Canberra UltraRadiac User Manual Download Page 62

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Stay Time is calculated by dividing (the High
Dose Alarm Setpoint minus the already accu-
mulated Dose) by the current Dose Rate, then
converting the result to minutes.

If the display reads 999, the maximum, your
Stay Time is at least 16.5 hours.

WARNING

If the Dose Rate goes up, your
remaining Stay Time will go
down.

You should check your Stay
Time frequently when you are in
the presence of radiation.

Summary of Contents for UltraRadiac

Page 1: ...UltraRadiac Personal Radiation Monitor User s Manual 9236123G...

Page 2: ...mission to regulatory or legal authorities pursuant to the purchaser s legitimate business needs No material in this document may be copied by any third party or used for any commercial purpose or for...

Page 3: ...7 Reading the Alarm Thresholds 7 Changing the Alarm Indicators 8 Using the Backlight 8 3 Controls and Indicators 9 The Function Keys 10 The Battery Life Indicators 11 Attaching the Belt Clip 12 The Ca...

Page 4: ...Thresholds 26 Changing the Rate Alarm Indicators 27 Changing the Rate Alarm Thresholds 27 The Dose Mode 30 The Dose Alarms 31 High Threshold 31 Low Threshold 32 Reading the Dose Alarm Thresholds 32 Ch...

Page 5: ...g 40 6 Maintenance Procedures 41 Cleaning the Unit 41 The Batteries 41 Installing or Replacing the Batteries 42 The Battery Compartment 44 Latching the Compartment Door 46 A Specifications 47 Features...

Page 6: ...B Default Alarm Settings 52 C Display Units 54 D Glossary 55 E Disposing of This Equipment 57 iv...

Page 7: ...Monitor Note Operational procedures are the respon sibility of the UltraRadiac s users In structions provided in this manual are how to s not procedural recommen dations Your UltraRadiac can measure a...

Page 8: ...The Radiation Units Depending on the model your UltraRadiac is factory set to display the Rate and the Dose in one of these units of radiation measurement R roentgen a measure of radiation exposure Sv...

Page 9: ...Logging Chapter 5 Setting Up the Unit describes them and tells you how to set and enable the Rate alarms and the Dose alarms Maintenance Procedures Chapter 6 Maintenance Procedures lists the UltraRad...

Page 10: ...s displayed Release ON OFF In a few seconds the instantaneous rate will be displayed with the word RATE at the top left of the screen If a or a blinking BAT indicator ap pears in the display or if the...

Page 11: ...R TEST key to turn off the vibrator The audio if enabled and visual alerts will continue until the Rate falls below the High Rate Alarm threshold At that time press the CLR TEST key to turn off the al...

Page 12: ...ted Dose on page 7 Checking Your Stay Time Press ALARM to see the number of min utes you can safely stay in the area at the current Dose Rate Specific information on Stay Time is given on page 55 WARN...

Page 13: ...ing the Alarm Thresholds Press ALARM RATE or ALARM DOSE You ll see an H for High Level Alarm displayed To read the Low Level Alarm setting press the RATE DOSE key again the display will show an L Pres...

Page 14: ...s the CLR TEST key to access the selected Hor L indicators Repeatedly press the ALARM key until you see the desired combination of indi cators AUDio VISual vibrator or no in dicators Using the Backlig...

Page 15: ...This is a brief overview of the UltraRadiac s controls and indicators and its protective case Each of the controls and indicators is covered in detail in the remaining sections of the manual Figure 1...

Page 16: ...he unit on or off RATE Press to change to the Rate Mode DOSE Press to change to the Dose Mode ALARM Press to see the Stay Time the number of minutes you can safely stay in the area at the current Dose...

Page 17: ...iac has two battery life indica tors See The Batteries on page 41 for in structions on changing the batteries If a blinking is displayed the unit has stopped functioning Replace the batter ies before...

Page 18: ...threaded inserts at the top of the unit s rear panel Note To prevent crossthreading damage in sert each screw loosely then tighten them alternately a few turns at a time Do not overtighten The Carryin...

Page 19: ...ver the front of the case w Pull the narrow strap across the top flap e Secure the narrow strap to both the top flap and the side of the case r Thread your belt through the slots in the belt loop Figu...

Page 20: ...in stall its batteries See The Batteries on page 41 for instructions Turning the Unit On Press and hold the ON OFF key until the dis play appears then release the key The unit will display the numbers...

