Overview
The YD-270 Protection-Level X/Gamma Dose Rate Meter employs a plastic scintillator detector with an energy-compensated GM detector (optional configuration), delivering high sensitivity and a wide measurement range. It is designed for use in complex and demanding X-ray and γ-ray environments, providing accurate measurement of X and γ radiation dose rates.
Features
- High-speed embedded microprocessor ensures real-time responsiveness of monitoring data and operational status;
- Scintillator detector coupled with an imported photomultiplier tube (PMT) as the core radiation sensing element, delivering rapid response to incident X and γ radiation;
- 3.5-inch color touchscreen LCD with a bilingual operator interface (Chinese/English), designed for quick learning and effortless operation;
- Live dose rate trend display, with peak value capture for each single measurement cycle;
- Automatic accumulated dose logging with non-volatile storage — data preserved through power cycles; alarm history accessible for manual review;
- Freely configurable alarm thresholds for both dose rate and accumulated dose;
- 4000-entry alarm data storage capacity; the host unit can also accommodate a built-in GM detector;
- Integrated real-time clock displaying year, month, and date; clock operation is maintained during power interruptions.
Applications
Widely deployed for X and γ radiation monitoring and surveying in medical institutions, CDC, environmental protection, metallurgy, petroleum, chemical industry, radiological laboratories, industrial NDT radiography, radiation processing, mining, and various other radiological settings.
Specifications
| Parameter | Specification |
|---|---|
| Detector | Φ50.8 × 50.8 mm scintillator + photomultiplier tube (PMT); GM counter (energy-compensated) — optional |
| Energy Response | 20 keV ~ 7 MeV |
| Detectable Radiation | X-rays, γ-rays |
| Measurement Range | Dose rate: 30 nSv/h ~ 10 mSv/h (optional 50 nSv/h ~ 1 Sv/h); Accumulated dose: 0 ~ 9999 mSv |
| Display | 3.5-inch color touchscreen LCD |
| Sensitivity | ≥ 1300 cps per µSv/h |
| Relative Intrinsic Error | ≤ ±10% (¹³⁷Cs, at 100 µSv/h) |
| Response Time | 1 s |
| Operating Environment | Temperature: −40°C to +50°C; Relative humidity: ≤95% (at 40°C) |
| Power Supply | 7.4 V rechargeable lithium battery; real-time battery voltage monitoring with low-battery flashing icon alert |
| Housing | Full aluminium alloy construction; rugged integral structure |
| Weight & Dimensions | Approx. 1.3 kg (excl. battery); Host: 85 × 150 × 40 mm; Probe: φ58 × 265 mm (excl. bracket) |
