Mirion Technologies DRM Series Use and care manual

All information in this document is the exclusive property of Mirion Technologies (MGPI), Inc. and is not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
OPERATION & CALIBRATION MANUAL
DRM Family of
Wireless
Data Radiation Monitors
DRM-1, DRM-1D, DRM-2, DRM-2D, DRM-2E, DRM-2H, DRM-2EN
Document # 15-00044
Revision 10
December 2015

15-00044
Revision 10
December 2015
All information in this document is the exclusive property of Mirion Technologies (MGPI), Inc. and is not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
Revision Log
Revision # Date Revised
Pages Comments
0 July 2004 N/A Original issue.
1 March 2005 ALL Added DRM-1D information, specifications, calibration,
FCC information about WRM2, instructions on using
MMV software (removed AMPView), and section for
optional display unit and corrected typographic errors
(formatting). Changed title.
2 May 2005 6,11-13, and
30 Added outline drawings for the DRM-1/D and information about the automatic background subtraction
feature for the DRM-1D
3 October
2006
15 Added note about dipswitch settings for field use and
calibration, section 3.22
Better description of DRM-1D calibration, Section 9.1
4 July 2007 ALL Inclusion of DRM-2/2D, Power Saving Mode update,
Environmental & Solar Enclosure configurations, minor
editing through-out.
5 April 2008 ALL Added new features with firmware 071111 for DRM-1/2
for 4 threshold settings and selectable using the ‘ACK’
button on the DRM-1/2 display.Added new screen
shots of MMV for threshold settings and instructions
6 Sept. 2008 Page 11 Added WRM2 Radio information in DRM Specifications
section.
7 Dec. 2011 All
All
Cover
6
Changed RMV references to MMV.
Included references to DRM-2H
Inserted picture of DRM-2E.
Insert a paragraph noting the similarities between the
DRM-2 and DRM-2E.

15-00044
Revision 10
December 2015
All information in this document is the exclusive property of Mirion Technologies (MGPI), Inc. and is not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
Revision Log (cont’d)
Revision # Date
Revised
Pages
Comments
7
(cont’d)
10
9-12
11
12-13
13-14
19-22
24
25
29
34
42-43
44
53
59-62
68
Noted display and alarm properties for DRM-1D/2D
Specifications refer to 2D only.
Added accessory details.
Inserted DRM-2 Environmental Characteristics and
Dimensions.
Added specifications for the DRM-2H.
Added specifications regarding optional External Display
& Alarm.
Added drawings for the DRM-2, DRM-2H, and DRM-2E.
Added response time table for DRM-2H.
Inserted picture of DRM-2E with RTM-9135 external
display & alarm.
Added automatic range switching details for DRM-2H.
Added external display measurements for the DRM-2H.
Added DRM-2H calibration ranges.
Combined sections 9 and 10.
Added DRM-2H calibration tables.
Added CPS to mR/h conversion tables.
Updated Electronic Schematics
Removed Section 14.
8
Jan. 2012
7
10
12, 34
24
42
Changed DRM-2 and DRM-2H measuring ranges.
Changed DRM-2 measuring and display range to 999E.
Changed DRM-2H measuring and display range to
9,999 R/h.
Changed DRM-2H Fast Response Time setting to 9,999
R/h.
Changed DRM-2 and DRM-2H maximum ranges.

15-00044
Revision 10
December 2015
All information in this document is the exclusive property of Mirion Technologies (MGPI), Inc. and is not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
9
10
April 2012
Dec 2015
9
9, 10, 12, 13
11
13,31,43
13, 35
31
8
14-15
55-59
Defined measurement terminology.
Added reporting ranges.
Change DRM-2 highest measurement range.
Changed low end of DRM-2H measurement range to
0.05 mR/h and calibration points to low end fields to 0.05
mR/h.
Changed DRM-2H low end display range to 0.001 R/h.
Changed DRM-2H overflow to 10,000 R/h.
Added a brief introduction to the DRM-2EN.
Added DRM-2EN technical specifications
Added DRM-2EN calibration instructions

