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User Manual
Radiation
Meter
PCE-RAM 8
1.Product Introduction
• This product is a built-in high sensitivity reform counter as a detector of radiation dose monitoring instrument,
mainly used to monitor all kinds of radioactive workplaces of X, Beta, Gamma ray radiation, with high sensitivity,
fast response, accurate measurement, wide range and so on.
• Widely used in nuclear power plant, iron and steel chemical industry, radiation processing enterprises, radiation
therapy, reflex laboratory, home decoration radiation and other fields of staff for personal safety protection
monitoring.
2.Main Features
• Monitor X, , rays, high sensitivity, fast response time
• Measure the dose rate in real time and record the cumulative dose
• Over dose alarm, dose rate and metering rate alarm threshold adjustable
• With time calendar function
• Buzzer alarm function
• Low power display function
3.Description of Instrument Panel
1-LCD Display with Backlight
1.1-Pulse and Button Sound Switch
1.2-12 Hour System Symbol
1.3-Clock
1.4-Battery Symbols
1.5-Real-Time Values
1.6-Unit of Measurement
2-Set Function Setting Button (Buzzer sound switch, 24-Hour
switch setting, Time setting, Alarm threshold setting)
3-µSv/h and µR/h Unit Measurement Switch Button
4-Power Switch and Menu Switch Button
5-USB
γ
β
1.7-Scope Indication
1.8-Cumulative Value Symbol and Unit
1.9-Cumulative Value
1.10-Maximum Symbol
1.11-Maximum Value
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1.3
1.2
1.1
5
1.5
1.7
1.8
1.9
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1.4
1.6
1.10
1.11
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4.Technical Indicators
Sensor
Detection Ray
Range
Cumulative Radiation
Sensitivity
Energy Range
Accuracy
Minimum Resolution
Operating Temperature
Storage Temperature
Alarm Method
Power Supply
5.Safety Standard for Human Radiation Dose
Dose limits for workers in the radiation industry
Average effective dose for 5 consecutive years
Effective dose in any year
Annual equivalent dose for extremities (hands or feet) or skin
Annual equivalent dose of eye lens
Dose limits for members of the public
Annual effective dose when the average annual dose for 5
consecutive years does not exceed 1mSv
Individual annual effective dose
Skin annual equivalent dose
Annual equivalent dose of eye lens
6.Instrument Operation Instruction
6-1.Instrument Switch
1.Long press the Switch Button for about 3 seconds to start the instrument; Long press the on button again for
about 3 seconds to shut down the instrument.
2.When the instrument is on, the LCD backlight will automatically reduce the brightness after no operation for one
minute.
3.Press any button again to turn on the LCD backlight again without automatic shutdown function.
6-2.Instrument Switching Unit
1.Press the Unit Button to switch between µSv/h and µR/h, not only the current measured value, but also the
cumulative value and the maximum value (Save the current last display unit each time you shut down).
2.Unit switching formula: 1µSv/h=100µR/h
GM Counter
γ
X, , Radial
β
0.01µSv/h to 9999µSv/h
0.001µSv to 9999µSv
80CPM/µSv (Co-60)
48keV to 3.0MeV
137
<±10% ( CS 1msv/h)
0.01µSv/h
0 to 40°C/32 to 104°F
-10 to 60°C/14 to 140°F
Audible alarm
3.7V Rechargeable Battery
20mSv
50mSv
500mSv
150mSv
5mSv
1mSv
50mSv
15mSv
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6-3.Instrument Menu Setting
Short press the Set Button to enter the menu setting mode, you can set pulse and key sound switch, 24 hours and
12 hours switch, time, alarm threshold of measured value, alarm threshold of cumulative value.
• Pulse and Button sound: ON and OFF two state options
• 24 hours switch: 24 hours and 12 hours can be selected
• Time format: hour: minute
• Measurement Alarm threshold: 0.00-9999µSv/h, the default is 0.5µSv/h
• Cumulative alarm threshold: 0.000-99.99µSv/h, the default value is 3.0µSv/h
6-3-1.Set Pulse and Button Sound Switch
1.Press the Set Button once, then “ ” will flash, LCD will display “ON” or “OFF”, through “ ” or “ ” change
the value, then press the Menu Button to confirm saving and enter the 24-hour setting mode, or long press the
Set Button to exit the setting mode directly.
