OPERATION & CALIBRATION MANUAL
DRM Family of
Wireless
DRM-1, DRM-1D, DRM-2, DRM-2D, DRM-2E, DRM-2H, DRM-2EN
Data Radiation Monitors
Document # 15-00044
Revision 10
December 2015
All information in t hi s document is the exclusi ve propert y of Mirion T echnologies (MGPI), Inc. and i s not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
December 2015
(formatting) . Changed title.
feature for the DRM-1D
Better description of DRM-1D calibration, Section 9.1
editing through-out.
shots of MMV f or threshold settings and instructions
section.
DRM-2 and DRM-2E.
15-00044
Revision 10
Revision Log
Revision # Date
0
1
2
3
4 July 2007 ALL Inclusion of DRM-2/2D, Power Saving Mode update,
July 2004 N/A Original issue.
March 2005
May 2005 6,11-13, and
October
2006
Revised
Pages
ALL
30
15
Comments
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
Added outline drawings for the DRM-1/D and
information about the automat ic background subtraction
Added note about dipswitch settings for field use and
calibration, section 3.22
Environmental & Solar Enclosure configurations, minor
5 April 2008 ALL Added new features with firmware 071111 for DRM-1/2
for 4 threshold settings and select able using the ‘ACK’
button on the DRM-1/2 display. Added new screen
6 Sept. 2008 Page 11 Added WRM2 Radio information in DRM Specifications
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
All information in t hi s document is the exclusi ve propert y of Mirion T echnologies (MGPI), Inc. and i s not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
December 2015
Revised
Pages
7
10
Noted display and alarm properties for DRM-1D/2D
8
Jan. 2012
7
42
Changed DRM-2 and DRM-2H measuring ranges.
Changed DRM-2 and DRM-2H maximum ranges.
15-00044
Revision 10
Revision Log (cont’d)
Revision # Date
(cont’d)
9-12
11
12-13
13-14
19-22
24
25
29
34
42-43
44
53
59-62
68
Comments
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.
All information in t hi s document is the exclusi ve propert y of Mirion T echnologies (MGPI), Inc. and i s not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
10
12, 34
24
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.
December 2015
9
April 2012
9
Defined measurement terminolog y.
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Revision 10
10
Dec 2015
9, 10, 12, 13
11
13,31,43
13, 35
31
8
14-15
55-59
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
All information in t hi s document is the exclusi ve propert y of Mirion T echnologies (MGPI), Inc. and i s not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
15-00044
December 2015
Revision 10
WRM-2 FCC COMPLIANCE
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’.
ANTENNA WARNING
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.
FCC QUALIFICATIONS
Important: The WRM2 radio modules have been certi fied by the FCC for integration
into OEM products without any further certifications (a s 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 firmw are identification for each component a nd i s configured
for optimal performance.
Operation of the WRM2 system in a configuration not consiste nt 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 resul t i n
component damage or personal injury. Contact MIRION for additional
information!
All information in t hi s document is the exclusi ve propert y of Mirion T echnologies (MGPI), Inc. and i s not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
15-00044
December 2015
Revision 10
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
All information in t hi s document is the exclusi ve propert y of Mirion T echnologies (MGPI), Inc. and i s not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
15-00044
December 2015
Revision 10
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.
December 2015 Page 8 of 73
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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) scint illated coupled t o a PMT. The DRM-1,
DRM-2, and DRM-2H are dose rate meters for detect ion, using state-of-the-art micropr ocess or -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 fr om gamma radiation. The DRM1/2 (GM) measuring range is from 0.05 mR/h up t o 999 R/h. The DRM-2H measuring rang e is from .05
mR/h up to 9,999 R/h, and the DRM-1/2D’s measuring range is f r om 0.001 mR/h up to 10 mR/h.
Note: The DRM-2E is similar t o the DRM-2, with the only difference being that the DRM-2E has a
waterproof external probe, compared with the internal pr obe 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 stat e-of-the-art
microprocessor-based technology and combined with telemetr y using the WRM2 900 MHz or 2.4 GHZ
FHSS radio. The DRM is designed for highly stable and accurate dose rate m easurements from
neutron radiation from back ground (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 f eatures
and optimal performance f or t elem et r y 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 cor r ec t ion and back ground subtraction,
according to the preset calibration. A spec ial averaging function smoothes the data reading and
maintains fast response time, while keeping t he s t andar d deviation at a m inimum 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 proc edure c ontinuously checks bot h electronics and det ector s and report s
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 W RM2 FHSS radio to transm it dat a
• 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 boar d, WRM2 radio and the board for t he dual GMTube detectors or a cesium iodine detector. A built-in RS-232 is the connect ion 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 t elemetry data. A second DB-9 female connector is available for an
optional alarm and display unit for all DRM instruments.
