OPERATION & CALIBRATION MANUAL DRM Family of Wireless Data Radiation Monitors DRM-1, DRM-1D, DRM-2, DRM-2D Document # 15-00044 Revision 5 April 2008
15-00044 Revision 5 April 2008 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 RMV software (removed AMPView), and section for optional display unit and corrected typographic errors (formatting). Changed title.
15-00044 Revision 5 April 2008 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.
15-00044 Revision 5 April 2008 Table of Contents 1. DRM-1/2 and DRM 1D ...................................................................................................................6 1.1. General Description...........................................................................................................................6 1.2 Applications for GM Tube (DRM-1, DRM-2) and CsI (DRM-1D) Detectors............................7 2. DRM-1 Specifications ...........................................
15-00044 Revision 5 April 2008 10. Calibration Procedure for the DRM-1D/2D ................................................................................37 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 10.9 Preface .............................................................................................................................................37 Operating Instructions .....................................................................................................................
15-00044 Revision 5 April 2008 1. DRM-1/2 and DRM-1D 1.1. General Description The Data Radiation Monitor - DRM-1/2, is an auto switching two GM-tube based dose rate meter and the DRM1D is a sensitive CsI (Tl) scintillated coupled to a PMT. The DRM-1/2 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.
15-00044 Revision 5 April 2008 1.
15-00044 Revision 5 April 2008 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 Optional CsI (Tl) detector • Measuring Ranges : 0.05 mR/h to 1000 R/h (0.
15-00044 Revision 5 April 2008 • Optional Accessories Remote Display Unit (external visual & audible alarm) Magnet 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 RMV software. • Measuring Range 1uR/h to 9999 uR/h (0.001 mR/h to 9.
15-00044 Revision 5 April 2008 • 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.
15-00044 Revision 5 April 2008 Battery back-up: Three (3) 1.
15-00044 Revision 5 April 2008 2.4 DRM Outline Drawings The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 2.4 DRM Outline Drawings (continued) The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 2.4 DRM Outline Drawings (continued) DRM-1 Inside View The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
-00044 Revision 5 April 2008 2.5 DRM-1D Outline Drawings DRM-1D Inside View The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 2.6 Over the Air Communications 900 MHz or 2.4 GHz FHSS (Frequency Hopping Spread Spectrum) Radios with External Antenna (WRM2 system) – Base receiver required for use with WRM2 or WRM91, EXT-2000 External Transmitters and WRMPlus receiver. 2.7 Response Times for the GM Tubes Table 1 Response Time for Small Changes Radiation Field Response Range Time [mR/h] [sec.] < 0.5 45 0.5 - 1.5 30 1.5 - 2.5 20 2.5 - 6 10 6 - 12 6 12 - 24 4 20 - 60 3 60 - 800 2 0.6 - 1.2 R/h 5 1.
15-00044 Revision 5 April 2008 3. Operating Instructions 3.1 Preparation for Use Remove the instrument from the shipping container and check for any physical damage. In the case of damage, report it to the carrier and contact MGP Instruments. Caution: Do not attempt to install or operate damaged equipment since safety and performance may be affected. 3.2 Starting-up 3.2.1 Connect the antenna to the WRM2 PRSMA connector located on the top of the enclosure.
15-00044 Revision 5 April 2008 3.3 Meter Connectors 3.3.1 Connectors: The DRM-1 contains three connectors: 1. 2.5 mm External power supply connector (type L712RA supplied by Switch craft, center post is positive) 6 to 15v DC (+) Ground (-) 2. D-type 9 pin female for RS232 communication port 3.
15-00044 Revision 5 April 2008 3.3.2 External Connectors: Meter to PC RS232 Cable 2 3 5 D-type 9 pin female 3 2 5 D-type 9 pin male Meter to External Display & Alarm Unit (lengh 25') Display & Alarm Unit Meter 1 2 3 4 5 6 7 8 9 D-type 9 pin female 3.4 1 2 3 4 5 6 7 8 9 D-type 9 pin female Power Supply & Battery • External power supply type CINCON 418-TR1507-12 (15v) with locking plug (type 761K Switchcraft - center positive) • Input 120-250 VAC • Output 15 VDC 1.
