RD1-XX
Gamma Radiation Detectors
Description
The RD1-XX is a family of remote gamma radiation detectors designed to connect to the Charthouse ARM-1000 Area Monitor Display Unit, providing remote gamma dose rate readings at distance from the display. Two detector types are available: the RD1-6, an energy-compensated Geiger Mueller detector, and the RD1-8, a Pressurised Ion Chamber detector covering a wide range of gamma energy detection capability.
Both models serve as direct technology replacements for the now-obsoleted Thermo Scientific DA 1-6 and DA 1-8 detectors. When combined with the ARM-1000, the RD1-XX replicates the legacy form and functional performance of the Thermo Scientific RMS-3 / CoDA system — with minimal change costs, streamlined calibration, and no retraining requirements for instrumentation staff.
The RD1-XX series uses a common engineering design across the entire detector family, resulting in common system components and minimised spare part requirements. Similar physical characteristics and mounting requirements to the legacy DA detectors mean field replacement requires minimal site preparation — a direct swap with no structural modifications. Quick Connect / Disconnect connectors provide easy plug-in to the ARM-1000, and the option for an integrated remotely activated analogue check source supports routine source checking without requiring detector removal.
Key Features
Direct replacement for Thermo Scientific DA 1-6 and DA 1-8
Similar physical characteristics and mounting requirements to legacy DA detectors mean field replacement requires minimal site preparation. When paired with the ARM-1000, the RD1-XX replicates the form and functional performance of the Thermo Scientific RMS-3 / CoDA system — a turn-key replacement with minimal change costs. Wide range of gamma energy detection capability is maintained across all models, with multiple detector connector options available to suit different installation configurations.
Two detector types, one common design
The RD1-6 is an energy-compensated Geiger Mueller detector, suitable for general gamma dose rate monitoring across a wide detection range. The RD1-8 is a Pressurised Ion Chamber detector, providing higher sensitivity and extended range — available in multiple range variants from 1 mR/h to 1,000 R/h. Both share a common engineering design across the entire detector family, minimising spare part holdings and simplifying logistics across multi-unit installations.
Automated and streamlined calibration
Streamlined calibration and maintenance procedures deliver time savings for instrumentation staff. The common engineering design across the RD1-XX series means common components, reduced spare part holdings, and simplified logistics across multi-unit installations.
Integrated check source option
An optional integrated remotely activated analogue check source enables routine source checking without removing the detector from its installation position — reducing maintenance time and minimising disruption to continuous monitoring coverage.
Standardised form factor for easy field replacement
All RD1-XX models share the same mounting footprint and physical characteristics as the legacy Thermo Scientific DA detectors they replace. Field replacement requires no structural modifications or site preparation — technicians familiar with the DA 1-6 and DA 1-8 can swap directly. Quick Connect / Disconnect engineered connectors provide reliable, tool-free connection to the ARM-1000, with multiple connector options to suit different installation configurations.
Product Images
Specifications
RD1-6 — Geiger Mueller detector models
RD1-6 (CDM91020): GM detector (energy compensated), 0.1 to 10,000 mR/h
RD1-6CC (CDM91021): GM detector (energy compensated), with integrated check source
RD1-8 — Ion Chamber detector models
RD1-81R (CDM91022): Ion Chamber, 1 to 10,000 mR/h
RD1-82R (CDM91023): Ion Chamber, 0.01 to 100 R/h
RD1-8R3 (CDM91024): Ion Chamber, 0.1 to 1,000 R/h
RD1-8CCR1 (CDM91025): Ion Chamber, 1 to 10,000 mR/h, with integrated check source
RD1-8CCR2 (CDM91026): Ion Chamber, 0.01 to 100 R/h, with integrated check source
RD1-8CCR3 (CDM91027): Ion Chamber, 0.1 to 1,000 R/h, with integrated check source
RD1-8CSR1 (CDM91028): Ion Chamber with analogue check source for EC1-3
RD1-8CSR2 (CDM91029): Ion Chamber with analogue check source for EC1-4
Related Products
