HengaoDe HAD-F310 X/Y Radiation Dose Rate Meter
| Brand | HengaoDe |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HAD-F310 |
| Price | USD 42.50 (FOB) |
| Radiation Type | X and Gamma (γ) |
| Detector | Thallium-doped Sodium Iodide [NaI(Tl)] Scintillation Crystal |
| Measurement Range | 0.01–200 µSv/h |
| Display Range | 0.001–200.000 µSv/h |
| Sensitivity | >1500 cps/µSv/h (¹³⁷Cs) |
| Accuracy | ±15% at 100 µSv/h (¹³⁷Cs) |
| Energy Response | 50 keV – 3 MeV |
| Response Time | <1 s |
| Power Supply | 4 × AA 1.5 V alkaline batteries |
| Operating Temperature | −10 °C to +50 °C |
| Relative Humidity | ≤95% RH at 35 °C |
| Dimensions | 210 × 180 × 110 mm |
| Weight | 1.3 kg |
Overview
The HengaoDe HAD-F310 X/Y Radiation Dose Rate Meter is a portable, field-deployable scintillation-based radiation survey instrument engineered for real-time measurement of ambient dose equivalent rate (H*(10)) from X-ray and gamma-ray photon fields. It employs a thallium-doped sodium iodide [NaI(Tl)] scintillation crystal coupled to a high-gain photomultiplier tube (PMT), enabling efficient conversion of ionizing radiation into measurable light pulses. Signal processing is performed by a low-power, high-speed microcontroller with digital pulse-height analysis, ensuring stable counting statistics across the full energy range. The instrument complies with IEC 60846-1:2014 requirements for portable radiation protection dosimeters, and its energy response curve is calibrated against traceable ¹³⁷Cs and ²⁴¹Am reference sources to meet national regulatory benchmarks for environmental and occupational monitoring.
Key Features
- High-sensitivity NaI(Tl) scintillation detector with optimized light collection geometry and PMT voltage stabilization
- Graphical backlit LCD display with 6-digit resolution (0.001–200.000 µSv/h), supporting real-time trend plotting and data hold
- Ergonomic handgrip and detachable shoulder strap for extended field use; integrated LED auxiliary illumination for low-light operation
- User-configurable dose rate alarm thresholds with audible (85 dB @ 30 cm) and visual (flashing red LED) alert activation
- Field-calibratable via adjustable scaling factor input—supports traceable recalibration using certified check sources per ISO/IEC 17025-accredited procedures
- Robust ABS+PC housing rated IP54 for dust and splash resistance; operating life >100 hours on standard alkaline batteries
Sample Compatibility & Compliance
The HAD-F310 is designed for direct measurement of photon-emitting radiation fields in air—no sample preparation or containment is required. It is validated for use in environments ranging from low-background natural radiation (e.g., outdoor ambient surveys) to elevated fields near industrial radiography equipment, nuclear medicine facilities, and decommissioning sites. The instrument meets the performance criteria outlined in GB/T 10263–2022 (Chinese National Standard for Portable Radiation Survey Meters) and aligns with ANSI N42.33-2022 for alarm functionality and response time. While not certified for Class I Division 1 hazardous locations, it is routinely deployed under GLP-compliant QA/QC protocols in environmental monitoring programs accredited to CNAS-CL01:2018 (equivalent to ISO/IEC 17025).
Software & Data Management
The HAD-F310 operates as a standalone instrument with no embedded firmware update capability; however, optional Bluetooth-enabled wireless modules (sold separately, model HAD-BT-01) support real-time telemetry transmission to Android/iOS mobile applications or Windows-based desktop software (HengaoData Logger v3.2). Logged data includes timestamped dose rate values, cumulative dose (µSv), alarm event logs, and battery status—exportable in CSV format for integration into LIMS or radiation safety management systems. All stored records retain audit trail metadata (operator ID, calibration date, location tag), satisfying documentation requirements under 10 CFR 20.2103 and EU Directive 2013/59/Euratom for dose record retention.
Applications
- Environmental radiation baseline mapping and post-incident monitoring (e.g., after transport accidents involving radioactive materials)
- Routine surveillance around medical linear accelerators, brachytherapy suites, and PET/CT imaging centers
- Verification of shielding integrity in industrial radiography bays and non-destructive testing (NDT) enclosures
- Regulatory compliance checks for nuclear power plant perimeter zones and spent fuel storage areas
- First-responder screening during radiological emergency response (RADCON Level 1 scenarios)
- Academic and training applications in health physics laboratories and radiation safety officer (RSO) certification courses
FAQ
Does the HAD-F310 require annual factory recalibration?
No—users may perform functional verification using a long-lived ¹³⁷Cs check source (e.g., 10 kBq activity) at least quarterly. Full recalibration is recommended every 24 months or after physical damage, per ISO/IEC 17025 Clause 6.5.
Can it measure beta or neutron radiation?
No—the NaI(Tl) detector is insensitive to beta particles due to the instrument’s front-panel aluminum filter, and lacks neutron moderation or conversion layers. It is strictly optimized for photons in the 50 keV–3 MeV range.
Is the display readable in direct sunlight?
Yes—the high-contrast monochrome LCD with adjustable backlight intensity (5 levels) maintains legibility under irradiance up to 10,000 lux.
What is the minimum detectable dose rate (MDR) under typical field conditions?
At 1 σ confidence level and 60-second averaging, MDR is 0.012 µSv/h (equivalent to ~0.107 mR/h), verified per ANSI N42.22-2019 Annex B.
Does it support external probe connectivity?
No—the detector assembly is fully integrated. External probes are incompatible due to proprietary PMT biasing and signal conditioning architecture.