15-00044
Revision 10
December 2015
All information in this document is the exclusive property of Mirion Technologies (MGPI), Inc. and is not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
WRM-2 FCC COMPLIANCE
ANTENNA WARNING
FCC QUALIFICATIONS
Important: The WRM2 radio modules have been certified by the FCC for integration
into OEM products without any further certifications (as per FCC section
2.1091). Changes not expressly approved by Mirion (MGPI) Technologies
could void the user’s authority to operate this equipment.
Note: The WRM2 System utilizes a proprietary communication (WRM) protocol
and specific firmware identification for each component and is configured
for optimal performance.
Operation of the WRM2 system in a configuration not consistent with
MIRION settings, or modifications to hardware and firmware may result in
degraded system performance and loss of warranty.
CAUTION: Only the power supplies and batteries specified by MIRION should be used
with all DRM components. Non-approved power sources can result in
component damage or personal injury. Contact MIRION for additional
information!
This device complies with Part 15 of the FCC rules. Operation is subject to
the following conditions: (1) this device may not cause harmful interference and (2) this
device must accept any interference received, including interference that may cause
undesired operation, FCC ID Number: ‘our9xstream’.
This device has been tested with Reverse Polarity SMA and MMCX
connectors with the antennas that are supplied with the equipment. When integrated in the
OEM product, these fixed antennas require installation preventing end users from replacing
them with non-approved antennas. Any antennas not supplied by Mirion (MGPI)
Technologies must be tested to comply with FCC Section 15.203 for unique antenna
connectors and section 15 emissions.

15-00044
Revision 10
December 2015
All information in this document is the exclusive property of Mirion Technologies (MGPI), Inc. and is not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
Table of Contents
1. THE DRM FAMILY.......................................................................................................................8
2. DRM SPECIFICATIONS...............................................................................................................9
2.1. DRM-1 GENERAL (GM TUBE)........................................................................................................9
2.2. DRM-1D/2D CESIUM IODINE (TL) SPECIFICATIONS .....................................................................10
2.3. DRM-2 (GM TUBE)SPECIFICATIONS ............................................................................................11
2.4. DRM-2H SPECIFICATIONS.............................................................................................................13
2.5. DRM-2EN SPECIFICATIONS ..........................................................................................................14
2.6. OPTIONAL DRM EXTERNAL DISPLAY &ALARM...........................................................................16
2.7. WRM2 RADIO TRANSMITTER CHARACTERISTICS FOR THE DRM..................................................16
2.8. DRM-1 OUTLINE DRAWINGS ........................................................................................................17
2.9. DRM-1D OUTLINE DRAWINGS .....................................................................................................20
2.10. DRM-2 OUTLINE DRAWINGS.....................................................................................................21
2.11. DRM-2H OUTLINE DRAWINGS..................................................................................................23
2.12. DRM-2E OUTLINE DRAWINGS ..................................................................................................24
2.13. OVER THE AIR COMMUNICATIONS .............................................................................................25
2.14. RESPONSE TIMES FOR THE GM TUBES .......................................................................................25
2.15. DRM-1/2D RESPONSE TIMES FOR THE CSI(TL) DETECTOR ......................................................26
3. OPERATING INSTRUCTIONS..................................................................................................26
3.1. PREPARATION FOR USE..................................................................................................................26
3.2. STARTING-UP.................................................................................................................................27
3.3. METER CONNECTORS ....................................................................................................................28
3.4. POWER SUPPLY &BATTERY..........................................................................................................29
4. GENERAL FUNCTIONS.............................................................................................................30
4.1. DIPSWITCH SELECTOR ...................................................................................................................30
4.2. DIPSWITCH POSITIONS ...................................................................................................................30
4.3. DRM OPTIONAL EXTERNAL DISPLAY &ALARM...........................................................................35
4.4. BATTERY REPLACEMENT...............................................................................................................36
5. COMMUNICATION ....................................................................................................................37
5.1. COMMUNICATION..........................................................................................................................37
5.2. PROTOCOL.....................................................................................................................................37
6. COMMUNICATION PROTOCOL.............................................................................................37
6.1. SET METER PARAMETER VIA THE PC ............................................................................................39
7. SETTING METER PARAMETERS USING THE MMV SOFTWARE ................................41
7.1. SET PC COMMUNICATION PARAMETERS.........................................................................41
7.2. SET & DISPLAY METER PARAMETERS..............................................................................41
7.3. MMV OPERATING INSTRUCTIONS:.....................................................................................42
7.4. AUTOMATIC BACKGROUND OPTIONS: .............................................................................43

