SOP FS1001 Tuning

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Standard Operating Procedure
Subject:
SOP FS1001 Tuning
Author:
Darren R. Chase
Approved by:
Don Warf

Contents

Objective

This procedure is to ensure that the calibration process of the FS1001 is consistently performed and accurate regardless of whom the installer maybe within the PTOC group.

Scope

This calibration procedure is limited to the FS1001 Juvenile transceiver relating to a new installation.

Responsibilities

It will be the responsibility of the technical installer assigned to a project to follow this process in its entirety in order to certify the installation prior to the facility actively interrogating PIT-tagged fish.

Tools Required

The following tools or equivalents will be required to perform this procedure.

  • Fluke 192C Scopemeter or equivalent
  • Fluke 87III True RMS Multimeter
  • Potentiometer adjusting tool (Tweaker)
  • Tektronix Current Probe P6021
  • AMP Pin Crimper
  • Connector Pins
  • AMP Connector w/ Backshell and Strain relief



Procedure



Cable Connections

If the Exciter Cable and the Timer Tag cable have not been installed then they should be installed before any tuning of this transceiver can be achieved. To install the cables you will need to follow the procedure as called out in SOP Flume/Pipe Antenna Installation. Once the cables have been installed the Timer tag cable can be terminated inside the transceiver enclosure.

  1. Timer Tag Cable
    • Strip cable jacket back 2 inches. Be careful not to nick the wires.
    • Remove the foil around wires.
    • Cut The blu/wht and wht/org wires off.
    • Strip the remaining two wires back about 1/4"
    • Use the AMP crimp tool to crimp the pins on the the two colored wires as well as the shield cables.
    • Install the backshell and strain relief onto the cable.
    • Insert the org/wht pin into 3
    • Insert the wht/blu pin into 6
    • Insert the shield pin into 4
    • Use the AMP pin removal tool Part# and press the back of the pins until they have seated into the connector.
    • Connect to the Timer Tag connector to the transciever.
  2. Exciter Cable
The exciter cable has an overmolded end inside the transceiver and is cut to length inside the monitor (shield).
    • Connect the exciter cable to the transceiver.
    • Until the transciever is tuned you should twist the antenna and exciter wires together. Once the system is tuned you can follow the final connection procedures found in the Antenna Completion section of the SOP Flume/Pipe Antenna Installation procedure.
    • Verify the inductance of the antenna and adjust if not around 280uH.
  2. Sync Cable
    • Attach the sync cable between transceivers if more than one antenna is present in the monitor.
    • The "sync out" signal of the most upstream antenna is connected to the "sync in" of the downstream antenna.



Course Tuning

  1. Voltage setting
    • Using a Digital Volt Meter (DVM), be sure that the meter is set to DC volts. Place test leads on the +VE and 0VE test loops located on the left side of the transceiver. (Reference picture for location.)
    • Adjust RP-2 (Reference picture for location) Adjust RP-2 until the voltage reading on the meter reads13.5 VDC +/- 200mV. This will only be a nominal setting and may require further adjustments given the physical characteristics of the installation.
    Exciter Voltage Adjustment
    Exciter Voltage Adjustment
  2. Set the position of the variable capacitor.
    • Rotate the vari-cap fully counter clock wise. CCW position adds capacitance to the circuit.
    • Rotate the vari-cap 2 complete turns clock wise. CW subtracts capacitance from the circuit. This will be the starting position.



Fine Tuning

  1. System tune
    • Attach the Current probe to channel "A" of the scopemeter and around the white wire on the analog board (W1).
    • Power the transceiver on. Let system run through the boot cycle.
    • Use the keypad to navigate to the signal screen.
    • Adjust the variable capacitor in both directions and watch the current on the display.
    • If the current peaks while turning the capacitor Clockwise (CW) you will need to lower the inductance of the antenna.
    • If the current peaks while turning the capacitor Counterclockwise (CCW) you will need to raise the inductance of the antenna.
  2. Adjust Inductance
    • To lower the inductance wire will need to be removed from the antenna. Try removing one (1) full wrap and remeasure the inductance this will give an idea as to how much one (1) wrap of wire will change the inductance.
    • To raise the inductance reverse the previous step.
    • As you approach tune of the system you made need to remove and add wire to the antenna in small increments. It will help in the final install of the antenna if you try to adjust the wire so that both ends of the antenna are on the same side of the pipe.
    • Continue to adjust the inductance and capacitance until the current can be peaked and there is signal roll-off on both sides while adjusting the variable capacitor.
    • Once the current has been peaked you can try to fine tune the antenna adjustment so that the variable capacitor is in the middle of the adjustment when the current is peaked. This allows for maximum adjustment if the tuning happens to change a little when the final connections are made and the antennas are sealed. In some instances the monitor (shield) doors may have an influence on the tune.
    • Record the Phase, Signal, and current once system has been tuned.
    • If multiple antennas are present inside the monitor it would be best to tune all systems before making any final connections.
    • Repeat the steps above for additional antennas.
    • Complete the final connections and sealing of the antennas by following the steps in the Antenna Completion section of the SOP Flume/Pipe Antenna Installation procedure.
  3. Timer Tag
    • After the timer tag has been installed it will need to be tested.
    • Turn the timer tag on under the diagnostics menu.
    • Check the hit rate. It should be 100%.
    • Adjust position of the timer tag on the antenna if the hit rate is not 100%. Remember that the display updates every four (4) seconds.
    • Secure the timer tag in place.



Final Transceiver Settings for operation

After the transceiver has been tuned there are some settings that need to changed from the default settings for PTOC operations they are listed below.

  1. Reader menu
    • Unique to On
  2. Diagnostic Menu
    • Current Alarm Threshold to 300mV below the current displayed with the door shut.
    • Test Tag Delay to 60 minutes.
    • Report Delay to once per file, if the file duration was 3 hours the delay would be 180 minutes.






References

SOP Flume/Pipe Antenna Installation- PTAGIS SOP

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