15-00044 Revision 5 April 2008 4. General Functions 4.1 Dipswitch Selector To set the dipswitch, unscrew two screws located at the meter front panel and remove the dipswitch cover. The dipswitch (8 switches) is located on the meter’s front panel. Using these dipswitches you can setup two functions: a) Communication mode, and; b) Connect-disconnect the backup batteries. Dipswitches position: For the ON position, press the dipswitch downward.
15-00044 Revision 5 April 2008 • Set switch 7&8 to the OFF position only in case the meter is being stored. Important Note: For operational/configuration settings ensure dipswitches 1, 2, and 3 (dipswitch 3 is for transmitting data) are in the ON position. For field use ensure dip switches1, 2, 3, 7 and 8 are turned ON (7 and8 are for battery backup). 4.2.5 LED position and function LED Ext. power Color Red Tx. Battery Green Yellow Rate Yellow Function External power supply > 7.
15-00044 Revision 5 April 2008 4.2.6 Automatic Range Switching for the DRM-1/2: The detector includes two GM Tubes: Low range - ZP-1201 (or equivalent), and high range - ZP-1301 (or equivalent). In a field of 0.01 mR/h to 800 mR/h both GM tubes are connected and the field is measured by the low range GM tube. If the radiation field is higher than 800 mR/h, the low range detector is disconnected, and the radiation field is measured by the high range GM tube.
15-00044 Revision 5 April 2008 The ‘Power Saving Mode’ will be activated after the send code ‘8888’ (via RMV in the Background icon) is entered, sent and updated. If the DRM is set for a longer transmission interval (i.e.
15-00044 Revision 5 April 2008 The Interval time level is based on how long a unit can run without AC power, 99 seconds is the maximum transmission time interval. To check if the DRM is in Power Saving Mode press on the ‘GET BUTTON’ in the “Setup Device” window in the RMV software and the background window will be display ‘8888’ to signify that the DRM is in the Power Saving Mode. 4.2.10 Dose Rate Alarm Threshold Settings Dose threshold settings are configured via the RMV software (Version 4.
15-00044 Revision 5 April 2008 4.2.12 WRM91 or WRM EXT 2000 Transmitter (optional) WRM91 external radio transmitter can be connected to the DRM following these instructions: 1) Connect the DRM to the PC and run RMV software. 2) Set time interval to "0", and set baud rate to 300. 3) Connect the WRM adapter to the DRM's Communication connector. 4) Connect the WRM91’s RJ-22 connector to the WRM Adapter 5) The DRM will transmit the data to the WRM91/Plus receiver.
15-00044 Revision 5 April 2008 4.3 DRM-2 and Optional External Display & Alarm An optional external display ( part # RTM-9135) is available for remote locations of the read-out, audiable and/or visual alarms with and with an alarm acknowledge button. A 25 foot cable connects the display to the DRM via a D-type 9 pin connector and supplies the power to the remote display. The DB-9 connectors must be fasten securely for the display to operate properly.
15-00044 Revision 5 April 2008 4.3.1 DRM-2 and Optional External Display and Alarm Unit A 7 segment 4 digit display unit displaying in the following formats: Meter display format: Measuring reading 0.000 to 9.999 mR/h for the DRM-1D Measuring reading for the DRM-1: 1. 2. 3. 4. 5. 6. 0.001 to 9.99 10.0 to 99.9 100 to 999 1.0E to 9.99E 10.0E to 99.9E 100E to 999E For numbers 1 -3 the units will be mR/h For numbers 4 -6 (with E) the units will be R/h OFLO ALr.
15-00044 Revision 5 April 2008 5. Communication 5.1 Communication The communication between the DRM and PC can be performed in 3 ways: 1) Wireless Radio WRM2 located inside the meter. 2) Direct RS232 via the meter communication port (D-type 9 pin female connector using a Null Modem Adaptor). 3) WRM External Transmitter can be connected to the D-type 9 pin female connector via the AMP to WRM adapter. 5.
