Description

UNI-T UT334A Radiation Dose Tester

UNI-T UT334A is a handheld Radiation Dose Tester with highly sensitive GM counter sensor, combined Beta (β ), Gamma(γ), and X-ray radiation detection. It is widely used in home decoration, radiation processing enterprise, health and epidemic prevention, radiation therapy, import and export inspection, building materials, petrochemical, geological survey, scrap steel, industrial nondestructive testing and other environments existing ionizing radiation, personal radiation dose supervision and protection occasions.

 

UNI-T UT334A Applications

UNI-T UT334A is widely used in home decoration, radiation processing enterprise, health and epidemic prevention, radiation therapy, nuclear laboratory, nuclear power plant, import and export inspection, building materials, petrochemical, geological survey, scrap steel, industrial nondestructive testing, and other environments existing ionizing radiation, personal radiation dose supervision and protection occasions.

Total Dose Limit

Professional staff:

The annual average effective dose for 5 consecutive years	200mSv
The effective dose in any year	50mSv
Annual equivalent dose of the lens of the eye	150mSv
Annual equivalent dose for extremities (hands and feet) or skin	500mSv

 

Ordinary people:

Annual effective dose	1mSv
The effective dose for a single year if the average annual dose for 5 years does not exceed lmSv	5mSv
Annual equivalent dose of the lens of the eye	15mSv
Annual equivalent dose for extremities (hands and feet) or skin	50mSv

 

Common sense of radioactivity:

International Standard-1990
Professional staff: 20mSv/year (10uSv/hour)
Ordinary people: 1mSv/year (0.52uSv/hour)

 

UNI-T UT334A Features

• Measure dose rates in real-time and record total doses
• Calibration function
• Adjustable alarm thresholds
• The start time of current dose accumulation can be viewed.
• Scheduled measurement (00-999h)
• Over-limit alarm
• Save the records of the last ten measurements.
• The clock runs normally after the product is turned off.
• Monitor battery status.
• English/Chinese optional
• Sensor fault warning (“Device damaged” will show on the display.)
• In the sleep mode, if the radiation dose exceeds the set alarm threshold, the product will automatically alarm and enter the measurement interface.

UNI-T UT334A Specifications

Sensor	G-M counter tube
Range	0.05uSv-50mSy
Accuracy	-17%∼ 25% based on¹³⁷ CSy
Charging interface	Type-C interface (The green light is on when charging, and off when fully charged.)
Alarm response time	td, < 10s
Alarm threshold accuracy	-17%∼ 25%
Alarm modes	Audio and visual alarms
Detected rays	X, β, and y rays.
Battery	3.7V 1800mAh
Battery life	20 days (continuous measurement, particle sound off)
Product weight	127g
Product size	120*65*25mm

 

UNI-T UT334A Buttons

 : Power/select
 : Step through menus to the left/subtract value
 : Step through menus to the right/add value

 

UNI-T UT334A Operation

• Power on

  Long press 3s to turn on the product and enter the main interface.

• Power off

  Long press for 3s to turn off the product.

  Note:

   When shown on the screen, the product cannot be turned off. If users need to turn it off at this time, enter the “Schedule” interface to stop timing.

• Measure

  Enter the “Measure” interface to view real-time dose rate (0.05uSv-50mSv), average dose rate (0.05uSv-50mSv) and total dose (0.1uSv-9999mSv).

• Schedule

  Enter the “Schedule” interface to set the start delay time (00-99h) and the measurement time (00-999h). Select “Start timing” and press

•  and the product will start the countdown. When the start delay countdown returns to zero, the real-time dose rate, average dose rate, and total dose will also return to zero and the product will start measuring the radiation dose and total dose rate. When the measurement time countdown returns to zero, the product will automatically save the interval measurement data. Users can find these data in the “Records” interface.
  Note: Start delay is the countdown to start the measurement, and the hour, minute, and second can be set. Select “Start timing” and press to start the countdown. When the countdown ends, the measurement begins.

• Records

  After each scheduled measurement, the product will automatically save one history record. A maximum of 10 records can be saved. After 10 records are saved, the new record automatically replaces the last one if users continue to store the new record.

• Delete

  Enter the “Delete” interface to delete current data or historical data. The current data is the average dose rate and total dose. The history data is all data in historical records.

  Note:

   Historical records cannot be restored after being deleted. When shown on the screen, the product cannot enter the “Delete” interface.
  Select “Calibration factor” and press twice, and “Password: 0000” will appear at the bottom of the screen. Press to adjust “0000” to “0018”, and press to confirm. Press or On to adjust the calibration factor, and press to save. It is used to calibrate the error in the range of 20uSv-1uSv.

  Note:

   Cf=1.00 by default
  Calibration factor Cf= Personal dose equivalent Hp (10) reference value/Device indicating value
  Technical specification for calibration (code, name): JJG 1009-2016 Personal Dose Equivalent Hp (10) Monitors for X and y Radiations

• Alarm

  Dose rate: 0.1uSv-999uSv
  Total dose: 1uSv-9999uSv
  The product will raise alarms when the thresholds are reached.

• Unit

  In the unit setting interface, select “unit”, press, and then press or switch between uSv and uGy. The language can be English or Chinese.

• Sound

  In this interface, the alarm volume and alarm times can be set. Adjust the alarm volume to 0, and the sound will be turned off. If the particle sound is turned on, when ions enter the sensor, the product will make a particle sound.

• Clock

  In this interface, the date (year/month/day) and time (hour/minute/second) can be set.

  Note:

   It is recommended to set the clock to the local date and time before using the product.

• Sleep

  Screen sleep: The unit of screen sleep time is a minute. When it is adjusted to, the screen will not sleep.
  Auto shutdown: The unit of auto shutdown time is an hour. When it is adjusted to, the auto shutdown function is turned off. Users only can long press to power off at this point.
  Screen brightness: Adjust the screen brightness.

 

Cautions when using UNI-T UT334A

• Please turn off the product after use. If not used for a long time, please fully charge the product and turn it off. Batteries need to be recharged every 12 months.
• When the battery status is low, charge the battery in time to ensure measurement accuracy.
• Turning on particle sounds reduces battery life.
• The manual version is subject to update without prior notice.

Safety Instructions when using UNI-T UT334A

Accidental fall of product	Please confirm whether the measured values are normal and whether they will be updated. If any abnormality is found, do not use the product in places with strong radiation.
“Device damaged” shows on the display.	Please do not use the product in places with strong radiation.
The operating environment contains explosive and flammable gas or dust.	Do not use the product in this environment.
Waterproof	The waterproof grade of the product is IP40, and cannot get wet or splashed.
Energy response	The X-ray can only be used as a reference to test radiation intensity and cannot meet the energy response requirements.

 

package included