Mazur Instruments PRM-8000 User manual

PRM-8000
Nuclear Radiation Monitor
Quick Start Guide

2| PRM-8000 Quick Start Guide
Controls, Indicators and
Connections
A 2 Line by 14 Character Backlit LCD
B Radioactive Event LED Indicator
C Back Key
D External Audio and Data Jack
E External DC Power Input Jack
F Up Key
G Down Key
H Sound Port
I Select/Power On Key
J Geiger-Müller Tube Window
Powering On the PRM-8000
Press and hold down until the start up message is displayed on the LCD.

PRM-8000 Quick Start Guide | 3
Home Screen Operation
Toggle Backlight On and Off
or Move up and down through the eight screens:
1. Current Measurement
2. Average Measurement
3. Maximum Measurement
4. Minimum Measurement
5. Total Count Measured
6. Time/Date of Maximum Measurement
7. Current Time and Date
8. Elapsed Time Since Power Up, or Reset
Select Main Menu
“Always-On” Monitoring
Power Management Settings
Power Setting Time of Inactivity Until:
(Set in Preferences) LCD Off Backlight Off
Lowest 60 Seconds 15 Seconds
Medium 10 Minutes 45 Seconds
High Always On Always On
Low Battery Condition 30 Seconds 2 Seconds
NOTE: If LCD is turned off, the PRM-8000 will continue to monitor and
measure radiation including current, average, maximum, minimum and
total-count values. Pressing any key will “wake-up” the display and op-
erations will continue normally until the inactivity threshold of the se-
lected Power Setting is exceeded.
Powering Off the PRM-8000
The PRM-8000 is intended to always be on. Power consumption is kept to a minimum
using the power settings. To power down the unit press and hold down while at the
Home Screen until you are prompted to confirm that you want to power down the device.
Press to confirm. Alternately, the unit can be powered down from the Utilities sub-
menu.
The clock will continue to keep time while the unit is powered down and all settings will be
preserved. However, when the unit is powered back on, all counters (Average, Minimum,
Maximum, Total and Elapsed Time) will be reset.

4| PRM-8000 Quick Start Guide
Navigating the Menu System
Select Main Menu
or Move up and down through the sub-menus:
1. Timed Measure
This function allows users to take measure-
ments over a defined amount of time. This
is useful for detecting small amounts of con-
tamination.
2. Set Units
Users can select either μR/hr, mR/hr,
μSv/hr, CPS or CPM measurement units.
3. Settings
This sub-menu allows the user to custom-
ize the behavior of the PRM-8000. Settings
include those associated with the beeper,
LED, dose-rate alarm, time/date, power set-
tings as well as the control over the averag-
ing performed at low dose rates.
4. Utilities
This sub-menu includes functions to reset
the measurement counters (Average, Mini-
mum, Maximum, Total and Elapsed Time),
perform a hardware reset, power down the
device, load the factory calibration values,
display the voltage of the battery and per-
form the calibration procedure.
5. Ext Audio/Data
This sub-menu is used to control the
behavior of the audio/data jack. The jack
can output audio at three selectable volume
levels, provide a pulse output compatible
with third party software or output a serial
data stream (optional cable required) on
the minute for data collection using a PC.
6. Data Logging
This sub-menu provides functions to control
data logging to the internal logging memory
in the PRM-8000.
7. Language
This allows the user to set the language to
either English or Japanese
Select the desired sub-menu. Repeat the pro-
cess for navigating through the sub-menus
Return to previous menu

PRM-8000 Quick Start Guide | 5
Sub-Menu
Selection:DEFAULT Description Values - Press
to change/select
Timed Measure
Start Starts a timed measurement.
The display will show the run-
ning average during the timed
measurement and a count down
of the minutes. The display
will hold the final value until
dismissed by the user.
Length: 10min Defines the length of the timed
measurement in minutes.
1min, 5min, 10min, 20min,
30min, 60min, 90min
Set Units
mR/hr Sets desired dose rate measure-
ment units
μR/hr, mR/hr, μSv/hr,
CPS, and CPM
Settings
Beeper: Medium Sets beeper volume control OFF, Low, Medium, High
LED: ON Sets LED indicator on or off ON, OFF
Alarm: OFF Sets dose rate alarm on or off ON, OFF
mR/hr Alarm
uSv/hr Alarm
Set Time/Date
Sets the dose rate measure-
ment in mR/hr that will result in
audible alarm
Sets the dose rate measure-
ment in uSv/hr that will result in
audible alarm
Set time and date in 24 hour
format HH:MM:SS, MM:DD:YY
to select digit
to set digit value
save setting and exit
exit without change
Bt-Pwr: Lowest Sets battery Power Setting Lowest, Medium, High
Ex-Pwr: High Sets external Power Setting Lowest, Medium, High
Low AvWin: 20s Low range measurements are
averaged over the number of
seconds chosen in this setting.
20s, 10s, 5s