15-00044 Revision 5 April 2008 Byte 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Description LF N5 N4 N3 N2 N1 N0 Status Status D5 D4 D3 D2 D1 D0 D-1 30H X Y Z T W Status 3 lsb CS msb CS lsb CR See Table below for Status 9 Status Message - Byte 9 Overflow Threshold Alarm Loss of external power Low Battery or battery OFF Error with Detector 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Status Code 30H 31H 32H 33H 34H 35H 36H 37H 38H 39H 41H 42H 43H 44H 45H 46H
15-00044 Revision 5 April 2008 6.1 Set Meter Parameter via the PC The parameters are set via the PC using the RMV software. PC to meter 0 LF 1 Status 2 D5 3 D4 4 D3 5 D2 6 D1 7 D0 8 0F 9 0F 8 0F 9 0F 10 CR Status byte: Read meter parameters=30H Set Baud=31H Set Time=34H Set Threshold alarm value.=35H Set Dose status = 37H Set meter serial no. = 38H 6.1.
15-00044 Revision 5 April 2008 6.1.2 Set down load interval Time=34H PC to meter 0 1 2 LF 34 Sec* 1000 3 Sec*100 4 Sec* 10 5 sec 6 20 7 20 8 0F 9 0F 10 CR The interval time can be set from between 0 and 99 6.1.3 Set Threshold alarm value=35H PC to meter 0 1 2 LF 35 X 3 Y 4 Z 5 W 6 T 6 20 7 0F 8 0F 9 CR 7 20 8 0F 9 0F 10 CR 6 D1 7 D0 8 0F 9 0F 10 CR 6 20 7 20 8 0F 9 0F 10 CR 6.1.4 Set Dose status = 37H PC to meter 0 1 2 LF 37 D-30 E-31 3 2 0 4 20 5 20 6 20 6.1.
15-00044 Revision 5 April 2008 7. Setting Meter Parameters using the RMV Software Set PC communication parameters Select meter type: AMP + DRM Set & Display Meter Parameters To set new parameter value, type the required value on each window and then click on the Send button for each parameter. i.e.: Interval = 10 Threshold = 1000 Send Send The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 RMV Operating Instructions: 1) Start the RMV software by CLICKING on the CALIBRATION button on the RMV software connect the DRM to the P.C. via the RS232 connection with a null modem connector, ensure dipswitches 1 and 2 on in the ON position. 2) Set the correct Communication port 3) Select meter type, AMP+DRM 4) Verify that the communication between the meter and the PC is okay.
15-00044 Revision 5 April 2008 Note: Correlation between the factory serial number and the Telemetry ID # AMP- 50 AMP-100 AMP-200 DRM-1 Factory S.N.
15-00044 Revision 5 April 2008 is stored and the display is showing the net rate. 3. Connect the meter to PC (using the null modem adapter) and run the RMV software, in the Amp setup function type desirable ‘9999’ the background value. 8. Calibration Summary for the DRM-1/2 8.1 Preface 8.1.1 Calibration Factors To improve the linearity, the DRM-1 includes five calibration factors: The two lower factors are for the low range GM tube, from 0.
15-00044 Revision 5 April 2008 Last N = previous measurement reading F average = (1-x)* F4 + x* F5 N(R/h) = [n*F1 + dead time correction {n*F average}/300 The following graph illustrates the ranges over which F2, F3 and F average are used as the DRM-1’s dead time correction factor: Dead Time Correction F3 F2 F Field [R/h] 300 400 1000 9. Calibration Summary for the DRM-1D/2D 9.1 Preface 9.1.
15-00044 Revision 5 April 2008 10. Calibration Procedure for the DRM-1/2D 10.1 Preface The DRM-1/2 and the DRM-1D can be calibrated via the RS232 communication port with a NULL modem adapter. Switch to the ON position dipswitches 1&2 for RS232 and the calibration will be performed by using the Meter Calibration software. If the radiation field is greater than 10 mR/h, the software will automatically enable the setting of the appropriate factor, depending on the field intensity for the DRM-1/2.