All information in t hi s document is the exclusi ve propert y of Mirion T echnologies (MGPI), Inc. and i s not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
December 2015 Page 9 of 73
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1.2. Applications for GM-Tube (DRM-1, DRM-2, DRM-2H) and
CsI (DRM-1D, DRM-2D) Detectors
Perimeter & Boundar y Surveillance
Vehicle Access Points
Turnst ile ent r ies
Collection of Survey Data for Real-time Mapping & Surveillance Software
General Area Monitoring
Hospital Emergenc y Room Entr ances 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 r ange
• Energy Response (137Cs):
±20 % at 70 keV to 2 MeV
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as authorized in writing by Mirion Technologies (MGPI), Inc.
December 2015 Page 10 of 73
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• 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 t o 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. W it h 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 subtrac t ion 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
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as authorized in writing by Mirion Technologies (MGPI), Inc.
December 2015 Page 11 of 73
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• Dimensions:
DRM-1D: 7" L x 3.5" D x 4.25" W
DRM-2D: 10.25” L x 4.28” D x 4.88” W
• Display – LCD Readout (DRM-2D only):
4 digits for accurate and easy display
Detector failure
Low battery
Overflow
4 Threshold Settings
• Audio (DRM-2D only):
Two internally mounted piezo-electric elements (used for alarm functions)
• Accuracy (137Cs):
±10 % of reading, within the measuring r ange
• Energy Response:
45 KeV to 2 MeV
• CsI Sensitivity (137Cs):
6.8 cps/µR/h
• Power Source:
External power supply and battery backup
External power supply: Input 120-250 Vac, Output 9 to 15 Vdc with locking connector
Battery back-up: Three (3) 1. 2v NiMH rechargeable AA batteries
Battery operating lifetime: Up t o 8 hour s of continuous operation (with optional Alarm
and Display Unit: 4 hours)
Power Saving Mode On/Off using Meter View Software
• Temperature Range:
Operation: -10°C to +50°C (15°F to 122°F)
Stor age: -20°C to +60°C (-5°F to 140°F)
• Humidity Range:
10% to 95% RH (non condensing)
Enclosure Material Aluminum
• Optional Accessories:
External Display & Alarm (see Section 2.4)
Magnet Mounting Attachments
2.3. DRM-2 (GM Tube) Specifications
• 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
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as authorized in writing by Mirion Technologies (MGPI), Inc.
December 2015 Page 12 of 73
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• 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
• Display Range:
0.01 mR/h to 999E (999,000 mR/h)
• Reporting Range:
0.001 mR/h to 999 R/h
• Accuracy:
±10 % of reading, within the measuring r ange
• Energy Response (137Cs):
±20 % at 70 keV to 2 MeV
• 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 rechargeable AA batteries
Battery operating lifetime: Up to 12 hours of continuous operation
Power Saving Mode On/Off using Meter View Software
• Display – LCD Readout:
4 digits for accurate and easy display
Detector failure
Low battery
Overflow
4 Threshold Settings
• Audio:
Two internally mounted piezo-electric elements (used for alarm functions)
• Measurement Units:
mR/h
• Controls:
Alarm Acknowledgment push-button
DIP Switches for functionality
• Temperature Range:
Operation: -10°C to +50°C (15 °F to 122°F)
Storage: -20°C to +60°C (-5°F t o 140°F)
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as authorized in writing by Mirion Technologies (MGPI), Inc.
December 2015 Page 13 of 73
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• Humidity Range:
10% to 95% RH (non condensing)
Enclosure Material Aluminum
• Environmental Characteristics:
DRM-2E External Probe: Waterproof in up to 50 feet (15.24 m) of water.
• Dimensions:
Control Unit: 10.25” L x 4.28” D x 4.88” W
External Probe (DRM-2E only): 9.5” L x 1.75” W attached to CU with ≤300′ AMP cable.
• Optional Accessories:
External Display & Alarm (see Section 2.4)
Magnet Mounting Attachments
2.4. DRM-2H Specifications
• Detector:
GM tube 4G60M (or equivalent) - high r ange
GM tube ZP-1201 (or equivalent) - low rang e
Optional GM tube ZP-1300 non-energy compensated - low range
• Measurement Ranges:
0.05 mR/h to 9,999 R/h (0.5 µ Sv/h to 99.99 Sv/h)
Automatic switching between the two GM tubes at
1,000 mR/h and 1,500 mR/h
• Display Range:
0.001 R/h to 9,999 R/h
• Reporting Range:
0.001 mR/h to 9,999 R/h (0.01 µSv/h to 99.99 µSv/h)
• Accuracy:
±10 % of reading, within the measuring r ange
• Energy Response (137Cs):
±20 % at 70 keV to 2 MeV
• Sensitivity (137Cs):
17 cps/mR/h (low range)
77 c ps/R/h (high range) (DRM-2H)
• 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 rechargeable AA batteries
Battery operating lifetime: Up to 12 hours of continuous operation
All information in t hi s document is the exclusi ve propert y of Mirion T echnologies (MGPI), Inc. and i s not to be disclosed, reproduced, or used except
as authorized in writing by Mirion Technologies (MGPI), Inc.