15-00044
Revision 10
December 2015
All information in this document is the exclusive property of Mirion Technologies (MGPI), Inc. and is not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
8. CALIBRATION SUMMARY FOR THE DRM-1/2...................................................................44
9. CALIBRATION GUIDELINES...................................................................................................46
9.1. SUMMARY FOR THE DRM-1/2D....................................................................................................46
9.2. CALIBRATION PROCEDURE FOR THE DRM-1/2, DRM-2H, AND DRM-1/2D.................................46
9.3. OPERATING INSTRUCTIONS............................................................................................................47
9.4. TEMPLATE &PARAMETERS SETUP ................................................................................................48
9.5. STARTING-UP THE CALIBRATION &LINEARITY PROCESS ..............................................................49
9.6. CALIBRATION ................................................................................................................................50
9.7. LINEARITY.....................................................................................................................................51
9.8. SAVE,LOAD AND PRINT CALIBRATION AND LINEARITY CERTIFICATE...........................................53
9.9. CPS TO MR/H CONVERSION TABLES .............................................................................................54
9.10. CALIBRATING THE DRM-2EN ...................................................................................................55
10. UPGRADING THE DRM FIRMWARE.....................................................................................58
11. DRM - LIST OF ELECTRONIC SCHEMATICS.....................................................................64
12. DRM - ENVIRONMENTAL ENCLOSURE CONFIGURATION ..........................................71

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as authorized in writing by Mirion Technologies (MGPI), Inc.
1. The DRM Family
1.1. General Description
The Data Radiation Monitors, DRM-1/2 and DRM-2H, are auto switching two GM-tube based dose
rate meters, and the DRM-1/2D is a sensitive CsI (Tl) scintillated coupled to a PMT. The DRM-1,
DRM-2, and DRM-2H are dose rate meters for detection, using state-of-the-art microprocessor-based
technology and combined with telemetry using the WRM2 900 MHz or 2.4 GHZ FHSS radio. The DRM
is designed for highly stable and accurate dose rate measurements from gamma radiation. The DRM-
1/2 (GM) measuring range is from 0.05 mR/h up to 999 R/h. The DRM-2H measuring range is from .05
mR/h up to 9,999 R/h, and the DRM-1/2D’s measuring range is from 0.001 mR/h up to 10 mR/h.
Note: The DRM-2E is similar to the DRM-2, with the only difference being that the DRM-2E has a
waterproof external probe, compared with the internal probe of the DRM-2. Thus, unless specifically
noted, any properties or directions included for the DRM-2 apply to the DRM-2E as well.
The DRM-2EN is an auto switching neutron based dose rate meter for detection, using state-of-the-art
microprocessor-based technology and combined with telemetry using the WRM2 900 MHz or 2.4 GHZ
FHSS radio. The DRM is designed for highly stable and accurate dose rate measurements from
neutron radiation from background (typical 0.05 mrem/h) to 1 rem/h. The external neutron detector is
connected to the DRM using the standard 30 ft. AMP cable.
The DRM is a lightweight and compact instrument with sophisticated software offering special features
and optimal performance for telemetry data. The wide dynamic range is obtained by the DRM-1/2 and
DRM-2H’s two GM-Tubes with automatic range switching and an automatic dead time correction,
according to the preset calibration. The DRM-1/2D’s sensitive range is obtained by CsI (Tl) scintillator
(30*30mm) coupled to PMT and an automatic dead time correction and back ground subtraction,
according to the preset calibration. A special averaging function smoothes the data reading and
maintains fast response time, while keeping the standard deviation at a minimum for the DRM-1/2,
DRM-2H, and DRM-1/2D.
Software is used to configure (MMV) and calibrate (RMC) the DRM family of detectors.
An automatic self-diagnostic procedure continuously checks both electronics and detectors and reports
any case of detector failure.
The DRM may be used in the following ways:
•by connecting the meter to a PC
•by connecting the meter to a DDC-16/AM-16 Area Monitor (wired)
•by using the internal WRM2 FHSS radio to transmit data
•by connecting the meter to an external WRM transmitter (wireless)
•by using an internal or externally connected network adapter
The meter includes four boards: HV board, CPU board, WRM2 radio and the board for the dual GM-
Tube detectors or a cesium iodine detector. A built-in RS-232 is the connection used for calibration and
configuration. A custom connector is needed when using the WRM external transmitter. The WRM2
FHSS radio is already included in the DRM-1/2(H) package and a base station (MIRION P/N: WR2-
9001) is needed for reception of telemetry data. A second DB-9 female connector is available for an
optional alarm and display unit for all DRM instruments.