Page 21: ...background radiation will cause the unit to display a low reading 1 To switch to the Dose Mode press the DOSE key Press the RATE key to return to the Rate Mode The rate units indicator R hr will blink...

Page 22: ...xposure rates the display will change to mR milliroentgens With large exposure rates it will show just R It s important to understand these units because each one is 1000 times greater than the previo...

Page 23: ...2 Display Test Sequence A set of numbers in the following order will appear Check that all of the num bers are exactly as shown below Figure 4 The Test Display 2 The GN located in the upper right corn...

Page 24: ...he unit passed all tests A blinking 0 indicates a failure contact your local Canberra Service Center Press the CLR TEST key to return to Rate Mode or wait about 10 seconds Checking the Alarm At any ti...

Page 25: ...Ds should turn on If the optional vibrator alarm is in stalled the unit will vibrate when any of these three keys is pressed Checking the Function Keys When the 000 display appears during the Testing...

Page 26: ...e Mode is operational A blinking 0 indicates a failure contact your local Canberra Service Center The unit will return to the Rate Mode in about ten seconds Backlight Test Press the LIGHT key the disp...

Page 27: ...layed briefly When you see release both keys You ll see the SLEEP indicator at the top of the screen Figure 5 To wake the unit press and hold the ON OFF key until the SLEEP indicator disappears The un...

Page 28: ...Operational Veri fication Tests contact your local Canberra Service Center GM Tube Failure Indication If the unit s Geiger Mueller tube should stop counting the display will flash showing three rows...

Page 29: ...ime from two to five seconds Operation of the UltraRadiac is otherwise unchanged Error Displays Above 500 R hr 5 0 Sv h the upper three segment bar on the display will begin flashing to indicate that...

Page 30: ...alarms This is applicable only if the functions were not disabled by the optional Model S900 UltraRadiac Setup Software CAUTION To make your changes permanent you must go through the entire setup sequ...

Page 31: ...rms There are two Rate Alarm Thresholds Low Rate for a minor hazard and High Rate for a severe hazard The alarm indicators will remain enabled as long as you remain in the radiation area that triggere...

Page 32: ...ld Figure 7 Visual Enabled The RATE and ALARM indicators and the left LED will flash slowly Audio Enabled The audio will beep slowly Optional Vibrator Enabled The unit will vibrate The optional Vibrat...

Page 33: ...i cally scrolling horizontal bar Changing the Rate Alarm Indicators Press the ALARM and RATE keys You ll see an H for High Level Alarm displayed To change the Low Level indicators press the RATE key a...

Page 34: ...d the display will alternate be tween the threshold value and a verti cally scrolling horizontal bar Changing the Alarm Indicators To choose one or more of the alarm indicators for the selected alarm...

Page 35: ...imal point location and threshold unit indication The left most digit will begin to flash Repeatedly press the RATE key until the desired value of the digit is dis played Press the CLR TEST key to loc...

Page 36: ...de or wait about 10 sec onds The Dose Mode When the unit is on dose data is continuously accumulated and updated every two seconds To enter the Dose Mode press the DOSE key The Dose Mode display Figur...

Page 37: ...arm indications will continue as long as you remain in the radiation area that triggered the alarm The optional Vibrator Alarm can be used in ad dition to the audio and visual alarms when back ground...

Page 38: ...Thresholds Press the ALARM and DOSE keys You ll see an H for High Level Alarm displayed To read the Low Level Alarm setting press the DOSE key again the display will show an L Press the CLR TEST key...

Page 39: ...the display will show an L Press the CLR TEST key to access the selected Hor L indicators Repeatedly press the ALARM key until you see the desired combination of in dicators AUDio VISual vibrator or n...

Page 40: ...l bar Setting the Alarm Threshold To set the threshold for the selected alarm level Press the CLR TEST key the decimal point and the threshold unit indicator will begin to flash Repeatedly press the D...

Page 41: ...onds The Source Finder Mode The Source Finder Mode allows the unit to lo cate an isolated source In this mode the unit will start clicking if the unit is near radioac tive material As you move closer...

Page 42: ...Mode When the Sleep Mode is enabled most of the unit s circuits will be turned off to conserve battery power Every 5 minutes the unit will wake up for 4 6 seconds and check the cur rent Rate WARNING D...

Page 43: ...p It compares the current Rate with the Rate Alarm thresholds If a Rate Alarm is triggered the unit will stay awake If no Rate Alarm thresholds have been exceeded the unit will go back to sleep for fi...