6| PRM-8000 Quick Start Guide
Sub-Menu
Selection:DEFAULT Description Values - Press
to change/select
Utilities
Reset Counters Resets Current, Minimum, Maxi-
mum, Average, Total Count and
Elapsed Time registers
Hardware Reset Resets device and clears all reg-
isters including Time and Date
Power Down Turns power off and shuts down
all radiation monitoring functions
Load Defaults Loads factory calibration NOTE: This function will
erase existing calibration
data. Use with care.
Display Bat/DC Displays battery and external DC
input voltages
Calibrate Enters the calibration routine.
Two calibrated dose rates are re-
quired - 20mR/hr and 200mR/hr
NOTE: Calibration should
be performed by a certi-
fied lab with a certified
Cs137 source.
Ext Audio/Data
Off Provisions the external audio
and data jack for use with either
headphones or the optional USB
interface cable. The Pulse Out
setting can be used to interface
the PRM-8000 to radiation
graphing software or to other
electronic equipment.
Off, Data, Audio:Low, Au-
dio: Medium, Audio: High,
and Pulse Out
Data Logging
Every: Minute Sets how often a measurement
is stored in the data log memory
Minute or Hour
Start or Stop Starts Logging, or Stops Logging
Status Shows the number of Records
and Memory remaining during
logging and after logging has
been stopped.
Send Data Transmits log data in comma
separated value format at 57,600
baud (requires data cable)
NOTE: This command is
visible only when logging
is stopped.
Language ゲンゴ
English Used to select either English or
Japanese
English, Japanese

PRM-8000 Quick Start Guide | 7
Using the Reset Switch of the PRM-8000
In the unlikely event that the PRM-8000 becomes unresponsive, the device can be reset
using a paper clip. A small hole is located just to the right of the power jack. Insert a paper
clip into the hole to push the reset switch. The start up message will be displayed and all
factory default settings will be in place.
Alternatively, to reset the device, remove the battery, wait 30 seconds and replace the bat-
tery. This will reset the device.
Please note that if the unit has been calibrated and calibration data is found on the device,
at reset, the calibration data will be used.
Replacing the Internal Battery
1. Disconnect any external connections to the power connector and Audio/Data connec-
tor of the PRM-8000.
2. Using a Phillips Head screwdriver carefully remove the four screws located around the
keypad while being careful not to scratch the case or keypad.
High Voltage is present inside the PRM-8000. Avoid any contact with
areas underneath or past the LCD towards the front of the device.
3. Remove the top part of the case and gently place it on it’s face being careful not to
over extend the ribbon cable connecting the keypad to the main board of the PRM-
8000.
4. Using a finger from each hand disconnect the 9-Volt battery by pushing the top part of
the 9-Volt battery away from the battery contacts.
5. Wait 30 seconds for the system to completely de-energize.
6. From the terminal side of the battery lift the battery out over the bracket that is securing
the battery in place.
7. Properly discard the used battery.
8. Orient the new battery so that it is positioned to mate properly with the positive and
negative terminals and use the side of the new battery to spread apart the bracket so
that the battery is secured in place.
9. Push the battery up and be certain that both terminals snap into place.
10. The PRM-8000 should display the startup message and serial number.
11. Be sure to fold the shield into place and gently secure the cover back into position.
12. Reinstall the four Phillips Head screws to complete the procedure being careful not to
over tighten the screws.

DN-PRM8000QS-EN
Mazur Instruments
200 South Wilcox Street #448
Castle Rock, CO 80104 USA
www.MazurInstruments.com