MGP WRM2 Especificaciones descargar pdf (Pagina 6)

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1. DRM-1/2 and DRM-1D

1.1. General Description

The Data Radiation Monitor - DRM-1/2, is an auto switching two GM-tube based dose rate meter and the DRM-

D is a sensitive CsI (Tl) scintillated coupled to a PMT. The DRM-1/2 are dose rate meters for detection, using

state-of-the-art microprocessor-based technology and combined with telemetry using the WRM2 900 MHz or 2.4

GHZ FHSS radio. The DRM is designed for highly stable and accurate dose rate measurements from gamma

radiation. The DRM-1/2 (GM) measuring range is from 0.05 mR/h up to 1000 R/h and the DRM-1D’s measuring

range is from 0.001 mR/h up to 10 mR/h.

The DRM is a lightweight and compact instrument with sophisticated software offering special features and

optimal performance for telemetry data. The wide dynamic range is obtained by the DRM-1’s two GM-Tubes

with automatic range switching and an automatic dead time correction, according to the preset calibration. The

DRM-1D’s sensitive range is obtained by CsI(Tl) scintillator (30*30mm) coupled to PMT and an automatic dead

time correction and back ground subtraction, according to the preset calibration. A special averaging function

smoothes the data reading and maintains fast response time, while keeping the standard deviation at a minimum

for both DRM-1/2 and DRM-1/2D

Software is used to configure (RMV) and calibrate (RMC) the DRM family of detectors.

An automatic self-diagnostic procedure continuously checks both electronics and detectors and reports any case

of detector failure.

The DRM may be used in the following ways:

• by connecting the meter to a PC

• by connecting the meter to a DDC-16/AM-16 Area Monitor (wired)

• by using the internal WRM2 FHSS radio to transmit data

• by connecting the meter to an external WRM transmitter (wireless)

• by using an internal or externally connected network adapter

The meter includes four boards: HV board, CPU board, WRM2 radio and the board for the dual GM-Tube

detectors or a cesium iodine detector. A built-in RS-232 is the connection used for calibration and configuration.

A custom connector is needed when using the WRM external transmitter. The WRM2 FHSS radio is already

included in the DRM-1/2 package and a base station (MGPI P/N: WR2-9001) is needed for reception of

telemetry data. A second DB-9 female connector is available for an optional alarm and display unit for the

DRM-1/1D.

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