Ludlum 3001

Question 1

What is it?

Answer 1

Radiation detector. Uses 4 external radiation detectors (44-2,44-9,133) to detect alpha beta or gamma radiation

Question 2

3 Modes of operation

Answer 2

Rate- Displays current count, exposure or activity rate
Max-Used to capture highest count activity or exposure rate detected
Count-Allows user to perform a count for a predetermined time. scaler time, averaged rate, time averaged exposure or integrated exposure or dose

Question 3

Log button

Answer 3

Push button allows up to 1000 data points

Question 4

batteries

Answer 4

Uses 4AA batteries 500 hr life

Question 5

Display

Answer 5

Display is automatically backlit

Question 6

Obscure stuff

Answer 6

Different modes can be silent or utilize clicks or sigma audio

Question 7

Obscure stuff

Answer 7

Clicks are always on silent during count mode

Question 8

ON/ACK Button

Answer 8

ON/ACK-On button
Short tap- acknowlege/ silence alarms
Long tap- Start/reset Count timer in count mode will take new background reading in sigma audio

Question 9

UNITS button

Answer 9

Used to switch between primary and secondary units in all modes

Question 10

DETECTOR button

Answer 10

Short tap- switch between active detector (1,2,3,4)
Long press- Only used in device menu. where viewing in detector overload parameter, long press will allow user to view actual current level

Question 11

MODE button

Answer 11

Used to advance between 3 operating modes- Rate MAX Count

Question 12

LOG button

Answer 12

tapping log button will start a count and automatically log the result. Long press of log button will toggle display between timer and reading during count. Audio clicks are disabled during count mode

Question 13

Startup screens

Answer 13

Firmware version
Voltage
Stored data logs

Question 14

Sigma audio

Answer 14

changes audio sound from click to something more useful for scintillation detectors because high count makes click less useful

Question 15

Sigma audio

Answer 15

Unit measures background radiation alarm for 8 seconds on powerup then sets a low threshold rate above background rate, instrument will “beep” when it sees more than threshold value

Question 16

Detector Failure Diagnostic

Answer 16

Can detect when radiation detector is malfunctioning and will flash display to indicate fault. If it stops detecting radiation for a settable number of seconds it will flash zero for current selected units

Question 17

Detector over range

Answer 17

Unit will flash 999 and alarm at top of the screen

Question 18

Detector overload

Answer 18

used to detect failure whether its cable detector or high level of radiation

Question 19

Units

Answer 19

C-Counts per count time
d-Disintegrations per count time
cpm,cps-count rate averaged over count time
dpm, Bq-Disintegration rate, averaged over count time
R/hr,Sv/hr- Exposure or dose rate averaged over count time
R,Sv- Integrated exposure or dose over the count time

Question 20

Specs

Answer 20

Detector-Geiger-Mueller or scintillator or proportional
HV range-400-1500 Vdc
Alarms- Count rate, exposure/dose count alarms
Overload- High count rate saturation protection prevents false display of lower count rates
Zero protection-after a set number of seconds of no pulses from detector, unit will flash zero and alarm audio will be triggered