The GRAETZ X5C plus SE is an advanced electronic dose-rate measurement system developed for measuring gamma and X-ray radiation. The instrument combines high accuracy, clear display and flexible alarm functions, and is particularly suitable for personnel working in radiation-exposed environments.

Main features

• Energy-compensated Geiger–Müller tube for precise dose and dose-rate measurement

• Large backlit display with clear dose display and graphic indicator

• Four freely programmable alarm levels for both dose and dose rate

• Storage of measurements with time stamping and calculation of remaining safe residence time

• Loud acoustic alarm and menu-driven operation with the option of password protection

• Automatic self-monitoring for increased operational reliability

• Robust, dust- and waterproof construction (IP67) that withstands demanding working environments

• RS-232 interface for data transfer and option for external probes for extended measuring range

Technical specifications

• Dose rate range: 0 nSv/h – 19.99 mSv/h (usable from 1 µSv/h)

• Dose range: 0.01 nSv – 10 Sv (measurement from 0.5 µSv up to 10 Sv)

• Energy spectrum: 40 keV – 1.3 MeV

• Alarm settings: Four programmable thresholds for both dose and dose rate

• Temperature range: –30 °C to +60 °C

• Weight: Approx. 385–400 g including battery

• Power supply: Standard 9 V battery (6LR61)

• Acoustic alarm: Approximately 65 dB at 30 cm distance

• Approval: PTB calibrated and suitable for use in demanding emergency situations and professional applications