Futek IAA300 Quick Start Manual

Sensor Solutions Source Load · Torque · Pressure · Multi-Axis · Calibration · Instruments · Software www.futek.com IAA300 Differential Strain Gauge Amplifier

Please visit http://www.futek.com/salesterms for complete terms and conditions. 10 Thomas, Irvine, CA 92618 USA Tel: (949) 465-0900 Fax: (949) 465-0905 www.futek.com TECHNICAL SUPPORT For more IAA300 support, please visit: http://www.futek.com/iaa/support.aspx

Logic Board Configuration . . . . . . . . . . . . . . . . 4 Sensor Side Connections . . . . . . . . . . . . . . . . . 5 Power Side Connections . . . . . . . . . . . . . . . . . 6 Bandwidth Setup . . . . . . . . . . . . . . . . . . . . . 7 Setup Steps . . . . . . . . . . . . . . . . . . . . . . . . 8 Table of Contents

Excitation Polarity Gain Bandwidth Shunt Selection Shunt Button Span Zero SW SW SW SW SW SW SW SW 1 2 3 4 5 6 7 8 1 2 3 5 4 7 8 6 Note: Remove the magnetic cover to gain access to the logic board.

1 For 6 wire sensors, connect +SENSE to +EXCITATION and –SENSE to –EXCITATION. Note: Sensor cable shield connections should be grounded on one end, either the sensor side or the IAA sensor input side, to avoid potential ground loops. SENSOR SIDE PIN # WIRING CODE 1 SHIELD 2 + EXCITATION1 3 + SIGNAL 4 – SIGNAL 5 – EXCITATION1 IMPORTANT NOTE: Do not connect the device to the power supply when the power supply is already on.

Power is 12.5VDC to 26VDC. Note: Output is differential. Do not connect – Vout to ground. Cable shield should be grounded on one end, either the IAA power side or instrument side to avoid potential ground loops. POWER SIDE PIN # WIRING CODE 1 + Vin 2 Gnd 3 Shunt 4 + Vout 5 – Vout 6 Shield IMPORTANT NOTE: Do not connect the device to the power supply when the power supply is already on.

SW4 BANDWIDTH 1 2 3 4 BANDWIDTH (Hz) ▲ ▼ ▼ ▼ 100 ▼ ▲ ▼ ▼ 1,000 ▼ ▼ ▲ ▼ 10,0002 ▼ ▼ ▼ ▲ 25,0003 ▼ ▼ ▼ ▼ 50,0004 SW4 can be used to set the bandwidth from 100 Hz to 50,000 Hz. Confirm the bandwidth is appropriate for your application. 2 Only for sensitivity of 1.0 mV/V or greater 3 Only for sensitivity of 1.5 mV/V or greater 4 Only for sensitivity of 2.0 mV/V or greater Note: Increasing the bandwidth can increase the overall noise. 4

VDC excitation. By default the IAA amplifier is set to 10 VDC at FUTEK. 2. Set the gain DIP switch (SW3) to the appropriate gain level. By default the gain is set with switch 4 up for a 2 mV/V sensor. (Use our online gain setting Excel sheets on the FUTEK support webpage to find the appropriate gain DIP switch setting for your sensor’s mV/V output.) 3. With the sensor and IAA amplifier completely con- nected apply the 12.5 to 26 VDC. 4. With no load on the sensor adjust the Zero poten- tiometer until the output is as close to 0 VDC as possible. 5. With a known load placed on the sensor adjust the Span potentiometer to as close to the appropriate output level as possible. For example, 10 VDC for a full load output. 6. Remove the load and reconfirm the zero load output, and then reapply the known load and re-confirm the span output. Setup Steps IMPORTANT NOTE: Do not connect the device to the power supply when the power supply is already on. Note: Adjusting the Span will affect any system calibrations. Adjusting the zero will not. FUTEK’s online calibration tool allows you to retrieve a summary of your sensor’s calibration data: http://www.futek.com/calibrationData.aspx

1. Hold down the Shunt button. 2. Adjust the Span of the IAA amplifier until the output correlates with the value chosen for the shunt. A remote shunt is available on the power connection side, and can be activated with 5 to 26 VDC. The online Shunt calculator on the FUTEK website can be used to calculate an estimated result from a shunt resistance, or to calculate a resistance needed for a certain sensor output value when shunted. http://www.futek.com/shuntcalc.aspx Shunt Selection Shunt Button