Handheld Radiation Monitor Operation | FRONTLINE Maintenance Tool

Last Updated: 04/25/2025 1:39 AM

The following table lists all the components that make up the document.

Title	Type	Status	Last Updated
Sensor Tech Handheld Radiation Monitor	Device	Published	10/28/2024 3:52 PM
247 - 257 - Prepare instrument; Remark:	Procedure Step	Published	04/11/2025 9:08 PM
257 - Prepare instrument	Instruction	Published	04/11/2025 9:07 PM
786 - 219 - Verify there are no sources of radiation near instrument; Remark:7	Procedure Step	Published	04/20/2025 6:37 PM
219 - Verify there are no sources of radiation near instrument	Instruction	Published	04/12/2025 4:20 PM
7 - No Radiation symbol	Remark	Published	07/12/2021 1:34 PM
4289 - 220 - Power on instrument; Remark:4287	Procedure Step	Published	06/06/2022 4:10 PM
220 - Power on instrument	Instruction	Published	04/06/2025 7:00 PM
4287 - Select a mode for operation: AUDIO only	Remark	Published	06/06/2022 4:09 PM
4288 - VIBRATE only	Remark	Published	06/06/2022 4:09 PM
4290 - 612 - Wait for instrument to complete start-up sequence; Remark:4286	Procedure Step	Published	04/13/2025 6:50 PM
612 - Wait for instrument to complete start-up sequence	Instruction	Published	04/13/2025 6:38 PM
4286 - The unit is ready for operation when the period flashes every 20 seconds....	Remark	Published	06/06/2022 4:11 PM
4291 - 319 - Perform operational test; Remark:4285	Procedure Step	Published	11/03/2022 2:50 PM
319 - Perform operational test	Instruction	Published	06/10/2021 8:31 PM
4285 - It is recommended to perform an operational test daily before use. DET-HHD-ST...	Remark	Published	06/06/2022 4:12 PM
4284 - 2903 - Operation; Remark:	Procedure Step	Published	06/06/2022 4:13 PM
2903 - Operation	Instruction	Published	06/15/2021 8:58 AM
4282 - 2904 - Wear instrument during shift; Remark:4281	Procedure Step	Published	06/06/2022 4:14 PM
2904 - Wear instrument during shift	Instruction	Published	06/15/2021 9:00 AM
4281 - The HRM should be worn on the body, such as forearm, lower leg, or on the tor...	Remark	Published	06/06/2022 4:14 PM
4283 - 4280 - Update background as needed; Remark:4278	Procedure Step	Published	06/06/2022 4:18 PM
4280 - Update background as needed	Instruction	Published	06/06/2022 4:14 PM
4278 - Background should be updated when:	Remark	Published	06/06/2022 4:16 PM
4279 - Moving to different surroundings Searching for high activi...	Remark	Published	06/06/2022 4:18 PM
4308 - 1096 - Respond to alarms; Remark:4307	Procedure Step	Published	06/06/2022 4:20 PM
1096 - Respond to alarms	Instruction	Published	06/15/2021 9:00 AM
4307 - When the instrument alarms, either move away from the source of radiation or ...	Remark	Published	06/06/2022 4:20 PM
4309 - 4305 - Follow standard operating procedures (SOPs); Remark:4304	Procedure Step	Published	06/06/2022 4:23 PM
4306 - Note : An alarm is indicated by a numeric value (1-9) in the gamma and/or neutron LE...	Annotation	Published	06/06/2022 4:22 PM
4305 - Follow standard operating procedures (SOPs)	Instruction	Published	06/06/2022 4:20 PM
4304 - SOPs will define acceptable radiation levels from RN material.	Remark	Published	06/06/2022 4:21 PM
410 - 7519 - Locate radioactive material; Remark:	Procedure Step	Published	04/13/2025 6:17 PM
7519 - Locate radioactive material	Instruction	Published	04/13/2025 5:47 PM
4298 - 363 - Select mode; Remark:4882	Procedure Step	Published	06/06/2022 4:24 PM
363 - Select mode	Instruction	Published	06/10/2021 8:35 PM
4882 - AUDIO mode is recommended for searching.	Remark	Published	08/17/2022 2:08 PM
4299 - 408 - Survey close to surface of item; Remark:388	Procedure Step	Published	06/06/2022 4:25 PM
408 - Survey close to surface of item	Instruction	Published	06/10/2021 8:50 PM
388 - Maintain a distance of approximately 5 to 10 cm from surface of item. Do not ...	Remark	Published	06/10/2021 8:49 PM
4879 - IO HRM Survey 5 cm close to truck	Remark	Published	10/19/2024 9:17 PM
4300 - 366 - Survey slowly over entire item; Remark:2315	Procedure Step	Published	06/06/2022 4:25 PM
366 - Survey slowly over entire item	Instruction	Published	06/11/2021 9:10 AM
2315 - Move instrument approximately 20 cm per second. Thoroughly survey all accessi...	Remark	Published	11/04/2020 5:09 PM
4878 - IO HRM Survey Raster Pattern Truck	Remark	Published	10/19/2024 9:18 PM
4301 - 367 - Observe instrument response; Remark:4297	Procedure Step	Published	06/06/2022 4:26 PM
367 - Observe instrument response	Instruction	Published	06/11/2021 9:21 AM
4297 - Numerical values and audible alerts or vibration rate will increase with radi...	Remark	Published	06/06/2022 4:26 PM
10647 - 10646 - Localize source of radiation; Remark:386	Procedure Step	Published	06/14/2024 4:35 PM
10646 - Localize source of radiation	Instruction	Published	06/14/2024 4:22 PM
386 - Use crosshair technique to localize.	Remark	Published	06/11/2021 9:20 AM
10648 - HRM Search Crosshair pattern	Remark	Published	07/24/2024 12:00 PM
4302 - 4296 - Reset threshold (if necessary); Remark:4295	Procedure Step	Published	06/06/2022 4:28 PM
4296 - Reset threshold (if necessary)	Instruction	Published	06/06/2022 4:27 PM
4295 - If a 9 appears on the gamma display, press UPDATE and contin...	Remark	Published	06/06/2022 4:28 PM
405 - 368 - Mark point(s) of interest; Remark:4277	Procedure Step	Published	04/20/2025 5:44 PM
368 - Mark point(s) of interest	Instruction	Published	06/11/2021 9:23 AM
4277 - Place a marker (tape, pencil, etc.) on points exhibiting elevated radiation. ...	Remark	Published	04/20/2025 5:37 PM
4294 - 313 - Power off instrument; Remark:4293	Procedure Step	Published	06/06/2022 4:31 PM
313 - Power off instrument	Instruction	Published	07/23/2021 2:41 PM
4293 - Move switch to OFF position.	Remark	Published	06/06/2022 4:31 PM
Operator Procedure	Document Type	Published	03/02/2020 3:31 PM
Note	Annotation Type	Published	03/02/2020 3:25 PM
No Radiation Symbol	Image	Published	08/13/2024 2:56 PM
HRM Switch in AUDIO position	Image	Published	08/02/2022 5:03 PM
HRM Switch in VIBRATE position	Image	Published	08/02/2022 5:06 PM
HRM Red LED Dot Period	Image	Published	08/02/2022 4:53 PM
HRM Wear Position Arm_Leg	Image	Published	08/02/2022 5:10 PM
HRM Update Background Button	Image	Published	08/02/2022 7:45 PM
HRM Red U for Update	Image	Published	08/02/2022 4:54 PM
HRM Search 5-cm	Image	Published	08/02/2022 4:56 PM
HRM Raster Scan Search Truck	Image	Published	08/02/2022 5:02 PM
HRM Gamma Level 4	Image	Published	08/02/2022 4:50 PM
HRM Search Crosshair pattern	Image	Published	08/02/2022 4:58 PM
Mark_Source_Location_Trefoil	Image	Published	02/19/2023 10:54 AM
HRM Switch in OFF position	Image	Published	08/02/2022 5:05 PM