Power Saving Mode On/Off using Meter View Software
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• Display – LCD Readout:
4 digits for accurate and easy display
Detector failure
Low battery
Overflow
4 Threshold Settings
• Audio:
Two internally mounted piezo-electric elements (used for alarm functions)
• Measurement Units:
R/h
• Controls:
Alarm Acknowledgment push-button
DIP Switches for functionality
• Temperature Range:
Operation: -10°C to +50°C (15 °F to 122°F)
Storage: -20°C to +60°C (-5°F t o 140°F)
• Humidity Range:
10% to 95% RH (non condensing)
Enclosure Material Aluminum
• Environmental Characteristics:
DRM-2E External Probe: Waterproof in up to 50 feet (15.24 m) of water.
• Dimensions:
Control Unit: 10.25” L x 4.28” D x 4.88” W
• Optional Accessories:
External Display & Alarm (see Section 2.4)
Magnet Mounting Attachments
2.5. DRM-2EN Specifications
• Detector:
PRESCILA proton recoil scintillator
• Neutron Energy Response
Thermal to 100 MeV
• Measurement Range:
0.05 mrem/h to 1 rem/h
• Sensitivity:
approximately 350 cpm/mrem/hr (
241
AmBe)
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• Angular Dependence:
within 15% over wide range of energies
• Gamma Rejection
0 – 100 mrem/h ɣ: ≤ 2 mrem/h neutron displayed
100 mrem/h – 200 mrem/h ɣ: ≤ 3 mrem/h neutron displayed
• Operating Voltage:
typically 500-700 volts
• Connector
Ikelite 5 pin female
• Detector Cable Length
10 – 100 feet
• External Probe Construction:
aluminum housing with black powder-coat finish and an ergonom ic foam grip
• Display – LCD Readout:
4 digits for accurate and easy display
Detector failure
Low battery
Overflow
4 Threshold Settings
• Audio:
Two internally mounted piezo-electric elements (used for alarm functions)
• Measurement Units:
mrem/h
• Controls:
Alarm Acknowledgment push-button
DIP Switches for functionality
• Temperature Range:
Operation: -10°C to +50°C (15 °F to 122°F)
Storage: -20°C to +60°C (-5°F t o 140°F)
• Dimensions:
10.125 x 4.25 x 4.25 in. (25.7 x 10.8 x 10.8 cm) (H x W x L)
• Weight:
5 lbs (2.2 kg)
• CE Certifie d
Yes
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as authorized in writing by Mirion Technologies (MGPI), Inc.
December 2015 Page 16 of 73
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2.6. Optional DRM External Display & Alarm
• Display Range:
Same as parent DRM
• Power Source:
DRM via a cable connection with a D-type 9 pin connector
• Display – LCD Readout:
4 digits for accurate and easy display
4 Threshold Settings
• Audio:
One externally mounted piezo-electric element (used f or alar m functions)
• Measurement Units:
mR/h
• Controls:
Alarm Acknowledgment push-button
• 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:
Control Unit: 8.56” L x 2.4” D x 4.4” W
2.7. WRM2 Radio Transmitter Characteristics for the DRM
10.25” L x 4.28” D x 4.88” W
Transmit power output 100 mW (900 MHz), 50 mW ( 2.4 GHz), 3.5 mW (868 MHz)
Receiver sensitivity -110 dBm (900 MHz) and –105 dBm (2.4 GHz)
868 MHz, 900 MHz or 2.4 GHz spread spectrum hopper (FHSS)
Range for the 900 MHz unit 1500’ (500 m) indoors-industrial environment, 2 m iles ( 3. 2
km) outdoors RF line-of-sight with standard dipole antenna, up to 20 miles (32 km) with
high gain directional antenna
Range for the 2.4 GHz unit 600’ (200 m) indoor s, 1.5 (2.4 km) miles outdoors with RF
line-of-sight w/ dipole antenna, up to 10 m iles (16 km) w/ high gain antenna
Over the air data stream at 19,200 BAUD
Addressable from 0 to 65,000
FCC approved, IC Certified, 2.4 GHz and 868 MHz are CE marked
Programmable transmission intervals from 1 sec to 16 sec.
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as authorized in writing by Mirion Technologies (MGPI), Inc.
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2.8. DRM-1 Outline Drawings
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as authorized in writing by Mirion Technologies (MGPI), Inc.
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DRM-1 Outline Drawings (continued)
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as authorized in writing by Mirion Technologies (MGPI), Inc.
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DRM-1 Outline Drawings (continued)
DRM-1 Inside View
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as authorized in writing by Mirion Technologies (MGPI), Inc.
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2.9. DRM-1D Outline Drawings
DRM-1D Inside View
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as authorized in writing by Mirion Technologies (MGPI), Inc.
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2.10. DRM-2 Outline Drawings
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as authorized in writing by Mirion Technologies (MGPI), Inc.
December 2015 Page 22 of 73
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DRM-2 Outline Drawings (continued)
TOP VIEW
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as authorized in writing by Mirion Technologies (MGPI), Inc.
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