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as authorized in writing by Mirion Technologies (MGPI), Inc.
1.2. Applications for GM-Tube (DRM-1, DRM-2, DRM-2H) and
CsI (DRM-1D, DRM-2D) Detectors
Perimeter & Boundary Surveillance
Vehicle Access Points
Turnstile entries
Collection of Survey Data for Real-time Mapping & Surveillance Software
General Area Monitoring
Hospital Emergency Room Entrances and CBRNE storage areas
Response vehicles
Event Monitoring
1.3. Definitions
The following terms are used in describing the measurement functionality of the DRM devices:
Measurement Range: The limits to what energy levels the DRM can reliably and accurately
read.
Display Range: The display range for the front LCD display of the DRM-2 series.
Reporting Range: The range for what the DRM can report to telemetry software (e.g.,
Soteira and WinWRM2).
2. DRM Specifications
2.1. DRM-1 General (GM Tube)
•Detector:
GM tube ZP-1301 (or equivalent) - high range
GM tube ZP-1201 (or equivalent) - low range
Optional GM tube ZP-1300 non-energy compensated – low range
•Measurement Ranges:
0.05 mR/h to 1,000 R/h (0.5 µSv/h to 10 Sv/h)
Automatic switching between the two GM tubes at
600 mR/h and 800 mR/h
•Reporting Range:
0.001 mR/h to 999 R/h
•Accuracy:
±10 % of reading, within the measuring range
•Energy Response (137Cs):
±20 % at 70 keV to 2 MeV

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as authorized in writing by Mirion Technologies (MGPI), Inc.
•Sensitivity (137Cs):
17 cps/mR/h (low range)
0.3 cps/mR/h (high range)
•Power Source:
External power supply and battery backup
External power supply: Input 120-250 Vac, Output 6 Vdc to 15 Vdc with locking
connector
Battery back-up: Three (3) 1.2v NiMH 2100mA rechargeable
Battery operating lifetime: Up to 12 hours of continuous operation
Power Saving Mode On/Off using Meter View Software
•Temperature Range:
Operation: -10°C to +50°C (15°F to 122°F)
Storage: -20°C to +60°C (-5°F to 140°F)
•Humidity Range:
10% to 95% RH (non condensing)
Enclosure Material Aluminum
•Dimensions:
7” L x 2.5” D x 4.25” W
Weight: 907 g (2 lbs)
•Optional Accessories:
External Display & Alarm (see Section 2.4)
Magnet Mounting Attachments
2.2. DRM-1D/2D Cesium Iodine (TL) Specifications
•Detector:
CsI (Tl) (30 x 30 mm) crystal optically coupled to PMT with 0.5 mm aluminum housing
and solid mu metal shield. With optional automatic background subtraction using the
MMV software.
•Measurement Range:
1 µR/h to 9,999 µR/h (0.001 mR/h to 9.999 mR/h)
Overflow Alarm for reading > 9999 µR/h
Overload for field > 1 R/h
Sensitivity: 6.8 cps/µR/h for 137-Cs
Optional : background subtraction via the MMV software
•Display Range (DRM-2D only):
0.01 mR/h to 9,999 mR/h
•Reporting Range:
0.001 mR/h to 9.999 mR/h