.
•  Confirm wiring
•  Confirm connection to sensor
•  Measure sensor bridge re-sistance for any internal 

shorts.

Ensure load is applied properly to sensor.
•  Ensure load is not being supported by items other than 

sensor.

•  Take sensor out of application and apply a known load.

Check shunt.
•  Shunt function should simulate an output on the sensor.

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