Description

The new RDS-31S/R Multi-purpose Survey Meter continues the line of RADOS survey meters offering modern design and approach to radiation monitoring. RDS-31 is a small hand held, battery operated survey instrument using an energy compensated GM-tube as primary detector. Due to its versatile functions and durability it is suited for a wide range of applications in civil defense, industrial and laboratory use etc. RDS-31 is featuring excellent ergonomics; light weight and easy to handle, with visual and audible alarms and internal vibrator. The large LCD with Energy Save Backlight is well visible even in sunny conditions due to the illumination control. External probes of GMP-12 series, GMP-11/15 and Multirad LLR probes: TGS, Alpha 125 and Alpha Wound can be connected to RDS-31 by cable or by additional adapter extending the capabilities of the instrument. User protection while using external probe by measuring simultanously instrument dose rate.

 TECHNICAL SPECIFICATIONS:

Radiological Characteristics

•  radiation detected: gamma and X-rays, 48keV…3MeV. Alpha, Beta radiation with an external probe

•  detectors:  one energy-compensated GM tube, energy response according to ambient dose equivalent H*(10)

•  dose rate measurement range: 0.01 μSv/h…0.1 Sv/h or 1 μrem/h…10 rem/h

•  dose measurement range: 0.01 μSv…10 Sv or 1 μrem…1000 rem

•  resolution: three signi” cant digits or 0.01 μSv/h on dose rate and 0.01 μSv on dose ( 1 μrem/h on dose rate and 1 μrem on dose)

•  calibration accuracy: ± 5%, 137Cs , calibration direction and in the calibration ” eld, temperature +20 °C (68°F)

•  dose rate linearity: ± 15% ± least signi” cant number 0.05 μSv/h…0.1 Sv/h (5 μrem/h to 10rem/h)

•  variation of the response due to photon radiation energy (RE) and angle of incidence (RE, A): 71% <RE, A <160% (48 keV…3 MeV); ± 60°)

Functional Characteristics

•  two buttons to operate the instrument

•  con” gurable units:  Sv(/h), R(/h), with external detector Gy(/h), cps, cpm, dpm and Bq

•  & exible histogram functions ( dose rate, dose, diagnostic logging depending on con” guration, time stamp, optional location control for mapping and repeating room measurement analysis)

•  additional histogram analyzing capabilities on CSW-software

•  real time clock function

•  con” gurable audible, visual and vibration alarm

•  RF-communication and USB-communication with suitable adapter

•  customized LCD display with 5 digit 14-segment & oating point area and special symbols for alarm, external  probe, battery, RF-communication, vibration alarm, chirp and mute

Electrical Characteristics

•  power supply: 2 AA size batteries (alkaline or NiMH)

•  contacts for external power and charging of NiMH battery (charging conditions +5… +35°C)

•  operation time with fresh alcaline batteries more than 4 months at background radiation at +23°C, 8 h use/24h

•  operation time with fully charged NiMH batteries more than 1 month at background radiation at +23°C, 8 h use/24h. At higher/lower temperatures the operation will be shorter

Mechanical Characteristics

•  case high impact durable plastics reinforced with glass ” bre

•  ergonomic design, rubber grip and cushion around the case

•  enclosure class IP67 (IEC 60529),  water proof including battery compartment

•  dimensions: 100 x 67 x 33 mm (3.93 x 2.63 x 1.29 in)

•  weight: 175 g without batteries (0.385 lb), 220 g with batteries (0.485 lb)

•  wrist/neck strap

•  belt clip

Environmental Characteristics

•  -25°C…+60°C (-40°F to 131°F), operating temperature

•  -40°C…+70°C (-40°F to 158°F), storage temperature

•  relative humidity: up to 85% at +35°C (95 °F)

•  ful” lls the RF-immunity levels of applicable standard

Options

•  electrical cradle or mechanical cradle e.g. for easy vehicle ” xing

•  table top model

•  pocket/belt clip/pouch