15-00044 Revision 5 April 2008 4. Click OK, the program enters the main window. 5. The caption in the main window (linearity report) displays the previous template. In the displayed template the operator executes the required operations to complete the calibration and linearity. 6. To start the procedure, click File/New Report. 10.3 Template & Parameters Setup The template includes setup parameters and instrument parameters. To select or create a new template, proceed as follows.
15-00044 Revision 5 April 2008 • • • • • Source 1 - Enter source type used in the calibration facility. Source 2 - Enter source type used in the calibration facility. Calibration due - Set the calibration interval. Click OK to save data and quit. Click Cancel to cancel data changes and quit. Select Parameters / Template from the pull down menu.
15-00044 Revision 5 April 2008 10.4 Starting-up the Calibration & Linearity Process 1) 2) 3) 4) 5) 6) Connect the DRM to the computer via the appropriate Comm. Port using a NULL Modem adaptor (according to the selected port in the set up program). Turn the meter on and ensure dipswitches 1 and two are in the ON position Execute the RMC file. Enter User name up to 12 characters i.e., jsmith. Enter Password, type mgpi (in small letters).
15-00044 Revision 5 April 2008 10.5 Calibration Select Instrument/Calibrate… from the pull down menu. The calibration menu will be displayed. (1) Instrument reading – Current dose rate reading (2) Factor Num. - Factor number for the calibration. The listing in this screen depends on the amount of calibration points available from the instrument. If the “Auto” radio button is selected the software will recognize the filed value and allow for calibration of the pertinent point.
15-00044 Revision 5 April 2008 (6) New Factor: - The New Factor will be displayed and is a function of the actual current reading against the Radiation field that was typed into the window. If the calculated factor value is lower than 0.6 or higher than 1.4, calibration will be not performed. (7) Force 1 – Select in case the operator wants to force the calibration factor to 1.00. Use this when an incorrect factor was stored. (8) After the factor changing, press Update Factor.
15-00044 Revision 5 April 2008 10.6.1 Linearity Report Window Description Src – Type of source employed for calibration and linearity. The source type is defined in the set-up parameters. Meas.Point - Radiation field where linearity tests are performed. Unit - Measurement units. Distance and Att. - Distance between detector and source and attenuator factor. As Found - Instrument reading prior to calibration. As Left - Instrument reading after calibration.
15-00044 Revision 5 April 2008 10.7 Save, Load and Print Calibration and Linearity Certificate 10.7.1 Save and Print Current Calibration and Linearity Certificate 1) 2) 3) 4) 5) Click File / Save for saving the Calibration and Linearity Certificate in a file. Click File / Print for Calibration and Linearity Certificate printout. Click Graph to display Linearity graph. Click Plot and select Linearity or Relative Error graph. Click File / Print for Linearity graph printout. 10.7.
15-00044 Revision 5 April 2008 10.8 DRM-1/2 CPS to mR/h Conversion Table Table 1 - Low Range GM tube • Input Frequency [Hz] Display [mR/h] 17 170 2000 4000 5000 6000 6300 1.00 10.0 141 365 534 730 804* Table 2 - High Range GM tube Input Frequency [Hz] 300 3200 10.000 30.000 40.000 50.000 60.000 75.000 Display [R/h] 1.00 10.7 39.2 183 323 525 839 O.F. (overflow) Switches to high range detector Note: These results are valid only when all factors equal to 1.
15-00044 Revision 5 April 2008 10.9 DRM-1D/2D CPS to mR/h Conversion Table Input Frequency [KHz] 1 2.8 4.9 8.75 11.9 14.6 16.9 19.1 21.1 22.7 24.4 25.8 28.5 30 Display [mR/h] 0.147 0.397 0.795 1.590 2.385 3.180 3.975 4.770 5.565 6.360 7.155 7.950 9.540 OFLO These results are valid only when F1 is equal to 1 The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 11. Upgrading the DRM firmware Note: Follow these directions carefully (contact MGPI for assistance) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. Install the DRM Firmware Updater software by unzipping the files to a known directory and clicking on the ‘Setup’ in the ‘Installer’ directory.
