Dosimetry – Sentry EC / Dosimeter & Ratemeter

A personal alarming radiation dosimeter and rate metre is the Radiation Alert® Sentry EC. This model is intended to protect workers whose jobs may expose them to x-rays or gamma radiation.

The small, portable device contains a built-in memory for storing data points for tracking cumulative exposure as well as an energy-compensated tube for a linear reaction to gamma radiation. To create incident reconstruction for analysis, use the free SentryCom Software. Additionally, you may simply adjust the vibrating and auditory alert levels for the dose (>1.0 mR/10 Sv) and dose rate (>1.0 mR/hr/10 Sv/hr) using the programme.

You may select between an unobtrusive quiet mode or loud clicks for each count received by using the audio switch.

Categories: Climatic/Environment Inspection, Radiation Detector

Description

Detector

Energy Compensated GM Tube

Dose Rate Linearity

Better than ±15% up to 15 R

Energy Response

Down to 20 KeV

Accuracy

Typically ±15% of reading (Cs137)

Gamma Sensitivity

1.5 cps/mR/hr (Co60)

Operating Range

Dose Rate: 0.1 mR/hr – 15 R/hr (1 µSv/hr – .15 Sv/hr)
Accumulated Dose: 0.1 mR – 65 R (1 µSv – .65 Sv)

Audible Alarms

Accumulated Dose & Dose Rate, 90db @ 1 ft.

Alarm Thresholds

Default: Dose 500 mR / Rate 50 mR/hr
Sievert Option: Dose 5000 μSv / Rate 500 μSv/hr Alarm and warning levels are user selectable with the optional SentryCom Software.

Switch Functions

Power, Vibrate & Audible Alert, Silent Vibrating Only Alert, and Audio Clicks On/Off.

Power Requirements

9-Volt Alkaline Battery Approx. 1500 hrs at normal background.

Enclosure

Alodized Aluminum Housing w/ Metal Belt Clip

Outputs

Mini-USB

Temperature Range

-20° – + 50°C (-4° – +122°F)

Weight

243 g (8.6 oz)

Size

106 x 67 x 28 mm (4.2 X 2.7 X 1.1 in)

Limited Warranty

1 year limited