Last Updated: 04/25/2025 1:38 AM
The following table lists all the components that make up the document.
Operation of the FHT 1377 PackEye radiation detection backpack using a Trimble Juno mobile device to search for and locate nuclear and other radioactive (RN) material.
4032 - 4019 - Prepare Equipment; Remark:
4019 - Prepare Equipment
Prepare Equipment
4092 - 4047 - Prepare PackEye for operation; Remark:4059
4047 - Prepare PackEye for operation
Prepare PackEye for operation
4059 - Refer to DET-HHD-THR-PAK-OP01, PackEye Operation.
Refer to DET-HHD-THR-PAK-OP01, PackEye Operation.
4093 - 1495 - Power on mobile device; Remark:4060
4088 - Caution : Protect the Trimble from extreme temperatures, dirt and dust, impacts, and he...
Protect the Trimble from extreme temperatures, dirt and dust, impacts, and heavy moisture. Protect the screen from excessive pressure and abrasive objects.
1495 - Power on mobile device
Power on mobile device
4060 - The display may take 2 to 3 seconds to appear.
The display may take 2 to 3 seconds to appear.

4094 - 4050 - Wait for PackEye software to start; Remark:4061
4050 - Wait for PackEye software to start
Wait for PackEye software to start
4061 - The PackEye software should start automatically. If it does not, use the styl...
The PackEye software should start automatically. If it does not, use the stylus to select the program from the start menu.

4095 - 2295 - Verify sufficient battery charge; Remark:4064
2295 - Verify sufficient battery charge
Verify sufficient battery charge
4064 - Recharge if the battery icon has fewer than two bars or the LED around the po...
Recharge if the battery icon has fewer than two bars or the LED around the power button is flashing red.

4096 - 4051 - Tap ok on popup message; Remark:4126
4051 - Tap ok on popup message
Tap ok on popup message
4097 - 4052 - Tap Start; Remark:4125
4089 - Note : If the Trimble cannot communicate with the PackEye, see DET-HHD-THR-OP04,
If the Trimble cannot communicate with the PackEye, see DET-HHD-THR-OP04, PackEye Trimble Pairing.
4052 - Tap Start
Tap Start
4098 - 4053 - Select monitor screen; Remark:4070
4090 - Note : The choice of monitor screen is a user preference.
The choice of monitor screen is a user preference.
4053 - Select monitor screen
Select monitor screen
4070 - Tap Rates to display gamma dose rate (µSv/h) and neutron co...
Tap Rates to display gamma dose rate (µSv/h) and neutron count rate [counts per second (cps)].

4124 - Tap x,t to display graphical view of gamma and neutron count...
Tap x,t to display graphical view of gamma and neutron counts. It is recommended to check the Auto Range box.

4099 - 4054 - Verify Trimble is communicating with PackEye; Remark:4073
4054 - Verify Trimble is communicating with PackEye
Verify Trimble is communicating with PackEye
4073 - Dose rates will change every second.
Dose rates will change every second.

4123 - Graph values will fluctuate.
Graph values will fluctuate.

4100 - 319 - Perform operational test; Remark:4074
319 - Perform operational test
Perform operational test
4074 - 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.
410 - 7519 - Locate radioactive material; Remark:
7519 - Locate radioactive material
Locate radioactive material
4101 - 3827 - Select Alarm mode; Remark:4076
3827 - Select Alarm mode
Select Alarm mode
4076 - Tap Finder to switch between Alarm (Search) mode and Chirper...
Tap Finder to switch between Alarm (Search) mode and Chirper (Finder) mode.

4121 - Alarm mode: no speaker.
Alarm mode: no speaker.

4122 - Chirper mode: speaker is visible.
Chirper mode: speaker is visible.

4102 - 4023 - Search area; Remark:4077
4023 - Search area
Search area
4077 - Use search techniques appropriate for the situation.
Use search techniques appropriate for the situation.

4103 - 367 - Observe instrument response; Remark:4078
367 - Observe instrument response
Observe instrument response
4078 - Alarms will be indicated on the Trimble device.
Alarms will be indicated on the Trimble device.

4104 - 2357 - Acknowledge alarms; Remark:4079
2357 - Acknowledge alarms
Acknowledge alarms
4079 - Tap ACK to acknowledge an alarm.
Tap ACK to acknowledge an alarm.

4105 - 3831 - Select Chirper mode; Remark:4080
4091 - Note : A handheld survey instrument can be used to more accurately locate the source...
A handheld survey instrument can be used to more accurately locate the source of radiation.
3831 - Select Chirper mode
Select Chirper mode
4080 - Tap Finder on the Trimble. In Chirper (Finder) mode there is...
Tap Finder on the Trimble. In Chirper (Finder) mode there is a speaker symbol near the top of the display.

4106 - 4055 - Walk slowly in area of interest; Remark:4120
4055 - Walk slowly in area of interest
Walk slowly in area of interest
4107 - 367 - Observe instrument response; Remark:4119
367 - Observe instrument response
Observe instrument response
4108 - 853 - Locate area with highest level of radiation; Remark:4081
853 - Locate area with highest level of radiation
Locate area with highest level of radiation
4081 - 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.

4110 - 375 - Document results; Remark:4083
375 - Document results
Document results
4083 - Document the distribution of radiation, location(s) of concentrated radiation...
Document the distribution of radiation, location(s) of concentrated radiation levels, and approximate radiation levels observed at all locations.
4038 - 4024 - Power Off Equipment; Remark:
4024 - Power Off Equipment
Power Off Equipment
4111 - 4057 - Exit PackEye software; Remark:4084
4057 - Exit PackEye software
Exit PackEye software
4084 - Tap Stop. Tap Exit.
Tap Stop. Tap Exit.

4118 - Tap Yes or No to save all search informatio...
Tap Yes or No to save all search information to the Trimble device.

4117 - Tap Yes to complete the action and exit the software.
Tap Yes to complete the action and exit the software.

4112 - 4703 - Power off mobile device; Remark:4085
4703 - Power off mobile device
Power off mobile device
4085 - Hold power button until menu appears. Tap Shutdown.
Hold power button until menu appears. Tap Shutdown.

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.

4114 - 315 - Connect charger; Remark:4087
315 - Connect charger
Connect charger
4087 - Charge PackEye and Trimble.
Charge PackEye and Trimble.