15-00044 Revision 5 April 2008 Firmware Update Screen Stop Start Com Dialog screen New *.hex file Firmware “Updated” Screen The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 Figure 2. DRM-1 The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 Figure 3. DRM-1D The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 12. DRM - List of Electronic Schematics Note: The following schematics are for information only and are not subject to revision control. DRW #12850-40-00 CPU - PC #2142 DRW #12850-40-00 Mother Board PC #2143 DRW #12852-40-00 DRM WR, GM Detector, PC #2003 DRW #12852-40-00 DRM WR, PMT HV PC #2173 DRW #12852-40-00 DRM WR, ALARM & DISPLAY PC #2175 The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 On Off 2 17-05- 2004 DWG: 13840 40 00 MODEL: Ankry N Ben Ami E. Eli V. 13840 FILE: pcb2142 Zchut S. P.C.
15-00044 Revision 5 April 2008 SIGNATURE VER. 1 2 0 REV. 0 27 05 2003 Eli V. Eti B A Shlomo Z. Ankry N 05 02 2003 Eli V. Eti B A Shlomo Z. Ankry N DRM0405002 DRM MOTHER BOARD DWG: 13840 41 00 The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent. MODEL: 53 13840 FILE: pcb2143 P.C.
15-00044 Revision 5 April 2008 VER
15-00044 Revision 5 April 2008 13. DRM - Environmental Enclosure Configuration Environmental Enclosure Assembly: Figure 13-1 11 10 The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 Environmental Enclosure Assembly (Figure 14-1) 1 2 3 4 5 6 7 8 9 10 11 Mounting Plate Circuit Board Power Supply Telemetry Antenna Antenna Cable Strobe Light DRM-1/D Monitor Power Cable Environmental Enclosure Audible Buzzer Acknowledge Pushbutton The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 14. DRM Solar Configuration Solar Panel and Enclosure Assembly: Figure 14-1 1 7 2 6 4 3 8 5 The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 Internal Enclosure Assembly: Figure 14-2 9 1 8 2 3 4 7 6 5 The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
15-00044 Revision 5 April 2008 Solar Panel & Enclosure Assembly (Figure 14-1) 1 2 3 4 5 6 7 8 Solar Panel element Power Cable (Solar Panel) Environmental Enclosure Door Locking Mechanism Telemetry Antenna Bushings (4) Mounting bracket for Solar Panel element Mounting plate Internal Enclosure Assembly (Figure 14-2) 1 2 3 4 5 6 7 8 9 Mounting plate Interface Board Sealed Lead Acid Battery RPSMA to N-Type Antenna Cable Telemetry Antenna Power Cable Connector DRM-1 Power Connector DRM-1 Detector RPSMA Anten
15-00044 Revision 5 April 2008 Interface Board: Figure 14-3 6 1 5 2 3 4 Interface Board (Figure 14-3) 1 2 3 4 5 6 LCD Display Pushbutton – display Solar Power draw (voltage) Pushbutton – display Battery Voltage Emergency Battery (power) connector Power – Charging - Connector Main On-Off Power Switch The publication, translation or reproduction, either party or wholly, of this document are not allowed without our written consent.
SIGNATURE 1 0 28-12-04 Wolaski E. BEN-AMI E. ZECHUT S. ANKRI N. DRM1/DRM1D HV - SUPPLAY DWG: 13845-40-00 MODEL: 13845 FILE: pcb2173 P.C.
SIGNATURE VER 3 REV 0 VER 2 REV 0 1 0 19-07-05 08-02-05 Wolaski E. Wolaski E. BEN-AMI E. ZECHUT S. BEN-AMI E. ZECHUT S. ANKRI N. ANKRI N. 04-01-05 Wolaski E. BEN-AMI E. ZECHUT S. ANKRI N. DRM0507003 DRM0502001 DRM1/DRM1D Alarm Display DWG: 13845-40-00 MODEL: 13845 FILE: P.C.