DET-HHD-STE-HRM-OP01

Use the handheld radiation monitor to detect nuclear and other radioactive (RN) material.

Equipment Hierarchy

Sensor Tech Handheld Radiation Monitor

Technician Level

Duration

Materials Required

DET-HHD-STE-HRM-RM01 Handheld Radiation Monitor Operational Test

Originators

Demboski, Erica

Tucker, Brian

Originating Organization

PNNL

Approver

Simons, Brian

Date of Origin

2022-05-01

Version

1.00

Step 1

Main Step

247 - 257 - Prepare instrument; Remark:

Step 00

786 - 219 - Verify there are no sources of radiation near instrument; Remark:7

Step 00

219 - Verify there are no sources of radiation near instrument

Verify there are no sources of radiation near instrument

4289 - 220 - Power on instrument; Remark:4287

Step 00

4287 - Select a mode for operation: AUDIO only

Select a mode for operation:

AUDIO only

4290 - 612 - Wait for instrument to complete start-up sequence; Remark:4286

Step 00

612 - Wait for instrument to complete start-up sequence

Wait for instrument to complete start-up sequence

4286 - The unit is ready for operation when the period flashes every 20 seconds....

The unit is ready for operation when the period flashes every 20 seconds.

HRM Displays a red dot in lower right corner

4291 - 319 - Perform operational test; Remark:4285

Step 00

319 - Perform operational test

Perform operational test

4285 - It is recommended to perform an operational test daily before use. DET-HHD-ST...

It is recommended to perform an operational test daily before use. DET-HHD-STE-HRM-RM01, Handheld Radiation Monitor Operational Test.

Step 2

Main Step

4284 - 2903 - Operation; Remark:

Step 00

4282 - 2904 - Wear instrument during shift; Remark:4281

Step 00

2904 - Wear instrument during shift

Wear instrument during shift

4281 - The HRM should be worn on the body, such as forearm, lower leg, or on the tor...

The HRM should be worn on the body, such as forearm, lower leg, or on the torso as appropriate for the mission. Instrument remains powered on at all times.

4283 - 4280 - Update background as needed; Remark:4278

Step 00

4280 - Update background as needed

Update background as needed

4278 - Background should be updated when:

Background should be updated when:

4279 - Moving to different surroundings Searching for high activi...

Moving to different surroundings
Searching for high activity sources of radiation
U appears in LED display

4308 - 1096 - Respond to alarms; Remark:4307

Step 00

4307 - When the instrument alarms, either move away from the source of radiation or ...

When the instrument alarms, either move away from the source of radiation or continue to locate the source.

4309 - 4305 - Follow standard operating procedures (SOPs); Remark:4304

4306 - Note : An alarm is indicated by a numeric value (1-9) in the gamma and/or neutron LE...

Type

Note

An alarm is indicated by a numeric value (1-9) in the gamma and/or neutron LED [light-emitting diode] display and a vibration or audible tone. If the gamma LED is slowly flashing 9, the dose rate is 120 micro-Sievert/hour (µSv/h) or greater.

Step 00