Last Updated: 05/04/2025 1:37 AM
The following table lists all the components that make up the document.
Operate the FHT 1377 PackEye radiation detection backpack with the PackEye mobile application (app) to search for and locate nuclear and other radioactive (RN) material. PackEye Mobile is available for both iOS and Android devices.
Restructured and revised entire procedure to be consistent with new training and mobile deployment
4032 - 4019 - Prepare Equipment; Remark:
4019 - Prepare Equipment
Prepare Equipment
4033 - 4020 - Prepare PackEye backpack for Operation; Remark:4004
4020 - Prepare PackEye backpack for Operation
Prepare PackEye backpack for Operation
4004 - Refer to DET-HHD-THR-PAK-OP01, PackEye Operation.
Refer to DET-HHD-THR-PAK-OP01, PackEye Operation.
1496 - 1495 - Power on mobile device; Remark:
1495 - Power on mobile device
Power on mobile device
4041 - 3885 - Open PackEye Mobile; Remark:3910
4040 - Note : Refer to DET-HHD-THR-PAK-OP05, PackEye Mobile App Pairing for instru...
Refer to DET-HHD-THR-PAK-OP05, PackEye Mobile App Pairing for instructions to install the PackEye Mobile app and pair with a PackEye.
3885 - Open PackEye Mobile
Open PackEye Mobile
4034 - 4021 - Select BT adapter, if prompted; Remark:4005
4026 - Caution : There are several types of BT adapters. Verify the BT adapter works with the ...
There are several types of BT adapters. Verify the BT adapter works with the PackEye Mobile app. Refer to DET-HHD-THR-PAK-OP05, PackEye Mobile App Pairing for details.
4027 - Note : Only one (1) mobile device at a time may be connected to a backpack.
Only one (1) mobile device at a time may be connected to a backpack.
4028 - Note : If the mobile device has not been connected previously, the user will be prom...
If the mobile device has not been connected previously, the user will be prompted to pair a device.
4029 - Note : PackEye Mobile appearance and functionality will vary slightly between iOS an...
PackEye Mobile appearance and functionality will vary slightly between iOS and Android devices.
4021 - Select BT adapter, if prompted
Select BT adapter, if prompted
4005 - Tap the correct BT adapter serial number under Paired devices
Tap the correct BT adapter serial number under Paired devices to connect. The BT adapter serial number is located on the Bluetooth dongle connected to the PackEye.


4035 - 4022 - Verify mobile device is communicating with PackEye; Remark:4006
4022 - Verify mobile device is communicating with PackEye
Verify mobile device is communicating with PackEye
4006 - Values will change every second.
Values will change every second.

4016 - 319 - Perform operational test; Remark:4007
319 - Perform operational test
Perform operational test
4007 - It is recommended to perform an operational test daily before use. DET-HHD-TH...
It is recommended to perform an operational test daily before use. DET-HHD-THR-PAK-RM01, PackEye Operational Test.
4036 - 365 - Locate RN material; Remark:
4030 - Note : PackEye Mobile only displays information. The PackEye indicator unit must be ...
PackEye Mobile only displays information. The PackEye indicator unit must be used to acknowledge alarms and change modes. Refer to DET-HHD-THR-PAK-OP01, PackEye Operation for more information.
365 - Locate RN material
Locate RN material
4037 - 4023 - Search area; Remark:4008
4023 - Search area
Search area
4008 - Use search techniques appropriate for the situation.
Use search techniques appropriate for the situation.

4015 - 367 - Observe instrument response; Remark:4009
4031 - Note : Radiation level units (cps, uSv/h, or mR/h) are dependent on PackEye Mobile s...
Radiation level units (cps, uSv/h, or mR/h) are dependent on PackEye Mobile settings.
367 - Observe instrument response
Observe instrument response
4009 - Observe the displayed gamma and neutron levels. Values are displayed for both...
Observe the displayed gamma and neutron levels. Values are displayed for both gamma and neutron. The radiation levels (1-10) mirror the radiation levels on the PackEye indicator unit.

4014 - 2357 - Acknowledge alarms; Remark:4010
2357 - Acknowledge alarms
Acknowledge alarms
4010 - Depending on the device and settings, there might be audible alarms, vibratio...
Depending on the device and settings, there might be audible alarms, vibration alerts, and notifications.

4000 - 853 - Locate area with highest level of radiation; Remark:3961
853 - Locate area with highest level of radiation
Locate area with highest level of radiation
3961 - A gradual 360° turn might be needed to determine the direction of the source...
A gradual 360° turn might be needed to determine the direction of the source. Move in the direction of increasing radiation. Continue moving until radiation levels begin to decrease.

405 - 368 - Mark point(s) of interest; Remark:4277
368 - Mark point(s) of interest
Mark point(s) of interest
4277 - Place a marker (tape, pencil, etc.) on points exhibiting elevated radiation. ...
Place a marker (tape, pencil, etc.) on points exhibiting elevated radiation. There may be more than one point of interest.

4002 - 375 - Document results; Remark:3963
375 - Document results
Document results
3963 - Document the distribution of radiation, locations of concentrated radiation l...
Document the distribution of radiation, locations of concentrated radiation levels, and approximate radiation levels observed at all locations. Report this information to the inspection team lead.
4038 - 4024 - Power Off Equipment; Remark:
4024 - Power Off Equipment
Power Off Equipment
4039 - 4025 - Exit PackEye Mobile; Remark:4011
4025 - Exit PackEye Mobile
Exit PackEye Mobile
4011 - Use the standard functions on the mobile device to exit the app.
Use the standard functions on the mobile device to exit the app.
3869 - 313 - Power off instrument; Remark:3850
313 - Power off instrument
Power off instrument
3850 - Press and hold the power button for approximately 10 seconds until indicator ...
Press and hold the power button for approximately 10 seconds until indicator lights are off.

4013 - 315 - Connect charger; Remark:4012
315 - Connect charger
Connect charger
4012 - Charge PackEye and mobile device.
Charge PackEye and mobile device.