User Manual Q&AAnswer
Jun 13, 2025 - 12:25 AM
To set up and calibrate the FUTEK IAC200 Four Channel Summing Junction Box with multiple sensors, follow these steps based on the user manual:
1. **Configuration:**
- Remove the bottom cover of the IAC200 to access the board.
- For amplified versions, disconnect the ribbon cable from the center amplifier to the IAC200 board on connection J6.
- Enable one sensor channel at a time by setting both DIP switches to the ON position for the channel and the rest to the OFF position.
2. **Wiring:**
- Connect each sensor to the IAC200, ensuring correct polarity for excitation and signal.
- Connect the power supply to the IAC200 for sensor excitation.
- Connect a voltage meter to the IAC200 output to measure sensor outputs in mV.
3. **Measurement:**
- Apply a known load to the first sensor and record the mV output on the voltmeter.
- Adjust the Channel Select for each sensor individually to determine their outputs under the same load.
4. **Adjustment:**
- Set the Channel Select DIP switches to the first channel ON and all others OFF.
- Apply a known load to the sensor and adjust the SPAN potentiometer to match the lowest recorded output.
- Repeat this process for each sensor until they all have the same mV output under the same load.
5. **Setup Finalization:**
- Set all Channel Select DIP switches to ON for connected sensors to combine their outputs into one signal.
- Reconnect the ribbon cable if disconnected for amplified versions.
- Set the output of the IAC200 to the appropriate mode (S for non-amplified, V for voltage amplified, I for current amplified).
- For amplified setups, convert the combined mV output to mV/V for input to the amplifier.
By following these steps outlined in the manual, users can effectively set up and calibrate the FUTEK IAC200 Four Channel Summing Junction Box with multiple sensors for accurate and reliable measurements.
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