2. When the acoustic switch is on, the meter will emit a “drop” sound after detecting radiation rays, the stronger
the radiation signal is, the faster the sound frequency will be.
3-2.Set the Switch Between 24 Hour System and 12 Hour System
6-
1.Press the
Set Button once, switch mode through “Menu”, switch to LCD display “12H” or “24H”, through “ ”
or “ ” change the value.
2.Then press the Menu Button to confirm saving and enter the time setting mode, or long press the Set Button to
exit the setting mode directly.
6-3-3.Set Time
ess the Set Button once, switch mode through “Menu”, switch to the hour of time for flashing, through “ ”
1. Pr
or “ ” change the value, then press the Menu Button to confirm saving and enter the minute setting mode, or
long press the Set Button to exit the setting mode directly.
2. Press the Set Button once, switch mode through “Menu”, switch to the time minute flash, through “ ” or “ ”
change the value, then press the Menu Button to confirm saving and enter the alarm threshold setting mode, or
long press the Set Button to exit the setting mode directly.
6-3-4.Set the Alarm Threshold of the Measured Value
1.Press the Set Button once to switch mode through the “Menu”, at this time, the LCD only flashes the value of
measurement display.
2.Through “ ” or “ ” change the value, press the Menu Button to confirm saving and enter the cumulative
threshold setting mode, or long press the Set Button to exit the setting mode directly.
6-3-5.Example Set the Cumulative Threshold
1. Press the Set Button once to switch modes through the “Menu”, at this time the LCD only flashes the ones bit
of the accumulated value, changing the value by “ ” or “ ”.
• Press the Menu Button for the first time to set the cumulative value threshold to one decimal place;
• Press the Menu Button a second time to set the cumulative value threshold to two decimal places;
• Press the Menu Button a third time to set the cumulative value threshold to three decimal places.
• Press the Menu Button a fourth time to save the threshold and exit setting mode.
2.When the cumulative value threshold exceeds 10, the cumulative value threshold can only be set to two decimal
places, then press the Menu Button for the third time to exit the setting mode.
3.Hold down the Set Button to exit the setting mode.
7.Alarm Type
1.Alarm of exceeding the measured value threshold: If the current measured value exceeds the set measured value
threshold, the instrument will make a long alarm.
2.Alarm of exceeding the accumulated value threshold: If the current accumulated value exceeds the set accumulated
value threshold, the instrument will sound two alarms within one second.
3.When the battery of the instrument blinks in the space, the instrument will emit a short and rapid alarm sound,
at this time, you can press any button to stop the current low power alarm.
8.Range Display Type
µSv/h
Level
Display
0.00µSv/h to 0.50µSv/h
Good
Green
0.50µSv/h to 1.00µSv/h
Normal
Yellow
1.00µSv/h to 1000µSv/h
Bad
Red
9.Battery Charge
• The Detector has built-in batteries, so you do not need to replace the batteries.
• When the battery level symbol blinks, it indicates that the battery is low, use a 5V/1A adapter to charge the battery.
• Please remove the battery before long storage or transportation to prevent battery leakage.
10.Maintain
• Meters should be cleaned with damp cloth and non-irritating cleaner when necessary.
• Do not use corrosive or irritating cleaners.
• Please keep the instrument in the allowed temperature and humidity environment for use and storage.
11. Disposal
For the disposal of batteries in the EU, the 2006/66/EC directive of the European Parliament
applies. Due to the contained pollutants, batteries must not be disposed of as household waste.
They must be given to collection points designed for that purpose.
In order to comply with the EU directive 2012/19/EU we take our devices back. We either re-use
them or give them to a recycling company which disposes of the devices in line with law.
For countries outside the EU, batteries and devices should be disposed of in accordance with
your local waste regulations.
If you have any questions, please contact PCE Instruments.
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