Page 44: ...de The Data Log lets you record up to 300 indi vidual dose rate data pairs each with an index number for later retrieval This is useful for performing a survey or for cataloging read ings Capturing Da...

Page 45: ...s the RATE and OFF ON keys to gether When the unit turns on the last se quence number recorded will be dis played Press the RATE button to scroll down or the DOSE button to scroll up through the memor...

Page 46: ...se quence number and any new data records will overwrite the previously recorded data in that location Clearing the Data Log To clear all stored data you must be in the Viewing the Data Log mode See t...

Page 47: ...the battery contacts for cor rosion Cleaning the Unit Remove dust moisture and loose dirt from the outside surfaces of the UltraRadiac with a clean soft cloth If necessary the unit may be cleaned wit...

Page 48: ...unter clockwise swing the door open and slide out all four batteries Install fresh batteries in the order shown in Figure 11 CAUTION Be sure to observe the polarity next to each of the four battery sl...

Page 49: ...43 With the batteries correctly installed close and latch the door See Latching the Compartment Door on page 46 Figure 11 Location of the Batteries...

Page 50: ...nt door turn its latch a quarter turn counterclockwise and swing the door open Inspect the four battery contacts on the inside of the door Figure 13 If any corrosion is seen clean it off with a pencil...

Page 51: ...r tight Inspect the O ring seal around the door latch s post Figure 13 If the seal is cracked or broken the unit may no lon ger be watertight For repair contact your local Canberra Service Center When...

Page 52: ...with the latch post before latch will engage When the door is properly closed it will be possible to lay the fastener s D ring down in the cover s fastener recess Note When the door is latched the uni...

Page 53: ...arms INITIALIZATION TIME Operational in less than 5 seconds SETUP TIME Less than one minute for all checks and alarms ACCURACY Linear up to 3 5 Sv h 350 R h 15 and within 20 of the actual dose rate fr...

Page 54: ...hing Detector DETECTOR Energy compensated GM tube GAMMA ENERGY DEPENDENCE 30 60 keV to 1 3 MeV TOTAL ACCUMULATED DOSE READOUT Will not be erased when read resettable to zero as desired RESPONSE TIME A...

Page 55: ...levels are settable over entire dy namic range ALARM TYPES Alarm on dose rate and to tal cumulative dose ALARM LEVELS Two alarm levels avail able for each type to indicate minor or severe hazard AUDI...

Page 56: ...STORAGE TRANSPORT TEMPERATURE 40 F to 158 F 40 C to 70 C HUMIDITY 0 100 WATER IMMERSION 3 ft 1 m for at least 2 hr SAND DUST Operates in winds with expo sure to fine dust and sand particles VIBRATION...

Page 57: ...3 and AN UDR 14 Radiac Set which were designed and qualified to meet the requirements of MIL STD 810E Details available upon re quest Ordering Information Model MRADxyz UltraRadiac Personal Radi ation...

Page 58: ...values in the following tables R Low Setting High Setting Rate 500 R hr 2 R hr Dose 100 mR 10 R Sv Low Setting High Setting Rate 1 Sv hr 100 Sv hr Dose 1 mSv 100 mSv The factory settings can be chang...

Page 59: ...53 CAUTION The System Administrator is responsible for determining and setting the proper operational alarm thresholds for each UltraRadiac...

Page 60: ...R h natural background radiation is less than 20 R h If the Rate increases beyond 999 R h the display will change to mR h micro R one millionth of a roentgen milli m mR one thousandth of a roentgen or...

Page 61: ...alled Rate Rate The amount of radiation measured by the UltraRadiac every 2 seconds then extrapo lated to and displayed as units per hour Roentgen R Unit of measure of radiation exposure moni tors the...

Page 62: ...e by the current Dose Rate then converting the result to minutes If the display reads 999 the maximum your Stay Time is at least 16 5 hours WARNING If the Dose Rate goes up your remaining Stay Time wi...

Page 63: ...pment does not pose a threat to the environment or to hu mans when it becomes obsolete and requires disposal The symbol below also found on your CANBERRA equipment indicates that this equipment should...

Page 64: ...Notes 58...

Page 65: ...or workmanship are discovered within the applicable warranty period as set forth above we shall at our option and cost A in the case of defective software or equipment either repair or replace the sof...

Page 66: ...m the environment is not covered by warranty We are not responsible for damage sustained in transit You should examine shipments upon receipt for evidence of damage caused in transit If damage is foun...

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